废弃油脂生物柴油掺水微乳化燃料的燃烧与排放  

Combustion and emission of micro-emulsion waste oil biodiesel mixed with water

作　　者：马志义[1] 陈昊[1] 宋俊良[1] 赵福磊[1] 

机构地区：[1]长安大学汽车学院,陕西省交通新能源开发,应用与汽车节能重点实验室,西安710064

出　　处：《江西理工大学学报》2012年第5期6-10,共5页Journal of Jiangxi University of Science and Technology

基　　金：中央高校基本科研业务费专项资金(CHD2010JC095);长安大学基础研究支持计划专项基金

摘　　要：为了研究添水量对生物柴油燃烧与排放的影响,在一台两缸直喷式柴油机上对不同掺水量废弃油脂生物柴油的燃烧与排放特性进行了对比试验研究.研究结果表明:随着掺水量的增加,峰值燃烧压力增加;CO与HC略有增加,但它们排放绝对值很低且不是柴油机的主要排放污染物;NOx排放明显降低;小负荷时碳烟排放增加,大负荷时碳烟排放明显降低;排气温度明显降低;比油耗略有增加.研究结果证明:柴油机使用掺水微乳化燃料,可以改善燃烧状况,控制主要排放污染物.To study the influence of water content on the combustion and emissions of biodiesel, combustion and emission, fuels of different water contents are compared in a two cylinder direct injection diesel engine. Results show that, with the increase of water content, peak burning pressure increases; CO and HC increases slightly, but the emission absolute value is very low and it is not the main pollutants of diesel engine; NOx emissions decrease significantly; smoke emission increases at small load, while smoke emission decreases significantly at large load; emission temperature reduces significantly; specific fuel consumption increases slightly. Results show that when diesel engines employs micro-emulsions fuel mixed with water, the combustion can be improved and the main emissions can be controlled.

关 键 词：掺水量 生物柴油 微乳化 燃烧 排放 

分 类 号：U464.172[机械工程—车辆工程] TE626.24[交通运输工程—载运工具运用工程]