500 MMSCFD of supercritical steam generated in the steam generator (shown in the sketch below) at P=250 bar and T₁=550°C are expanded into a series of two condensing steam turbines (CSTs) to a final pressure of P, = 8 kPa as shown in the diagram below. To improve the efficiency of the cycle, part of the exhaust of the High Pressure (HP) Turbine at P₂ = P = 40 bar is reheated to T₁=550° C and sent to the Low Pressure (LP) Turbine for further expansion, and part is throttled down to P = 8 bar and mixed with the discharge of the Condensate Pump of the Condenser effluent in the Overflow Feed Water Heater (OFWH) tank in order to preheat the boiler feed water (which also serves as the Deaerator). This power cycle is known as the Regenerative Rankine Cycle with Open Feed Water Heater and it is shown in the diagram below: QH (10) STEAM GENERATOR DEAERATOR 0.0 OPEN FEED WATER HEATER 8 HP TURBINE FEED WATER PUMP 3 THROTTLING VALVE 8 LOW PRESSURE TURBINE CONDENSATE PUMP Qc CONDENSER If the efficiency of the each turbine is 80% and that of the condensate and boiler feed water

500 MMSCFD of supercritical steam generated in the steam generator (shown in the sketch below) at P=250 bar and T₁=550°C are expanded into a series of two condensing steam turbines (CSTs) to a final pressure of P, = 8 kPa as shown in the diagram below. To improve the efficiency of the cycle, part of the exhaust of the High Pressure (HP) Turbine at P₂ = P = 40 bar is reheated to T₁=550° C and sent to the Low Pressure (LP) Turbine for further expansion, and part is throttled down to P = 8 bar and mixed with the discharge of the Condensate Pump of the Condenser effluent in the Overflow Feed Water Heater (OFWH) tank in order to preheat the boiler feed water (which also serves as the Deaerator). This power cycle is known as the Regenerative Rankine Cycle with Open Feed Water Heater and it is shown in the diagram below: QH (10) STEAM GENERATOR DEAERATOR 0.0 OPEN FEED WATER HEATER 8 HP TURBINE FEED WATER PUMP 3 THROTTLING VALVE 8 LOW PRESSURE TURBINE CONDENSATE PUMP Qc CONDENSER If the efficiency of the each turbine is 80% and that of the condensate and boiler feed water

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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