• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>International journal of green energy >COMBUSTION AND EMISSION CHARACTERISTICS OF A DIESEL ENGINE FUELLED WITH BIODIESEL HAVING VARYING SATURATED FATTY ACID COMPOSITION
【24h】

COMBUSTION AND EMISSION CHARACTERISTICS OF A DIESEL ENGINE FUELLED WITH BIODIESEL HAVING VARYING SATURATED FATTY ACID COMPOSITION

机译：饱和脂肪酸组成变化的生物柴油柴油机的燃烧与排放特性

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The present work is concerned with the performance, emission, and combustion characteristics of vegetable oil esters with varying saturated and unsaturated fatty acid composition tested in a stationary direct injection compression ignition engine. Saturated fatty acids (SFAs) are long-chain carboxylic acids that usually have between 12 and 24 carbon atoms and have no double bonds. Unsaturated fatty acids resemble SFAs, except that the chain has one or more double bonds. SFAs have all the hydrogen that the carbon atom can hold and therefore have no double bond between the carbon atoms. The biodiesels were derived from Pongamia, Ricebran, Sunflower, and Palm oil, respectively. The results show that Pongamia biodiesel gives a higher brake thermal efficiency (33.36% when compared to diesel, which has 32.57%) slightly higher Oxides of Nitrogen [NO_x] and reduced carbon monoxide (CO), unburnt hydrocarbon (VHC), and smoke emissions when compared to diesel and other biodiesels. The cetane number for Pongamia oil, Ricebran oil, Sunflower oil, Palm oil, and diesel are 52, 50, 51, 56, and 48, respectively. The higher cetane number reduces ignition delay and also reduces Nox emissions when compared to other esters that have a greater unsaturated fatty acid composition.
机译：本工作涉及在固定式直接喷射压缩点火发动机中测试的具有变化的饱和和不饱和脂肪酸组成的植物油酯的性能，排放和燃烧特性。饱和脂肪酸（SFA）是通常具有12至24个碳原子且没有双键的长链羧酸。除了链具有一个或多个双键外，不饱和脂肪酸类似于SFA。 SFA具有碳原子可以容纳的所有氢，因此碳原子之间没有双键。这些生物柴油分别来自Pongamia，Ricebran，向日葵和棕榈油。结果表明，Pongamia生物柴油具有更高的制动热效率（与柴油相比，为33.36％，而柴油为32.57％）的氮氧化物[NO_x]略高，并且一氧化碳（CO），未燃烧的碳氢化合物（VHC）和烟气排放减少与柴油和其他生物柴油相比。石榴皮油，稻米油，葵花油，棕榈油和柴油的十六烷值分别为52、50、51、56和48。与具有更大不饱和脂肪酸组成的其他酯相比，较高的十六烷值减少了点火延迟，并减少了NOx排放。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号