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Experimental and computational fluid dynamics modeling of a novel tray humidifier column in humidification dehumidification desalination; evaluation of hydrodynamic and heat transfer characteristics
Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering ( IF 2.4 ) Pub Date : 2020-04-08 , DOI: 10.1177/0954408920916580 Taleb Zarei 1 , Reza Hamidi Jahromi 1 , Arash Mohammadi Karachi 1
Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering ( IF 2.4 ) Pub Date : 2020-04-08 , DOI: 10.1177/0954408920916580 Taleb Zarei 1 , Reza Hamidi Jahromi 1 , Arash Mohammadi Karachi 1
Affiliation
In this article, a novel tray humidifier column for humidification dehumidification desalination was proposed. The performance of the humidifier column has been investigated with experimental and computational fluid dynamics simulations. The hydrodynamics and heat transfer characteristics of this tray humidifier has been studied. A stainless steel sieve tray with a rectangular cross section with a dimension of 20 × 50 cm was used in the experimental study. In computational fluid dynamics modeling, a transient three-dimensional model has been developed based on the volume of fluid framework by using standard k-epsilon model. The effect of air and seawater flow rate and inlet seawater temperature on the exit air temperature has been investigated. The results show that the humidifier effectiveness of the tray humidifier column varies between 0.67 and 0.87 depending on operating conditions. Then, tray column can be used in humidification dehumidification desalination systems with advantages such as compact equipment, low-pressure drop, and handling solids or other sources of fouling.
中文翻译:
一种新型盘式加湿器塔在加湿除湿脱盐中的实验和计算流体动力学建模;流体力学和传热特性的评估
在本文中,提出了一种用于加湿除湿脱盐的新型盘式加湿器塔。已经通过实验和计算流体动力学模拟研究了加湿器柱的性能。已经研究了这种托盘加湿器的流体动力学和传热特性。实验研究使用尺寸为 20 × 50 cm 的矩形截面不锈钢筛盘。在计算流体动力学建模中,通过使用标准 k-epsilon 模型,基于流体框架的体积开发了瞬态三维模型。研究了空气和海水流速以及入口海水温度对出口空气温度的影响。结果表明,托盘加湿器塔的加湿器效率在 0 之间变化。67 和 0.87 取决于操作条件。然后,板式塔可用于加湿除湿脱盐系统,具有设备紧凑、压降低、处理固体或其他污染源等优点。
更新日期:2020-04-08
中文翻译:
一种新型盘式加湿器塔在加湿除湿脱盐中的实验和计算流体动力学建模;流体力学和传热特性的评估
在本文中,提出了一种用于加湿除湿脱盐的新型盘式加湿器塔。已经通过实验和计算流体动力学模拟研究了加湿器柱的性能。已经研究了这种托盘加湿器的流体动力学和传热特性。实验研究使用尺寸为 20 × 50 cm 的矩形截面不锈钢筛盘。在计算流体动力学建模中,通过使用标准 k-epsilon 模型,基于流体框架的体积开发了瞬态三维模型。研究了空气和海水流速以及入口海水温度对出口空气温度的影响。结果表明,托盘加湿器塔的加湿器效率在 0 之间变化。67 和 0.87 取决于操作条件。然后,板式塔可用于加湿除湿脱盐系统,具有设备紧凑、压降低、处理固体或其他污染源等优点。