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汽车安全与节能学报

汽车安全与节能学报 ›› 2010, Vol. 1 ›› Issue (3): 229-234.DOI: 10.3969/j.issn.1674-8484.2010.03.010

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含氧燃料对重型车用柴油机性能的影响

王宪成，孙志新，和穆，何星   

  1. 装甲兵工程学院 机械工程系， 北京 100072
  • 收稿日期:2010-07-29 出版日期:2010-09-20 发布日期:2010-09-20
  • 作者简介:王宪成（1964—），男（汉），辽宁，教授。Email：xianchengw@sina.com
  • 基金资助:

    汽车安全与节能国家重点实验室开放基金项目（KF09091）

Effects of oxygenated fuels on heavy-duty vehicular diesel engine performance

WANG Xiancheng, SUN Zhixin, HE Mu, HE Xing   

  1. Department of Mechanical Engineering, The Academy of Armored Force Engineering, Beijing 100072, China
  • Received:2010-07-29 Online:2010-09-20 Published:2010-09-20

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摘要： 为降低某型装甲车辆柴油机的碳烟排放，通过台架试验研究了掺混不同比例的两种含氧燃料—生物柴油和碳酸二甲酯 (DMC) 对某型装甲车辆柴油机缸内燃烧过程、动力性和碳烟排放的影响。结果表明：混合燃料可以有效降低柴油机的可吸入颗粒物 (PM) 排放，且生物柴油和DMC的比例越大，降烟的效果越显著，但NOx排放增加；掺混生物柴油体积分数为20％、DMC为10%时，发动机外特性扭矩下降约5%。通过调整最大供油量，可使柴油机的功率恢复到原机状态；恢复功率后，发动机的碳烟排放比使用纯柴油的原机降低了54.5%。

关键词: 柴油机, 生物柴油, 碳酸二甲酯（DMC）, 碳烟排放 

Abstract: The effects of biodiesel and dimethyl carbonate (DMC) as oxygenate additives on combustion process power, output  and soot emission were investigated on an engine test bench to reduce the soot emission from a heavy duty diesel engine.  The test results show that the pressure curve in cylinder moves backward and the peak value drops when the proportion of the oxygenate fuel increases. The heat release rate curve moves backward either, but the peak value of the heat release increases. The oxygenated fuels decrease particulate matter (PM) emission. The addition of torque at full load biodiesel and DMC leads to less PM but more NOx emission. The engine drops about 5% with volume fraction 20% of biodiesel and 10% of DMC. After adjustment of the maximum fuel feeding, the power using oxygenate blends may be recovered to original value using pure diesel but the soot emission decreased 54.5%.

Key words: diesel engine, biodiesel, dimethyl carbonate (DMC), soot emission

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