UEKI Hironobu

J-GLOBAL         Last updated: May 31, 2019 at 11:49
 
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Name
UEKI Hironobu
Affiliation
Nagasaki University
Section
Graduate school of Engineering
Job title
Professor
Degree
Doctor of Engineering(Kyushu University), Master of Engineering(Kyushu University)

Research Areas

 
 

Education

 
 
 - 
1978
Department of Mechanical Engineering, Faculty of Engineering, Nagasaki University
 
 
 - 
1983
Mechanical Engineering, Graduate School, Division of Engineering, Kyushu University
 

Published Papers

 
森賢斗, 駒田佳介, 植木弘信
日本機械学会論文集(Web)   83(850) ROMBUNNO.16‐00507(J‐STAGE)   2017
駒田佳介, 川原田光典, 宇田川和正, 鈴木浩高, 坂口大作, 植木弘信
日本機械学会論文集(Web)   83(845) ROMBUNNO.16‐00313(J‐STAGE)   2017
川原田光典, 坂口大作, 植木弘信, 石田正弘
日本機械学会論文集(Web)   82(836) 15‐00466(J‐STAGE)-00466-15-00466   2016
A laser 2-focus velocimeter (L2F) was used for measurements of velocity and size of droplets in diesel fuel sprays. Diesel fuel was injected intermittently into the atmosphere using a 8-hole injector nozzle. The diameter of the nozzle orifice was ...
Kawaharada Noritsune, Sakaguchi Daisaku, Ueki Hironobu, Ishida Masahiro
JOURNAL OF THERMAL SCIENCE AND TECHNOLOGY   10(2)    2015   [Refereed]
Kaida Ryo, Watanabe Shotaro, Yamamoto Shohei, Sakaguchi Daisaku, Ueki Hironobu, Ishida Masahiro
Transactions of Society of Automotive Engineers of Japan   45(3) 515-520   2014
In the present study, the effect of butanol blend fuel on soot reduction was investigated in a diesel engine theoretically as well as experimentally. The concept of the threshold sooting index (TSI), which has been proposed as the sooting tendency...
Shohei Yamamoto, Shotaro Watanabe, Keisuke Komada, Daisaku Sakaguchi, Hironobu Ueki, Masahiro Ishida
SAE International Journal of Fuels and Lubricants   6    Sep 2013
In order to utilize bio-alcohols as the fuel for diesel engines, combustion characteristics of alcohol blended with gas oil were compared between ethanol and n-butanol in a direct injection diesel engine. In the case of the same cetane number betw...
YAMAMOTO Shohei
TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B   79(799) 380-389   Jan 2013
In order to realize a premixed compression ignition (PCI) engine by utilizing bio-alcohol, combustion characteristics of bio-alcohol blended with gas oil were compared between ethanol and n-butanol in a diesel engine. The effects of the ethanol bl...
YAMAMOTO Shohei, SAKAGUCHI Daisaku, UEKI Hironobu, ISHIDA Masahiro
TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B   79(807) 2477-2485   Jan 2013
Utilization of bio-ethanol as an alternative fuel for diesel engines is one of the effective strategy for suppression of global warming because of its high thermal efficiency. In order to realize a premixed compression ignition (PCI) engine by uti...
Sakaguchi Daisaku, Fujii Takuji, Ueki Hironobu, Ishida Masahiro, Hayami Hiroshi
JOURNAL OF THERMAL SCIENCE   21(4) 384-390   Jul 2012   [Refereed]
川原田 光典, 駒田 佳介, 坂口 大作, 植木 弘信, 石田 正弘
Transactions of Society of Automotive Engineers of Japan   43(1) 103-108   2012
2-D phase doppler technique was used for the measurements of the velocity, size, and flight direction of droplets in diesel sprays. The diameter of the nozzle orifice was 0.113mm. The rail pressure was set at 40MPa by using a common rail system. M...
KOMADA Keisuke, SAKAGUCHI Daisaku, UEKI Hironobu, ISHIDA Masahiro
TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B   77(774) 274-281   Dec 2011
