Effect of Injection Timing on Performance and Emissions of DI-diesel Engine Fueled with Isopropanol

DOI

10.2991/iceem-15.2015.33How to use a DOI?

Keywords

injection timing; diesel engine; isopropanol; combustion; emissions

Abstract

Experimental study was conducted to investigate the influence of the injection timing on the performance and exhaust emissions of an electronic control high-pressure common rail turbocharged direct injection diesel engine fueled with isopropanol. Diesel fuels with different amounts (0%, 5%, 10%, 15% and 20% by volume) of isopropanol were used. The results show that the isopropanol addition can significantly improve soot and CO emissions. Under the same injection timing, with the increase of isopropanol blending ratio, combustion duration shortened, brake specific fuel consumption increased, the peak of in-cylinder pressure and heat release rate of pilot-injection combustion decreased, the peak of in-cylinder pressure and heat release rate of main-injection combustion increased, THC and NOx emissions increased. With the injection timing retarded, the center of heat release rate of pilot and main injection combustion delayed, the peak of in-cylinder pressure and heat release rate of former ascended, the latter descended. Brake specific fuel consumption, CO emission, THC emission and soot emission reduced, NOx emissions increased.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Yibin Liu
AU  - Bin Xu
AU  - Jianhao Jia
AU  - Jian Wu
AU  - Weiwei Shang
AU  - Zhihao Ma
PY  - 2015/12
DA  - 2015/12
TI  - Effect of Injection Timing on Performance and Emissions of DI-diesel Engine Fueled with Isopropanol
BT  - Proceedings of the 2015 International Conference on Electrical, Electronics and Mechatronics
PB  - Atlantis Press
SP  - 133
EP  - 137
SN  - 2352-5401
UR  - https://doi.org/10.2991/iceem-15.2015.33
DO  - 10.2991/iceem-15.2015.33
ID  - Liu2015/12
ER  -