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Analysis of exhaust waste heat recovery techniques from stationary power generation engines using organic rankine cycles.

机译:使用有机朗肯循环分析固定式发电发动机的废热回收技术。

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摘要

Organic rankine cycles (ORC) with turbocompounding harness the waste heat from an internal combustion engine (ICE) to improve efficiency and fuel economy while reducing brake-specific emissions. A mathematical model was developed to explore the potential gains in 1st and 2 nd law efficiencies from a practical and theoretical approach. The two approaches were compared with each other and correlated well. This analysis was conducted for R113, a dry fluid, and propane, a wet fluid, in order to analyze the differences in the two types of fluids. R113 showed a 13%--22% and a 6%--14.7% increase in 1st and 2nd law efficiencies, respectively. Propane showed a 9%--17.4% and a 2%--8.5% increase in 1st and 2nd law efficiencies, respectively. It was also shown that as the pinch point temperature decreases the 2 nd law efficiencies increased. The use of ORC with turbocompounding is an effective manner to improve engine efficiency.
机译:带有涡轮复合材料的有机朗肯循环(ORC)可以利用内燃机(ICE)的废热来提高效率和燃油经济性,同时减少特定于制动器的排放。开发了一个数学模型,以探索从实践和理论方法的第一和第二定律效率的潜在收益。将这两种方法进行了比较并相互关联。为了分析两种类型的流体之间的差异,对干液体R113和湿流体丙烷进行了此分析。 R113在第一和第二法律效率上分别提高了13%-22%和6%-14.7%。丙烷的第一定律和第二定律效率分别提高了9%-17.4%和2%-8.5%。还显示出随着夹点温度降低,第二定律效率增加。 ORC与涡轮复合技术的使用是提高发动机效率的有效方法。

著录项

  • 作者

    Sham, Devin Krishna.;

  • 作者单位

    Mississippi State University.;

  • 授予单位 Mississippi State University.;
  • 学科 Engineering Mechanical.
  • 学位 M.S.
  • 年度 2008
  • 页码 135 p.
  • 总页数 135
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 机械、仪表工业;
  • 关键词

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