A laser 2-focus velocimeter (L2F) has been applied for measurements of velocity and size of droplets in the dense region of diesel spray. Investigated was the fuel spray injected intermittently into the atmosphere from an injector nozzle with the ...
S. Jung, M. Ishida, S. Yamamoto, H. Ueki, D. Sakaguchi
International Journal of Automotive Technology   11 611-616   Sep 2010
For realizing a premixed charge compression ignition (PCCI) engine, the effects of bio-ethanol blend oil and exhaust gas recirculation (EGR) on PM-NOx trade-off have been investigated in a single cylinder direct injection diesel engine with the co...
Masahiro Ishida, Shohei Yamamoto, Hironobu Ueki, Daisaku Sakaguchi
Energy   35(12) 4572-4581   Jan 2010
In order to realize a premixed compression ignition (PCI) engine, the effects of bioethanol-gas oil blends and exhaust gas recirculation (EGR) on PM-NO. x trade-off have been investigated focusing on ignition delay, premixed combustion, diffusion ...
Daisaku SAKAGUCHI, Shohei YAMAMOTO, Hironobu UEKI and Masahiro ISHDIA
Journal of Fluid Science and Technology   5(1) 75-85   2010
MURAKAMI Tengen, ISHIDA Masahiro, SAKAGUCHI Daisaku, UEKI Hironobu, HAYAMI Hiroshi
TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B   76(770) 1491-1498   2010
A low solidity cascade diffuser (LSD) shows features of a wide operating range and a high pressure ratio, however, a high level of noise. The first objective of the present study is to show that the noise can be reduced effectively without deterio...
SAKAGUCHI Daisaku, ISHIDA Masahiro, MURAKAMI Tengen, UEKI Hironobu, HAYAMI Hiroshi
TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B   76(768) 1169-1175   2010
This paper deals with the effect of the blade leading edge location of low solidity cascade diffuser (LSD) on noise and diffuser performance in a centrifugal blower. The noise of the vaneless diffuser varied little in a wide flow rate range, on th...
SAKAGUCHI Daisaku, UEKI Hironobu, ISHIDA Masahiro, AMIDA Oluwole
Transactions of Society of Automotive Engineers of Japan   39(6) 137-142   Nov 2008
A laser 2-focus velocimeter (L2F) with a micro-scale probe was used for measurements of velocity and size of droplets in diesel sprays near the spray center 15 mm downstream from the nozzle exit. The injection pressure was set at 40 MPa by using a...
Daisaku Sakaguchi, Oluwo Le Amida, Hironobu Ueki, Masahiro Ishida
Journal of Thermal Science   17(1) 90-96   Mar 2008
In order to investigate the distribution of droplet sizes in the core region of diesel fuel spray, instantaneous measurement of droplet sizes was conducted by an advanced laser 2-focus velocimeter (L2F). The micro-scale probe of the L2F is made up...
Ueki Hironobu, Ishida Masahiro, Sakaguchi Daisaku, Amida Oluwole
Transactions of Society of Automotive Engineers of Japan   39(5) 5_53-5_58   2008
A laser 2-focus velocimeter(L2F) with micro-scale probe was used for the measurments of velocity and size of droplets in diesel sprays near the spray center 15mn downstream from the nozzle. The injection pressure was set 70 and 100 MPa by using a ...
Hironobu Ueki, Masahiro Ishida, Daisaku Sakaguchi
Journal of Thermal Science   Vol.14(No.2) 181-186   Jan 2005
In order to investigate the effect of transient needle opening on early stage of spray behavior, simultaneous measurements of velocity and size of droplet were conducted by a newly developed laser 2-focus velocimeter (L2F). The micro-scale probe o...

