In: Mechanical Engineering
Consider a simple ideal Rankine cycle which uses water as the working fluid. The boiler pressure is 6100 kPa and the condenser pressure is 30 kPa. At the turbine inlet, steam is at 480°C. The isentropic efficiency of the turbine is 92 percent. The pump losses are negligible and the water leaving the condenser is subcooled by 6.3°C. The boiler is sized for a mass flow rate of 20 kg/s. Determine the following values.
The temperature at the pump inlet.
°CThe specific volume at the pump inlet.
m3/kgThe specific enthalpy at the turbine exit.
kJ/kgThe rate at which heat is added in the boiler.
kWThe power required to operate the pumps.
kWThe net power produced by the cycle.
kW
The thermal efficiency.