StmSI_HPS

Calculates the vapor specific enthalpy as a function of pressure and entropy—all variables expressed in SI units. Use for both superheated or wet steam.

Format

StmSI_HPS(P, S)

Arguments

• P

  Pressure of the steam in KPa. The valid range is 0.611213 to 100000 KPa..

• S

  Specific entropy of the steam in J/g/K. The valid range is -0.154549 to 11.9210 J/g/K.

Returns

Computed vapor specific enthalpy in J/g or Error digital state.

Sample Values

Note: Even if the input entropy is less than that of the saturated liquid, the function still computes the enthalpy by extrapolation without setting an error state.