Tokushima University / Educator and Researcher Directory --- Kidoguchi, Yoshiyuki

Personal Web Page

https://researchmap.jp/read0191783 (researchmap)

Field of Study

○	Combustion Engineering

Subject of Study

○	Reduction of exhaust emissions from direct-injection disel engines (diesel engine, combustion, Emmission, hydrogen, computational fluid dynamics, after treatment) (Simultaneous reduction of NOx and particulate emissions from a direct-injection diesel engine by realizing uniform, rich and high turbulence combustion using high squish combustion chamber)

Book / Paper

Academic Paper (Judged Full Paper):

1.	Yuzuru Nada, Yoshiyuki Kidoguchi, Masayuki Matsumoto, Kazuya Sugiyama, Takumi Oono, Yusuke Fujii and Ryo Horikawa : Effects of spacing between fuel and oxidizer nozzles on NOx emission from spray combustion furnace operating under various oxidizer temperatures, Fuel, Vol.366, Article131398, 2024. (Link to Publication Site) ● Publication site (DOI): 10.1016/j.fuel.2024.131398 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1016/j.fuel.2024.131398 (DOI: 10.1016/j.fuel.2024.131398)
2.	Yuzuru Nada, Yoshiyuki Kidoguchi, Isoda Ryosuke, Honjo Hiroto, Matsumoto Masayuki and Sugiyama Kazuya : Four-step global kinetics mechanism for diluted combustion fueled with kerosene, Fuel, Vol.346, No.128322, 2023. (Link to Publication Site) ● Publication site (DOI): 10.1016/j.fuel.2023.128322 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1016/j.fuel.2023.128322 (DOI: 10.1016/j.fuel.2023.128322)
3.	Yoshiyuki Kidoguchi, Yuzuru Nada, Tatsuya Ichikawa, Haruto Miyoshi and Kazuhiro Sakai : Effect of Pilot Injection on Improvement of Fuel Consumption and Exhaust Emissions of IDI Diesel Engines, SAE Technical Papers, No.2022-32-0013, 2022. (Link to Publication Site) ● Publication site (DOI): 10.4271/2022-32-0013 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.4271/2022-32-0013 (DOI: 10.4271/2022-32-0013)
4.	Yuzuru Nada, Yoshiyuki Kidoguchi, Hidenari Sakai and Yuto Moriyama : Modeling of liftoff heights of non-premixed turbulent flames in co-flows having various temperatures and O₂ concentrations, Fuel, Vol.306, Article121678, 2021. (Tokushima University Institutional Repository) ● Metadata: 116162 (Link to Publication Site) ● Publication site (DOI): 10.1016/j.fuel.2021.121678 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1016/j.fuel.2021.121678 (Tokushima University Institutional Repository: 116162, DOI: 10.1016/j.fuel.2021.121678)
5.	Yoshiyuki Kidoguchi, Ono Masaya, Noda Yuuya and Yuzuru Nada : Characteristics of Heat Release History of Multi-Hole Diesel Spray Affected by Initial Mixture Formation, Wall Impingement and Spray Interaction, SAE Technical Papers, No.2020-01-2119, 2020. (Link to Publication Site) ● Publication site (DOI): 10.4271/2020-01-2119 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.4271/2020-01-2119 (DOI: 10.4271/2020-01-2119)
6.	Yuzuru Nada, Yoshiyuki Kidoguchi, Rui Kikui and Shinnosuke Miyazaki : Effects of inversed-delta injection rate on late combustion and soot emissions from diesel combustion in a constant-volume chamber, Fuel, Vol.279, No.118442, 2020. (Link to Publication Site) ● Publication site (DOI): 10.1016/j.fuel.2020.118442 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1016/j.fuel.2020.118442 (DOI: 10.1016/j.fuel.2020.118442)
7.	Wang Zhenzhen, Zhou Wangzheng, Kamimoto Takahiro, Yoshihiro Deguchi, Yan Junjie, Yao Shunchun, Girase Krunal, Jeon Min-Gyu, Yoshiyuki Kidoguchi and Yuzuru Nada : Two-dimensional temperature measurement in a high temperature and high pressure combustion using CT-TDLAS with a wide scanning laser at 1335-1375nm, Applied Spectroscopy, Vol.74, No.2, 210-222, 2020. (Summary) Tunable diode laser absorption spectroscopy (TDLAS) technology is a developing method for temperature and species concentration measurements with the features of non-contact, high precision, high sensitivity, etc. The difficulty of two-dimensional (2D) temperature measurement in actual combustors has not yet been solved because of pressure broadening of absorption spectra, optical accessibility, etc. In this study, the combination of computed tomography (CT) and TDLAS with a wide scanning laser at 1335-1375 nm has been applied to a combustor for 2D temperature measurement in high temperature of 300-2000 K and high pressure of 0.1-2.5 MPa condition. An external cavity type laser diode with wide wavelength range scanning at 1335-1375 nm was used to evaluate the broadened HO absorption spectra due to the high-temperature and high-pressure effect. The spectroscopic database in high temperature of 300-2000 K and high pressure of 0.1-5.0 MPa condition has been revised to improve the accuracy for temperature quantitative analysis. CT reconstruction accuracy was also evaluated in different cases, which presented the consistent temperature distribution between CT reconstruction and assumed distributions. The spatial and temporal distributions of temperature in the high-temperature and high-pressure combustor were measured successfully by CT-TDLAS using the revised spectroscopic database. (Tokushima University Institutional Repository) ● Metadata: 114332 (Link to Publication Site) ● Publication site (DOI): 10.1177/0003702819888214 (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 31680543 ● Search Scopus @ Elsevier (PMID): 31680543 ● Search Scopus @ Elsevier (DOI): 10.1177/0003702819888214 (Tokushima University Institutional Repository: 114332, DOI: 10.1177/0003702819888214, PubMed: 31680543)
8.	Yuzuru Nada, Yoshiyuki Kidoguchi, Yuto Yamashita, Ryo Furukawa, Ryu Kaya, Hideaki Nakano and Shinichi Kobayashi : Effects of Sub-Chamber Configuration on Heat Release Rate in a Constant Volume Chamber simulating Lean-burn Natural Gas Engines, SAE International Journal of Advances and Current Practices in Mobility, Vol.2, No.2, 1032-1040, 2020.
9.	Shahroni Aizam, Yuzuru Nada, Yoshiyuki Kidoguchi, Nakamatsu Shota and Onoda Katsuki : Experimental investigation of nitrogen oxide emissions from emulsified fuel combustion incorporating a rapid internal mixing injector by using temperaturetime scaling, Fuel, Vol.257, Article116017, 2019. (Link to Publication Site) ● Publication site (DOI): 10.1016/j.fuel.2019.116017 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-85070936329 (DOI: 10.1016/j.fuel.2019.116017, Elsevier: Scopus)
10.	山本憲作, 中野秀亮, 小林慎一, Yuzuru Nada and Yoshiyuki Kidoguchi : 天然ガス希薄燃焼エンジンにおける熱効率向上とNOx 低減の両立(第3 報), Transactions of the Society of Automotive Engineers of Japan, Vol.50, No.1, 7-12, 2019. (Link to Publication Site) ● Publication site (DOI): 10.11351/jsaeronbun.50.7 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390845713048534528 ● Search Scopus @ Elsevier (DOI): 10.11351/jsaeronbun.50.7 (DOI: 10.11351/jsaeronbun.50.7, CiNii: 1390845713048534528)
11.	Arshad Shahroni Mohd Aizam, Yuzuru Nada, Yoshiyuki Kidoguchi, Asao Daisuke and Yoshimura Shinichiro : Rapid emulsification of a fuelwater rapid internal mixing injector for emulsion fuel combustion, Energy, Vol.167, 35-46, 2018. (Link to Publication Site) ● Publication site (DOI): 10.1016/j.energy.2018.10.182 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1016/j.energy.2018.10.182 (DOI: 10.1016/j.energy.2018.10.182)
12.	Yoshiyuki Kidoguchi, Yuzuru Nada, Shota Sangawa, Masato Kitazaki and Daichi Matsunaga : Effect of low load combustion and emissions on fuel dilution in lubricating oil and deposit formation of DI diesel engines fueled by straight rapeseed oil, Fuel, Vol.221, 35-43, 2018. (Tokushima University Institutional Repository) ● Metadata: 112122 (Link to Publication Site) ● Publication site (DOI): 10.1016/j.fuel.2018.01.031 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-85042288622 (Tokushima University Institutional Repository: 112122, DOI: 10.1016/j.fuel.2018.01.031, Elsevier: Scopus)
13.	Yuzuru Nada, So Morimoto, Yoshiyuki Kidoguchi, Ryu Kaya, Hideaki Nakano and Shinichi Kobayashi : Numerical Simulations of Mixture Formation in Combustion Chambers of Lean-Burn Natural Gas Engines Incorporating a Sub-Chamber, SAE Technical Papers, No.2017-01-2280, 2017. (Link to Publication Site) ● Publication site (DOI): 10.4271/2017-01-2280 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-85034436051 (DOI: 10.4271/2017-01-2280, Elsevier: Scopus)
14.	中野秀亮, 小林慎一, Yuzuru Nada and Yoshiyuki Kidoguchi : 天然ガス希薄燃焼エンジンにおける熱効率向上と NOx 低減の両立(第2報，燃焼諸元の影響), Transactions of the Society of Automotive Engineers of Japan, Vol.48, No.5, 981-986, 2017. (Link to Publication Site) ● Publication site (DOI): 10.11351/jsaeronbun.48.981 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390282679591408512 ● Search Scopus @ Elsevier (DOI): 10.11351/jsaeronbun.48.981 (DOI: 10.11351/jsaeronbun.48.981, CiNii: 1390282679591408512)
15.	中野秀亮, 小林慎一, Yuzuru Nada and Yoshiyuki Kidoguchi : 天然ガス希薄燃焼エンジンにおける熱効率向上と NOx 低減の両立(第1報，燃焼コンセプト), Transactions of the Society of Automotive Engineers of Japan, Vol.48, No.5, 975-980, 2017. (Link to Publication Site) ● Publication site (DOI): 10.11351/jsaeronbun.48.975 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390282679591403264 ● Search Scopus @ Elsevier (DOI): 10.11351/jsaeronbun.48.975 (DOI: 10.11351/jsaeronbun.48.975, CiNii: 1390282679591403264)
16.	賀谷龍, 小林慎一, Yuzuru Nada and Yoshiyuki Kidoguchi : 天然ガス希薄燃焼エンジンにおけるセンタ直噴の効果に関する研究(天然ガスエンジンの熱効率向上), Transactions of the Society of Automotive Engineers of Japan, Vol.47, No.5, 1013-1018, 2016. (Link to Publication Site) ● Publication site (DOI): 10.11351/jsaeronbun.47.1013 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390282679589497984 ● Search Scopus @ Elsevier (DOI): 10.11351/jsaeronbun.47.1013 (DOI: 10.11351/jsaeronbun.47.1013, CiNii: 1390282679589497984)
17.	Mohd Mohd Al-Hafiz Nawi, Naoya Uwa, Yuki Ueda, Yuzuru Nada and Yoshiyuki Kidoguchi : Droplets Behavior and Evaporation of Diesel Spray Affected by Ambient Density after Pilot Injection, SAE Technical Papers, Vol.2015-32-0724, 2015.
18.	Takahiro Kamimoto, Yoshihiro Deguchi, Taku Takagi, Yoshiyuki Kidoguchi and Yuzuru Nada : CT半導体レーザ吸収法を用いた高温・高圧域における2次元温度分布計測の特性評価, Transactions of the Society of Automotive Engineers of Japan, Vol.46, No.6, 1031-1037, 2015. (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390001204613616256 (CiNii: 1390001204613616256)
19.	Yoshiyuki Kidoguchi, Junpei Nozaki, Yasufumi Hieda, Koki Shimizu and Yuzuru Nada : Effect of Improving Spray Development and Evaporation on Emissions from DI Diesel Engines Fueled with Straight Rape-seed Oil, SAE Technical Papers, No.2015-01-1925, 2015. (Link to Publication Site) ● Publication site (DOI): 10.4271/2015-01-1925 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.4271/2015-01-1925 (DOI: 10.4271/2015-01-1925)
20.	Yuzuru Nada, Shintaro Shibata, Masahiko Imaoka and Yoshiyuki Kidoguchi : Effect of the distance between fuel and oxidizer nozzles on NOx emissions from spray combustion furnaces incorporating high-temperature preheated oxidizers, Journal of Thermal Science and Technology, Vol.10, No.JTST0007, 2015. (Link to Publication Site) ● Publication site (DOI): 10.1299/jtst.2015jtst0007 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-84939817755 (DOI: 10.1299/jtst.2015jtst0007, Elsevier: Scopus)
21.	Yuzuru Nada, Y. Komatsubara, T. Pham, F. Yoshii and Yoshiyuki Kidoguchi : Evaluation of NOx Production Rate in Diesel Combustion Based on Measurement of Time Histories of NOx Concentrations and Flame Temperature, SAE International Journal of Engines, Vol.8, No.1, 303-313, 2015. (Link to Publication Site) ● Publication site (DOI): 10.4271/2014-32-0133 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-84953855435 (DOI: 10.4271/2014-32-0133, Elsevier: Scopus)
22.	Mohd Mohd Al-Hafiz Nawi, Yoshiyuki Kidoguchi, M. Nakagiri, N. Uwa, Yuzuru Nada and S. Miyashiro : Macro- and Micro-scale Observation on Dynamic Behavior of Diesel Spray Affected by Ambient Density and Temperature, SAE Technical Papers, Vol.2014-32-0125, 2014. (Link to Publication Site) ● Publication site (DOI): 10.4271/2014-32-0125 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.4271/2014-32-0125 (DOI: 10.4271/2014-32-0125)
23.	Ali Fawzi Mohd Mas, Manshoor Bukhari, Yoshiyuki Kidoguchi and Yuzuru Nada : Distribution of Two-stage Direct Injection CNG-air Mixture near Lean Limit using CFD, Applied Mechanics and Materials, Vol.465, 448-452, 2014. (Link to Publication Site) ● Publication site (DOI): 10.4028/www.scientific.net/AMM.465-466.448 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-84891910765 (DOI: 10.4028/www.scientific.net/AMM.465-466.448, Elsevier: Scopus)
24.	Tomoaki Yatsufusa, Yoshiyuki Kidoguchi and Daisuke Nakagawa : Improvement of Emissions and Burning Limits in Burner Combustion using an Injector on the Concept of Fuel-water Internally Rapid Mixing, Journal of Energy and Power Engineering, 2013. (Keyword) combustion / Burner (Link to Publication Site) ● Publication site (DOI): 10.17265/1934-8975/2014.01.002 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.17265/1934-8975/2014.01.002 (DOI: 10.17265/1934-8975/2014.01.002)
25.	Yoshiyuki Kidoguchi, Yuzuru Nada, Takashi Yano, Azwan Sapit and Misato Nakagiri : Analysis of diesel spray evaporation process in high density and high temperature atmosphere, Transactions of The Japan Society of Mechanical Engineers, Series B, Vol.79, No.799, 399-405, 2013. (Summary) Diesel engines, in recent years, come to apply high pressure charging and high EGR to improve engine performance. In this situation, it is important to study on diesel spray behavior and mixture formation under those kinds of condition. This study investigates diesel spray development and micro-scale characteristics of droplets evaporation including atomization under high density and high temperature atmosphere. Experiment was carried out by shadowgraph photography method. Our system has a nano-spark light source to illuminate spray injected into spray chamber. The image analysis can reveal droplets size-distribution and droplets dynamic behavior at spray boundary. Results indicate that, at early stage of injection, high atmospheric density accompanied with high temperature greatly affects droplets atomization and evaporation at spray boundary. High density atmosphere produces small-size droplets. Evaporation of large-size droplets is improved with high density and high temperature atmosphere. (Keyword) diesel engine / Spray / Droplets / evaporation / Atomization / High Density Atmosphere (Link to Publication Site) ● Publication site (DOI): 10.1299/kikaib.79.399 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390001206261451520 ● Summary page in Scopus @ Elsevier: 2-s2.0-84876919117 (DOI: 10.1299/kikaib.79.399, CiNii: 1390001206261451520, Elsevier: Scopus)
