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汽油/氫發(fā)動(dòng)機(jī)燃燒特性試驗(yàn)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(jìn)行了當(dāng)量比φ=1的汽油機(jī)和當(dāng)量比分別為0.8、0.6、0.4的純氫發(fā)動(dòng)機(jī)臺(tái)架試驗(yàn),。通過對(duì)測得的汽油機(jī)和氫發(fā)動(dòng)機(jī)燃燒缸壓數(shù)據(jù)進(jìn)行標(biāo)定，建立了較為準(zhǔn)確的AVL Boost汽油機(jī)和氫發(fā)動(dòng)機(jī)燃燒仿真模型，并進(jìn)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(dǎo)致缸壓上升,，有效熱效率得到提高。當(dāng)量比為0.4的稀薄工況時(shí)純氫發(fā)動(dòng)機(jī)仍可正常運(yùn)行,，發(fā)動(dòng)機(jī)燃用氫氣可改善發(fā)動(dòng)機(jī)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(jì)常偉,汪碩峰.汽油/氫發(fā)動(dòng)機(jī)燃燒特性試驗(yàn)與仿[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),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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