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how to calculate heat transfer coefficient

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Old   March 15, 2006, 01:43
Default how to calculate heat transfer coefficient
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kathiravan
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hi experts, i did one conjugate heat transfer(natural convection) problem in star-cd. it shows my heat transfer coefficient of fin surface is 105 W/M2k. but my proffeser said in natural convection HTC is nearly 10 W/m2k only. but my apporoach is correct. then why i get this value. how to get correct value
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Old   March 15, 2006, 11:39
Default Re: how to calculate heat transfer coefficient
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PETE
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use hcoef and a Tbulk which is appropriate to the air temperature in the experimental setup which yields 10
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Old   March 16, 2006, 07:47
Default Re: how to calculate heat transfer coefficient
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kathir
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but my friend told star-cd is not give correct value of hcc. because it calculate the heat transfer after that heat transfer/temp variation. so this process if takes near the fin fluis temp. that temp is nearly equal to fin temp. so thats whay it shows high HTC. because the temp variation is vary large. but he said that HTC is wrong. is his statement is correct or not. please tell me.

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Old   March 16, 2006, 15:01
Default Re: how to calculate heat transfer coefficient
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paulh
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There is a good reference on adapco-online that discusses STAR's HTC.

http://www.adapco-online.com

click on Feature Articles - top left of page

click on Heat Transfer - fourth article

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Old   March 17, 2006, 06:39
Default Re: how to calculate heat transfer coefficient
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kathir
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thanks a lot. this site is very useful for me.

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Old   April 1, 2006, 03:45
Default Re: how to calculate heat transfer coefficient
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kathir
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hi experts in tutorial 11 natural heat transfer between solid and fluid. i want to find heat transfer coefficients of fin surface. but shows the large variation like 2000 to 0. because it takes base of the fin is around 2000 w/m2k. but how is it possible. then i cant find the actual variation of HTC in fin. because it shows the htc variation 0 to 2000 by 100 step. fin syrface htc is nearly 10. then how i find the correct answer thanks

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Old   May 6, 2006, 06:03
Default Re: how to calculate heat transfer coefficient
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Gumani
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Hi,I want to know the theoritical value of overall heat transfer coefficient in a concentric tube heat exchanger?
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Old   May 9, 2006, 06:39
Default Re: how to calculate heat transfer coefficient
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amin
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How to calculate heat tranfer coefficant between water nad organic compounds. Please provide me information regarding this
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Old   June 14, 2006, 02:46
Default how to find heat transfer coefficient ketcup
  #9
eyüp kobaş
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please can you help me how to find heat transfer coefficient ketcup and tomato paste
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Old   June 27, 2006, 01:39
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s.mujibur
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how to calculate heat transfer coefficient
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