26.	Azwan Sapit, Takashi Yano, Yoshiyuki Kidoguchi and Yuzuru Nada : Effect of Wall Configuration on Atomization of Rapeseed Oil Diesel Spray Impinging on the Wall, Applied Mechanics and Materials, Vol.315, 320-324, 2013. (Link to Publication Site) ● Publication site (DOI): 10.4028/www.scientific.net/AMM.315.320 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-84876378614 (DOI: 10.4028/www.scientific.net/AMM.315.320, Elsevier: Scopus)
27.	Ali Fawzi Mohd Mas, Yoshiyuki Kidoguchi and Yuzuru Nada : Effect of Gas-jet Ignition Technique on the Extension of CNG Lean Combustion Limit, Applied Mechanics and Materials, Vol.315, 288-292, 2013. (Link to Publication Site) ● Publication site (DOI): 10.4028/www.scientific.net/AMM.315.288 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-84876401533 (DOI: 10.4028/www.scientific.net/AMM.315.288, Elsevier: Scopus)
28.	Sapit Azwan, Nagayasu Sho, Tsuboi Yasunori, Yuzuru Nada and Yoshiyuki Kidoguchi : A Study on Improvement of Diesel Spray Characteristics Fueled by Rape-seed Oil, SAE International Journal of Fuels and Lubricants, Vol.5, No.1, 529-539, 2011.
29.	Ali Fawzi Mohd Mas, Yusuke Oka, Yoshiyuki Kidoguchi, Tomoaki Yatsufusa and T Kaida : Improvement of Combustion of CNG Engine using CNG Direct Injection and Gas-jet Ignition Method, SAE Technical Papers, No.2011-01-1994, 2011. (Link to Publication Site) ● Publication site (DOI): 10.4271/2011-01-1994 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.4271/2011-01-1994 (DOI: 10.4271/2011-01-1994)
30.	Khalid Amir, Keisuke Hayasi, Yoshiyuki Kidoguchi and Tomoaki Yatsufusa : Effect of Air Entrainment and Oxygen Concentration on Endothermic and Heat Recovery Process of Diesel Ignition, SAE Technical Papers, No.2011-01-1834, 2011. (Link to Publication Site) ● Publication site (DOI): 10.4271/2011-01-1834 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.4271/2011-01-1834 (DOI: 10.4271/2011-01-1834)
31.	野毛宏文, 細見尚希 and Yoshiyuki Kidoguchi : バイオディーゼル混合燃料の熱分解と微粒子低減に関する基礎研究, Transactions of The Japan Society of Mechanical Engineers, Series B, Vol.77, No.774, 360-367, 2011. (Link to Publication Site) ● Publication site (DOI): 10.1299/kikaib.77.360 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1299/kikaib.77.360 (DOI: 10.1299/kikaib.77.360)
32.	Yoshiyuki Kidoguchi, 中尾誠志, 岡祐介 and Tomoaki Yatsufusa : A Study on Lean Combustion in a Direct Injection CNG Engine using Injection Control, Transactions of the Society of Automotive Engineers of Japan, Vol.41, No.4, 859-864, 2010. (Keyword) Gas Engine / combustion / Ignition / Engine Performance / CNG / Direct Injection / Two-stage Injection / Gas-jet Ignition (Link to Publication Site) ● Publication site (DOI): 10.11351/jsaeronbun.41.859 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1520572359056725120 ● Search Scopus @ Elsevier (DOI): 10.11351/jsaeronbun.41.859 (DOI: 10.11351/jsaeronbun.41.859, CiNii: 1520572359056725120)
33.	Yoshiyuki Kidoguchi : OH-RADICAL BEHAVIOR OF UNSTEADY LIFTED FLAME BASED ON INSTANTANEOUS CHANGE OF EQUIVALENCE RATIO, International Journal of Automotive Technology, Vol.10, No.6, 663-668, 2009. (Keyword) Lifted flame / Premixed flame / Triple flame / Unsteady flame / OH-PLIF / TRIPLE FLAME / JET FLAMES / STABILIZATION / PROPAGATION / TURBULENT (Link to Publication Site) ● Publication site (DOI): 10.1007/s12239-009-0078-1 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1007/s12239-009-0078-1 (DOI: 10.1007/s12239-009-0078-1)
34.	Tomoaki Yatsufusa, Yoshiyuki Kidoguchi, ADAM Abdullah and Gomi Tomonori : Measurement of particle diameter in diesel spray by long-distance microscopic shadow-graph photography, Atomization, Vol.18, No.63, 88-95, 2009. (Keyword) Atomization / Spray / Nano-spark light source / Shadow-graph / Optical measurement (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1520009409430588416 (CiNii: 1520009409430588416)
35.	Tomoaki Yatsufusa, Yoshiyuki Kidoguchi, Miyamoto Takayuki, Khalid Amir, Kawakami Jun and Omae Kazuhiro : Effects of ambient density and temperature on development and combustion of diesel spray, Transactions of the Society of Automotive Engineers of Japan, Vol.40, No.5, 1235-1241, 2009. (Keyword) Diesel Engine / Combustion / Spray / Mixture Formation (Link to Publication Site) ● Publication site (DOI): 10.11351/jsaeronbun.40.1235 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390001204614326400 ● Search Scopus @ Elsevier (DOI): 10.11351/jsaeronbun.40.1235 (DOI: 10.11351/jsaeronbun.40.1235, CiNii: 1390001204614326400)
36.	Tomoaki Yatsufusa, Kawakami Jun, Yoshiyuki Kidoguchi, Khalid Amir, Fujita Yasushi and Omae Kazuhiro : Effects of supercharging, swirl strength and fuel injection pressure on development and combustion of diesel spray, Transactions of the Society of Automotive Engineers of Japan, Vol.40, No.3, 755-761, 2009. (Summary) Interaction of fuel spray and surrounding air plays important role to mixture formation, ignition and combustion processes in diesel combustion. Effects of supercharging, swirl strength and fuel injection pressure on development, ignition and combustion process of diesel spray were investigated by using free piston type rapid compression machine. Detailed observation of the spray was carried out by visualization including schlieren photography and direct photography. The experiments show the results as below. There is an optimum strength in swirl for favorable mixture formation. Higher supercharging pressure makes swirl more effective. Higher injection pressure increases the amount of well-prepared mixture prior to ignition, thus it results less smoke. (Keyword) Diesel Engine / Combustion / Spray / Swirl / Rapid Compression Machine (Link to Publication Site) ● Publication site (DOI): 10.11351/jsaeronbun.40.755 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390001204612876928 ● Search Scopus @ Elsevier (DOI): 10.11351/jsaeronbun.40.755 (DOI: 10.11351/jsaeronbun.40.755, CiNii: 1390001204612876928)
37.	Adam Abdullah, Tomonori Gomi, Tomoaki Yatsufusa, Yoshiyuki Kidoguchi and Kei Miwa : Analysis of Droplet Evaporation Process of Diesel Spray during Ignition Delay Period, COMODIA2008, 377-382, 2008. (Summary) In diesel combustion, spray evaporation and mixture formation during ignition delay period play an important role in ignition, combustion and emission production. Therefore, this study focused on diesel fuel evaporation process during ignition delay period. Two types of shadowgraph photography method were employed in this experiment: single and double nano-spark shadowgraph photography methods. Single nano-spark shadowgraph photography enables us to capture relatively clear still image of evaporating spray including fuel droplets, liquid phase and vapor phase. On the other hand, double nano-spark shadowgraph photography can record the double exposure images of droplets and liquid phase that can measure droplets velocity and their flying direction. Droplets velocity and flying direction have an influence on droplets evaporation and, furthermore, mixture formation processes. Therefore, the velocity vector distribution of the droplets gives suggestive information on mixture formation during ignition delay period. Results show that spray evaporation begins immediately after start of fuel injection under the condition of high ambient temperature, in particular, at the middle of the spray. Spray atomization is fast promoted at this region, leading to ignition. The ambient temperature and injection pressure affect the droplet size and the number of droplets. Furthermore, droplets behavior, in particular flying direction at spray boundary, is strongly affected by the shear stress caused by the ambient temperature and injection pressure. (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390001205884025728 ● Summary page in Scopus @ Elsevier: 2-s2.0-77953037075 (CiNii: 1390001205884025728, Elsevier: Scopus)
38.	Yoshiyuki Kidoguchi, Yasutaka Sato, Tomoaki Yatsufusa and Kei Miwa : Development of Diesel Soot Aftertreatment System using Barrier Discharge Plasma and Oxidation Catalyst, COMODIA2008, 745-752, 2008. (Summary) This study is concerned with an aftertreatment system of diesel soot. The system first causes a non-thermal barrier discharge plasma reaction. Exhaust NO is converted into NO_2 by O_3 and activated oxygen radicals in the atmosphere of the plasma reaction. The produced NO_2 gas is then introduced into soot filter and is used to improve soot oxidation. NO_2 gas has an effect to start soot oxidation at low temperature. Moreover, this study employs a cheap oxidation catalyst made from iron oxides to promote soot oxidation. This paper tries to improve NO conversion into NO_2 and soot oxidation so as to apply the system to an engine. Results show that exhaust gas flow caused by configuration of plasma reactor has a great effect on improving conversion efficiency of NO into NO_2. High turbulence flow activates chemical reaction between NO and plasma gases. Honeycomb filter with wall-flow structure is used for soot oxidation. The iron oxide catalyst is blended about 30% in weight in the structural materials of the honeycomb before manufacturing the filter. The filter with the oxidation catalyst has a great effect on soot oxidation free from CO production with keeping low temperature oxidation of soot. (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390001205883243136 ● Summary page in Scopus @ Elsevier: 2-s2.0-84879670720 (CiNii: 1390001205883243136, Elsevier: Scopus)
39.	Yoshiyuki Kidoguchi, Yoshihisa Nakamura, Nobuo Nakajima, Yoshinori Fukui and Kei Miwa : Control of Injection and Ignition to Improve Ignitability of CNG Jet, Transactions of The Japan Society of Mechanical Engineers, Series B, Vol.74, No.743, 1655-1661, 2008. (Summary) This study tried to improve ignitability of intermittent CNG jet for gas-fuelled engines. Fundamental experiment was carried out using a constant volume combustion chamber. CNG was directly injected into the combustion chamber by a gas injector and the jet was ignited by a spark plug. The effect of injection control and spark position on ignition and combustion of CNG jet was investigated by high-speed schlieren photography, combustion pressure measurement, and analysis of gas flow employing laser sheet technique and numerical calculation. Results show that ignitability of CNG jet is improved by controlling jet velocity. Ignition near injector at jet boundary is effective to reduce jet velocity, resulting in improvement of ignitability. Multiple injection was applied to CNG jet combustion. At the multiple injection, CNG is ignited after the end of the first injection. The second injection supports the development of initial flame, and CNG is supplied to the flame during the third injection. Multistage injection is effective to reduce initial jet velocity and promote initial flame development, leading to high ignitability of CNG jet with high injection pressure. Moreover, when CNG jet is impinged to the spark plug, jet velocity is further reduced and flame development is also improved, which produces higher ignitability and prevents wall quenching. (Keyword) Internal Combustion Engine / Gaseous Fuel / Combustion / Ignition / CNG / Direct Injection / Spark Ignition / Jet / Flame Development (Link to Publication Site) ● Publication site (DOI): 10.1299/kikaib.74.1655 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1520009407709947520 ● Summary page in Scopus @ Elsevier: 2-s2.0-53149134329 (DOI: 10.1299/kikaib.74.1655, CiNii: 1520009407709947520, Elsevier: Scopus)
40.	Yoshiyuki Kidoguchi, Yasushi Fujita, Kazuhiro Umemoto, Kei Miwa and Kazuhiro Omae : A Study on Multi-hole Spray Interaction and Mixture Formation in Diesel Combustion, Transactions of the Society of Automotive Engineers of Japan, Vol.39, No.3, 137-143, 2008. (Keyword) Diesel Engine / Combustion / Spray / Swirl / Multi-hole Nozzle / Mixture Formation / Rapid Compression Machine (Link to Publication Site) ● Publication site (DOI): 10.11351/jsaeronbun.39.3_137 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1520009408453875712 ● Search Scopus @ Elsevier (DOI): 10.11351/jsaeronbun.39.3_137 (DOI: 10.11351/jsaeronbun.39.3_137, CiNii: 1520009408453875712)
41.	Hwa Seong Jun, Yoshiyuki Kidoguchi, Kwon Tae Kim and Kei Miwa : Characteristics of Lifted Flame Resulting from Impulsive Change of Equivalence Ratio, Journal of the Combustion Society of Japan, Vol.50, No.152, 145-151, 2008. (Keyword) Lifted Flame / Premixed Flame / Triple Flame / Unsteady Flame / Equivalence Ratio Conversion (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390001205197338496 (CiNii: 1390001205197338496)
42.	Nakamura Yoshihisa, Yamamoto Kazunari, Nakajima Nobuo, Yoshiyuki Kidoguchi and Kei Miwa : Noble Hydrogen Engine with Knock-less and Low NOx Emission Employing Hydrogen Gas-jet Combustion and Z-crankshaft Mechanism, Transactions of The Society of Automotive Engineers, No.2007-24-0122, 1-9, 2007. (Link to Publication Site) ● Publication site (DOI): 10.4271/2007-24-0122 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-84877469002 (DOI: 10.4271/2007-24-0122, Elsevier: Scopus)
43.	Noge Hirofumi, Hasagawa Satoshi, Yoshihara Yuichi, Yoshiyuki Kidoguchi and Kei Miwa : 側鎖構造をもつディーゼル燃料の拡散燃焼バーナによるすす生成に関する研究, Transactions of the Society of Automotive Engineers of Japan, Vol.38, No.5, 95-100, 2007. (Keyword) Combustion / Soot / Diesel Fuel / Pyrolysis / PAHs / Soot Precursor (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1520853833538610816 (CiNii: 1520853833538610816)
