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首页> 外文期刊>Energy Conversion & Management >Optimum configuration of shell-and-tube heat exchangers for the use in low-temperature organic Rankine cycles
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Optimum configuration of shell-and-tube heat exchangers for the use in low-temperature organic Rankine cycles

机译：用于低温有机朗肯循环的管壳式热交换器的最佳配置

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摘要

In this paper, a first step towards a system optimization of organic Rankine cycles (ORCs) is taken by optimizing the cycle parameters together with the configuration of shell-and-tube heat exchangers. In this way every heat exchanger has the optimum allocation of heat-exchanger surface, pressure drop and pinch-point-temperature difference for the given boundary conditions. Different tube configurations are investigated in this paper. It is concluded that the 30°-tube configurations should be used for the single-phase heat exchangers and the 60°-tube configuration for-the two-phase heat exchangers. The performance of subcritical cycles can be strongly improved by adding a second pressure level. Recuperated cycles are only useful when the temperature of the heat source after the ORC should be relatively high.
机译：在本文中，通过优化循环参数以及管壳式换热器的配置，朝着有机朗肯循环（ORC）的系统优化迈出了第一步。这样，对于给定的边界条件，每个热交换器都具有最佳的热交换器表面分配，压降和夹点温度差。本文研究了不同的管配置。结论是，单相热交换器应使用30°管结构，两相热交换器应使用60°管结构。通过添加第二压力水平，可以大大改善亚临界循环的性能。再生循环仅在ORC之后的热源温度应相对较高时才有用。

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  • 来源
    《Energy Conversion & Management》 |2014年第7期|177-187|共11页
  • 作者

    Danieel Walraven; Ben Laenen; William Dhaeseleer;

  • 作者单位

    University of Leuven (KU Leuven) Energy Institute - TME Branch (Applied Mechanics and Energy Conversion), Celestijnenlaan 300A Box 2421, B-3001 Leuven, Belgium ,EnergyVille (Joint Venture of VITO and KU Leuven), Dennenstraat 7, B-3600 Cenk, Belgium;

    Flemish Institute for Technological Research (VITO), Boeretang 200, B-2400 Mol, Belgium ,EnergyVille (Joint Venture of VITO and KU Leuven), Dennenstraat 7, B-3600 Cenk, Belgium;

    University of Leuven (KU Leuven) Energy Institute - TME Branch (Applied Mechanics and Energy Conversion), Celestijnenlaan 300A Box 2421, B-3001 Leuven, Belgium ,EnergyVille (Joint Venture of VITO and KU Leuven), Dennenstraat 7, B-3600 Cenk, Belgium;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    ORC; Shell-and-tube heat exchanger; System optimization;

    机译：ORC;壳管式热交换器;系统优化;

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