{"id":346730,"date":"2024-01-26T08:54:11","date_gmt":"2024-01-26T08:54:11","guid":{"rendered":"\/forum\/forums\/topic\/modelling-effect-of-vapor-absorption-in-energy-exchangers\/"},"modified":"2024-01-26T08:54:11","modified_gmt":"2024-01-26T08:54:11","slug":"modelling-effect-of-vapor-absorption-in-energy-exchangers","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/modelling-effect-of-vapor-absorption-in-energy-exchangers\/","title":{"rendered":"Modelling effect of vapor absorption in energy exchangers"},"content":{"rendered":"<p>Hi everyone,<br \/>I am modeling a membrane energy exchanger for dehumidification of the air in a hot, humid climate. In this energy exchanger system, the air flows on one side of the membrane, and on the other, the liquid desiccant solution flows. Both fluids are separated by the semi-permeable membrane, which allows only moisture transfer but not liquid. I am modeling this system through the ANSYS FLUENT and UDF is used to model moisture transfer through the membrane.<br \/>As the moisture transfers through the membrane, it changes phase at the air-liquid solution interface. In ANSYS Fluent, the effect of this temperature change is not considered while solving the energy equation.<br \/>How can I include this <strong>effect of phase change of vapor<\/strong> (absorption on the solution-air interface) phenomenon on the performance of the system in terms of temperature change of solution and air?<br \/>Can I include this effect using Eulerian Wall Film?<br \/>or<br \/>Is there any way to modify the energy equation using UDF?<\/p>\n<p>Thanks and Regards,<br \/>Ali<\/p>\n","protected":false},"template":"","class_list":["post-346730","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"Hi everyone,I am modeling a membrane energy exchanger for dehumidification of the air in a hot, humid climate. In this energy exchanger system, the air flows on one side of the membrane, and on the other, the liquid desiccant solution flows. 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