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Phase change material. How to see the latent behaviour in the Temperature curve
Posted 2019年6月19日 GMT-4 11:29 Fluid & Heat, Heat Transfer, Materials Version 5.3 0 Replies
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Hi everyone,
I'm triyng to simulate a box with PCM inside, inserted in a laminar flow of hot water. Basically the aim of the simulation is: the water enter cold from the bottom, and when it reaches the PCM box it increases its temperature. So the PCM heats up the water and decrease its temperature. In my simulation the PCM starts in a liquid phase (so it's hot) and then it gets cold during the heat exchange with the waterflow. However, even if it should become solid because I set as a melting temperature 309 K and it actually goes down even at 302K, the PCM doesn't show a latent behaviour at all. The temperature still acts like the PCM it's always a liquid or a solid, no phase change, no melting. I tried to use the "phase change " tool in the heat transfer and it didn't work. So I even tried to build a blanck material, all in one phase so without a phase change, with a really high entalphy in the melting area. Still the results don't show any latent behaviour.
Please, If anyone knows what's wrong or missing would be really nice. Thanks :)
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Hello Filippo Gatti
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