The Influence of Ethanol Additives on the Performance and Combustion Characteristics of Diesel Engines

L?Xing-cai; HUANG Zhen; ZHANG Wugao; LI Degang

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The Influence of Ethanol Additives on the Performance and Combustion Characteristics of Diesel Engines

L?Xing-cai #,HUANG Zhen,ZHANG Wugao,LI Degang

Shanghai Jiaotong University

*Correspondence author

#Submitted by

Subject:

Funding: 国家自然科学基金（No.NO.50122166）

Opened online: 2 February 2004

Accepted by: none

Citation: L?Xing-cai,HUANG Zhen,ZHANG Wugao.The Influence of Ethanol Additives on the Performance and Combustion Characteristics of Diesel Engines[OL]. [ 2 February 2004] http://en.paper.edu.cn/en_releasepaper/content/198

he purpose of this paper is to experimentally investigate the engine pollutant emissions and combustion characteristics of a diesel engine fueled with ethanol-diesel blended fuel. The experiments were performed using various proportions of ethanol-diesel blended fuels in a single-cylinder DI diesel engine. The engine performance parameters and emissions were measured, and compared to those using the baseline diesel fuel. In order to gain insight into the combustion characteristics of ethanol-diesel blends, the engine combustion processes for blended fuels and diesel fuel were observed using an Engine Video System (AVL 513). The results show that the brake specific fuel consumption (BSFC) increased at overall engine operating conditions, but it is worth noting that the brake thermal efficiency (BTE) increased by up to 1~2.3% with 10% and 15% ethanol-diesel blended fuels. It is found that the engine fueled with ethanol-diesel blended fuels have higher emissions of THC, and lower

Keywords:Diesel engine; Ethanol-diesel blended fuel; Emission; Combustion visualization; Temperature field;Primary color method

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