农业工程学报2012，Vol.28Issue(11)：54-60,7.DOI:10.3969/j.issn.1002-6819.2012.11.010
柴油机怠速燃用小桐子油的燃烧噪声及其波动性
Combustion noise and its fluctuation of diesel engine fueled with jatropha curcas oil at idle condition
摘要
Abstract
In order to analyze the combustion noise and the fluctuation of multi-cycle combustion noise at idle condition of the diesel engine using curcas oil, the multi-cycle cylinder pressure at idle condition fueled with diesel, diesel-curcas mix oil, curcas oil and heated curcas oil were collected from a water-cooled four-stroke single cylinder diesel engine. The combustion noise and fluctuation of combustion noise were analyzed by maximum combustion pressure, pressure rising rate, pressure rising acceleration, cylinder pressure spectrum and A sound pressure level. The cylinder pressure spectrum burning diesel was similar to burning diesel-curcas mix oil, and burning curcas oil was similar to burning heated curcas oil. The cylinder pressure was high burning diesel and burning diesel-curcas mix oil. The combustion noise increased with increasing maximum pressure rising rate and with delaying corresponding phase of maximum pressure rising rate at the same condition. The A sound pressure level burning heated curcas oil was about 7 dB lower than burning diesel with 18°CA fuel supply advance angle, and was about 5 dB lower than burning diesel with 21°CA fuel supply advance angle. The fluctuation of the A sound pressure level decreased with the decreasing in cycle variation rate of the maximum combustion pressure rising rate.关键词
柴油机/燃烧/噪声/小油桐油料/怠速工况/A声压级/波动Key words
diesel engine, combustion, noise pollution, curcas oil, idle condition, A sound pressure level, fluctuation分类
能源科技引用本文复制引用
梁昱,周立迎,王子玉,程秀围..柴油机怠速燃用小桐子油的燃烧噪声及其波动性[J].农业工程学报,2012,28(11):54-60,7.基金项目
贵州省教育厅自然科学研究项目(黔科教2010064) （黔科教2010064）
贵州省自然科学基金项目(黔科台J字[2008]2036) （黔科台J字[2008]2036）
