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interior volume, sorce term, energy is not in banlance?

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Old   February 5, 2012, 03:00
Default interior volume, sorce term, energy is not in banlance?
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Zhongzhu Qiu
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Hi,all

I'm simulating a heatexchanger, which is similar to the outdoor machine of the air conditioner.
I specify a interior volume(which represents heatexchanger, regarded as air fluid) as "source term", and define the right heat exchange rate as *** w/(m3).
after convorge, I look at the energy banlance, but the air temperature increase is not so high as expected, only about half increase? then where is the problem?

thank you very much.

ZZ
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Old   February 5, 2012, 08:53
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Quote:
Originally Posted by qzhzhu View Post
Hi,all

I'm simulating a heatexchanger, which is similar to the outdoor machine of the air conditioner.
I specify a interior volume(which represents heatexchanger, regarded as air fluid) as "source term", and define the right heat exchange rate as *** w/(m3).
after convorge, I look at the energy banlance, but the air temperature increase is not so high as expected, only about half increase? then where is the problem?

thank you very much.

ZZ
Hi,

Heat balance calculations based on the interior surfaces of boundary zones will be incorrect. See the post below for information:

http://cape-forum.com/index.php/topic,466.0.html
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