Keiichi KosekiProfessor for Academic Advancement
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Paper
- The Ensurance of Resilience in Decades of Drastic Energy Revolution
平野創; 古關惠一, 大阪 : エネルギー・資源学会
エネルギー・資源, Nov. 2022 - 2050年エネルギー需給におけるモビリティ変化(ガソリン・軽油)のインパクト検討(1)—A Study regarding the Semi-quantitative Impact of Mobility Change (Gasoline
古関 惠一; 飯田 訓正, [大阪] : エネルギー・資源学会
エネルギー・資源学会研究発表会講演論文集, Jul. 2020 - Driving Cycle Simulation of a Vehicle with Gasoline Homogeneous Charge Compression Ignition Engine Using a Low-RON Fuel
Takeaki Kudo; Yasuo Moriyoshi; Tatsuya Kuboyama; Toshio Yamada; Kei-Ichi Koseki; Yoichi Akiyama, An improvement of thermal efficiency of internal combustion engines is strongly required. Meanwhile, from the viewpoint of refinery, CO2 emissions and gasoline price decrease when lower octane gasoline can be used for vehicles. If lower octane gasoline is used for current vehicles, fuel consumption rate would increase due to abnormal combustion. However, if a Homogeneous Charge Compression Ignition (HCCI) engine were to be used, the effect of octane number on engine performance would be relatively small and it has been revealed that the thermal efficiency is almost unchanged. In this study, the engine performance estimation of HCCI combustion using lower octane gasoline as a vision of the future engine was achieved. To quantitatively investigate the fuel consumption performance of a gasoline HCCI engine using lower octane fuel, the estimation of fuel consumption under different driving test cycles with different transmissions is carried out using 1D engine simulation code. As a result, combining high compression ratio and Continuously Variable Transmission (CVT) can improve the fuel consumption in HCCI/SI combustion even using lower octane gasoline., SAE International
SAE Technical Papers, 2016 - Effect of Low Octane Gasoline on Performance of a HCCI Engine with the Blowdown Supercharging
Tatsuya Kuboyama; Shunsuke Goto; Yasuo Moriyoshi; Keiichi Koseki; Yoichi Akiyama, SAE International
SAE Technical Paper Series, 01 Sep. 2015 - Survey report: Progress in commercialization of advanced biofuels technologies
Imai Akio; Ohashi Hiroshi; Koseki Keiichi; Taneda Daisuke; Nagumo Atsuro; Matsui Konosuke; Matsuda Hitoshi; Watanabe Shigeyuki, 石油学会・新エネルギー部会では次世代バイオ燃料分科会を組織し、次世代バイオ燃料に係わる動向調査を実施している。ここで次世代バイオ燃料とは、現在普及しているバイオ燃料の課題（食糧との競合，品質面の欠点等）を克服するセルロース系エタノールおよび水素化バイオジェット・軽油と定義している。今回、これら次世代バイオ燃料製造技術において商業生産に到達した技術について調査した結果を報告する。, The Japan Petroleum Institute
Proceeding of Annual/Fall Meetings of the Japan Petroleum Institute, 2014 - Study of the Impact of High Biodiesel Blends on Engine Oil Performance
Ken-ichi Okamoto; Takashi Kaneko; Tomoaki Kakihara; Keiichi Tsuchihashi; Masanori Okada; Kiminobu Hirata; Tsutomu Hasegawa; Yoshiro Egashira; Masahiko Shibuya; Keiichi Koseki; Toru Kawatani; Ken Matsuura; Kyouji Hosono; Mamoru Miyazaki, SAE International
SAE International Journal of Fuels and Lubricants, 30 Aug. 2011 - Investigations of the impact of 10% ethanol blended fuels on performances of sold gasoline vehicles in the Japanese market already on the road in Japan
Toshiyuki Hirose; Osamu Nakamura; Nobuhiro Okabe; Yukihiro Tsukasaki; Keiichi Koseki; Hiroshi Tsuda; Masashi Iizuka; Tadahide Sone; Hideaki Ando; Atsushi Kameoka; Hideki Komada; Makoto Hasegawa; Tatsuya Murakami; Mamoru Miyazaki, SAE International
SAE Technical Paper Series, 30 Aug. 2011 - Investigations of Compatibility of ETBE Gasoline with Current Gasoline Vehicles II
Keiichi Koseki; Aruto Hayashi; Kazuki Fukuda; Mitsuaki Wakita; Nobuhiro Okabe; Manabu Watanabe; Tsutomu Kikuchi; Kuniaki Atsuta; Hideshi Aiko; Atsushi Kameoka; Masaru Kohakura, SAE International
SAE Technical Paper Series, 23 Jul. 2007 - Investigations of Compatibility of ETBE Gasoline with Current Gasoline Vehicles
