Influence of Combustion Process on the Carbonyl Emission of Diesel Engine

DOI

10.2991/isesce-15.2015.11How to use a DOI?

Keywords

Diesel engine; Combustion process; Carbonyl; Emission

Abstract

The bench test of diesel engine is conducted fueled with biodiesel, diesel and blending fuel, the changes of cylinder pressure with crank angle is also measured, combined with the measurement results of carbonyl emissions, the theoretical relationship between combustion process and carbonyl formation is analyzed. The results show that, combustion intermediates such as C7, C5, CO and C2H2 are produced in the fuel oxidation process during the premixed combustion phase. The diffusion combustion period extend with the increase of load, and it is the main stage of re-oxidation and decomposition for the intermediate products, the cylinder temperature and pressure increase with the increase of load, while the ignition delay period is shortened, the probability of oxidation and conversion for carbonyl pollutants improve because of the extended residence time in the high-temperature and high pressure region, the high exhaust temperature in high load is conducive to the re-oxidation of carbonyl emission.

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/).

Download article (PDF)

TY  - CONF
AU  - Guangju Xu
AU  - Ren He
AU  - Bing Liu
PY  - 2015/12
DA  - 2015/12
TI  - Influence of Combustion Process on the Carbonyl Emission of Diesel Engine
BT  - Proceedings of the 2015 International Symposium on Energy Science and Chemical Engineering
PB  - Atlantis Press
SP  - 55
EP  - 58
SN  - 2352-5401
UR  - https://doi.org/10.2991/isesce-15.2015.11
DO  - 10.2991/isesce-15.2015.11
ID  - Xu2015/12
ER  -