2 replies to this topic

[ASH25320]

I am searching for Cp values for air( T=210 deg C, P=155 Kg/cm2). But to no avail. Can somebody help?.
Thanks in advance....

[engware]

Hi there:

For the purpose of engineering calculations and considering that air behaves as the perfect gas -- having a constant specific heat value -- one can always use that the air cp value is 1.004 [kJ/kg*K].

Also, for air one can assume that the air gas constant value is 0.2867 [kJ/kg*K] and that the air specific heat ratio, kapa and/or gamma, is 1.4 [/].

Thanks,

Gordan

PS

An HTML calculator dealing with physical properties for air and some other basis species is attached -- physical properties are a function of temperature (only for the purpose of entropy and Gibbs free energy calculations, temperature and pressure are input values, otherwise just the temperature value is the input value)!

[kuldeepd]

http://www.processca..._Formation.aspx

hope this helps.