Misc

 
Study of heterogeneous structure in diesel fuel sprays by using 2-D phase doppler interferometer
Noritsune KAWAHARADA, Keisuke KOMADA, Daisaku SAKAGUCHI, Hironobu UEKI and Masahiro ISHIDA
Transaction of JSAE   43(1) 103-108   2012
植木弘信
微粒化   15(52) 141-143   Jan 2007
"Verification of Droplet Breakup Model on Diesel Fuel Spray"
H.Ueki, M.Ishida, D.Sakaguchi,T.Hashizume and Oluwoli Olaiwola Amida
Proceedings of the 10th Symposium on Power and Energy Technology (JSME)   No.05-30(Paper No.OS9-02) 161-164   2005
石田正弘, 田貝哲哉, 植木弘信
長崎大学工学部研究報告   34(63) 9-15   Jul 2004
"Effect of Gasoline/Gas-Oil on Smoke Reduction in a DI Diesel Engine"
M.Ishida, T.Tagai and H.Ueki
Reports of the Faculty of Engineering   34(63) 9-15   2004
"Effect of Equivalence Ratio and Temperature of CNG Premixture on Knock Limit in a Dual Fueled Diesel Engine"
T.Tagai, M.Ishida, H.Ueki and T.Watanabe
Paper No. SAE 2003-01-1934 1807-1816   2003
"Estimation of 3-D Luminostiy Distribution of Diffusion Flame by Single Image Including Lens Aberration"
H.Ueki, M.Ishida, D.Sakaguchi and M.Tokumoto
Proceedings of the 40th Symposium (Japanese) on Combustion   521-522   2002
坂口大作, 石田正弘, 植木弘信, SUN Z
長崎大学工学部研究報告   30(55) 131-135   Jul 2000
石田正弘, 植木弘信, 黒川清司
長崎大学工学部研究報告   30(55) 137-143   Jul 2000
坂口大作, 石田正弘, 植木弘信, SUN Z
長崎大学工学部研究報告   30(54) 23-28   Jan 2000
植木 弘信, 石田 正弘, 坂口 大作
Turbomachinery   28(5) 257-264   2000
植木弘信
旭硝子財団助成研究成果報告(Web)   1996 96B-C08-P096 (WEB ONLY)   Mar 1997
石田正弘, 植木弘信, LUO G‐F, 黒川清司
長崎大学工学部研究報告   25(44) 1-8   Jan 1995
石田正弘, LUO G‐F, 植木弘信, 黒川清司
長崎大学工学部研究報告   24(43) 129-134   Jul 1994
植木弘信, 石田正弘
ターボ機械   21(10) 628-633   Oct 1993
植木弘信, 石田正弘, 片岡洋一, 黒川清司, 吉村良孫
長崎大学工学部研究報告   17(28) 15-22   Jan 1987
速水洋, 植木弘信, 妹尾泰利
九州大学生産科学研究所報告   (79) 55-68   Dec 1985
植木弘信, 児玉好雄, 栗須正登
長崎大学工学部研究報告   14(23) 107-113   Jul 1984
栗須正登, 田中清裕, 児玉好雄, 東克彦, 高橋賢一郎, 植木弘信
長崎大学工学部研究報告   14(23) 99-106   Jul 1984
速水洋, 植木弘信, 妹尾泰利
九州大学生産科学研究所報告   (74) 167-174   Mar 1983
速水洋, 植木弘信, 東森弘高, 妹尾泰利
九州大学生産科学研究所報告   (74) 159-166   Mar 1983
植木弘信, 速水洋
九州大学生産科学研究所報告   (74) 249-254   Mar 1983
植木 弘信, 宇都 幸一, 野中 稀平, 栗須 正登
Reports of the Faculty of Engineering,Nagasaki University   (12) p11-20   Feb 1979
Recently the field survey, the model observation, and the numerical simulation are reported for countermeaserment of pollution in Omura Bay. It's seems that the best way for the improvment of pollution in Omura Bay is to introduce the new sea wate...
植木 弘信, 宇都 幸一, 野中 稀平, 栗須 正登
Reports of the Faculty of Engineering,Nagasaki University   (12) p21-28   Feb 1979
In this paper, the diffusion of pollution is simulated in Omura Bay, by the electric computer for the case that the new sea water is introduced in Omura Bay. The results of tidal simulation is reported in the other paper. Here, three different ana...

