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Combustion and emission characteristics of blended fuel of biodiesel and methanol for diesel engine(PDF)

长安大学学报（自然科学版）[ISSN:1006-6977/CN:61-1281/TN]

Issue:
2012年05期
Page:
97-101
Research Field:
Publishing date:

Info

Title:
Combustion and emission characteristics of blended fuel of biodiesel and methanol for diesel engine
Author(s):
YUAN Hua-zhi1; 2;  ZHU Ming3;  LI Yang-yang1;  LI Ya-peng1;  ZHAO Fu-lei1
1. School of Automobile, Chang'an University, Xi'an 710064, Shaanxi, China; 2. Magazines Company, Chang'an University, Xi'an 710064, Shaanxi, China; 3. Xiamen Golden Dragon Bus Co Ltd, Xiamen 361026, Fujian, China
Keywords:
automotive engineering;  biodiesel;  methanol;  blended fuel;  combustion characteristic;  emission characteristic
PACS:
U473.1
DOI:
-
Abstract:
10 mL methanol, 20 mL methanol and 12 mL oleic were added into 100 mL biodiesel(M0 fuel)respectively, and M10 and M20micro-emulsified fuels were developed after processing. Based on the bench experiment and emission analysis, when the engine speed was 1 500 r/min and the average effective pressures were 0.088 9, 0.177 0, 0.266 0, 0.354 0, 0.443 0 and 0.5310 MPa respectively, the experiments for combustion and emission characteristics of those three fuels were carried out. Experiment results show that compared with M0, the combustion delay periods of M10 and M20 are longer, the combustion durations are shorter, and the maximum combustion delay periods of those three fuels are 6°, 7° and 8° respectively. The peak pressures, the increasing rates of peak pressures and the exothermic rates of peak combustions for M10 and M20 increase, the maximum increasing rates of peak pressures for those three fuels are 1.236, 1.377 and 1.280 MPa/(°)respectively, and the maximum exothermic rates of peak combustions for those three fuels are 0.280, 0.281 and 0.297 kJ/(°)respectively. The HC emissions, CO emissions, smoke intensity emissions of M10 and M20 decrease, but there are no significant change of the NOx emissions of M10 and M20. 4 tabs, 5 figs, 14 refs.

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Last Update: 2012-10-30