44.	Adam Abdullah, Inukai Naoki, Yoshiyuki Kidoguchi and Kei Miwa : A Study on Droplets Evaporation at Diesel Spray Boundary during Ignition Delay Period, Transactions of The Society of Automotive Engineers, No.2007-01-1893, 1-11, 2007. (Link to Publication Site) ● Publication site (DOI): 10.4271/2007-01-1893 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-85072419780 (DOI: 10.4271/2007-01-1893, Elsevier: Scopus)
45.	Jazair Wira, Harada Toru, Kubo Syunsuke, Yoshiyuki Kidoguchi and Kei Miwa : Improvement of Emission in a DI Diesel Engine Fuelled by Bio-diesel Fuel and Waste Cooking Oil,, Transactions of The Society of Automotive Engineers, No.2007-01-2029, 1-10, 2007. (Link to Publication Site) ● Publication site (DOI): 10.4271/2007-01-2029 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.4271/2007-01-2029 (DOI: 10.4271/2007-01-2029)
46.	Okamoto Shingo, Shibamoto Ryota, Yoshiyuki Kidoguchi and Kei Miwa : 高乱流燃焼ディーゼル機関の排気低減におよぼすEGRおよびパイロット噴射の効果, Transactions of the Society of Automotive Engineers of Japan, Vol.38, No.2, 93-99, 2007. (Keyword) Diesel Engine / diesel engine / Combustion / combustion / Emission / emission / EGR / egr / Pilot Injection / pilot injection / Combustion Chamber / combustion chamber / Turbulence / turbulence (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1520853832156013312 (CiNii: 1520853832156013312)
47.	Noge Hirofumi, Yoshihara Yuichi, Yoshiyuki Kidoguchi and Kei Miwa : Soot Precursor and PM Formation in Diffusion Flame Using Thermally Decomposed Aliphatic Diesel Fuel, Transactions of The Japan Society of Mechanical Engineers, Series B, Vol.73, No.725, 328-334, 2007. (Summary) Experimental work was performed to investigate formation of soot precursor and PM in diesel combustion process using a flow reactor and a laminar co-flow diffusion burner. Thermally decomposed aliphatic diesel fuel produced in the flow reactor was supplied directly to the burner as fuel. Measurements were conducted in the flow reactor, in the flame, and the exhaust for light hydrocarbons, low molecular weight aromatics, PAHs, soot precursor, and PM. Results show that many PAHs ranging from two to five-member ring are already formed as well as light hydrocarbon such as C_2H_4, C_2H_2 and CH_4 during pyrolysis in the flow reactor. Exhaust PM is subject to be formed when abundant C_2H_2, Benzene, PAHs are produced during high temperature thermal decomposition of aliphatic diesel fuel, and the structure of PM has long chain-like aggregation. Measured fluorescence spectrometry indicates 464nm peak. This peak is caused by soot precursor, which is in the SOF extracted from PM. (Keyword) Combustion / Combustion Products / Thermal Decomposition / Diesel Fuel / Soot Formation / Soot Precursor / PAHs / Spectroscopic Measurement (Link to Publication Site) ● Publication site (DOI): 10.1299/kikaib.73.328 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1520853833693626368 ● Summary page in Scopus @ Elsevier: 2-s2.0-34248336671 (DOI: 10.1299/kikaib.73.328, CiNii: 1520853833693626368, Elsevier: Scopus)
48.	Yamamoto Kazunari, Suzuki Yasuaki, Hatsuura Yoshihiko, Yoshiyuki Kidoguchi and Kei Miwa : Control of Hydrogen Combustion in an Internal Combustion Engine Employing Z-crankshaft Mechanism using Hydrogen Direct Injection and Spark Ignition, Transactions of the Society of Automotive Engineers of Japan, Vol.37, No.6, 91-96, 2006. (Keyword) Spark ignition engine / Hydrogen engine / Combustion / Gas jet / Direct injection / Z-crankshaft mechanism (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1520853834059790720 (CiNii: 1520853834059790720)
49.	Suminori Tanaka, Takakura Shinya, Matsubara Syota, Murakami Yuichiro, Yoshiyuki Kidoguchi, Kei Miwa, Kei-ichiro Murai and Toshihiro Moriga : A Study on Low Temperature Oxidation of PM in Diesel Exhaust by using Non-thermal Plasma, Transactions of the Society of Automotive Engineers of Japan, Vol.37, No.6, 73-78, 2006. (Keyword) Diesel engine / Emission / After-treatment / Particulate / Catalyst / Barrier discharge plasma (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1520009408780993664 (CiNii: 1520009408780993664)
50.	Kei-ichiro Murai, Yuichiro Murakai, Tomoko Sei, Masahiro Katoh, Ichiro Nakabayashi, Toshihiro Moriga, Suminori Tanaka, Yoshiyuki Kidoguchi and Kei Miwa : Total Oxidation of Activated Carbon over PdO-CeO₂/TiO₂-Al₂O₃ Catalyst, International Journal of Modern Physics B, Vol.20, No.25-27, 3920-3925, 2006. (Link to Publication Site) ● Publication site (DOI): 10.1142/S0217979206040593 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-33751300538 (DOI: 10.1142/S0217979206040593, Elsevier: Scopus)
51.	Noge Hirofumi, Yoshiyuki Kidoguchi and Kei Miwa : A Study on NO Reduction Caused by Thermal Cracking Hydrocarbons during Rich Diesel Combustion, JSME International Journal, Series B: Fluids and Thermal Engineering, Vol.49, No.2, 526-532, 2006. (Summary) This study tries to investigate the reduction of nitric oxide by thermally cracked hydrocarbons under rich condition during diesel combustion. Experiments using flow reactor system, which follows the chemical process of fuel at high temperature and atmospheric pressure, show that thermal cracking of fuel starts at about 1000K, and lower hydrocarbons mainly composed of C_2H_4 and CH_4 are formed. NO can be reduced when fuel is thermally cracked and oxidized. A larger amount of NO is reduced when thermal cracking hydrocarbons are increased in quantity under rich and high temperature condition. Among decomposed hydrocarbons, C_2H_4 is easily decomposed and affects deNO mechanism. Chemical kinetic calculation using CHEMKIN III reveals the mechanism. NO is reduced through the reaction of HCCO or CH_2 with NO. In these reaction paths, C_2H_2 is an essential species. The computation also shows that this deNO mechanism can be actualized in the practical diesel combustion. (Keyword) Combustion / Combustion Products / NOx / Diesel Fuel / Hydrocarbon / Chemical Reaction / Thermal Cracking (Link to Publication Site) ● Publication site (DOI): 10.1299/jsmeb.49.526 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390001204674391424 ● Search Scopus @ Elsevier (DOI): 10.1299/jsmeb.49.526 (DOI: 10.1299/jsmeb.49.526, CiNii: 1390001204674391424)
52.	Yoshiyuki Kidoguchi, Kei Miwa and Noge Hirofumi : DeNOxMechanism Caused by Thermal Cracking Hydrocarbons in Stratified Rich Zone during Diesel Combustion, International Journal of ENGINE RESEARCH, Vol.6, No.6, 547-556, 2005.
53.	野毛宏文, Yoshiyuki Kidoguchi and Kei Miwa : A Study on NO Reduction Mechanism Caused by Thermal Cracking Hydrocarbons during Rich Diesel Combustion, Transactions of The Japan Society of Mechanical Engineers, Series B, Vol.71, No.708, 229-235, 2005. (Summary) This study tries to investigate the reduction of nitric oxide by thermally cracked hydrocarbons under rich condition during diesel combustion. Experiments using flow reactor system, which follows the chemical process of fuel at high temperature and atmospheric pressure, show that thermal cracking of fuel starts at about 1000K, and lower hydrocarbons mainly composed of C_2H_4 and CH_4 are formed. NO can be reduced when fuel is thermally cracked and oxidized. A larger amount of NO is reduced when thermal cracking hydrocarbons are increased in quantity under rich and high temperature condition. Among decomposed hydrocarbons, C_2H_4 is easily decomposed and affects deNO mechanism. Chemical kinetic calculation using CHEMKIN III reveals the mechanism. NO is reduced through the reaction of HCCO or CH_2 with NO. In these reaction paths, C_2H_2 is an essential species. The computation also shows that this deNO mechanism can be actualized in the practical diesel combustion. (Keyword) Combustion / Combustion Products / NOx / Diesel Fuel / Hydrocarbon / Chemical Reaction / Thermal Cracking (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1520853833224259072 ● Summary page in Scopus @ Elsevier: 2-s2.0-27744535111 (CiNii: 1520853833224259072, Elsevier: Scopus)
54.	Suminori Tanaka, Kazunori Nakagawa, Eiji Kanezaki, Masahiro Katoh, Kei-ichiro Murai, Toshihiro Moriga, Ichiro Nakabayashi, Shigeru Sugiyama, Yoshiyuki Kidoguchi and Kei Miwa : Catalytic Activity of Iron Oxides Supported on γ-Al₂O₃ for Methane Oxidation, Journal of the Japan Petroleum Institute, Vol.48, No.4, 223-228, 2005. (Summary) Three kinds of catalysts of goethites supported on γ-Al2O3 (Fe/γ-Al2O3), SiO2-Al2O3 (Fe/SiO2-Al2O3) and SiO2 (Fe/SiO2) were investigated in terms of the catalytic activity of methane oxidation. The specific surface areas of these catalysts were larger in common than the area of goethite with no supports. The Fe/γ-Al2O3 catalyst has the highest performance in the low-temperature activity of methane oxidation which started at 623 K and completed at 923 K. When the Fe-content in Fe/γ-Al2O3 was increased, the formation of goethite was observed by the X-ray analyses and the activity of this catalyst increased up to 6 mol%. After the catalytic methane oxidation at 823 K, it was observed that goethite in Fe/γ-Al2O3 transformed to hematite which has been known as an active iron oxide in methane oxidation. The activity of Fe/γ-Al2O3 was enhanced by the addition of sodium up to the Na-content of 5 mol% although it descended above the content due to the decrease of the specific surface area of the catalyst. (Keyword) Iron oxide catalyst / Goethite / Hematite catalyst / Alumina support / Methane oxidation / Combustion catalyst (Link to Publication Site) ● Publication site (DOI): 10.1627/jpi.48.223 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390282680167790848 ● Search Scopus @ Elsevier (DOI): 10.1627/jpi.48.223 (DOI: 10.1627/jpi.48.223, CiNii: 1390282680167790848)
55.	松浦良彦, 三澤顕悟, Yoshiyuki Kidoguchi and Kei Miwa : Zクランク機構をもつ等容燃焼型エンジンの開発, 設計工学, Vol.40, No.6, 304-310, 2005. (Keyword) internal combustion engine / mechanism / Z-crankshaft / design / constant volume combustion (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1520853832360348928 (CiNii: 1520853832360348928)
56.	Yoshiyuki Kidoguchi, 佐藤正明, 馬野博光 and Kei Miwa : 天然ガス噴流の着火促進と燃焼安定化に関する基礎研究, Transactions of the Society of Automotive Engineers of Japan, Vol.36, No.1, 15-20, 2005. (Keyword) Gaseous Fuel / Diffusion Combustion / CNG,Direct Injection / Spark Ignition (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1520853833814125312 (CiNii: 1520853833814125312)
57.	Sung-Sub Kee, Ali Mohammadi, Yoshiyuki Kidoguchi and Kei Miwa : Effects of Aromatic Hydrocarbons on Fuel Decomposition and Oxidation Processes in Diesel Combustion, Transactions of The Society of Automotive Engineers, No.2005-01-2086, 1-8, 2005. (Link to Publication Site) ● Publication site (DOI): 10.4271/2005-01-2086 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.4271/2005-01-2086 (DOI: 10.4271/2005-01-2086)
58.	Yoshiyuki Kidoguchi, Daishi Ikeda, Koji Kamoto, Ali Mohammadi and Kei Miwa : Control of Rapid Combustion of Hydrogen Jet Ignited by Spark Plug, Transactions of The Japan Society of Mechanical Engineers, Series B, Vol.70, No.699, 242-247, 2004. (Summary) This study tried to control rapid combustion of hydrogen fuel. Experiment was carried out using constant volume chamber. Hydrogen was injected in this chamber using gas injector and the jet was ignited by a spark plug. High-speed schlieren photography method using high-speed digital video camera was employed to observe combustion process of hydrogen jet. Combustion process was analyzed by the photographs and pressure history. It has been shown by the results that igniting hydrogen spray can control rapid combustion. The spark plug should be located in the boundary of the spray near the outlet of injector in order to reduce initial pressure rise of hydrogen combustion. This kind of injector location also improves combustion efficiency, because combustion continues mainly in the internal of the chamber leading to the reduction of quenching on the wall. Early ignition during injection further reduces initial rapid pressure rise of hydrogen jet. (Keyword) Gasous fuel / Combustion / Hydrogen / Spark ignition (Link to Publication Site) ● Publication site (DOI): 10.1299/kikaib.70.2922 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1520853833102837888 ● Summary page in Scopus @ Elsevier: 2-s2.0-12744267908 (DOI: 10.1299/kikaib.70.2922, CiNii: 1520853833102837888, Elsevier: Scopus)
59.	Yoshiyuki Kidoguchi, Hirofumi Noge and Kei Miwa : deNOx Mechanizm Caused by Thermal Cracking Hydrocarbons in Stratified Rich Zone during Diesel Combustion, COMODIA 2004, Vol.6, No.2004, 73-80, 2004. (Summary) This study investigated deNO_X mechanism caused by thermal cracking hydrocarbons during diesel combustion experimentally and theoretically. Experiment using a rapid compression machine and a total gas-sampling device shows that NO_X can be reduced during second half of diffusion combustion under rich and high swirl condition. Under this condition, stratified rich region is distributed in the combustion chamber. Thermal cracking hydrocarbons are locally accumulated in this region. Moreover, it is shown that a large amount of thermal cracking hydrocarbons are produced during ignition delay period and at initial combustion stage. These hydrocarbons mainly consist of unsaturated hydrocarbon such as C_2H_4. At diffusion combustion stage, CH_4 becomes main hydrocarbon. A flow reactor system was used to investigate thermal cracking process of diesel fuel and NO_X reduction process. It is found that about 60% NO_X can be reduced under rich and high temperature condition. The condition is at equivalence ratio of over 2.5 and temperature of 1500K in this study. When C_2H_4 is introduced as fuel, NO_X can be further reduced up to 80%. It is indicated that C_2H_4 plays an important role in NO_X reduction. Chemical kinetic calculation using CHEMKINHI reveals the deNO_X mechanism. C_2H_4 is easily decomposed as compared with CH_4. During the oxidation process of C_2H_4, NO_X is reduced through the reaction of HCCO or CH_2 with NO. In this reaction path C_2H_2 is an essential species to form HCCO and CH_2. C_2H_2 is one of thermal cracking hydrocarbons and also formed through thermal cracking process of C_2H_4. (Keyword) Diesel Combustion / NOx / Thermal Cracking (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390001205883465600 (CiNii: 1390001205883465600)
