{"id":314082,"date":"2023-10-31T09:53:29","date_gmt":"2023-10-31T09:53:29","guid":{"rendered":"\/forum\/?post_type=topic&#038;p=314082"},"modified":"2023-10-31T09:53:29","modified_gmt":"2023-10-31T09:53:29","slug":"condensation-with-decreasing-temperature","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/condensation-with-decreasing-temperature\/","title":{"rendered":"Condensation with decreasing temperature"},"content":{"rendered":"<p>Hi,<\/p>\n<p>I am trying to make a multiphase model which involves the condensation of n-heptane.<\/p>\n<p>An issue that I run into in this case is that even for the simplest mass transfer mechanism (constant rate), the temperature of the fluid decreases. My from fluid is the liquid heptane and to liquid is heptane vapor.&nbsp;<\/p>\n<p>Could someone please explain why the temperature decreases while for condensation the temperature should increase? And how can I resolve this problem?<\/p>\n<p><img decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2023\/10\/31-10-2023-1698745994-temperature.png\" alt=\"\"><\/p>\n<p>&nbsp;<\/p>\n<p>Kind regards,<\/p>\n<p>Erik<\/p>\n","protected":false},"template":"","class_list":["post-314082","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,I am trying to make a multiphase model which involves the condensation of n-heptane.An issue that I run into in this case is that even for the simplest mass transfer mechanism (constant rate), the temperature of the fluid decreases. My from fluid is the liquid heptane and to liquid is heptane vapor. 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