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柴油機(jī)燃用小桐子油的燃燒過(guò)程三維模擬
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貴州省科學(xué)技術(shù)基金資助項(xiàng)目（黔科合J字\[2008\]2036）;貴州省教育廳自然科學(xué)基金資助項(xiàng)目（黔科教2010064）;江蘇省動(dòng)力機(jī)械清潔能源與應(yīng)用重點(diǎn)實(shí)驗(yàn)室對(duì)外開(kāi)放基金資助項(xiàng)目（QK08001）


3-D Simulation of Combustion Process in a Diesel Engine Fueled with Jatropha curcas Oil
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    摘要:

    小桐子油在常溫下的黏度比柴油大10倍以上，因此研究柴油機(jī)燃用小桐子油的燃燒過(guò)程，對(duì)于小桐子油作為燃料的實(shí)際應(yīng)用有重要的意義。建立了柴油機(jī)三維燃燒模型，對(duì)柴油機(jī)燃用小桐子油的燃燒過(guò)程進(jìn)行了模擬。模擬所得的氣缸壓力與試驗(yàn)測(cè)試結(jié)果較為吻合。通過(guò)三維燃燒模擬對(duì)缸內(nèi)的流場(chǎng)、溫度場(chǎng)及平均溫度的變化進(jìn)行了分析，發(fā)現(xiàn)燃用小桐子油時(shí)柴油機(jī)的噴油時(shí)刻比燃用柴油時(shí)略有提前。燃燒始點(diǎn)較早，預(yù)混燃燒峰值提前，燃燒持續(xù)期較大。

    Abstract:

    A 3-D combustion model considered the characteristics of Jatropha curcas oil was established, the combustion process of diesel engine fueled with Jatropha curcas oil was simulated. Simulation results of the cylinder pressure fitted well with the results of test. The flow field, temperature field, and mean temperature in cylinder were analyzed by the simulation. It is found that the injection timing is advanced when the engine fueled with Jatropha curcas oil. The timing of combustion is advanced, the peak premixed combustion is also advanced, and the combustion duration is longer than the engine fueled with diesel fuel.

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王子玉,程秀圍,梁昱,羅福強(qiáng).柴油機(jī)燃用小桐子油的燃燒過(guò)程三維模擬[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2012,43(3):16-21. Wang Ziyu, Cheng Xiuwei, Liang Yu, Luo Fuqiang.3-D Simulation of Combustion Process in a Diesel Engine Fueled with Jatropha curcas Oil[J]. Transactions of the Chinese Society for Agricultural Machinery,2012,43(3):16-21.

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  • 在線發(fā)布日期: 2012-03-17
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