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Flow-X─ Function Reference
Flow-X General functions - fxIAPWS_IF97_M
fxIAPWS_IF97_M
Description
The function calculates the density and enthalpy of steam and water according to AIPWS-IF97 in Metric
units.
IAPWS-IF97 defines calculations for 5 regions as shown in the picture below.
Region 1: Water
Region 2: Superheated steam
Region 3: Water
Region 4: Saturation line (saturated steam / water)
Region 5: Superheated steam
References
Revised Release on the IAPWS Industrial Formulation 1997 for the Thermodynamic
Properties of Water and Steam, August 2007.
Boundaries
The IAPWS Industrial Formulation 1997 consists of a set of equations for different regions which cover
the following range of validity:
0 ≤ T ≤ 800 °C p ≤ 1000 bar(a)
800 ≤ T ≤ 2000 °C
p ≤ 500 bar(a)
Содержание flow-x
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