60.	Sung-Sub Kee, Ali Mohammadi, Hiroyuki Hirano, Yoshiyuki Kidoguchi and Kei Miwa : Effects of Water-emulsified Fuels on Diesel Combustion Process and NOx Reduction, Transactions of The Japan Society of Mechanical Engineers, Series B, Vol.70, No.689, 272-278, 2004. (Summary) ディーゼル噴霧の着火，燃焼過程とNOx生成過程に及ぼす水エマルジョン燃料の影響を明らかにするため，急速圧縮装置に全量ガスサンプリング法を適用し，着火遅れや熱発生率などの燃焼特性，燃焼過程中のNOx濃度履歴を調べた．その結果，水エマルジョン燃料では，NOx生成が早期に終了してNOx排出が少なくなるが，低温では着火遅れが長くなって初期燃焼が大きくなり，NOx低減効果が小さくなることなどを示した． (Keyword) Diesel Combustion / Fuel / NOx (Link to Publication Site) ● Publication site (DOI): 10.1299/kikaib.70.272 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390282681238924800 ● Summary page in Scopus @ Elsevier: 2-s2.0-1842683946 (DOI: 10.1299/kikaib.70.272, CiNii: 1390282681238924800, Elsevier: Scopus)
61.	Ali Mohammadi, Yoshinari Kaneda, Takashi Sogo, Yoshiyuki Kidoguchi and Kei Miwa : A Study on Conversion of NO into NO₂ using a High-frequency Dielectric Barrier Discharge Plasma for Diesel Exhaust After-treatment, Transactions of the Society of Automotive Engineers of Japan, Vol.35, No.1, 97-102, 2004. (Summary) 高周波バリア放電を用いたディーゼル排気後処理装置を開発した．この装置は，排気中のNOをバリア放電により生成したオゾン，活性酸素などによってNO2に転換して，このNO2により微粒子を低温で燃焼させる．本論文では，プラズマ反応装置を試作して，NO2転換特性を調べた．その結果，電極構造の最適条件が求まり，ガス温度，水や炭化水素などの共存ガスが転換効率に及ぼす影響が明らかになった． (Keyword) Diesel engine / Emmision / Plasma (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1520009407689575424 (CiNii: 1520009407689575424)
62.	Goda Eiji, Yoshiyuki Kidoguchi, Nitta Masatoshi and Kei Miwa : An Appraisal of High-Pressure Injection and High-Squish Combustion Chamber for Reduction of Diesel Particulate, Transactions of the Society of Automotive Engineers of Japan, Vol.34, No.3, 49-54, 2003. (Summary) 直接噴射式ディーゼル機関の排気低減に有効な高スキッシュ燃焼室に高圧噴射を適用して微粒子の低減を図った．その結果，高スキッシュ燃焼室は高圧噴射においても微粒子低減に有効で，標準燃焼室より引くい噴射圧力でNOxと微粒子の低減が実現できることを示した．また，高スキッシュ燃焼室では，噴射時期遅延にともない初期熱発生率が低下し，急速燃焼により主燃焼期間の熱発生率が大きくなる特徴を持つことがわかった． (Keyword) Diesel Engine / Combustion / Emission / Particulate / Combustion Chamber / Fuel Injection (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1520290884103349632 (CiNii: 1520290884103349632)
63.	Ali Mohammadi, Yoshinori Kaneda, Takashi Sogo, Yoshiyuki Kidoguchi and Kei Miwa : A Study on Diesel Emission Reduction using a High-frequency Dielectric Barrier Discharge Plasma, SAE Paper, No.2003-01-1879, 1-8, 2003. (Summary) 高周波バリア放電を用いたディーゼル排気後処理装置を開発した．NO2に転換特性では，ガス温度，水や炭化水素などの共存ガスの影響を調べた．とくに，炭化水素によりガス温度，水分による転換効率の悪化を抑制することができることがわかった．すす酸化特性では，NO2によって，酸素の場合より約100℃低い260℃の温度ですすを燃焼させることができ，本システムでディーゼル微粒子の低温酸化が可能であることを示した．
64.	Sung-Sub Kee, Ali Mohammadi, Hiroyuki Hirano, Yoshiyuki Kidoguchi and Kei Miwa : Experimental Study on Combustion Characteristics and Emission Reduction of Emulsified Fuels in Diesel Combustion Using a Rapid Compression Machine, SAE Paper, No.2003-01-1792, 1-8, 2003. (Summary) 水エマルジョン燃料噴霧の着火，燃焼過程とNOx，すす生成過程について，急速圧縮装置に全量ガスサンプリング法，透過光減衰法を適用して調べた．その結果，水エマルジョン燃料噴霧は，直径80μmの液滴中に直径2μm程度の水粒子を含んでいること，拡散燃料が活発になって燃焼期間が短くなること，NOx排出が少なくなること，初期燃焼にすす生成が多くなるが，拡散燃焼における低減率が大きいことがわかった．
65.	Yoshiyuki Kidoguchi, Michiko Sanda and Kei Miwa : Experimental and Theoretical Optimization of Combustion Chamber and Fuel Distribution for the Low Emission Direct-Injection Diesel Engine, Journal of Engineering for Gas Turbines and Power, Vol.125, No.1, 351-357, 2003. (Summary) 直接噴射式ディーゼル機関において，高スキッシュ燃焼室により排気が低減する実験結果をCFD計算により解析した．その結果，高スキッシュ燃焼室では強い乱れが燃焼後半まで持続することが微粒子低減に寄与することを示した．さらに，燃焼室内の混合気分布を変化させて燃焼経過を予測した．その結果，高スキッシュ燃焼室では，高スワールにした場合にNOxの生成を抑えて微粒子が低減できることを示唆した． (Link to Publication Site) ● Publication site (DOI): 10.1115/1.1501077 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.1115/1.1501077 (DOI: 10.1115/1.1501077)
66.	Nakami Nakami, Kei Miwa, Yoshiyuki Kidoguchi and Ali Mohammadi : Effects of Fuel Properties on Degradation of Diesel Fuel Using a Flow Reactor, Transactions of the Society of Automotive Engineers of Japan, Vol.33, No.4, 57-62, 2002. (Summary) ディーゼル燃料の着火遅れ期間において燃料性状が燃料の化学的過程に及ぼす影響を調べたるため，ディーゼル燃料である軽油に近い性状をもち，セタン価と芳香族成分，蒸留特性を単独に変更させた燃料を用いて，流通反応装置による実験を行った．その結果，燃料中の芳香族成分は高温でも熱分解しにくく，また，脂肪族成分の熱分解も妨げることがわかった．また，セタン価が高くなると，高温で低級化が急速に進むことがわかった． (Keyword) Combustion / Fuel / Flow Reactor / Diesel Fuel / Pyrolysis / Fuel Properties / HC (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1520009408518314752 (CiNii: 1520009408518314752)
67.	Ali Mohammadi, Yoshiyuki Kidoguchi, Ryoichi Kitaoka and Kei Miwa : Droplet Behavior and Air Entrainment into High-Pressure Diesel Sprays Affected by Injection Parameters and Wall-Impingement, Transactions of the Society of Automotive Engineers of Japan, Vol.33, No.4, 109-114, 2002. (Summary) 小型ディーゼル機関の壁面衝突ディーゼル噴霧について，噴霧の微粒化過程と空気導入過程に及ぼす噴射圧力，噴口径および衝突距離の影響を明らかにするため，ナノ秒ダブル発光撮影法とレーザーシート法を用いて解析した．その結果，噴射圧力を高めると，壁面上で発達する噴霧先端部から大きい速度を持つ液滴が数多く生成され，壁面上の噴霧内へ導入される空気導入量は，自由噴霧領域に比べて増大すること，また，壁面衝突距離が短くなると，壁面噴霧部での空気導入が支配的になり，導入量が増加することを定量的に明らかにした．このことから，小型ディーゼル機関では，壁面衝突部の気体導入過程が混合気形成過程にとって重要であることがわかった． (Keyword) Diesel engine / Fuel injection / Spray / Spray-wall impingement / Injection pressure / Air entrainment / Droplet (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1520290882371477504 (CiNii: 1520290882371477504)
68.	Kei Miwa, Yoshiyuki Kidoguchi and Ali Mohammadi : A Study on a New Combustion Cycle with the New Internal Combustion Engine Employing Rhombic Link Z-Crank Mechanism, Transactions of the Society of Automotive Engineers of Japan, Vol.33, No.2, 19-24, 2002. (Summary) 従来のピストン·クランク機構と異なる菱形リンクZクランク機構をもつ内燃機関を試作し，単発燃焼運転を行ったときのシリンダ内圧力経過から，このサイクルによって実現される燃料サイクルの特徴を調べた．その結果，Zクランク機関では上死点付近でピストン速度が遅くなるため等容型燃焼サイクルが実現できることを示した．また，Zクランク機関は，点火時期を遅らせた場合に有効であることを明らかにした． (Keyword) Internal Combustion Engine / Crankshaft, Mechanism / Combustion / Thermal Efficiency / Combustion Cycle ( !2) / Combustion Cycle (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1520009408153680000 (CiNii: 1520009408153680000)
69.	Ali Mohammadi, Yoshiyuki Kidoguchi and Kei Miwa : Effect of Injection Parameters and Wall-Impingement on Atomization and Gas Entrainment Processes in Diesel Sprays, SAE Technical Papers, No.2002-01-0497, 1-10, 2002. (Summary) 小型ディーゼル機関では，高圧で噴射された燃料が燃焼室壁面に衝突することが避けられず，これが機関性能ばかりでなく，未燃炭化水素や微粒子中のSOFの排出に大きく影響する．そのため，高圧噴霧の壁面での挙動を知ることが重要である．本研究では，ダブルナノ秒拡大影撮影法を用いて，個々の液滴の二重露光撮影を行い，画像処理によって液滴の瞬間速度の時間·空間分布と，壁面衝突噴霧への気体導入に及ぼす噴射系の影響をレーザシート法により解析した．その結果，噴霧の壁面衝突によって壁面上を発達する噴霧先端部で多数の液滴が生成され，噴霧先端部の大きな液滴は，大きな速度を持って放射状に噴霧外側に飛行するが，噴霧軸付近では，液滴速度が減少して，壁面衝突部で周囲空気とともに取り込まれることを明らかにした． (Link to Publication Site) ● Publication site (DOI): 10.4271/2002-01-0497 (Link to Search Site for Scientific Articles) ● Search Scopus @ Elsevier (DOI): 10.4271/2002-01-0497 (DOI: 10.4271/2002-01-0497)
70.	Kei Miwa, Ali Mohammadi and Yoshiyuki Kidoguchi : A Study on Thermal Decomposition of Fuels and NOx Formation in Diesel Combustion using a Total Gas-sampling Technique, International Journal of ENGINE RESEARCH, Vol.2, No.3, 189-198, 2001. (Summary) ディーゼル燃焼過程の着火遅れ期間における燃料の化学的挙動は，着火や燃焼ばかりでなく有害成分の生成過程を支配する．しかし，ディーゼル燃焼場での燃料の低級化過程に及ぼす燃料性状の影響は，未だ十分に理解されていない．本研究では，軽油性状の主要因子である芳香族成分および蒸留温度が，燃料の熱分解過程と着火，燃焼過程に及ぼす影響を，急速圧縮装置と全量サンプリング法を用いて調べた．その結果，セタン価が同じ場合でも，芳香族成分が含まれると燃料の熱分解過程が緩慢になり，着火遅れが長くなるが燃焼経過には差がみられないこと，また，最終蒸留温度が高くなると，着火遅れ，全燃焼期間とも伸張することを明らかにした．
71.	Yoshiyuki Kidoguchi, Kei Miwa and Ali Mohammadi : Reduction Mechanism of NOx in Rich and High Turbulence Diesel Combustion, 5th COMODIA Symposium, Vol.5, No.1, 108-114, 2001. (Summary) 急速圧縮装置を用いてディーゼル燃焼を模擬し，全量ガスサンプリング法により燃焼中の任意時間にけるNOx濃度を測定した．その結果，強い旋回流をともなう過濃燃焼では，燃焼後半に燃焼室内のNOx濃度が低減しNOxが還元されることを示した．火炎観察とCFD計算により燃焼形態を解析した結果，燃焼室内にリング状に火炎が形成されここに燃料が投入されてNOx還元機構が作用することを示唆した．
72.	中美智子, 池田明夫, Kei Miwa, Yoshiyuki Kidoguchi and Ali Mohammadi : 流動反応装置によるディーゼル燃料の熱分解と酸化過程に関する研究, NENSHO KENKYU, Vol.2001, No.126, 39-50, 2001. (Summary) ディーゼル噴霧の着火遅れ期間における燃料の化学的挙動を明らかにするため，流動反応装置を試作し，この装置を用いて得られた燃料の熱分解組成を調べて本装置の有効性を検討した．さらに，直鎖飽和炭化水素燃料と芳香族含有燃料の熱分解過程と酸化過程に及ぼす雰囲気温度の影響を調べ，熱分解は1000K付近から始まり1500Kでは燃料はほとんど低級化すること，芳香族成分が熱分解を妨げることなどを示した．
73.	Ali Mohammadi, Kei Miwa and Yoshiyuki Kidoguchi : Effects of Injection Pressure and Fuel Properties on NOx Formation during Diesel Combustion, Transactions of the Society of Automotive Engineers of Japan, Vol.32, No.4, 23-28, 2001. (Summary) ディーゼル機関から排出されるNOx生成に及ぼす燃料性状の影響を明らかにするため，ディーゼル燃焼過程における燃料の組成や分子構造などの化学的因子の影響について，急速圧縮装置と全量サンプリング法を用いて燃焼過程中の混合気組成とNOx濃度の時間履歴を，噴射圧力を変更して解析した．その結果，初期燃焼の規模は，着火遅れ期間中に準備される熱分解低沸点炭化水素の量に支配され，噴射圧力が高くなると，低沸点炭化水素成分が増加し，初期熱発生率が高くなりNO濃度が増加する．また，芳香族成分が含まれると，熱分解による燃料の低級化が遅れて，燃焼中に高沸点炭化水素が長く残って，NOの生成が拡散燃焼後期まで持続し，最終NO濃度が高くなることを明らかにした． (Keyword) Diesel combustion / NOx (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1520572358488210432 (CiNii: 1520572358488210432)
74.	Yoshiyuki Kidoguchi, Changlin Yang, Ryoji Kato and Kei Miwa : Effects of Fuel cetane number and aromatics on combustion process and emissions of a direct-injection diesel engine, JSAE Review, Vol.21, No.4, 469-475, 2000. (Summary) 軽油に含まれる芳香族の含有率，セタン価が直接噴射式ディーゼル機関の燃焼と排気特性に及ぼす影響について調べた．その結果，芳香族含有率の増加は燃焼特性にほとんど影響を及ぼさないが，排気微粒子およびNOxを増加させること，セタン価は着火遅れおよび燃焼過程に影響を及ぼし，これにより排気特性が影響を受けることを示した．さらに，高圧噴射は燃料性状が微粒子生成に及ぼす影響を小さくすることを明らかにした．
75.	Changlin Yang, Yoshiyuki Kidoguchi, Ryoji Kato and Kei Miwa : Effects of Fuel Properties on Combustion and Emissions of a Direct-Injection Diesel Engine, Bulletin of MESJ, Vol.28, No.2, 55-62, 2000. (Summary) 直接噴射式ディーゼル機関において，燃料である軽油の芳香族含有率，セタン価を独立に変化させ，機関の運転条件を変更して性能試験を行い，燃料性状が排気特性に及ぼす影響を調べた．その結果，芳香族成分が増えると，微粒子およびNOxが増加すること，低セタン価燃料は高負荷で微粒子が低減するがNOが増加すること，芳香族含有率が高い低セタン価燃料は，低負荷でTHCおよびSOFが極端に増加することなどを示した．
76.	Yoshiyuki Kidoguchi, Changlin Yang and Kei Miwa : Effects of Fuel Properties on Combustion and Emission Characteristics of a Direct-Injection Diesel Engine, SAE Paper, Vol.2000, No.01-1851, 1-9, 2000. (Summary) 燃料性状が直接噴射式ディーゼル機関の排気に及ぼす影響について，燃料性状と排気特性との相関に注目して調べた．はじめに，相互に影響しあう燃料性状として，密度，粘度，蒸留温度，セタン価，芳香族含有率の相関を示し，次いでエンジン負荷を変更してセタン価と芳香族含有率が排気性能に及ぼす影響を示した．さらに，排気測定結果からこれら2つの燃料性状とNOxおよび微粒子排出量との相関式を求めた．
77.	Changlin Yang, Yoshiyuki Kidoguchi, Ryoji Kato and Kei Miwa : Effects of Fuel Properties on Combustion and Emissions of a Drect-Injection Diesel Engine, Journal of The Marine Engineering Society in Japan, Vol.34, No.12, 798-806, 1999. (Summary) 直接噴射式ディーゼル機関において，燃料である軽油の芳香族含有率，セタン価を独立に変化させ，実機試験により，燃料性状が燃焼と排気特性に及ぼす影響について調べた．その結果，芳香族成分が増えると，燃焼特性は変化しないが微粒子およびNOxが増加すること，セタン価の低下は着火遅れを長くしNOを増加させること示した．さらに，高圧噴射は燃料性状が微粒子生成に及ぼす影響が小さくなることを明らかにした．
78.	Changlin Yang, Yoshiyuki Kidoguchi, Ryoji Kato and Kei Miwa : Effects of Fuel Properties on Combustion and Emissions of a Direct-Injection Diesel Engine, Journal of The Marine Engineering Society in Japan, Vol.32, No.12, 798-806, 1999.
79.	Masahiro Shioji, Hiroshi Kawanabe, Kenichi Sakakoshi, Yoshiyuki Kidoguchi and Makoto Ikegami : CFD Simulation of Combustion and NO Formation in aSpark-Ignition Engine, Transactions of The Japan Society of Mechanical Engineers, Series B, Vol.65, No.639, 3825-3830, 1999. (Summary) CFDコードに火炎モデルを組込み，火花点火機関の燃焼過程を予測した．計算格子内の燃焼の進行を考慮して温度を見積ってNOの生成予測を行い，シリンダ内の局所熱発生率，温度，NO生成速度およびNO濃度の空間分布を明らかにした．とくに，燃焼初期の攪拌は希薄燃焼時のNO低減に有効であり，燃焼室凹み縁で点火すると，ガス流動による混合が進行し，個々の混合気要素の温度履歴が大きく変動することなどを示した
80.	Changlin Yang, Yoshiyuki Kidoguchi and Kei Miwa : 直接噴射式ディーゼル機関における排気特性と火炎挙動に及ぼす過濃高乱流燃焼の影響, Transactions of The Japan Society of Mechanical Engineers, Series B, Vol.65, No.637, 3203-3208, 1999. (Summary) 直接噴射式ディーゼル機関のNOxと微粒子の同時低減を実現するため，小口径高スキッシュ燃焼室を用いた．そして，実機関でスキッシュが排気特性と燃焼特性に及ぼす影響を調べ，エンドスコープと高速度ビデオカメラを用いて実働下におけるシリンダ内の燃焼形態を調べた．その結果，小口径燃焼室では，主燃焼期に火炎が凹み内外周部で強旋回し，隙間部への流出が抑制されて凹み内で最後まで均一な燃焼が持続することが観察された．
81.	Yoshiyuki Kidoguchi, Changlin Yang and Kei Miwa : Analysis of High Turbulence Combustion in a Direct-Injection Diesel Engine with High Squish Combustion Chamber, Transactions of The Japan Society of Mechanical Engineers, Series B, Vol.65, No.636, 2921-2928, 1999. (Summary) 直接噴射式ディーゼル機関において，燃焼改善を図るために燃焼室入口口径を小さくして押込み渦流を強くする高スキッシュ燃焼室における燃焼形態を調べた．研究は，CFD計算により，燃焼室内のガス流動，混合気形成，温度分布を予測することにより行った．その結果．高スキッシュ燃焼室では複雑なガス流動が発生して混合が促進され，燃料が燃焼室内に長く留まって燃焼室内で燃焼が進行することを明らかにした．
82.	Yoshiyuki Kidoguchi, Changlin Yang and Kei Miwa : Effect of High Squish Combustion Chamber on Simultaneous Reduction of NOx and Particulate from a Direct-Injection Diesel Engine, SAE, Vol.1999, No.1999-01-1502, 1-11, 1999. (Summary) 直接噴射式ディーゼル機関において，副室方式ピストンにより，燃焼初期に過濃燃焼によりNOxを低減し，燃焼後期に高乱流燃焼により微粒子の低減を図る二段燃焼を試みた．はじめに，実機関における実験で，二段燃焼によるNOxと微粒子の同時低減の可能性を示した．次に，CFD計算ならびに高速度撮影による火炎観察により実験結果を解析し，副室方式の燃焼室内における火炎の挙動を調べ，燃焼室形状の効果を明らかにした．
83.	Changlin Yang, Yoshiyuki Kidoguchi and Kei Miwa : Effect of Rich and High Turbulence Combustion on NOx and Particulate Emissions from a High Speed Direct-Injection Diesel Engine, COMODIA98, Vol.4, 63-68, 1998. (Summary) 直接噴射式ディーゼル機関において過濃高乱流燃焼がNOxと微粒子の低減に及ぼす効果を実機関による実験により調べた．実験では，標準燃焼室に対，燃焼室入口口径を小さくし，性能および排気計測を行った．その結果，ピストン直径に対する入口口径比が40%以下になると，噴射時期遅延時にNOxだけでなく微粒子も低減できることを示し，燃焼室容積を小さくして過濃燃焼場を形成するとNOx排出量も低減することを示した．
84.	Yoshiyuki Kidoguchi and Dent C. J. : Generation of Hydrocarbon Emissions from Direct-Injection Diesel Engines, Transactions of The Japan Society of Mechanical Engineers, Series B, Vol.63, No.615, 3791-3797, 1997. (Summary) CFDコードKIVA-Ⅱに燃料の自着火反応モデルを組込んでディーゼル燃焼過程を計算し，ディーゼル機関における燃焼と排出未燃燃料の関連を調べた．その結果，エンジンシリンダ内に高旋回流がある場合，壁面への熱損失の増大と過剰混合により燃焼後半にバルククエンチングが起こり，排出未燃燃料が増加することを示した．さらに，リエントラント燃焼室は排出未燃燃料に対し，燃料噴射時期遅延時に有利であることを示した．
85.	Makoto Ikegami, Yoshiyuki Kidoguchi and Jyunnichi Ishiguro : Three-Dimensional Simulation of the Diesel Combustion Process, Transactions of The Japan Society of Mechanical Engineers, Series B, Vol.53, No.491, 2241-2250, 1987. (Summary) ディーゼルエンジンシリンダ内の燃焼シミュレーションを行った．計算は数値流体力学の手法によるガス流動シミュレーションコードに，燃料と酸素の渦崩壊および予混合気形成の考えに基づく燃焼モデルとガス噴流を仮定した噴霧モデルを組み込んだ．この結果，エンジンの運転条件を変えた場合のシリンダ内の混合気形成と燃焼にともなうガス流動が予測でき，従来の高速度写真や熱発生経過の測定などの実験結果を裏付けることができた．
86.	Makoto Ikegami, Yoshiyuki Kidoguchi and Kazuie Nishiwaki : A Multidimensional Model Prediction of Heat Transfer in Non-Fired Engines, SAE Paper, 1-16, 1986. (Summary) エンジンシリンダ内の熱伝達過程を数値予測した．その結果，熱流束の予測値は実測値と一致することを示し，エンジンシリンダ内の非定常熱伝達においては，ピストンの運動にともなう圧縮膨張の影響で温度境界層の厚みが変化して熱流束が変化することを明らかにした．また，本手法によりシリンダ内のガス流動や温度分布から熱流束を検討することができ，エンジンシリンダ内の熱流束の予測が可能であることを示した．

