Section: Thermodynamics | Marks: 2
Steam is isentropically expanded in a turbine from 80 bar to 7 bar. At the inlet of the turbine (state 1) h1 is 3246 kJ/kg and s1 is 6.52 kJ/(kg.K). Pressure = 7 bar hf (kJ/kg) hg (kJ/kg) sf [kJ/(kg.K)] sg [kJ/(kg.K)] 697 2763 2.0 6.7 The enthalpy of the steam exiting the turbine (state 2) in kJ/kg is
- A. 2683.87
- B. 2657.17
- C. 1986.87
- D. 3354.17 XE (GATE 2014)
Answer: A. 2683.87