单缸柴油发电机燃用柴油掺混乙醇的性能试验研究

发布时间：2018-01-17 02:12

本文关键词：单缸柴油发电机燃用柴油掺混乙醇的性能试验研究　出处：《中国农机化学报》2014年06期 　论文类型：期刊论文

【摘要】：在单缸风冷四冲程柴油发电机上针对95%柴油5%乙醇和90%柴油10%乙醇的掺混燃料进行了试验,测试并分析了经济性,NOX、HC和CO排放性能。结果发现,掺混10%的乙醇,油耗略高,发电机工作稳定性较差,除在中负荷范围内NOX排放、在中高负荷HC排放低于柴油外,NOX、HC和CO排放均高于柴油;掺混5%的乙醇,可以有效降低燃油消耗,综合各工况,体积油耗降低约4.6%,有效燃油消耗率降低约5.8%,消耗燃料当量热值降低约7.4%;能在中负荷范围内降低NOX排放,综合各工况,较柴油降低约5.6%;对降低HC排放作用明显,综合各工况,较柴油降低约46.5%;对于减小CO排放不利,综合各工况,较柴油增大约10.7%;尾气中O2和CO2排放体积分数比在低负荷时要高于柴油,在中高负荷与柴油差别较小,动力性能与燃用柴油相当。
[Abstract]:The mixed fuel of 95% diesel 5% ethanol and 90% diesel 10% ethanol was tested on a single-cylinder air-cooled four-stroke diesel generator. The economic performance of no _ x was tested and analyzed. HC and CO emission performance. The results show that the fuel consumption of the mixed 10% ethanol is slightly higher, and the stability of the generator is poor. Except for the NOX emission in the middle load range, the HC emission at the middle and high load is lower than that of diesel oil. The emission of NOXC HC and CO was higher than that of diesel oil. Blending with 5% ethanol can effectively reduce fuel consumption. In all working conditions, the volume fuel consumption is reduced by about 4.6 percent, the effective fuel consumption rate is reduced by about 5.8 percent, and the equivalent heat value of consumed fuel is reduced by about 7.4 percent. The NOX emission can be reduced in the range of medium load, and it is about 5.6 lower than that of diesel fuel under various working conditions. It has obvious effect on reducing HC emission, and it is about 46.5% lower than diesel fuel in all working conditions. For reducing CO emissions, the amount of CO emission increased by 10.7% compared with diesel fuel. The volume fraction of O2 and CO2 in tail gas is higher than that of diesel at low load, but the difference between diesel and middle high load is small, and the power performance is equivalent to that of diesel.
【作者单位】：贵阳学院机械工程学院;三一汽车起重机械有限公司;
【基金】：贵阳市科技计划项目(筑科合同2012101号)
【分类号】：TM314
【正文快照】： 梁昱,何先卫,周立迎,王静,冯育军,周海涛.单缸柴油发电机燃用柴油掺混乙醇的性能试验研究[J].中国农机化学报,2014,35(6):166~170Liang Yu,He Xianwei,Zhou Liying,Wang Jing,Feng Yujun,Zhou Haitao.Experimental study on performance of single cylinder diesel generatorf

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