Problem- Methane enters a heat exchanger at a volumetric flow rate of 150.0 m3/min, at an absolute pressure of 1.013 bar and temperature of 30.0°C. At these conditions, the specific enthalpy of methane is 10.223 kJ/kg. The methane leaves the heat exchanger at an absolute pressure of 1.013 bar and temperature of 70.0°C. The corresponding specific enthalpy at these conditions is 102.008 kJ/kg. The methane is heated by a stream of saturated steam entering the heat exchanger at 2.2 bar (absolute) and leaving as a liquid at 50.0°C. Find the volumetric flow rate of saturated steam into the heat exchanger by following the steps below.
It is not a question in the book, so I just need the full solution of deriving!