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EduGorilla
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Steam enters a well-insulated turbine and expands isentropically throughout. At an intermediate pressure, 20 percent of the mass is extracted for process heating and the remaining steam expands isentropically to 9 kPa.

Inlet to turbine P = 14 MPa, T = 560°C, h = 3486 kJ/kg, s = 6.6 kJ/(kg.K)

Intermediate stage h = 2776 kJ/kg

Exit of turbine P = 9 kPa, hf = 174 kJ/kg, hg = 2574 kJ/kg,

sf = 0.6 kJ/(kg.K), sg = 8.1 kJ/(kg.K)

If the flow rate of steam entering the turbine is 100 kg/s, then the work output

(in MW) is_______.

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