CLZ微乳化乙醇柴油混合燃料的发动机性能研究  

Study on Engine Performance with CLZ Micro-Emulsified Ethanol-Diesel Blends

作　　者：陈泓[1] 颜文胜[1] 申立中[1] 叶燕帅[1] 雷基林[1] 毕玉华[1] 

机构地区：[1]昆明理工大学交通工程学院,昆明650224

出　　处：《内燃机工程》2011年第2期74-79,共6页Chinese Internal Combustion Engine Engineering

基　　金：国家自然科学基金资助项目(50766001)

摘　　要：基于亲油-亲水平衡(HLB值)理论和乳化原理,研究了单试剂和复合试剂作为乳化剂对乙醇柴油混合燃料体系的乳化效果和稳定性的影响,开发了一种以生物油、蓖麻油以及其他几种单试剂复配而成的CLZ复配型乳化剂,结果表明:CLZ复配型乳化剂较好地解决了E10乙醇柴油体系在较宽广温度范围内的物理稳定性问题,对E15乙醇柴油混合体系有较强的乳化能力,能使乙醇柴油混合燃料长期保持良好的物理稳定性。通过试验对比研究了乙醇柴油燃料对柴油机性能的影响,结果表明:燃用乙醇柴油混合燃料后,当量燃油消耗率降低,有效热效率提高,CO排放量低负荷时升高、高负荷时下降;NOx排放量略低于燃用纯柴油水平;THC排放量高于燃用纯柴油水平,碳烟排放量相比纯柴油大幅度下降。According to Hydrophile-Lipophile Balance（HLB） theory and emulsification principles,the effects of single reagent and compound reagents as emulsifier on stability and emulsifying efficiency of ethanol-diesel blend fuel were studied,and CLZ compound emulsifier which was composed of biological oil,castor oil and other reagents was developed.The results indicate that the CLZ compound emulsifier has basically solved out the stability of E10 system at wide temperature range,also having strong emulsifying effects for E15 system,and can make the ethanol-diesel blend keep physical stability over a long period.Performances of Model 2D25 diesel engine fueled with respectively pure diesel and ethanol-diesel blends were compared.The results show that when fueled with ethanol-diesel blends,engine equivalent fuel consumption lowers and effective thermal efficiency increases;CO emission increases in low load range but declines in high load range;NOx emissions lower a little and THC emission rises than pure diesel,only the PM emission declines greatly.

关 键 词：内燃机 乙醇柴油 乳化剂 稳定性 性能 

分 类 号：TK428.9[动力工程及工程热物理—动力机械及工程]