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Steam Tables
Water and steam thermodynamic properties with IAPWS-based calculations
Presets
Calculation Type
Input Parameters
Compressed Liquid: P > Psat at given T, or T < Tsat at given P
Two-Phase (Wet Steam): Mixture of saturated liquid and vapor (0 < x < 1)
Superheated Vapor: T > Tsat at given P
Supercritical: P > 22.064 MPa and T > 373.95°C
Two-Phase (Wet Steam)
Mixture of saturated liquid and vapor (0 < x < 1)
Steam Properties
Temperature
100.0000°C
Pressure
3.6845 MPa
Specific Volume:0.001000 m³/kg
Enthalpy:418.6000 kJ/kg
Entropy:1.3057 kJ/kg·K
Internal Energy:414.9155 kJ/kg
Saturation Reference
Tsat:100.0000°C
Psat:3.6845 MPa
hf:418.6000 kJ/kg
hg:2,683 kJ/kg
hfg:2,264.4 kJ/kg
vf:0.001000 m³/kg
vg:0.046739 m³/kg
sf:1.3057 kJ/kg·K
sg:7.3740 kJ/kg·K
sfg:6.0683 kJ/kg·K
Useful Relations
Quality (x)
x = (h − hf) / hfg
hfg = hg − hf
Specific Volume
v = vf + x·vfg
For two-phase region
Internal Energy
u = h − P·v
From enthalpy definition
Ideal Gas (approx.)
P·v = RT
R = 0.4615 kJ/(kg·K)