Keiichi Koseki; Mitsuaki Wakita; Nobuhiro Okabe; Takashi Kaneko; Manabu Watanabe; Kaoru Horie; Tsutomu Kikuchi; Kuniaki Atsuta; Hideshi Aiko; Atsushi Kameoka; Akihiko Honma, SAE International
SAE Technical Paper Series, 16 Oct. 2006 - 直噴ガソリンエンジン車の燃費に及ぼすガソリン性状の影響に関する高精度評価法の研究
寒川 泰紀; 古関 惠一; 川口 浩司, 東京 : 自動車技術会
自動車技術会論文集 = Transactions of the Society of Automotive Engineers of Japan / 自動車技術会 編, Jul. 2005 - 石油・潤滑油製品シリーズ(6)軽油,その自動車燃料としての利用
古関 恵一; 大森 敬朗, 東京 : 石油学会 ; 1978-
ペトロテック = Petrotech : 石油学会情報誌 / 石油学会 編, Jun. 2004 - A Study of Injector Deposits, Combustion Chamber Deposits (CCD) and Intake Valve Deposits (IVD) in Direct Injection Spark Ignition (DISI) Engines II
Kazutoshi Noma; Toshiyuki Noda; Hidekatsu Isomura; Tsuyoshi Ashida; Ryuichiro Kamioka; Toru Isoda; Takahiro Nishida; Hiroyuki Goto; Atsushi Kameoka; Keiichi Koseki; Manabu Watanabe; Masahiro Seo; Syunichi Koide; Eiji Tanaka; Hiroyuki Fukui; Yuji Yamazaki; Satoshi Ohta; Yusuke Notsuki; Katsumi Tsuboi, SAE International
SAE Technical Paper Series, 27 Oct. 2003 - Improvement of Repeatability in Tailpipe Emission Measurement with Direct Injection Spark Ignition (DISI) Vehicles
Yasunori Sougawa; Keiichi Koseki; Hiroshi Kawaguchi; Junichi Nishimura; Kazuyoshi Namiyama; Yutaka Yamagishi; Yasuhiro Ogawa, SAE International
SAE Technical Paper Series, 21 Oct. 2002 - A Study of Injector Deposits, Combustion Chamber Deposits (CCD) and Intake Valve Deposits (IVD) in Direct Injection Spark Ignition (DISI) Engines
Kazutoshi Noma; Toshiyuki Noda; Tsuyoshi Ashida; Ryuichiro Kamioka; Kyoji Hosono; Takahiro Nishida; Atsushi Kameoka; Keiichi Koseki; Manabu Watanabe; Ko Takahashi; Syunichi Koide; Teruo Suzuki; Hiroyuki Fukui; Masanori Hirose; Satoshi Ohta; Yusuke Notsuki; Katsumi Tsuboi, SAE International
SAE Technical Paper Series, 21 Oct. 2002 - A Study on the Effects of Sulfur in Gasoline on Exhaust Emissions
Keiichi Koseki; Tsutomu Uchiyama; Masanobu Kawamura; Shigeo Sembokuya, SAE International
SAE Technical Paper Series, 19 Jun. 2000 - RVP Dependence of Evaporative Emissions for Japanese Current and Older Vehicles and U.S. Vehicles Using Typical Japanese Gasoline
Keiichi Koseki; Tatsuji Matsumoto; Kenji Morita; Masanori Hirose; Shigeo Sembokuya, SAE International
SAE Technical Paper Series, 06 Mar. 2000 - Liquid membrane electrolyte for electrochromic windows
K KOSEKI; Y DEMIZU; N OOTO; S SAKURADA, Elsevier BV
Solid State Ionics, Nov. 1993 - A Photothermal Study of the Photolysis of Bromine at 532 nm
K. Koseki; H. Matsui; M. Koshi, Springer Berlin Heidelberg
Photoacoustic and Photothermal Phenomena II, 1990 - Measurement of the Reaction Rate of BrNO + Br →Br2 + NO by the Thermal Lens Method
K. Koseki; M. Koshi; H. Matsui, Springer Berlin Heidelberg
Photoacoustic and Photothermal Phenomena, 1988 - Photoacoustic Study of Vibrational Relaxation of NO
M. Koshi; K. Koseki; H. Matsui, Abstract
The first vibrational level of NO diluted in He is excited by the mechanically chopped CO laser beam and the relaxation rate constant is determined by analysing the phase shift of the acoustic signals at a temperature range of 235 – 294 K. Additional measurements in a shock tube have been done to cover the higher temperature range of 700–1900 K. The present results agree very well with those of previous work. The transition probability of vibrational energy transfer of NO to He can be expressed by The short‐range repulsive collision model is found to represent the present experimental results of the NOHe system., Wiley
Berichte der Bunsengesellschaft für physikalische Chemie, Mar. 1985
MISC
- A Study regarding the Semi-quantitative Impact of Mobility Change (Gasoline / Diesel fuel) to the Nationwide Energy Demand in 2050 in Japan: I
古関惠一; 飯田訓正
エネルギー・資源学会研究発表会講演論文集(CD-ROM), 2020 - 燃費に及ぼすガソリン性状の影響の評価手法に関する研究開発
河野尚毅; 寒川泰紀; 中村修; 浪山和義; 西村純一; 古関恵一; 川口浩司
石油産業活性化センター技術開発研究成果発表会要旨集(CD-ROM), 2007
Books and other publications
