A Study on Emissions of Small Diesel Engines

Abstract:

Taking a small diesel engine as the prototype, emission researches for its structural features and different uses are carried out. Obvious differences of emissions for the same diesel engine using different test cycles are shown. By analyzing the test result, it has been found that the weighting factor of each mode is only part of the factors for the large differences of the emission values. The contributions of individual modes are used to analyze the mechanism of changing emissions of the diesel engine and it is found that reducing NO_X of the full load for the mobile non-road diesel engine is the key to reach emission standard; for the fixed diesel engine, CO emission must be controlled at the same time. It has been found that it is necessary to take different combustion optimization parameters or measures to reduce the emission of the diesel engine according to the different uses of small diesel engine engines.

• Periodical: Advanced Materials Research (Volumes 805-806)
• Pages: 1812-1816
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.805-806.1812
• Online since: September 2013
• Authors: Xin Kuang, Sheng Ji Liu, Jian Sun, Jian Wang
• Keywords: Emission, Non-Road Compression Ignition Engines, Test Cycle, Weighting Factor

References

[1] ZHOU Longbao，LIU Zhongchang， GAO Zongying etal. Internal Combustion engines [M]. Beijing: China Machine Press, 2010. 8.

[2] Magnus Lindgren，Karine Arrhenius，Gunnar Larsson etal. Analysis of unregulated emissions from an off-road diesel engine during realistic work operations [J] . Atmospheric Environment, 2011 , 45(30): 5394-5398.

DOI: 10.1016/j.atmosenv.2011.06.046

[3] M. Lindgren, P. -A. Hansson. Effects of Transient Conditions on Exhaust Emissions from two Non-road Diesel Engine [J] . Biosystems Engineering, 2004, 87(1): 57-66.

DOI: 10.1016/j.biosystemseng.2003.10.001

[4] YIN Bifeng，Guan Tao，HE Jiangguang etal. Design of mechanical and combustion system for small non-road diesel engine to meet the EPA IV emission regulations [J] . Applied Mechanics and Materials. 2011, 43: 476-479.

DOI: 10.4028/www.scientific.net/amm.43.476

[5] GB8190. 4-2010 Reciprocation internal combustion engines—Exhaust emission measurement— Part 4：Stead-state test cycles for different engine applications [S] . State Environmental Protection Administration. (2010).

DOI: 10.3403/30113198u

[6] GB20891-2007 Limits and measurement methods for exhaust pollutants from diesel engines of non-road mobile machinery(Ⅰ，Ⅱ) [S] . State Environmental Protection Administration. (2007).

[7] GUO Yingnan，Zhang Zhaohe，LIU Zhongchang etal. Emission Contributions of Individual Modes in ECE R49 13-Mode Test Cycle for Heavy-Duty Automotive Diesel Engines[J] . JOURNAL OF JILIN UNIVERSITY OF TECHNOLOGY，1996，83（3）：12-16.

[8] TAN Jianwei, GE Yunshan, LI Wenxiang etal. Research on Relativity of Non-road Diesel Engine and Road Heavy-duty Diesel Engine Emission Standard [J]. Vehicle& Power Technology, 2005, 100（4）：15-18.

[9] XIONG Yonghua，DU Farong. Emission Contributions of Individual Modes in 8- Mode Test Cycle for Heavy- Duty Automotive Diesel Engine[J]. SHANDONG I. E，2004，87（3）：30-32.