Characteristics of performance and emissions in high-speed direct injection diesel engine fueled with diethyl ether/diesel fuel blends
Characteristics of performance and emissions in high-speed direct injection diesel engine fueled with diethyl ether/diesel fuel blends
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DOI：
10.1016/j.energy.2012.04.039
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发表时间：
2012-07
期刊：
影响因子：
9
通讯作者：
D. Rakopoulos;C. D. Rakopoulos;E. G. Giakoumis;A. Dimaratos
中科院分区：
文献类型：
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作者：
D. Rakopoulos;C. D. Rakopoulos;E. G. Giakoumis;A. Dimaratos
对掺混柴油的性能和排放特性进行了试验研究，研究了掺混量分别为8%、16%和24%（体积分数）的柴油的性能和排放特性。二乙醚（DEE），在位于作者实验室的标准、实验性、单缸、四冲程、高速直喷（HSDI）、“Hydra”柴油发动机中。使用每种燃料混合物或纯柴油燃料进行测试，发动机在三种不同负荷下工作。测量油耗、排气烟度以及氮氧化物、一氧化碳和未燃碳氢化合物等受管制气体排放。三种DEE/柴油燃料混合物的性能和废气排放参数与柴油发动机的基线操作的差异，即，当与纯柴油一起工作时，进行了比较。获得了燃烧室和喷油压力图，并对实验获得的气缸压力图进行了放热率分析，揭示了燃烧机制的一些有趣的特征。这些结果和广泛不同的物理和化学性质的DEE对那些柴油燃料被用来帮助解释所观察到的发动机的行为。结果表明，生物质柴油（bio-DEE）是一种很有前途的柴油发动机燃料。
An experimental study is conducted to evaluate the performance and exhaust emissions characteristics of diesel fuel blends with 8%, 16% and 24% (by vol.) diethyl ether (DEE), in a standard, experimental, single-cylinder, four-stroke, high-speed direct injection (HSDI), ‘Hydra’ diesel engine located at the authors' laboratory. The tests are conducted using each of the fuel blends or neat diesel fuel, with the engine working at three different loads. Fuel consumption, exhaust smoke, and regulated gas emissions such as nitrogen oxides, carbon monoxide and unburned hydrocarbons are measured. The differences in the performance and exhaust emission parameters of the three DEE/diesel fuel blends from the baseline operation of the diesel engine, i.e., when working with neat diesel fuel, are compared. Combustion chamber and fuel injection pressure diagrams are obtained, and heat release rate analysis of the experimentally obtained cylinder pressure diagrams is performed, revealing some interesting features of the combustion mechanisms. These results and the widely differing physical and chemical properties of DEE against those for diesel fuel are used to aid the interpretation of the observed engine behavior. It is revealed that this fuel, which can be produced from biomass (bio-DEE), is a promising one for diesel engines.