Presentations -

Potential of Fuel Inhomogeneity for Reducing Pressure Rise Rates in a HCCI Engine -Combustion Analysis Using Chemiluminescence Imaging-

IWAMA OSAMU

日本機械学会2007年度年次大会 (関西大学) , 

2007.09

, 

Oral presentation (general), (社)日本機械学会

An Investigation of the Effect of Thermal Stratification on HCCI Combustion by using Rapid Compression Machine

Hiroaki Nakano, Ock Taeck Lim, Norimasa Iida

2007 JSAE/SAE International Fuels & Lubricants Meeting, Kyoto (Kyoto) , 

2007.07

, 

Oral presentation (general), JSAE/SAE

An Investigation of Combustion Control Using EGR for Small and Light HCCI Engine Fuelled with DME

Yoshihiko Kanoto, Tetsuo Ohmura, Norimasa Iida

2007 JSAE/SAE International Fuels & Lubricants Meeting, Kyoto (Kyoto) , 

2007.07

, 

Oral presentation (general), JSAE/SAE

Potential of Thermal Stratification and Partial Fuel Stratification for Reducing Pressure Rise Rate in HCCI Engines

YOSHIDA AKANE

自動車技術会2007年春季学術講演会 (パシフィコ横浜) , 

2007.05

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Oral presentation (general), (社)自動車技術会

小型軽量４ストロークＨＣＣＩ機関を対象としたEGRガススロットル方式による燃焼制御

NAGAI KENICHIRO

2006年度自動車技術会関東支部学術研究講演会 (芝浦工業大学) , 

2007.03

, 

Oral presentation (general), (社)自動車技術会

Analysis of the Combustion of a HCCI Engine using Chemiluminescence Imaging

IWAMA OSAMU

2006年度自動車技術会関東支部学術研究講演会 (芝浦工業大学) , 

2007.03

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Oral presentation (general), (社)自動車技術会

An Investigation of the Effects of Inhomogeneity in Mixtures on HCCI Combustion with the Measurement of Chemiluminescence Images "

IIDA NORIMASA

第19回内燃機関シンポジウム (東京工業大学) , 

2007.01

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Oral presentation (general), (社)日本機械学会

A Study about the effect of Inhomogeneity on HCCI Combustion conducted on Rapid Compression Machine

NAKANO HIROAKI

第19回内燃機関シンポジウム (東京工業大学) , 

2007.01

, 

Oral presentation (general), (社)日本機械学会

　View Summary

Effect of inhomogeneity of combustion chamber has been thought as one of the way to avoid dramatically generating heat in HCCI Combustion. The purpose of this research is to investigate the effect of inhomogeneity, especially thermal stratification, HCCI Combustion fueled with DME, n-Butane, n-Heptane and iso-Octane. Thermal stratification is made in Combustion Chamber of Rapid Compression Machine with pre-mixture by buoyancy effect. The Pre mixture is adiabatic compressed and on that process, in cylinder gas pressure and two-dimensional chemiluminescence images are measured and analyzed.

A Study on Combustion Control by Using Hot and Cold EGR for HCCI Engines Fuelled with DME

Testuo Ohmura

第44回燃焼シンポジウム (広島国際会議場) , 

2006.12

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Oral presentation (general), 日本燃焼学会

Effect of Degree of Unmixiedness in Mixture on HCCI Combustion

Junpei Ozaki

第44回燃焼シンポジウム (広島国際会議場) , 

2006.12

, 

Oral presentation (general), 日本燃焼学会

A Consideration of the Criteria of Knocking Generation in HCCI Engines

IIDA NORIMASA

熱工学コンファレンス2006 (慶應義塾大学矢上キャンパス) , 

2006.11

, 

Oral presentation (general), (社)日本機械学会 熱工学部門

An Investigation about the effect of Fuel Stratification on HCCI Combustion by Chemiluminescence Imaging.

Daisei Nagaoka

熱工学コンファレンス2006 (慶應義塾大学矢上キャンパス) , 

2006.11

, 

Oral presentation (general), (社)日本機械学会 熱工学部門

A Study on Combustion Control by Using Internal and External EGR for HCCI Engines Fuelled with DME

Tetsuo Ohmura, Masato Ikemoto, Norimasa Iida

2006 SETC (Small Engine Technology Conference & Exposition), November 2006, San Antonio, TX, USA, (San Antonio, Texas) , 

2006.11

, 

Oral presentation (general), SAE

　View Summary

The Homogeneous Charge Compression Ignition (HCCI) engine is possible to achieve high thermal efficiency and low emissions. One of the main challenges with HCCI engines is structuring the systems to control combustion phasing, crank angle of 50% heat release (CA50), for keeping high thermal efficiency and avoiding an excessive rate of pressure rise which causes knocking, when operating conditions vary. Though some HCCI combustion control systems, for example Variable Valve Timing System and Variable Compression Ratio System, have been suggested, these control systems are complex and heavy.

Effect of Degree of Unmixedness on HCCI Combustion Based on Experiment and Numerical Analysis

Jumpei Ozaki, Norimasa Iida

2006 SETC (Small Engine Technology Conference & Exposition), November 2006, San Antonio, TX, USA, (San Antonio, Texas) , 

2006.11

, 

Oral presentation (general), SAE

　View Summary

The purpose of this study was to gain a better understanding of the effects of in-cylinder gas temperature stratification on reducing the pressure-rise rate in HCCI combustion. HCCI combustion was investigated using an optically accessible engine and direct visualization of the combustion chemiluminescence. The engine was fueled with Di-Methyl Ether. Computational work was conducted on the gas compression and expansion strokes in HCCI engine with simple 0-dimensinal multi-zones model.

Consideration about Knocking Intensity of HCCI Engine and Knocking Avoidance Method

Kanae Yoshida

第2回埼玉ブロック大会 (大宮) , 

2006.11

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Oral presentation (general), 日本機械学会関東支部埼玉ブロック

The investigation about the Effects of Thermal Stratification in Combustion Chamber on HCCI Combustion Fueled with DME/n-Butane Using Rapid Compression Machine

Hiroaki Nakano, Lim Ockteck, Iida Norimasa

3rd Asian DME Conference (Jung-Seok Memorial Library in Inha University, Incheon, Korea) , 

2006.10

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Oral presentation (general), Korea DME Forum

The Development of Combustion Control system in Small and Light HCCI Engine Fuelled with DME

Yoshihiko Kanoto, Tetsuo Ohmura, Norimasa Iida

3rd Asian DME Conference (Jung-Seok Memorial Library in Inha University, Incheon, Korea) , 

2006.10

, 

Oral presentation (general), Korea DME Forum

An Investigation about the Effect of Fuel Stratification on DME HCCI Combustion by Chemiluminescence Imaging.

Nangaoka Daisei, Iida Norimasa

3rd Asian DME Conference (Jung-Seok Memorial Library in Inha University, Incheon, Korea) , 

2006.10

, 

Oral presentation (general), Korea DME Forum

Influence of the Fuel Compositions on the Homogeneous Charge Compression Ignition Combustion

Susumu Sato, Daisuke Yamashita, Norimasa Iida

2006 SAE Powertrain & Fluid Systems Conference and Exhibition (Toronto, Canada) , 

2006.10

, 

Oral presentation (general), SAE

A Study about the Effect of Thermal Stratification on DME/n-Butane HCCI Combustion Conducted on Rapid Compression Machine

Hiroaki Nakano

自動車技術会2006年秋季学術講演会 (札幌コンベンションセンター) , 

2006.09

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Oral presentation (general), (社)自動車技術会