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Net Calorific Value

Started by kay1, Nov 14 2008 02:27 PM

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#1 kay1

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Posted 14 November 2008 - 02:27 PM

Hi,

Can anyone please tell me why NCV is used for calculating heat of combution and not gross calorific value.

Regards

#2 gvdlans

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619 posts

Posted 15 November 2008 - 01:42 AM

http://en.wikipedia....r_heating_value

#3 Zauberberg

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Posted 15 November 2008 - 09:05 AM

The difference between HHV and LHV is in the amount of heat equal to condensation enthalpy of water from the flue gas. Since you'll hardly see such low temperatures of flue gases at which water will appear as liquid - speaking of industrial applications - the most practical reference value is LHV.

#4 JoeWong

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Posted 16 November 2008 - 07:42 PM

The condensation enthalpy (GHV-LHV) is not the interest of combustion...

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