柴油机燃用生物柴油表面辐射噪声测试与研究  

Surface radiating noise testing and research of engine using biodiesel

作　　者：彭益源[1] 沈颖刚[1] 孔德芳[1] 段玉霞[1] 

机构地区：[1]昆明理工大学交通工程学院,云南昆明650224

出　　处：《内燃机车》2009年第2期14-16,共3页Diesel Locomotives

基　　金：国家科技支撑计划项目(2007BAD32B03)资助;云南省中青年学术科技带头人后备人才专项基金资助(2007PY01-07)

摘　　要：采用表面声压级测量法,对发动机分别燃用生物柴油和纯柴油的表面辐射噪声进行了试验研究,结果表明:发动机燃用生物柴油的表面辐射噪声明显低于燃用纯柴油,两者表面辐射噪声频谱变化较小,燃用柴油在1000～1600Hz范围的噪声级略大于生物柴油。In this paper,we adopt the method of surface sound-pressure level measurement,and carry on the experimental investigation of engine's surface radiating noise when using pure biodiesel and standard diesel fuel respectively.The results show that the engine's furface radiating noise on the use of pure biodiesel was significantly lower than using standard diesel fuel,the surface radiating noise spectrum of the two has small change,but the noise level when using standard diesel fuel was a little higher than using biodiesel in the range of 1000 to 1600 Hz.

关 键 词：发动机 噪声 生物柴油 

分 类 号：TK428.9[动力工程及工程热物理—动力机械及工程]