Results 1 to 6 of 6
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11-11-2009, 11:31 AM #1
Calculation of Heat Transfer Coefficient
Hi
I want to design a Heat Exchanger i.e. Condenser .
Subcooling is 8.3 K
Condensing Temp 54.4 Deg C
Ambient Temp is 38 Deg C
So Temp Difference is (54.4-8)-38=8.4 Deg C
Heat Rejection is 13.5 KW.
Copper Tube OD is 3/8" and Thikness is 0.08mm.
Fan air flow is 1.44 m3/s at 50kpa Pressure Drop .
Tube Triangular pitch is 25.4 mm
and Horizontal pitch is 22 mm.
Please suggest How can i get U value for this .
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11-11-2009, 12:45 PM #2
Re: Calculation of Heat Transfer Coefficient
Visit the CoolIt software site & purchase their condenser design program. http://www.coolit.co.za/software.htm
It's excellent & doesn't cost much at all.Engineering Specialist - Cuprobraze, Nocolok, CD Technology
Rarefied Technologies ( SE Asia )
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11-11-2009, 12:57 PM #3
Re: Calculation of Heat Transfer Coefficient
Sagar the data u hv provided is not sufficient as
1. Nos of rows and column
2. Refrigerant
Provide more data
Thanks
Amit
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12-11-2009, 09:22 AM #4
Re: Calculation of Heat Transfer Coefficient
No.of rows are 4 and Refrigerant is R22
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12-11-2009, 10:25 AM #5
Re: Calculation of Heat Transfer Coefficient
What about columns?
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29-05-2010, 04:57 PM #6
Re: Calculation of Heat Transfer Coefficient
let's say that the number of columns is 3 how is the U value calculated?
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