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<p>Optimization of heat and mass transfer between humid air and water can significantly enhance the performance of HVAC sys-tems and equipment. Based on entransy theory, this study examines how entransy dissipation varies in moist air and water un-der isothermal and isenthalpic conditions within a vertical spray chamber. An entransy dissipation coefficient, X, is defined to quantify the irreversibility of the heat and mass transfer process. The results reveal that for a given heat exchange between moist air and water, when the inlet moist air is near saturation the system achieves minimal entransy dissipation, reduced mois-ture-based thermal resistance (TRMED), and a lower X value, indicating that the overall heat and mass transfer losses are nearly minimized.</p>

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Optimization of heat and mass transfer process between humid air and water based on entransy theory

  • 期刊论文

  • 发表日期：

    2025年5月3日

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  • Yu Zhai,
  • Xu Zhao

摘要

Optimization of heat and mass transfer between humid air and water can significantly enhance the performance of HVAC sys-tems and equipment. Based on entransy theory, this study examines how entransy dissipation varies in moist air and water un-der isothermal and isenthalpic conditions within a vertical spray chamber. An entransy dissipation coefficient, X, is defined to quantify the irreversibility of the heat and mass transfer process. The results reveal that for a given heat exchange between moist air and water, when the inlet moist air is near saturation the system achieves minimal entransy dissipation, reduced mois-ture-based thermal resistance (TRMED), and a lower X value, indicating that the overall heat and mass transfer losses are nearly minimized.