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首页> 外文期刊>Journal of Heat Transfer >An Analytical Solution To Heat And Mass Transfer In Hollow Fiber Membrane Contactors For Liquid Desiccant Air Dehumidification
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An Analytical Solution To Heat And Mass Transfer In Hollow Fiber Membrane Contactors For Liquid Desiccant Air Dehumidification

机译：液体干燥剂空气除湿用中空纤维膜接触器传热传质的解析解决方案

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摘要

Hollow fiber membrane contactors are used in air dehumidification. The benefit of this technology is that the liquid desiccant is not in a direct contact with the process air; therefore, the problem of liquid droplets crossover is prevented. The equations governing the heat and moisture transfer from the air to the liquid, through the membranes, are described. An analytical solution is obtained for the dimensionless differential equations, with which the dehumidification effectiveness could be estimated by simple algebraic cal-culations. It provides a convenient yet accurate tool for the component design and system optimization. The model is validated by experiments. The effects of varying operating conditions on system performance are investigated. It is found that the total number of transfer units for sensible heat and the overall Lewis number are the most dominant pa-rameters influencing heat and mass transfer.
机译：中空纤维膜接触器用于空气除湿。该技术的好处是液体干燥剂不会直接与工艺空气接触；因此，防止了液滴交叉的问题。描述了控制通过膜从空气到液体的热量和水分传递的方程式。获得了无量纲微分方程的解析解，可以通过简单的代数计算来估计除湿效果。它为组件设计和系统优化提供了方便而准确的工具。该模型已通过实验验证。研究了变化的操作条件对系统性能的影响。发现显热传递单元的总数和总路易斯数是影响传热和传质的最主要参数。

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