Paper Title:
Investigation on the Combustion and Emission Characteristic of Diesel Engine with EGR
  Abstract

Based on a diesel engine with common rail system, influence of EGR on combustion and emission characteristic were investigated. The test results show that EGR can cut down both cylinder pressure and the rate of pressure rise, which leads to the depression of instantaneous rate of heat release and combustion temperature and the extension of the whole combustion period.EGR make effective improvements on reducing NOx emissions in all the operating modes. In light load condition CO and HC emissions take a favorable turn with larger EGR rate, SOOT and fuel consumption are well maintained. In moderate and heavy load condition, the curve of HC ,CO emissions assume “hook-like”, which is get down first and then steep rise. SOOT is well maintained before the inflection point but get deteriorate after the point. As the working load rate of the engine become heavier, the rate of EGR whose inflection point located becomes smaller and the fuel consumption turn out to be worse.

  Info
Periodical
Edited by
Long Chen, Yongkang Zhang, Aixing Feng, Zhenying Xu, Boquan Li and Han Shen
Pages
668-671
DOI
10.4028/www.scientific.net/KEM.464.668
Citation
B. F. Yin, Z. W. Xu, J. G. He, Y. Xu, Y. Q. Li, "Investigation on the Combustion and Emission Characteristic of Diesel Engine with EGR", Key Engineering Materials, Vol. 464, pp. 668-671, 2011
Online since
January 2011
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Price
$32.00
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