Question

Calculate the temperature, specific volume, internal energy and enthalpy for dry saturated vapor at a pressure of 1.9MPa, if steam is dry saturated vapor.
Steam with dryness fraction of 0.8
Steam is superheated with temperature of 450°C

Answer 1

From the table above,

the specific volume is 0.163m³/kg

Its internal energy is 3030kJ and

Its specific enthalpy is 3357kJ/kg.