Consider a steam power plant that operates on an ideal reheat-regenerative Rankine cycle with one open feedwater heater, one closed feedwater and one reheater. Steam enters the turbine at 17 MPa and 600C and is condensed in the condenser at a pressure of 11 kpa. Some steam is extracted from the turbine at 4.9 MPa for the closed feedwater heater and the remaining steam is reheated at the same pressure to 600C. The extracted steam is completely condensed in the heater and is pumped to 17 MPa before it mixes with the feedwater at the same pressure. Steam for the open feed water heater is extracted from the low-pressure turbine at a pressure of 0.6 MPa. Draw the schematic and T-s diagram of the cycle.
Consider a steam power plant that operates on an ideal reheat-regenerative Rankine cycle with one open feedwater heater, one closed feedwater and one reheater. Steam enters the turbine at 17 MPa and 600C and is condensed in the condenser at a pressure of 11 kpa. Some steam is extracted from the turbine at 4.9 MPa for the closed feedwater heater and the remaining steam is reheated at the same pressure to 600C. The extracted steam is completely condensed in the heater and is pumped to 17 MPa before it mixes with the feedwater at the same pressure. Steam for the open feed water heater is extracted from the low-pressure turbine at a pressure of 0.6 MPa. Draw the schematic and T-s diagram of the cycle.
Determine the following:
(a) the enthalpy at each point in the cycle,
(b) Fractions of steam extracted from the turbine
(c) Turbine work
(d) Work Pump
(e) Heat Added
(f) Heat Rejected
(g) the thermal efficiency of the cycle
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