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A steam power plant operates on the Rankine Cycle with Reheat, using the specified conditions below. The streams are labeled as follows: 3 - boiler to turbine 1; 4 - turbine to reheat; 5 - reheat to turbine 2; 6 turbine to condenser; 7 condenser to pump; 8 pump to boiler. Determine the following
(a) The work output of each turbine per kg of steam
(b)The work input of the feedwater pump per kg of circulated water
(c) the flow rate of steam required.
(d) the heat input required in the boiler/superheater and reheater
(e) the thermal efficiency
the conditions are as follows T(3) - 500 C; P(3) - 4 MPa; P(4) - .8 MPa; T(5) - 500 C; P(6) = .01 MPa; n(turbines) - .85; n(pump) - .8; plant capacity - 80 MW
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