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Anonymous Poster

specific heat of air at constant pressure

08/09/2008 6:55 AM

what will be the specific heat at constant presure of compressed air which is compressed at 100 degree centigrade and 7 bar.
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editorgbanalysts
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Join Date: Jul 2008
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#1

Re: specific heat of air at constant pressure

08/09/2008 11:14 AM

Look for the book entitled "The Properties of Gases and Liquids Their Estimation and Correlation" by Robert Reid and Thomas K. Sherwood. McGraw-Hill (1966)." The correlation formula is in there. usually it is calculated with respect to temperature and, I think, then adjusted for pressure or something like that.

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Anonymous Poster
#2

Re: specific heat of air at constant pressure

08/09/2008 1:25 PM

Try this website

The value it gives of 1.012 [kJ/kg*K] for Specific Heat seems appropriate at 373 K @ 7 atm just by correlating/interpolating with another table I have.
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dadw5boys
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#3

Re: specific heat of air at constant pressure

08/10/2008 12:52 AM

Where are you compressing this air?

The south pole? Brazil?

Location might make a difference.

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PWSlack
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#4

Re: specific heat of air at constant pressure

08/11/2008 10:21 AM

Perry - "The Chemical Engineer's Handbook", any edition.

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philroth
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Location: Silverdale, Washington
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#5

Re: specific heat of air at constant pressure

08/15/2008 4:43 AM

psychometric analysis is needed to get your answer.

The specific heat can only be seen if the relative humidity is known

get a psychometric chart and do the calculation

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