Properties of Water and Steam
This calculator allows you to determine the thermodynamic properties of steam.
It uses the IAPWS Industrial Formulation 1997 for the
Thermodynamic Properties of Water and Steam (IAPWS-IF97).
The IAPWS-IF97 divides the thermodynamic surface into five regions which cover the following ranges:
273.15 K < T < 1073.15 K P < 100MPa
1073.15 K < T < 2273.15 K P < 10MPa
The five regions are identified as (see figure below):
- region 1 for the liquid state from low to high pressures,
- region 2 for the vapor and ideal gas state,
- region 3 for the thermodynamic state around the critical point,
- region 4 for the saturation curve (vapor-liquid equilibrium),
- region 5 for high temperatures above 1073.15 K (800 °C) and pressures up to 10 MPa (100 bar).
Use the following form to enter the temperature (T) and pressure (P) and units for your calculation. If you want thermodynamic
properties of staturated steam go here