Review, Commentary:

1.	Yoshiyuki Kidoguchi : CFDのディーゼル機関シミュレーションの開発と適用の現状, Engine Technology, No.22, 13-29, Sep. 2002. (Summary) CFDシミュレーションをディーゼル機関の燃焼予測に用いるのに必要となる噴霧，着火，燃焼，排気予測の各サブモデルについて，広く用いられているモデルを紹介し，これらのサブモデルを組み込んでCFD計算を行っている実例として，燃焼室形状がガス流動や燃料分布に及ぼす影響を調べたもの，機関条件変更による排気性能予測結果などを示した．また，サブモデルの問題点，今後のプログラム開発に必要な事項についても言及した．
2.	Kei Miwa and Yoshiyuki Kidoguchi : Simultaneous Reduction of NOx and Particulate Emissions from DI Diesel Engine on a Concept of Homogeneous Rich and High Turbulent Combustion, Journal of Society of Automotive Engineers of Japan, Vol.55, No.9, 29-34, Sep. 2001. (Summary) 小型直接噴射式ディーゼル機関においてNOxと微粒子の同時低減を図るため，均一過濃高乱流燃焼により，燃焼初期に過濃な燃焼場を形成して熱分解炭化水素による還元反応を利用してNOの生成を抑制し，燃焼後期に強い空気流動を利用して急速燃焼による微粒子低減を試みた．この燃焼を実現するため，リエントラント燃焼室よりもさらに燃焼室入口口径を絞った高スキッシュ燃焼室ピストンを採用して，燃焼特性と排気特性を解析した．
3.	Yoshiyuki Kidoguchi : 数値流体力学的手法による内燃機関内の燃焼および熱伝達に関する研究, ENGINE TECHNOLOGY, No.13, 40-47, Mar. 2001. (Summary) 数値流体力学の手法によるCFD計算に燃焼モデルを取り入れて，往復式内燃機関の燃焼シミュレーションを確立した．これを用いてエンジンシリンダ内の燃焼過程を計算した結果，ガス流動や乱れが燃料と空気との混合過程，燃焼，熱伝達，排気汚染物質の生成に及ぼす影響を明らかにすることができ．本計算モデルが実際の現象や諸因子の影響を表現でき，今後，シリンダ内諸現象解明に役立つことを示唆した．

