海拨高度对柴油机起动污染物排放的影响

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Abstract A number of starting pollutant emission tests of a high-power, low compression ratio diesel engine at 0, 1000, 2000, 3000, 3750 and 4500m altitude have been carried out respectively. The aim was to research emission characteristics of HC, CO, NO_x and particulate matter from start process of low compress ratio diesel engine at different altitudes. The test results shown that the HC, CO and particulate matter emissions of the tested diesel engine increases with the sea level rise, whereas NO_x emissions decreased. The HC, CO, particulate matter emissions at 4500m were increased by 7.1. 2.6, and 2.1times compared that at 0m, but NO_x decreased by 53.8%. The mass fraction of aggregated particles accounted for 94%~99% of the total particulate matter mass emission during the process of starting the diesel engine under 0~4500m altitude, and the quantity of particulates showed single peak value logarithmic distribution, the peak particle size, as well as the geometric mean particle diameter increases with the rising of altitude.

Key words： pollutant emission altitude start diesel engine

Received: 06 June 2017

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X502

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	Articles by authors
	HU Zhi-yuan
	YU Shu-xiang
	KAN Ze-chao
	CAO Zhi-yi
	LOU Di-ming

Cite this article:

HU Zhi-yuan,YU Shu-xiang,KAN Ze-chao等. Pollutant emission characteristics during start process under different altitude of diesel engine[J]. CHINA ENVIRONMENTAL SCIENCECE, 2018, 38(1): 91-96.

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http://manu36.magtech.com.cn/Jweb_zghjkx/EN/ OR http://manu36.magtech.com.cn/Jweb_zghjkx/EN/Y2018/V38/I1/91

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