首页|Experimental Study on the Performance and Emission of Chinese Small Agricultural Diesel Engine Fuelled with Methanol/Biodiesel/DTBP
Experimental Study on the Performance and Emission of Chinese Small Agricultural Diesel Engine Fuelled with Methanol/Biodiesel/DTBP
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国家科技期刊平台
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Diesel engine alternative fuels, such as methanol and biodiesel, are beneficial to reduce diesel engine emission. In order to study the influence of methanol and biodiesel on the performance, economy and emission of small agricultural diesel engine, the physical-chemical properties ( cetane number, lower heat value (LHV), viscosity, etc.) of methanol and biodiesel were analyzed. The methanol and biodiesel showed good complementary property to some extent. When a large proportion of methanol was added into biodiesel, the cetane number of the methanol/biodiesel blend will be greatly reduced. Since the cetane number of the blend fuel has great influence on the combustion process of diesel engine, after testing for blending ratio of methanol/biodiesel, the blend was prepared with 5％( BM5) , 10％( BM10) and 15％( BM15) methanol, respectively. Di-Tert-Butyl Peroxide ( DTBP ) was chosen as a cetane number improver to be added into methanol/biodiesel blend. 0.25％, 0.50％ and 0.75％ of DTBP was added into BM15. The bench test was carried out on a 186FA diesel engine to study the effect of methanol and DTBP on the engine performance and emissions. The results show that, at rated condition, compared with biodiesel, the NOx concentration of BM5, BM10 and BM15 is reduced by 5. 02％, 33. 85％ and 21.24％, and smoke is reduced by 5.56％, 22.22％ and 55.56％. However, the engine power is also reduced by 5.77％, 14.23％ and 25.41％, and the brake specific energy consumption is increased by 3.31％, 7.78％ and 6.37％. The addition of DTBP in methanol/biodiesel could recover the engine power to the level of diesel. DTBP shows good effect on the reduction of the brake specific energy consumption and NOx , CO, HC concentration, but a little increase of exhaust smoke.
Ruina Li、Liang Zhang、Jialong Zhu、Yan Hua、Zhong Wang
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School of Automotive and Traffic Engineering,Jiangsu University,Zhenjiang 212013,Jiangsu,China
Vehicle Measurement,Control and Safety Key Laboratory of Sichuan Province,Chengdu 610039,China
Provincial Engineering Research Center for New Energy Vehicle Intelligent Control and Simulation Test Technology of Sichuan,Chengdu 610039,China
Open Project of State Key Laboratory of Internal Combustion Engine Combustion,Tianjin UniversityProject of Natural Science Foundation of Jiangsu ProvinceNatural Science Research Projects in Jiangsu Higher Education InstitutionsProvincial Engineering Research Center for New Energy Vehicle Intelligent Control and Simulation Test Technology of Sichuan
国家科技期刊平台
NSTL
万方数据
维普
