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首页> 外文期刊>Heat Transfer Engineering >Design of Plate-Fin Tube Dehumidifiers for Humidification-Dehumidification Desalination Systems
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Design of Plate-Fin Tube Dehumidifiers for Humidification-Dehumidification Desalination Systems

机译:用于加湿除湿淡化系统的板翅管除湿机的设计

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摘要

A two-dimensional numerical model of a plate-fin tube heat exchanger for use as a dehumidifier in humidification-dehumidification (HDH) desalination systems is developed, because typical heating, ventilating, and air conditioning (HVAC) dehumidifier models and plate-fin tube dehumidifier geometries are not intended for the considerably higher temperature and humidity ratio differences that drive heat and mass transfer in HDH desalination applications. The experimentally validated model is used to investigate the influence of various heat exchanger design parameters. Potential improvements on common plate-fin tube dehumidifier designs are identified by examining various methods of optimizing tube diameter and longitudinal and transverse tube spacing to achieve maximum heat flow for a given quantity of fin material at a typical HDH operating point. Thicker fins are recommended than for HVAC geometries, as the thermal conductive resistance of HVAC fins restricts dehumidifier performance under HDH operating conditions.
机译:由于典型的加热,通风和空调(HVAC)除湿器模型和板翅管,因此开发了在加湿-除湿(HDH)脱盐系统中用作除湿机的板翅管热交换器的二维数值模型。除湿机的几何形状不适用于较高的温度和湿度比差异,从而在HDH脱盐应用中驱动传热和传质。经过实验验证的模型用于研究各种热交换器设计参数的影响。通过检查各种优化管径,纵向和横向管间距以在给定数量的翅片材料上达到最大热流量的方法,可以确定常见的板翅管除湿器设计的潜在改进。建议使用比HVAC几何形状更厚的散热片,因为HVAC散热片的导热性会限制HDH操作条件下的除湿器性能。

著录项

  • 来源
    《Heat Transfer Engineering》 |2015年第4期|223-243|共21页
  • 作者单位

    Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA,MAHLE Behr GmbH & Co. KG, Stuttgart, Germany;

    Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139-4307, USA;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
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