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Received: 2003-11-04

Revision Accepted: 2004-02-12

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Journal of Zhejiang University SCIENCE A 2005 Vol.6 No.4 P.276-282


Multidimensional modeling of Dimethyl Ether (DME) spray combustion in DI diesel engine

Author(s):  WEN Hua, LIU Yong-chang, WEI Ming-rui, ZHANG Yu-sheng

Affiliation(s):  School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan 430074, China

Corresponding email(s):   d00wh@yahoo.com.cn

Key Words:  Dimethyl ether (DME), Diesel engine, Spray combustion

WEN Hua, LIU Yong-chang, WEI Ming-rui, ZHANG Yu-sheng. Multidimensional modeling of Dimethyl Ether (DME) spray combustion in DI diesel engine[J]. Journal of Zhejiang University Science A, 2005, 6(4): 276-282.

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author="WEN Hua, LIU Yong-chang, WEI Ming-rui, ZHANG Yu-sheng",
journal="Journal of Zhejiang University Science A",
publisher="Zhejiang University Press & Springer",

%0 Journal Article
%T Multidimensional modeling of Dimethyl Ether (DME) spray combustion in DI diesel engine
%A WEN Hua
%A LIU Yong-chang
%A WEI Ming-rui
%A ZHANG Yu-sheng
%J Journal of Zhejiang University SCIENCE A
%V 6
%N 4
%P 276-282
%@ 1673-565X
%D 2005
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.2005.A0276

T1 - Multidimensional modeling of Dimethyl Ether (DME) spray combustion in DI diesel engine
A1 - WEN Hua
A1 - LIU Yong-chang
A1 - WEI Ming-rui
A1 - ZHANG Yu-sheng
J0 - Journal of Zhejiang University Science A
VL - 6
IS - 4
SP - 276
EP - 282
%@ 1673-565X
Y1 - 2005
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.2005.A0276

In the present study a modified CFD code KIVA3V was used to simulate the spray combustion in a small DI diesel engine fueled with DME. The improved spray models consider more spray phenomena such as cavitation flow in nozzle hole, jet atomization, droplet second breakup and spray wall interaction. Otherwise, a reduced DME reaction mechanism is implemented in the combustion model, and a new turbulent combustion model-Partial Stirred Reactor (PaSR) model is selected to simulate the spray combustion process, the effects of turbulent mixing on the reaction rate are considered. The results of engine modeling based on those models agreed well with the experimental measurements. Study of temperature fields variation and particle traces in the combustion chamber revealed that the engine combustion system originally used for diesel fuel must be optimized for DME.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article


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