Conference Activities & Talks

 
関新一郎, 斎藤学, 駒田佳介, 坂口大作, 植木弘信
内燃機関シンポジウム講演論文集(CD-ROM)   19 Nov 2018   
岡崎智大, 駒田佳介, 植木弘信
自動車技術会大会学術講演会講演予稿集(CD-ROM)   15 Oct 2018   
安心院力也, 駒田佳介, 植木弘信
自動車技術会大会学術講演会講演予稿集(CD-ROM)   15 Oct 2018   
秋山宜槻, 駒田佳介, 植木弘信
微粒化シンポジウム講演論文集(CD-ROM)   2018   
関新一郎, 斎藤学, 駒田佳介, 坂口大作, 植木弘信
微粒化シンポジウム講演論文集   19 Dec 2017   
大宅一哉, 駒田佳介, 山之内大介, 植木弘信
自動車技術会大会学術講演会講演予稿集(CD-ROM)   9 Oct 2017   
秋吉朝喜, 駒田佳介, 山之内大介, 植木弘信
自動車技術会大会学術講演会講演予稿集(CD-ROM)   9 Oct 2017   
関広太, 駒田佳介, 成瀬大和, 宇田川和正, 植木弘信
自動車技術会大会学術講演会講演予稿集(CD-ROM)   22 May 2017   
今村隆浩, 駒田佳介, 成瀬大和, 宇田川和正, 植木弘信
自動車技術会大会学術講演会講演予稿集(CD-ROM)   22 May 2017   
Keisuke Komada, Yamato Naruse, Hironobu Ueki
COMODIA 2017 - 9th International Conference on Modeling and Diagnostics for Advanved Engine Systems   1 Jan 2017   
Copyright © 2017 by the Japan Society of Mechanical Engineers. L2F (Laser 2-Focus Velocimeter) has been utilized for the measurement of velocity and size of droplets in diesel fuel spray injected from a single-hole nozzle. The L2F had a micro-scal...
鈴木啓太, 成瀬大和, 駒田佳介, 植木弘信
内燃機関シンポジウム講演論文集(CD-ROM)   4 Dec 2016   
成瀬大和, 斎藤学, 駒田佳介, 坂口大作, 植木弘信
日本機械学会年次大会講演論文集(CD-ROM)   10 Sep 2016   
大石勇気, 駒田佳介, 坂口大作, 植木弘信
微粒化シンポジウム講演論文集   17 Dec 2015   
森本祐基, 川原田光典, 坂口大作, 植木弘信
内燃機関シンポジウム講演論文集(CD-ROM)   8 Dec 2015   
森賢斗, 川原田光典, 坂口大作, 植木弘信
内燃機関シンポジウム講演論文集(CD-ROM)   8 Dec 2015   
森賢斗, 駒田佳介, 坂口大作, 植木弘信
自動車技術会大会学術講演会講演予稿集(CD-ROM)   9 Oct 2015   
森本祐基, 植木弘信, 川原田光典, 坂口大作
日本機械学会年次大会講演論文集(CD-ROM)   12 Sep 2015   
鈴木啓太, 植木弘信, 川原田光典, 坂口大作
日本機械学会年次大会講演論文集(CD-ROM)   12 Sep 2015   
Noritsune Kawaharada, Daisaku Sakaguchi, Hironobu Ueki, Masahiro Ishida
SAE Technical Papers   1 Sep 2015   
© 2015 SAE Japan. Measurements of temporal and spatial changes in the velocity and size of droplets of diesel fuel sprays under two injection pressures were conducted near the nozzle orifice by a laser 2-focus velocimeter (L2F). The result showed ...
松田翔, 川原田光典, 坂口大作, 植木弘信, 石田正弘
自動車技術会大会学術講演会講演予稿集(CD-ROM)   18 May 2015   

Research Grants & Projects

 
Research and Development of Laser Velocimeter Using Optoelectronic Devices
Project Year: 1989