Proceeding of International Conference:

1.	Kodai Nakayoshi, Yoshiyuki Kidoguchi and Yuzuru Nada : Total Gas Sampling Method to Measure Time-history of Convcentrations of Combustion Gas Component during Diesel Combustion, 2"d International Symposium on';Advanced Measurement, Analysis and Control foEnergy and Environment, 128-130, Xi'an, Dec. 2019.
2.	Yoshiyuki Kidoguchi and Yuzuru Nada : Measurement of Combustion and Emission Characteristics of Water-emulsified Biomass Fuel made with Fuel-water Rapid Internally Mixing Injector, 2"d International Symposium on';Advanced Measurement, Analysis and Control foEnergy and Environment, 30-33, Dec. 2019.
3.	Yuzuru Nada, Yoshiyuki Kidoguchi, Yuto Yamashita, Ryo Furukawa, Ryu Kaya, Hideaki Nakano and Shinichi Kobayashi : Effects of Sub-Chamber Configuration on Heat Release Rate in a Constant Volume Chamber simulating Lean-burn Natural Gas Engines, Small Engine Technology Conference 2019 (SETC2019), Hiroshima, Nov. 2019.
4.	rui kikui, Yoshiyuki Kidoguchi and Yuzuru Nada : Effect of Fuel Injection Rate Control on Diesel Combustion and Histories of Combustion Gas Component Concentrations, Small Engine Technology Conference 2019 (SETC2019), Poster session, No.22, Hiroshima, Nov. 2019.
5.	Arshad Shahroni Mohd Aizam, Yuzuru Nada, Yoshiyuki Kidoguchi, Yuya Hosokawa and Yoshiki Ota : Atomization and combustion characteristics of a fuel-water rapid internal mixing injector, 12th Asia-Pacific Conference on Combustion, USB memory (1276), Fukuoka, Jul. 2019. (Link to Publication Site) ● Publication site (DOI): 10.31224/osf.io/te5jx (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-85083950539 (DOI: 10.31224/osf.io/te5jx, Elsevier: Scopus)
6.	Yu Higaki, Yuzuru Nada and Yoshiyuki Kidoguchi : Numerical Simulations for Turbulent Diffusion Flames by Assumed PDF Method using Multivariate Beta Function, 12th Asia-Pacific Conference on Combustion, USBmemory(1058), Fukuoka, Jul. 2019. (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-85083952397 (Elsevier: Scopus)
7.	Yuzuru Nada, So Morimoto, Yoshiyuki Kidoguchi, Ryu Kaya, Hideaki Nakano and Shinichi Kobayashi : Numerical Simulations of Mixture Formation in Combustion Chambers of Lean-Burn Natural Gas Engines Incorporating a Sub-Chamber, The SAE 2017 International Powertrains, Fuels and Lubricants Meeting, Beijing, Oct. 2017. (Link to Publication Site) ● Publication site (DOI): 10.4271/2017-01-2280 (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-85034436051 (DOI: 10.4271/2017-01-2280, Elsevier: Scopus)
8.	Hideaki Nakano, Ryu Kaya, Shinichi Kobayashi, Yuzuru Nada and Yoshiyuki Kidoguchi : A Study on the Influence of the Strength of Ejected Jet on Combustion in a Natural Gas Lean Burn Engine with a Sub-chamber with Direct Injector Inside, The Ninth International Conference on Modeling and Diagnostics for Advanced, Engine Systems (COMODIA 2017), USB memory, C301, Okayama, Jul. 2017. (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-85088410272 (Elsevier: Scopus)
9.	Yuya Noda, Koki Shimizu, Yuzuru Nada, Yoshiyuki Kidoguchi, Keiya Nishida, Pengbo Dong and Youichi Ogata : Study of Diesel Spray Development from Mixture Formation and Evaporation to Initial Flame Development, The Ninth International Conference on Modeling and Diagnostics for Advanced, Engine Systems (COMODIA 2017), No.B101, Okayama, Jul. 2017. (Link to Search Site for Scientific Articles) ● Summary page in Scopus @ Elsevier: 2-s2.0-85088774200 (Elsevier: Scopus)
10.	Yuzuru Nada, Daisuke Asao, Shin-ichiro Yoshimura and Yoshiyuki Kidoguchi : Atomization and Emulsification Characteristics of Soybean Oil Discharged from Fuel-Water Internally Rapid Mixing Injector, Proceedings of the First Pacific Rim Thermal Engineering Conference, PRTEC-14860, Hawaii, Mar. 2016.
11.	Yuzuru Nada, Yoshiyuki Kidoguchi, Shinichiro Yoshimura, Katsuki Onoda, Daisuke Asao and Aizam Mohd Shahroni Arshad : Spray Characteristics of a Fuel-water Internally Rapid Mixing Injector for Burner Combustion, The 13th international Conference on Liquid Atomization and Spray Systems (ICLASS 2015), Vol.E3-1-053, tainan, Aug. 2015.
12.	Yuzuru Nada, Y. Komatsubara, T. Pham, F. Yoshii and Yoshiyuki Kidoguchi : Evaluation of NOx Production Rate in Diesel Combustion Based on Measurement of Time Histories of NOx Concentrations and Flame Temperature, Small Engine Technology Conference 2014 (SETC2014), PISA, Nov. 2014.
13.	Mohd Mohd Al-Hafiz Nawi, Yoshiyuki Kidoguchi, M. Nakagiri, N. Uwa, Yuzuru Nada and S. Miyashiro : Macro- and Micro-scale Observation on Dynamic Behavior of Diesel Spray Affected by Ambient Density and Temperature, Small Engine Technology Conference 2014 (SETC2014), PISA, Nov. 2014.
14.	Yoshiyuki Kidoguchi, Tomoaki Yatsufusa and Daisuke Nakagawa : Improvement of Emissions and Birning Limits in Burner Combustion using an Injector on the Concept of Fuel-water Internally Rapid Mixing, Proceedings of 5th European Combustion Meeting, Jun. 2011.
15.	Khalid Amir, Tomoaki Yatsufusa, Miyamoto Takayuki, Kawakami Jun and Yoshiyuki Kidoguchi : Analysis of Relation between Mixture Formation during Ignition Delay Period and Burning Process in Diesel Combustion, SETC 2009, ペナン (マレーシア), Nov. 2009.
16.	Adam Abdullah, Tomoaki Yatsufusa, Gomi Tomonori, Irie Nobuyuki and Yoshiyuki Kidoguchi : Analysis of Droplets Evaporation Process of Diesel Spray at Ignition Delay Period using Dual Nano-spark Shadowgraph Photography Method, SETC 2009, ペナン (マレーシア), Nov. 2009.
17.	Tomoaki Yatsufusa, Yoshiyuki Kidoguchi, Kumura Tatsuya and Nakagawa Yoshiki : Advantage of Using Water-Emulsified Fuel on Combustion and Emission Characteristics, 4th European Combustion Meeting, Wien, Apr. 2009. (Keyword) Water-Emulsified Fuel
18.	Shingo Okamoto, Ryota Shibamoto, Yoshiyuki Kidoguchi and Kei Miwa : Effect of High Turbulence Mixing on Reduction of Exhaust Emissions from a DI Diesel Engine Employing EGR and Pilot Injection, The 18th Internal Combustion Engine Symposium (International) in Jeju (Korea), No.63, 1-6, Cheju, Dec. 2005.
19.	Hirofumi Noge, Yuichi Yoshihara, Yoshiyuki Kidoguchi and Kei Miwa : A Study on Formation of Soot Precursor in Diffusion Flame Fueling Decomposed Diesel Fuel, 1st Baltic Combustion Meeting, 33-36, Warsaw, Nov. 2005.
20.	Kei-ichiro Murai, Yuichiro Murakami, Tomiko Sei, Masahiro Katoh, Ichiro Nakabayashi, Toshihiro Moriga, Suminori Tanaka, Yoshiyuki Kidoguchi and Kei Miwa : Total Oxidation of Activated Carbon over PdO-CeO₂/TiO₂-Al₂O₃ Catalyst, Advanced Materials Development & Performance Conference 2005, Auckland, Jul. 2005.
21.	Suminori Tanaka, Kohei Tomita, Kazunori Nakagawa, Kei-ichiro Murai, Toshihiro Moriga, Ichiro Nakabayashi, Yoshiyuki Kidoguchi and Kei Miwa : Synthesis and Oxidation Activities of Catalysts Supported Goethite, The 13th International Conference on Processing and Fabrication of Advanced Materials, Singapore, Dec. 2004.
22.	Yoshiyuki Kidoguchi, Kei Miwa and Eiji Goda : Effect of Stratified Rich and High Turbulence Combustion on the Reduction of NOx and Particulate Emissions from a DI Diesel Engine, Proc. of Thermo-and fluid dynamic process in Diesel Engines, 227-235, Valencia, Sep. 2002. (Summary) 直接噴射式ディーゼル機関の排気低減として用いられる高スキッシュ燃焼室の燃焼経過の特徴と排気特性に及ぼす影響を噴射圧力，噴射時期，負荷を変更して調べ，排気性能結果から，高スキッシュ燃焼室と噴射圧力との相乗効果，高スワールによる微粒子低減効果を明らかにした．また，EGRの効果を調べるため，EGRガスの主成分である窒素，二酸化炭素を吸入空気に導入してこれらが排気に及ぼす影響を調べた．
23.	Yoshiyuki Kidoguchi, Michiko Sanda and Kei Miwa : Experimental and Theoretical Optimization of Combustion Chanber and Fuel Distribution for the Low Emission DI Diesel Engine, Proc. of the 2001 Spring Technical Conference of the ASME Internal Combustion Engine Division, Vol.36, No.2, 131-138, Philadelphia, Apr. 2001. (Summary) 直接噴射式ディーゼル機関において，高スキッシュ燃焼室により排気が低減する実験結果をCFD計算により解析した．その結果，高スキッシュ燃焼室では強い乱れが燃焼後半まで持続することが微粒子低減に寄与することを示した．さらに，燃焼室内の混合気分布を変化させて燃焼経過を予測した．その結果，高スキッシュ燃焼室では，高スワールにした場合にNOxの生成を抑えて微粒子が低減できることを示唆した．
24.	Ali Mohammadi, Kei Miwa and Yoshiyuki Kidoguchi : High Time-Space Resolution Analysis of Droplets Behaviour and Gas Entrainment into Diesel Sprays Impinging on a Wall, 16th Annual Conference on Liquid Atomization and Spray Systems, Vol.16, No.16, 51-56, Germany, Sep. 2000. (Summary) 小型直接噴射式ディーゼル機関においては，燃焼室壁面への噴霧衝突は，燃焼と排気特性に直接影響するため，噴霧の壁面での挙動を知ることが重要である．本研究では，壁面衝突噴霧の液滴の挙動と周囲空気の流れを，ナノ秒スパーク光源とレーザーシート法を用いて画像解析して，噴霧内の導入空気量を算出した．その結果，壁面に衝突した噴霧先端部の液滴速度は，15m/s以上で噴霧から飛び出し，この液滴速度は上流部の噴霧液滴速度に比べて非常に大きいことが明らかになった．また，このとき周囲空気は，衝突噴霧の発達によって噴霧上流部に押し出され，噴霧壁面衝突部で取り込まれ，自由噴霧に比べて導入空気量が増加することがわかった．
25.	Ali Mohammadi, Yoshiyuki Kidoguchi, Kei Miwa and Tomoyuki Hirose : Effect of Diesel Spray Impingement on Fuel-Air Mixing Process In Diesel Engines, Proc. of 15th ICE Symposium, Vol.15, No.15, 127-132, Korea, Jul. 1999. (Summary) 小型ディーゼル機関の壁面衝突ディーゼル噴霧について，噴霧の微粒化過程と空気導入過程に及ぼす壁面の影響を明らかにするため，ナノ秒ダブル発光撮影法とレーザーシート法を用いて解析した．その結果，噴射圧力を高めると，壁面上で発達する噴霧先端部から大きい速度を持つ液滴が数多く生成され，壁面上の噴霧内へ導入される空気導入量は，自由噴霧領域に比べて増大すること，また，壁面衝突距離が短くなると，壁面噴霧部での空気導入が支配的になり，導入量が増加することを定量的に明らかにした．

Proceeding of Domestic Conference:

