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Does the coalburn factor increase with temperature? If so, why?
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#2
Art Montemayor
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Posted 12 November 2013 - 04:17 PM
Are you by any chance referring to the Chilton and Colburn J-factor analogy in heat transfer?
#3
dreambigger777
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Posted 13 November 2013 - 03:19 AM
Yes..the j-factor. Does it increase with temperature?
#4
breizh
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Posted 13 November 2013 - 04:45 AM
Hi,
From the definition of J factor = Nu/( Re *Pr^1/3) you may find the answer , in particular considering the impact of the temperature on the viscosity !
Hope this helps
Breizh
#5
dreambigger777
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Posted 13 November 2013 - 11:21 AM
@breizh.. why dont we consider the change of other factors like density, thermal conductivity with temperature?
#6
breizh
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Posted 13 November 2013 - 08:05 PM
Hi,
You need to evaluate which property is more affected by temperature change. To me it's viscosity .
Breizh
#7
dreambigger777
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Posted 13 November 2013 - 10:04 PM
@Breizh....thanks a lot 
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