Phase change due to radiation
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Hello every one. I m facing some problem. Hope you will advice me to solve it:
Problem: I want to simulate phase change due to solar radiation. Left is a photovolatic cell in which an inward heat flux is applied.Just after the Cell, there is air. After the air layer there is a alluminium cover. The PCM(Phase change materials) is after the cover. Now, the condition is 1) Heat flux is applied to the PV cell. So its temperature will rise(750 W/m2). 2) there will be an Energy loss due to convection and radiation to ambient (assume convective heat transfer cof: 10w/m2k). 3) The rest heat flux is imposed in the cover make it heated. As a result the PCM will melt. Question: I have defined the interfaces and coupled it for PV to Air, Air to cover, Cover to PCM. I can easily give heat flux in the left PV cell. But as the walls are coupled how can i define heat transfer co efficient for the air?? I used P1 radiation model along with solidification and melting. PLs any one can help me????? |
Can anyone help me??
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no one for help????
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