The enthalpy of steam entering a, turbine in a Rankine cycle is 3200 kJ/kg. The enthalpy after isentropic expansion is 2400 kJ/kg and the enthalpy at the end of actual expansion is 2560 kJ/kg. What is the turbine efficiency?

The enthalpy of steam entering a, turbine in a Rankine cycle is 3200 k

1.	The enthalpy of steam entering a, turbine in a Rankine cycle is 3200 kJ/kg. The enthalpy after isentropic expansion is 2400 kJ/kg and the enthalpy at the end of actual expansion is 2560 kJ/kg. What is the turbine efficiency?
A.	75%
B.	0.8
C.	85%
D.	0.9
Answer» C. 85%

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The enthalpy of steam entering a, turbine in a Rankine cycle is 3200 kJ/kg. The enthalpy after isentropic expansion is 2400 kJ/kg and the enthalpy at the end of actual expansion is 2560 kJ/kg. What is the turbine efficiency?

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