Consider a regenerative vapor power cycle with one open feedwater heater(OFWH). Steam enters the turbine at 8 MPa, 480 oC and expands to 0.70 MPa, where some of the steam is extracted and diverted to the condenser pressure of 0.008 MPa. Saturated liquid exits the OFWH at 0.7 MPa.The isentropic efficiency of each turbine stage is 85% and each pump operates isentropically. If the net power output of the cycle is 100 MW, determine (a) the thermal efficiency (b) mass flowrate of steam
Consider a regenerative vapor power cycle with one open feedwater heater(OFWH). Steam enters the turbine at 8 MPa, 480 oC and expands to 0.70 MPa, where some of the steam is extracted and diverted to the condenser pressure of 0.008 MPa. Saturated liquid exits the OFWH at 0.7 MPa.The isentropic efficiency of each turbine stage is 85% and each pump operates isentropically. If the net power output of the cycle is 100 MW, determine
(a) the thermal efficiency
(b) mass flowrate of steam
(c) Repeat the previous problem with a closed FWH w/ the same turbine efficiency of 85% but with only one isentropic pump. Determine the cycle efficiency and compare it with the cycle efficiency of an ideal Rankine cycle. Compare it with the cycle efficiency of an ideal Rankine cycle
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Repeat the previous problem with a closed FWH w/ the same turbine efficiency of 85% but with only one isentropic pump. Determine the cycle efficiency and compare it with the cycle efficiency of an ideal Rankine cycle. Compare it with the cycle efficiency of an ideal Rankine cycle
(c) Repeat the previous problem with a closed FWH w/ the same turbine efficiency of 85% but with only one isentropic pump. Determine the cycle efficiency and compare it with the cycle efficiency of an ideal Rankine cycle. Compare it with the cycle efficiency of an ideal Rankine cycle