• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>RSC Advances >Experimental investigation on the effects of multiple injections and EGR on n-pentanol–biodiesel fuelled RCCI engine
【24h】

Experimental investigation on the effects of multiple injections and EGR on n-pentanol–biodiesel fuelled RCCI engine

机译：多次注射率和EGR对N-戊醇 - 生物柴油燃料RCCI发动机效果的实验研究

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Stringent emissions and fuel economy regulations have necessitated the need to boost the research interest in oxygenated alternate fuels such as n -pentanol and biodiesel under low-temperature combustion strategies due to their renewability and cleaner combustion characteristics. Being higher alcohol, n -pentanol has desirable fuel properties that are comparable to mineral diesel, which enable easy blending of these fuels. In the present study, the Reactivity Controlled Compression Ignition (RCCI) operation in a modified single-cylinder diesel engine operating at the rated speed of 1500 rpm and 50% load was investigated with non-edible karanja oil-based biodiesel–diesel blend with B20 as high reactivity fuel (HRF) and n -pentanol as low reactivity fuel (LRF). The intake temperature was maintained constant at 40 °C, intake pressure was ambient and the LRF was varied from 20% to 50%. The engine's performance with split injection was investigated by sweeping starts of injection (SOI) crank angles and these were optimized at 47°, 27°, and 17° bTDC for SOI 1, SOI 2, and SOI 3 respectively at 400 bar injection pressure. The engine performance characteristics were investigated by introducing 10% to 30% cooled exhaust gas recirculation (EGR) and was optimized at 25%, based on the stable operation of the engine with acceptable ringing intensity and emission. The combined effect of EGR, multiple injections (three), and varying PFI mass fractions was investigated and compared with a single injection of HRF. A simultaneous reduction of 76% smoke and 91.5% NO _( X ) emission was obtained with a marginal increase in CO and HC emissions.
机译：严格的排放和燃料经济规定必须在低温燃烧策略下提高含氧交替燃料的研究兴趣，例如由于其可再生性和清洁燃烧特性，在低温燃烧策略下进行N-戊醇和生物柴油。高级醇，N-戊醇具有可与矿物柴油相当的理想燃料性能，这能够容易地混合这些燃料。在本研究中，用非食用的卡拉南油基生物柴油 - 柴油混合物研究了以1500rpm的额定速度为1500rpm和50％载荷的改进的单缸柴油发动机中的反应性控制压缩点火（Rcci）操作。与B20作为高反应性燃料（HRF）和N-戊醇作为低反应性燃料（LRF）。在40℃下将进气温度保持恒定，进气压力是环境的，并且LRF从20％变化至50％。通过扫描喷射开始（SOI）曲柄角度来研究发动机的性能，并在47°，27°和17°BTDC下分别在400巴里注入压力下进行47°，27°和17°BTDC进行优化。通过引入10％至30％冷却的废气再循环（EGR）来研究发动机性能特性，并基于发动机的稳定运行，以可接受的振铃强度和发射为基础优化25％。研究EGR，多次注射（三）和不同的PFI质量级分的组合效果，并与单一注射HRF进行比较。同时减少76％的烟雾和91.5％NO _（X）发射，在CO和HC排放的边际增加。

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