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首页> 外文期刊>Energy Conversion & Management >Numerical investigations on thermal performance of double-layer four-channel micro combustors for micro-thermophotovoltaic system
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Numerical investigations on thermal performance of double-layer four-channel micro combustors for micro-thermophotovoltaic system

机译：微型热光电系统双层四通道微燃烧器热性能的数值研究

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摘要

In order to extend the output power of the micro-thermophotovoltaic system, it is necessary to assemble multiple single-channel micro combustors into a multiple-channel micro combustor. As a result, how to assemble multiple single-channel micro combustors into a multiple-channel micro combustor comes to be an interesting issue. In this work, the counterflow combustion concept is used in a double-layer four-channel micro combustor, and three representative double-layer four-channel micro combustors are designed. Extensive numerical investigations are conducted to compare the thermal performance of the three different double-layer four-channel micro combustors under various hydrogen mass flow rates, hydrogen/air equivalence ratios and solid materials. Moreover, the purely counterflow double-layer four-channel micro combustor is compared with the counterflow single-layer double-channel micro combustor in our previous work under various H-2 mass flow rates, hydrogen/air equivalence ratios and solid materials. It is found that the purely counterflow double-layer four-channel micro combustor can keep more uniform wall temperature. And the purely counterflow double-layer four channel micro combustor has better thermal performance compared with that of the counterflow single-layer double-channel micro combustor. Moreover, some critical values are given for keeping the merit of the purely counterflow double-layer four-channel micro combustor.
机译：为了扩展微热光伏系统的输出功率，需要将多个单通道微燃烧器组装成多通道微燃烧器。结果，如何将多个单通道微型燃烧器组装成多通道微型燃烧器成为一个有趣的问题。在这项工作中，将逆流燃烧概念用于双层四通道微型燃烧器，并设计了三个代表性的双层四通道微型燃烧器。进行了广泛的数值研究，以比较三种不同的双层四通道微型燃烧器在各种氢气质量流量，氢气/空气当量比和固体材料下的热性能。此外，在我们以前的工作中，在各种H-2质量流量，氢气/空气当量比和固体材料的情况下，将纯逆流双层四通道微型燃烧器与逆流单层双层通道微型燃烧器进行了比较。发现纯逆流双层四通道微型燃烧器可以保持更均匀的壁温。与逆流单层双通道微燃烧器相比，纯逆流双层四通道微燃烧器具有更好的热性能。而且，给出一些临界值以保持纯逆流双层四通道微型燃烧器的优点。

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  • 来源
    《Energy Conversion & Management》 |2017年第10期|343-355|共13页
  • 作者

    Zuo Wei; Jiaqiang E.; Han Dandan; Jin Yu;

  • 作者单位

    Hunan Univ, State Key Lab Adv Design & Mfg Vehicle Body, Changsha 410082, Hunan, Peoples R China|Coll Mech & Vehicle Engn Hunan Univ, Changsha 410082, Hunan, Peoples R China|Hunan Univ, Inst New Energy & Energy Saving & Emiss Reduct Te, Changsha 410082, Hunan, Peoples R China;

    Hunan Univ, State Key Lab Adv Design & Mfg Vehicle Body, Changsha 410082, Hunan, Peoples R China|Coll Mech & Vehicle Engn Hunan Univ, Changsha 410082, Hunan, Peoples R China|Hunan Univ, Inst New Energy & Energy Saving & Emiss Reduct Te, Changsha 410082, Hunan, Peoples R China;

    Coll Mech & Vehicle Engn Hunan Univ, Changsha 410082, Hunan, Peoples R China;

    Coll Mech & Vehicle Engn Hunan Univ, Changsha 410082, Hunan, Peoples R China;

  • 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

    Micro combustion; Double-layer four-channel; Coflow; Counterflow; Thermal performance;

    机译：微燃烧;双层四通道;同流;逆流;热性能;

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