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首页> 外文期刊>Energy Conversion & Management >Dehumidification effects in the superheated region (SPR) of a direct expansion (DX) air cooling coil
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Dehumidification effects in the superheated region (SPR) of a direct expansion (DX) air cooling coil

机译：直接膨胀（DX）空气冷却盘管的过热区域（SPR）中的除湿效果

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摘要

A DX air cooling coil may normally be assumed to have two regions in its refrigerant side, according to refrigerant status, a two-phase region (TPR) and a superheated region (SPR). Dry air side surface of the SPR in a DX air cooling coil has been normally assumed in lumped-parameter mathematical models previously developed without however being validated. Therefore, an experimental study has been carried out to examine such an assumption under different operating conditions. The experimental results suggested that the air side surface of the SPR in a DX air cooling coil was either fully or partially wet under all experimental conditions and assuming dry air side of the SPR could lead to an underestimated total amount of water vapor condensed on the entire DX coil surface. Therefore, it is recommended that the assumption of dry air side in a SPR be no longer used in future lumped-parameter models to be developed for improved modeling accuracy.
机译：通常，根据制冷剂状态，可以假定DX空气冷却盘管在其制冷剂侧具有两个区域，即两相区域（TPR）和过热区域（SPR）。 DX空气冷却盘管中SPR的干燥空气侧面通常在先前开发的集总参数数学模型中被假定，但是未经验证。因此，已经进行了实验研究以检验在不同操作条件下的这种假设。实验结果表明，在所有实验条件下，DX空气冷却盘管中SPR的空气侧表面全部或部分润湿，并且假设SPR的干燥空气侧可能导致整个冷凝的水蒸气总量被低估DX线圈表面。因此，建议在以后的集总参数模型中不再使用SPR中干燥空气侧的假设，以提高建模精度。

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  • 来源
    《Energy Conversion & Management》 |2009年第12期|3063-3070|共8页
  • 作者

    Xia Liang; Ming-Yin Chan; Deng Shiming; Xu Xiangguo;

  • 作者单位

    Department of Building Services Engineering The Hong Kong Polytechnic University, Kowloon, Hong Kong SAR, China;

    Department of Building Services Engineering The Hong Kong Polytechnic University, Kowloon, Hong Kong SAR, China;

    Department of Building Services Engineering The Hong Kong Polytechnic University, Kowloon, Hong Kong SAR, China;

    Department of Building Services Engineering The Hong Kong Polytechnic University, Kowloon, Hong Kong SAR, 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

    superheated region; dehumidification effect; DX air cooling coil; air conditioning;

    机译：过热区域除湿效果DX风冷盘管;空调;

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