| 生物柴油掺烧率对非道路用柴油机燃烧循环变动特性的影响 |
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| 引用本文： | 汤东,沈飞,刘胜吉,尹必峰.生物柴油掺烧率对非道路用柴油机燃烧循环变动特性的影响[J].内燃机工程,2009,30(5). |
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| 作者姓名： | 汤东 沈飞 刘胜吉 尹必峰 |
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| 作者单位： | 江苏大学,汽车与交通工程学院,镇江,212013 |
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| 基金项目： | 国家"八六三"高技术研究发展计划资助项目，内燃机燃烧学国家重点实验室开放基金资助项目，江苏大学高级人才科研基金资助项目 |
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| 摘 要： | 针对非道路用186FA柴油机掺烧生物柴油燃烧循环变动情况,进行了燃用不同生物柴油掺烧率的试验.根据实测示功图对主要燃烧参数进行了循环变动分析.结果表明:随着生物柴油的掺烧,燃烧始点提前,放热率峰值减小;平均指示压力(pmi)、缸内压力峰值(pmax)、放热率峰值循环变动系数(COV)呈减小的趋势,而其对应相位波动比纯柴油大;最大压力升高率在中低负荷时循环变动显著;平均指示压力与缸内压力峰值和放热率峰值都有很好的对应关系.
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| 关 键 词： | 内燃机 非道路用柴油机 生物柴油 燃烧 循环变动 |
Effect of Bio-Diesel Fraction on Cycle-by-Cycle Variations of an Off-Road Diesel Engine |
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| TANG Dong,SHEN Fei,LIU Sheng-ji,YIN Bi-feng.Effect of Bio-Diesel Fraction on Cycle-by-Cycle Variations of an Off-Road Diesel Engine[J].Chinese Internal Combustion Engine Engineering,2009,30(5). |
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| Authors: | TANG Dong SHEN Fei LIU Sheng-ji YIN Bi-feng |
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| Affiliation: | TANG Dong,SHEN Fei,LIU Sheng-ji,YIN Bi-feng(School of Automotive and Traffic Engineering,Jiangsu University,Zhenjiang 212013,China) |
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| Abstract: | To investigate the cycle-by-cycle variations of a 186FA off-road diesel engine fueled with bio-diesel,engine tests were conducted using different fraction of bio-diesel.Cycle-by-cycle variations of main combustion parameters were analyzed according to the cylinder pressures of 100 combustion cycles.The results show that with the increase of bio-diesel fraction,the combustion beginning is advanced and the peak heat release rate is decreased;the coefficient of variations(COV) of the indicated mean effective p... |
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| Keywords: | IC engine off-road diesel engine bio-diesel combustion cycle-by-cycle variation |
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