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柴油機燃用小桐子油的燃燒過程三維模擬
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貴州省科學技術(shù)基金資助項目(黔科合J字\[2008\]2036);貴州省教育廳自然科學基金資助項目(黔科教2010064);江蘇省動力機械清潔能源與應用重點實驗室對外開放基金資助項目(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,,因此研究柴油機燃用小桐子油的燃燒過程,,對于小桐子油作為燃料的實際應用有重要的意義,。建立了柴油機三維燃燒模型,,對柴油機燃用小桐子油的燃燒過程進行了模擬。模擬所得的氣缸壓力與試驗測試結(jié)果較為吻合。通過三維燃燒模擬對缸內(nèi)的流場、溫度場及平均溫度的變化進行了分析,發(fā)現(xiàn)燃用小桐子油時柴油機的噴油時刻比燃用柴油時略有提前,。燃燒始點較早,預混燃燒峰值提前,,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.柴油機燃用小桐子油的燃燒過程三維模擬[J].農(nóng)業(yè)機械學報,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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