Experimental and Numerical Study of HCCI Combustion using Cooled EGR Nihon University Graduate School

Format:

Book

Conference/Event

Author/Creator:

Matsuishi, Munehiro, author.

Contributor:

Abe, Yasuhide

Higuchi, Yuya

Iijima, Akira

Ishizawa, Yuma

Kojima, Hiraku

Misawa, Kazuhito

Nakama, Kenjiro

Shoji, Hideo

Conference Name:

JSAE/SAE 2015 Small Engine Technologies Conference & Exhibition (2015-11-17 : Osaka, Japan)

Language:

English

Physical Description:

1 online resource cm

Place of Publication:

Tokyo, JAPAN Society of Automotive Engineers of Japan 2015

Summary:

Unresolved issues of Homogeneous Charge Compression Ignition (HCCI) combustion include an extremely rapid pressure rise on the high load side and resultant knocking. Studies conducted to date have examined ways of expanding the region of stable HCCI combustion on the high load side such as by applying supercharging or recirculating exhaust gas (EGR). However, the effect of applying EGR gas to supercharged HCCI combustion and the mechanisms involved are not fully understood.In this study, the effect of EGR gas components on HCCI combustion was investigated by conducting experiments in which external EGR gas was applied to supercharged HCCI combustion and also experiments in which nitrogen (N2) and carbon dioxide (CO2) were individually injected into the intake air pipe to simulate EGR gas components. In addition, HCCI combustion reactions were analyzed by conducting chemical kinetic simulations under the same conditions as those of the experiments.The results revealed that the injection of either N2 or CO2 has the effect of retarding and moderating HCCI combustion. It was observed that CO2, which is a three-atom molecule, has an especially strong effect on moderating HCCI combustion compared with the result seen for N2

Notes:

Vendor supplied data

Publisher Number:

2015-32-0770

Access Restriction:

Restricted for use by site license