1.	Arashi Yamasaki, OKUMOTO Hiroshi, Yoshiyuki Kidoguchi and Yuzuru Nada : ディーゼル噴霧の噴霧干渉が燃焼に及ぼす影響に関する光学解析, 日本機械学会中国四国支部第62期講演会論文集, 06b3, Mar. 2024.
2.	YUKI Nagura, Yuzuru Nada and Yoshiyuki Kidoguchi : 乱流拡散火炎のLESにおける仮定PDFを用いた乱流燃焼モデルに関する研究, 第61回燃焼シンポジウム講演論文集, P222, Nov. 2023.
3.	TAI Kitashoji, Tomokazu Ohtsuki, HATANO Shota, Yuzuru Nada and Yoshiyuki Kidoguchi : 乱流拡散火炎の浮き上がり高さに対する周囲流速の影響, 第61回燃焼シンポジウム講演論文集,B214, Nov. 2023.
4.	KENTO Toyoshima, Masayoshi Hara, INOUE Gaku, Yuzuru Nada and Yoshiyuki Kidoguchi : 内部急速混合型油水噴霧ノズルから噴霧されたエマルション燃料における水分散相径, 熱工学コンファレンス2023, E214, Oct. 2023.
5.	Yusuke Fujii, Yuzuru Nada, Yoshiyuki Kidoguchi and Ryo Horikawa : 高温空気噴霧燃焼における燃料噴霧の蒸発挙動がNOx排出特性に与える影響の解明, 日本機械学会中国四国支部第61期講演会論文集, Vol.07a3, Mar. 2023.
6.	KAZUKI Nakanishi, SHIMA Karuna, Yuzuru Nada and Yoshiyuki Kidoguchi : 機械学習と仮定PDF法を用いた乱流拡散火炎のRANSシミュレーション, 第60回燃焼シンポジウム講演論文集 A414, Nov. 2022.
7.	Yusaku Okiyoshi, Kohei Ohmori, Arashi Yamasaki, Yuzuru Nada and Yoshiyuki Kidoguchi : 壁面衝突と噴霧干渉をともなうディーゼル噴霧の光学解析に関する研究, 日本機械学会中国四国支部第60期講演会論文集,07c5, Mar. 2022.
8.	Tatsuya Ichikawa, Haruto Miyoshi, Kazuhiro Sakai, Yuzuru Nada and Yoshiyuki Kidoguchi : 副室式ディーゼル機関の燃費および排気の改善に及ぼすパイロット噴射の効果, 日本機械学会中国四国支部第60期講演会論文集,07c3, Mar. 2022.
9.	SHIMA Karuna, Yuki Nagura, Shoichi Miyoshi, Yuzuru Nada and Yoshiyuki Kidoguchi : 仮定PDF法を教師データとする機械学習を用いた乱流拡散火炎のシミュレーション, 第59回燃焼シンポジウム講演論文集,B125, Nov. 2021.
10.	Takashi Hagino, Tai Kitashoji, Yuzuru Nada and Yoshiyuki Kidoguchi : 高温空気噴霧燃焼における炉内燃料噴霧挙動とNOx排出特性の関係, 日本機械学会中国四国支部第59期講演会論文集,08b1, Mar. 2021.
11.	Shoichi Miyoshi, Yuzuru Nada, Yoshiyuki Kidoguchi and 野田進 : 多変数ベータ関数を用いた仮定PDF法による乱流拡散火炎のラージエディシミュレーション, 第34回数値流体力学シンポジウム,E08-2, Dec. 2020.
12.	Kohdai Nakayoshi, Yuzuru Nada and Yoshiyuki Kidoguchi : ディーゼル噴霧の逆デルタ噴射が燃料分布に与える影響の数値計算, 第58回燃焼シンポジウム講演論文集, P143, Dec. 2020.
13.	Ryosuke Isoda, Yuzuru Nada and Yoshiyuki Kidoguchi : 液体燃料を用いた高温空気噴霧燃焼の数値計算, 第58回燃焼シンポジウム講演論文集 C215, Dec. 2020.
14.	Masaya Ono, Yuya Noda, Yuzuru Nada and Yoshiyuki Kidoguchi : ディーゼル噴霧の噴霧挙動の変化が熱発生経過に及ぼす影響, 第30回内燃機関シンポジウム, No.47, Dec. 2019.
15.	Yu Higaki, Yoshiyuki Kidoguchi and Yuzuru Nada : 仮定PDF法を用いた水素火炎および既燃ガスco-flow火炎の数値計算, 第33回数値流体力学シンポジウム, No.04-1, Nov. 2019.
16.	Yoshiki Ota, Yuya Hosokawa, Shahroni Aizam Arshad, Yuzuru Nada and Yoshiyuki Kidoguchi : GLRおよび粘性の変化が内部急速混合型油水噴霧ノズルの噴霧特性に与える影響, 第56回伝熱シンポジウム講演論文集, USB-memory (F135), May 2019.
17.	Yuya Hosokawa, Yoshiki Ota, Arshad Shahroni Mohd Aizam, Yuzuru Nada and Yoshiyuki Kidoguchi : 内部急速混合型油水噴霧ノズルの微粒化特性に対するGLRおよび粘性の影響の解明, 日本機械学会中国四国支部第57期講演会論文集, Vol.USB-memory (814), Mar. 2019.
18.	Rui Kikui, Shinnosuke Miyazaki, Kohdai Nakayoshi, Yoshiyuki Kidoguchi and Yuzuru Nada : ディーゼル噴霧の燃焼経過が燃焼ガス中の未燃成分濃度の履歴に及ぼす影響, 第29回内燃機関シンポジウム, Nov. 2018.
19.	Hiroto Honjo, Yu Hiura, Yuzuru Nada and Yoshiyuki Kidoguchi : 平行噴流バーナーを用いた高温空気噴霧燃焼の数値計算, 第56回燃焼シンポジウム講演論文集, USB-memory (P211), Nov. 2018.
20.	Yu Higaki, Yuzuru Nada and Yoshiyuki Kidoguchi : 多変数ベータ関数を用いた仮定PDF法による乱流拡散火炎の数値計算, 第56回燃焼シンポジウム講演論文集 USB-memory (A223), Nov. 2018.
21.	Atsushi Satoh, Tatsuya Abe, Shinsuke Yasuda, Yuzuru Nada and Yoshiyuki Kidoguchi : 小型直噴ディーゼル機関における排気低減のためのピストン燃焼室内燃焼の促進, 日本機械学会中国四国支部第56期講演会論文集 USB-memory (902), Mar. 2018.
22.	Masashi Nakamura, Shinnosuke Miyazaki, Rui Kikui, Yuzuru Nada and Yoshiyuki Kidoguchi : ディーゼル噴霧の燃焼経過と未燃炭化水素の生成履歴に関する研究, 本機械学会中国四国支部第56期講演会論文集,USB-memory (903), Mar. 2018.
23.	山下裕都, Yuzuru Nada, Yoshiyuki Kidoguchi, 賀谷龍, 中野秀亮 and 小林慎一 : Penetration of burned gas jets issued from a combustion sub-chamber of a lean-burn natural gas engine, 第28回内燃機関シンポジウム, Dec. 2017.
24.	Hiroki Ohkita, Kazuya Sugiyama, Yuzuru Nada and Yoshiyuki Kidoguchi : LPG を用いた高温空気燃焼のNOx 排出特性に対する空気混合の影響, 第55回燃焼シンポジウム講演論文集 (D323), Nov. 2017.
25.	Sho Rikitake, Yuzuru Nada, Yoshiyuki Kidoguchi and Tanahashi Mamoru : 双曲線関数を用いた層流予混合火炎の火炎特性の予測, 第55回燃焼シンポジウム講演論文集 (D134), Nov. 2017.
26.	Tatsuroh Ishihara, Fumiya Kawasaki, Hidenari Sakai, Yuzuru Nada and Yoshiyuki Kidoguchi : 乱流拡散火炎の浮き上がり高さに対する既燃ガス巻き込みの影響の解明, 第55回燃焼シンポジウム講演論文集 (A121), Nov. 2017.
27.	山本憲作, 中野秀亮, 小林慎一, Yuzuru Nada and Yoshiyuki Kidoguchi : 天然ガス希薄燃焼エンジンにおける熱効率向上とNOx低減の両立(第3報エンジン出力から見た効果検証), 自動車技術会2017年秋季大会学術講演会講演予稿集, No.318, Oct. 2017.
28.	Yoshihiro Deguchi, 神本崇博, Yoshiyuki Kidoguchi, Yuzuru Nada and Mitsuhiro Ohta : CT 半導体レーザ吸収法の開発及び実用化展開, 日本機械学会中国四国支部第55 期総会・講演会, Mar. 2017.
29.	Masahide Nakamura, Masashi Nakamura, Shinnosuke Miyazaki, Yoshiyuki Kidoguchi and Yuzuru Nada : 多噴孔ディーゼル噴霧の後燃え期間における燃焼と燃焼生成物濃度履歴に関する研究, 日本機械学会中国四国支部第55期講演会論文集, Vol.CD-ROM (715), Mar. 2017.
30.	Kouki Shimizu, Yuya Noda, Yoshiyuki Kidoguchi and Yuzuru Nada : 噴射条件によるディーゼル噴霧の混合気形成過程の変化が着火，燃焼に及ぼす影響, 日本機械学会中国四国支部第55期講演会論文集, Vol.CD-ROM (714), Mar. 2017.
31.	So Morimoto, Yuzuru Nada and Yoshiyuki Kidoguchi : 副室直噴式天然ガスエンジンにおける筒内混合気分布の数値シミュレーション, 日本機械学会中国四国支部第55期講演会論文集, Vol.CD-ROM (710), Mar. 2017.
32.	Shota Sangawa, Yasufumi Hieda, Yuzuru Nada and Yoshiyuki Kidoguchi : 菜種油を直接適用した直噴ディーゼル機関における潤滑油の燃料希釈に関する研究, 第27回内燃機関シンポジウム講演論文集, Vol.CD-ROM(71), Dec. 2016.
33.	Kazuya Sugiyama, Masayuki Matsumoto, Shoki Fujita, Yuzuru Nada and Yoshiyuki Kidoguchi : 高温空気噴霧燃焼のNOx 排出特性に対するバーナー構造の影響, 第54回燃焼シンポジウム講演論文集, Vol.USB-memory (A342), Nov. 2016.
34.	Fumiya Kawasaki, Shota Nomura, Tatsuroh Ishihara, Yuzuru Nada and Yoshiyuki Kidoguchi : 乱流非予混合火炎の浮き上がり高さに対する既燃ガス温度の影響の解明, 第54回燃焼シンポジウム講演論文集, Vol.USB-memory (C112), Nov. 2016.
35.	賀谷龍, 小林慎一, Yoshiyuki Kidoguchi and Yuzuru Nada : 天然ガス希薄燃焼エンジンにおける熱効率向上とNOx低減の両立(第2報燃焼諸元の影響), 自動車技術会2016年秋季大会学術講演会講演予稿集, Vol.CD-ROM(165), Oct. 2016.
36.	中野秀亮, 小林慎一, Yoshiyuki Kidoguchi and Yuzuru Nada : 天然ガス希薄燃焼エンジンにおける熱効率向上とNOx低減の両立(第1報燃焼コンセプト), 自動車技術会2016年秋季大会学術講演会講演予稿集, Vol.CD-ROM(164), Oct. 2016.
37.	神本崇博, Yoshihiro Deguchi, 髙木琢, 森悠馬, 中川真人, Yoshiyuki Kidoguchi and Yuzuru Nada : CT半導体レーザ吸収法を用いた2次元燃料濃度・温度分布同時計測, 自動車技術学術講演会前刷集, Vol.41, No.16, 1027-1031, May 2016.
38.	神本崇博, Yoshihiro Deguchi, Taku Takagi, 森悠馬, 中川真人, Yoshiyuki Kidoguchi and Yuzuru Nada : CT半導体レーザ吸収法を用いた2次元燃料濃度・温度分布同時計測, 自動車技術会2016年春季大会学術講演会講演予稿集, Vol.CD-ROM(192), May 2016.
39.	Masayuki Matsumoto, Nobuyoshi Takahashi, Kazuya Sugiyama, Yuzuru Nada and Yoshiyuki Kidoguchi : 平行噴流バーナーを用いた高温空気噴霧燃焼の NOx 排出特性に対するノズル間隔の影響, 日本機械学会中国四国支部第54期講演会論文集 CD-ROM (713), Mar. 2016.
40.	髙木琢, Yoshihiro Deguchi, 神本崇博, 森悠馬, 中川真人, Yoshiyuki Kidoguchi and Yuzuru Nada : CT半導体レーザ吸収法を用いた高温・高圧場における二次元温度分布計測, 第53回燃焼シンポジウム講演論文集, 366-367, Dec. 2015.
41.	Yasufumi Hieda, Shota Sangawa, Yuzuru Nada and Yoshiyuki Kidoguchi : 菜種油直噴ディーゼル機関の燃焼と排気に対するEGR の影響, 第26回内燃機関シンポジウム講演論文集, No.97-20158062, Dec. 2015.
42.	Daisuke Asao, Shinichiro Yoshimura, Kazuki Nakamura, Yuzuru Nada and Yoshiyuki Kidoguchi : 内部急速混合型油水噴霧ノズルから噴射される植物油の噴霧特性と液滴内部構造, 第53回燃焼シンポジウム講演論文集, 482-483, Nov. 2015.
43.	Ryu Kaya, Shinichi Kobayashi, Yuzuru Nada and Yoshiyuki Kidoguchi : Research on Effect of Center Direct Injection in Natural Gas Lean-Burn Ebgine, 2015年自動車技術会秋季大会学術講演会予稿集, 207-212, Oct. 2015. (Keyword) Heat engine / Natural gas / Performance / Mixture formation / Numerical calculation
44.	Yasufumi Hieda, Jumpei Nozaki, Yuzuru Nada and Yoshiyuki Kidoguchi : 菜種油を適用した直噴ディーゼル機関の排気改善におけるEGRの効果, 日本機械学会中国四国支部第53期講演会論文集 CD-ROM (1002), Mar. 2015.
45.	Masahiko Imaoka, Masayuki Matsumoto, Nobuyoshi Takahashi, Yuzuru Nada and Yoshiyuki Kidoguchi : 高温空気燃焼のNOx排出特性に対する燃料種の影響の解明, 第52回燃焼シンポジウム講演論文集, Dec. 2014.
46.	Katsuki Onoda, Shinichiro Yoshimura, Daisuke Asao, Yuzuru Nada and Yoshiyuki Kidoguchi : 内部急速混合型油水噴霧ノズルの噴霧特性がバイオマス燃焼の排気に及ぼす影響の解明, 第52回燃焼シンポジウム講演論文集, Dec. 2014.
47.	Junpei Nozaki, Yasufumi Hieda, Kohki Shimizu, Yuzuru Nada and Yoshiyuki Kidoguchi : 菜種油を適用する直噴ディーゼル機関の排気改善における空気流動の効果, 第25回内燃機関シンポジウム講演論文集 CD-ROM, Nov. 2014.
48.	Fumiya Yoshii, Thang Chien Pham, Masahide Nakamura, Yuzuru Nada and Yoshiyuki Kidoguchi : 多噴孔ディーゼル噴霧の燃焼形態がNOx生成速度に及ぼす影響の解明, 第25回内燃機関シンポジウム講演論文集 CD-ROM, Nov. 2014.
49.	Masahiko Imaoka, Masayuki Matsumoto, Yuzuru Nada and Yoshiyuki Kidoguchi : 高温空気噴霧燃焼のNOx排出特性に対する既燃ガス混合の影響, 第51回伝熱シンポジウム講演論文集, Vol.CD-ROM (B235), May 2014.
50.	山崎新史, 奥本博志, Yoshiyuki Kidoguchi and Yuzuru Nada : 日本機械学会中国四国支部第62期講演会, Mar. 2014.
51.	THANG CHIEN PHAM, Yusuke Komatsubara, Fumiya Yoshii, Yuzuru Nada and Yoshiyuki Kidoguchi : 多噴孔ディーゼル噴霧の燃焼形態がNOx生成過程に及ぼす影響, 日本機械学会中国四国支部第52期講演会論文集, Mar. 2014. (Keyword) combustion / diesel engine / toxic emissions
52.	Misato Nakagiri, Naoya Uwa, Yuzuru Nada and Yoshiyuki Kidoguchi : 高密度場におけるディーゼル噴霧構造の変化関す解析, 第24回内燃機関シンポジウム講演論文集 CD-ROM (1), Oct. 2013.
53.	Yusuke Komatsubara, Yuzuru Nada, Yoshiyuki Kidoguchi and Hiroyuki Doi : 多噴孔ディーゼル噴霧の燃焼形態が排気特性に及ぼす影響, 日本機械学会2013年度年次大会 CD-ROM (G081013), Sep. 2013.
54.	Yuzuru Nada, Takuya Sakaidani, Shintaro Shibata and Yoshiyuki Kidoguchi : 二流体噴霧ノズルを用いた高温空気噴霧燃焼の燃焼およびNOx排出特性, 日本機械学会中国四国支部第51期総会講演会講演論文集CD-ROM (CS51-1408), Mar. 2013.
55.	Shouta Nakamatsu, Katsuki Onoda, Yuzuru Nada, 石動更 and Yoshiyuki Kidoguchi : 内部急速混合型油水噴射ノズルを用いたバイオマス燃料の排気特性に関する研究, 第50回燃焼シンポジウム講演論文集, 516-517, Dec. 2012.
56.	Shintaro Shibata, Takuya Sakaidani, Yuzuru Nada and Yoshiyuki Kidoguchi : 液体燃料を用いた高温空気噴霧燃焼のNOx排出特性, 第50回燃焼シンポジウム講演論文集, 514-515, Dec. 2012.
57.	Takashi Yano, A. Sapit, Misato Nakagiri, Yuzuru Nada and Yoshiyuki Kidoguchi : 高温密度雰囲気におけるディーゼル噴霧の蒸発過程解析, 第23回内燃機関シンポジウム講演論文集,CD-ROM (A1-01), Nov. 2012.
58.	Misato Nakagiri, Takashi Yano, A. Sapit, Yuzuru Nada and Yoshiyuki Kidoguchi : 壁面衝突時の菜種油ディーゼル噴霧の噴霧特性, 第82回マリンエンジニアリング学術講演会, Sep. 2012.
59.	Yusuke Komatsubara, Fumihiko Uyama, Yuzuru Nada and Yoshiyuki Kidoguchi : 過給条件におけるディーゼル噴霧の混合気形成が排気特性に及ぼす影響, 日本機械学会2012年度年次大会 CD-ROM (G070026), Sep. 2012.
60.	Tsuroh Kitaokata, Fumihiko Uyama, Yuzuru Nada and Yoshiyuki Kidoguchi : 過給条件における空気流動と多噴孔ノズルの噴霧形成と着火に関する研究, 日本機械学会中国四国支部第50期総会講演会講演論文集, Mar. 2012.
61.	Ryosuke Ii, Takaharu Aio, Yoshiyuki Kidoguchi and Yuzuru Nada : 多段噴射による層状過濃燃焼直噴ディーゼル機関の排気特性, 日本機械学会中国四国支部第50期総会講演会講演論文集, Mar. 2012.
62.	朋志甲斐田, Ali Fawzi bin Mohd Mas, Yusuke Ido, Yoshiyuki Kidoguchi and Yuzuru Nada : 水素添加が噴流火花点火の天然ガスの着火性と火炎の進展に及ぼす効果, 日本機械学会中国四国支部第50期総会講演会講演論文集, Mar. 2012.
63.	Kentaro Uchihara, Shouta Nakamatsu, 三浦更, Yuzuru Nada and Yoshiyuki Kidoguchi : 内部急速混合型油水噴射ノズルを用いたバイオ燃料の燃焼特性, 第49回燃焼シンポジウム講演論文集, 464-465, Dec. 2011.
64.	Sho Nagayasu, Sapit Azwan, Takashi Yano, Yuzuru Nada and Yoshiyuki Kidoguchi : 菜種油ディーゼル噴霧の壁面衝突および噴孔デポジット付着による噴霧特性, 第22回内燃機関シンポジウム講演論文集, 121-126, Nov. 2011.
65.	Kentaro Uchihara, Daisuke Nakagawa, Yuzuru Nada and Yoshiyuki Kidoguchi : 内部急速混合型油水噴射ノズルを用いたバイオ燃料のバーナー燃焼特性に関する研究, 日本機械学会2011年度年次大会 CD-ROM (G060082), Sep. 2011.
66.	川越勇輝, 井伊良輔 and Yoshiyuki Kidoguchi : 直噴ディーゼル機関における二段噴射による層状過濃燃焼の排気改善, 日本機械学会講演論文集, Mar. 2011.
67.	Yusuke Oka, Mas Mohd bin Fawzi Ali, Yoshiyuki Kidoguchi and Yuzuru Nada : 天然ガスの噴流火花点火燃焼における混合気分布と着火性の解析, 日本機械学会講演論文集, Mar. 2011.
68.	坪井康哲, Adam Abdullah, 長安翔, Sapit Azwan, Tomoaki Yatsufusa and Yoshiyuki Kidoguchi : 多重偏光光学系による蒸発ディーゼル噴霧発達過程の解析, 第21回内燃機関シンポジウム講演論文集, Nov. 2010.
69.	長安翔, 坪井康哲, Abdullah Adam, Tomoaki Yatsufusa and Yoshiyuki Kidoguchi : 噴霧特性からみた菜種油のディーゼル機関への適用性に関する研究, 日本機械学会講演論文集, Sep. 2010.
70.	林啓輔, 宮本貴之, Amir Khalid, Tomoaki Yatsufusa and Yoshiyuki Kidoguchi : 雰囲気温度および酸素濃度がディーゼル噴霧の着火燃焼に及ぼす影響に関する研究, 日本機械学会講演論文集, Mar. 2010.
71.	中川大輔, 工村達也, Tomoaki Yatsufusa and Yoshiyuki Kidoguchi : 内部急速混合型油水噴射ノズルによるバーナ燃焼特性に関する研究, 日本機械学会講演論文集, Mar. 2010.
72.	中川大輔, 工村達也, Tomoaki Yatsufusa and Yoshiyuki Kidoguchi : 内部急速混合型油水噴射ノズルによるバーナ燃焼特性に関する研究, 日本機械学会講演論文集, Mar. 2010.
73.	中川義基, 岩瀬敦仁, Tomoaki Yatsufusa, Yoshiyuki Kidoguchi and Akiharu Ousaka : 水エマルジョン燃料バーナの燃焼と高効率利用に関する研究, 日本機械学会中国四国支部46期総会・講演会講演論文集, 305-306, Mar. 2008.
74.	佐藤康貴, Tomoaki Yatsufusa, Yoshiyuki Kidoguchi and Kei Miwa : Optimization of the Electrode and Soot Filter Structure, 日本機械学会中国四国支部46期総会・講演会講演論文集, Mar. 2007.
75.	川上淳, 藤田恭史, Tomoaki Yatsufusa and Yoshiyuki Kidoguchi : Effects of Boost Pressure and Swirl on Mixture Formation of High Pressure Diesel Spray, 日本機械学会中国四国支部46期総会・講演会講演論文集, Mar. 2007.
76.	Suminori Tanaka, Shota Matsubara, Suguru Tojo, Kei-ichiro Murai, Toshihiro Moriga, Yoshiyuki Kidoguchi and Kei Miwa : ディーゼル微粒子の酸化触媒に関する研究, 化学工学会徳島大会, Oct. 2006.
77.	Suguru Tojo, Kei-ichiro Murai, Toshihiro Moriga, Shota Matsubara, Suminori Tanaka, Yoshiyuki Kidoguchi and Kei Miwa : 種々のアルミナに担持された酸化鉄触媒の合成とその評価, 化学工学会徳島大会, Oct. 2006.
78.	Kei-ichiro Murai, Yuichiro Murakami, Yusuke Kaneko, Doji Suzuki, Suminori Tanaka, Toshihiro Moriga, Yoshiyuki Kidoguchi and Kei Miwa : アルミナ担持PdO-CeO₂触媒へのTiO₂添加効果, 化学工学会徳島大会, Oct. 2006.
79.	Shoichiro Fujisawa, Yoshiyuki Kidoguchi, Yasunori Kozuki, Shigeki Matsuo, Kojiro WATANABE and Kei Miwa : 修了生アンケートから観たエコシステム工学専攻の大学院教育, 平成18年度工学・工業教育研究講演会講演論文集, 546-547, Jul. 2006.

