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Estimation of vapor transfer coefficient of hydrophobic porous membranes for applications in membrane distillation

机译：疏水性多孔膜在膜蒸馏中的蒸气传递系数估算

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摘要

Based on the dusty gas model, expressions of the water vapor transfer coefficient of hydrophobic membranes were obtained. These expressions, together with data of air-liquid displacement measurements, constitute and independent method of determining the vapor transfer coefficient of hydrophobic membranes, which is required for predicting and simulating membrane distillation (MD) performance. As a test, this method was applied to three commercial hydrophobic membranes and the predicted transfer coefficient values agreed well with the values obtained from other mehtods employed in MD literature. The availability of an independent method of determining vapor transfer coefficient of the membrane makes it possible to validate MD models with greater certainty.
机译：基于粉尘气体模型，得到了疏水膜水蒸气传递系数的表达式。这些表达式与气液位移测量数据一起构成确定疏水膜的蒸汽传递系数的独立方法，该方法是预测和模拟膜蒸馏（MD）性能所必需的。作为测试，将该方法应用于三种市售疏水膜，并且预测的传递系数值与从MD文献中使用的其他方法获得的值非常吻合。确定膜的蒸气传递系数的独立方法的可用性使得可以更有把握地验证MD模型。

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