Tuesday, November 18, 2008

HC Gas Heat capacity ratio (Approx.)

Heat capacity ratio (or Isentropic exponent, k) is the ratio of specific heat capacity at constant pressure (CP) to specific heat capacity at constant volume (CV). It is commonly used in critical pressure ratio estimation, compression head estimation, etc. Following is a approximate k factor of Hydrocarbon gases. It may be used when only HC gas molecular weight (MW) and temperature (T) is available.


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