Report:

1.	Hiroyuki Mizuguchi, Yoshiyuki Kidoguchi, Tomoaki Yatsufusa and Hiroyuki Inubuse : バイオマスエネルギー資源の利活用による分散型エネルギー社会の構築に係る要素技術の開発とその適用システムに関する研究, Apr. 2008.

Patent:

1.	賀谷龍, 中野秀亮, 小林慎一, Yoshiyuki Kidoguchi and Yuzuru Nada : ガスエンジン, 2016-254690 (Dec. 2016), 2018-66369 (Apr. 2018), 6714198 (Jun. 2020).
2.	賀谷龍, 小林慎一, 中野秀亮, Yoshiyuki Kidoguchi and Yuzuru Nada : 内燃機関, 2015-197902 (Oct. 2015), 2017-72032 (Apr. 2017), .
3.	賀谷龍, 小林慎一, 中野秀亮, Yoshiyuki Kidoguchi and Yuzuru Nada : 内燃機関, 2015-197900 (Oct. 2015), 2017-72031 (Apr. 2017), .
4.	Yoshiyuki Kidoguchi, Toshihiro Moriga, Kei-ichiro Murai, Kei Miwa and Takashi Nagamine : ディーゼル機関の排気ガス浄化フィルタ, 2008-055552 (Mar. 2008), 2009-208025 (Sep. 2009), .
5.	Kei Miwa and Yoshiyuki Kidoguchi : シリンダー側壁にかかるスラスト荷重を低減した動力変換装置, 2004-149848 (May 2004), 2005-330889 (Dec. 2005), .
6.	Kei Miwa and Yoshiyuki Kidoguchi : 燃料ガスを筒内噴射する内燃機関と内燃機関の点火方法, 2004-059888 (Mar. 2004), 2005-248816, .
7.	Kei Miwa and Yoshiyuki Kidoguchi : 燃料ガスを筒内噴射する内燃機関と内燃機関の点火方法, 2003-287136 (Aug. 2003), 2005-054701, .
8.	Kei Miwa, Yoshiyuki Kidoguchi, Ali Mohammadi, Ichiro Nakabayashi and Toshihiro Moriga : ディーゼルエンジン排ガス中の粒子状物質除去触媒, 2003-057875 (Mar. 2003), 2004-267807 (Sep. 2004), .
9.	Kei Miwa and Yoshiyuki Kidoguchi : 気体燃料を筒内噴射する内燃機関と内燃機関の点火方法, 2002-050532 (Feb. 2002), 2003-254068 (2003), 3637391 (Jan. 2005).

Grants-in-Aid for Scientific Research (KAKEN Grants Database @ NII.ac.jp)

Frequency-swept discrete Fourier transform spectroscopy ~demonstration and application in THz and near-infrared region~ (Project/Area Number: 26246031 )
High Load and Less CO2 Burner Combustion of Incombustible Fuels Applying an Injector on the Concept of Fuel-water Rapid Mixing (Project/Area Number: 23560234 )
Technology of Aftertreatment for Simultaneous Reduction of NOx and Particulate Emissions Using High Frequency Barrier Discharge Plasma and Low Temperature Oxidation Catalyst (Project/Area Number: 15560183 )
C0_2 selective EGR for Emission Reduction of Cogeneration Engine System (Project/Area Number: 12650206 )
DeNOx Combustion of Transient High Pressure Spray Using Deoxidization reaction of NO (Project/Area Number: 10650214 )
Search by Researcher Number (70294717)

Professor : Kidoguchi, Yoshiyuki

Research

Personal Web Page

Field of Study

Subject of Study

Book / Paper

Academic Paper (Judged Full Paper):

Review, Commentary:

Proceeding of International Conference:

Proceeding of Domestic Conference:

Report:

Patent:

Grants-in-Aid for Scientific Research (KAKEN Grants Database @ NII.ac.jp)