Steam module

The steam module requires steam throughout the entire supply pipe system and liquid throughout the entire return pipe system. Latent heat and compressibility have been taken into account in the calculation. The thermodynamic properties are calculated on the basis of the equation below:

Where:

P   is pressure

M   molar weight of the water

Z   supercompressibility

R   universal gas constant

T   absolute temperature

Compressibility is calculated as a function of pressure and temperature using the SRK equation:

 

Where a, b and c are a function of pressure and temperature only.

 

Thermal capacitivity is calculated using:

Where:

A =   1791.5

B =   0.107

C =   0.586 x 10^-3

D = -0.2 x 10^-6