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Power and current calculation in Joule Heating Model

Posted 5 déc. 2011, 13:30 UTC−5 MEMS & Nanotechnology, Heat Transfer & Phase Change, MEMS & Piezoelectric Devices, Structural Mechanics Version 4.2 1 Reply

Andre Teves
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Hi all,

I´m trying to check the power dissipated in my model by two different methods:

1 - Directly calculating volume int (tem.Qh) = 4.7409W
2 - By calculating the inward current in the input surface (9) and multiplying by the voltage input (0.2V). In this case, the result is 19.80*0.2 = 3.9604

Shoudn´t these two be the same?

Besides that, the sum of the inward (9) and outward (1) current should be zero, but that is not the case (0.7126A).

What I´m doing wrong?

Thanks in advance,
Andre

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1 Reply Last Post 8 déc. 2011, 02:49 UTC−5
Li-ion
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Posted: 1 decade ago 8 déc. 2011, 02:49 UTC−5
Hi,

Have you tried to refine your mesh to see the change of results ?


Best rgds,

Dinh
Hi, Have you tried to refine your mesh to see the change of results ? Best rgds, Dinh

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