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汽油/氫發(fā)動機燃燒特性試驗與仿
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and Simulation on Combustion Characteristics of a Four Cylinder SI Engine Fueled with Hydrogen and Gasoline
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    摘要:

    進行了當量比φ=1的汽油機和當量比分別為0.8、0.6,、0.4的純氫發(fā)動機臺架試驗,。通過對測得的汽油機和氫發(fā)動機燃燒缸壓數(shù)據(jù)進行標定,，建立了較為準確的AVL Boost汽油機和氫發(fā)動機燃燒仿真模型,，并進行了仿真,。結(jié)果表明,，氫燃料的特性使得缸內(nèi)混合氣的燃燒速度顯著加快,，燃燒持續(xù)期大幅縮短,，導致缸壓上升,，有效熱效率得到提高。當量比為0.4的稀薄工況時純氫發(fā)動機仍可正常運行,，發(fā)動機燃用氫氣可改善發(fā)動機性能,。

    Abstract:

    SI engine experiments were carried out by using hydrogen at equivalent ratio of 0.8, 0.6, and 0.4 and by using gasoline at stoichiometric condition, respectively. Simulation models for gasoline and hydrogen were built based on AVL Boost and calibrated experimentally. The simulation study shows that hydrogen can increase burning rate of hydrogen-air mixture, and shorten combustion duration markedly. As a result, cylinder pressure and thermal efficiency increase accordingly. Hydrogen engine can operate at the equivalence ratio of near 0.4 smoothly and the performance of SI engine is greatly improved. 

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閆皓,紀常偉,汪碩峰.汽油/氫發(fā)動機燃燒特性試驗與仿[J].農(nóng)業(yè)機械學報,2009,40(6):6-9. and Simulation on Combustion Characteristics of a Four Cylinder SI Engine Fueled with Hydrogen and Gasoline[J]. Transactions of the Chinese Society for Agricultural Machinery,2009,40(6):6-9.

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