A Steam Power Plant operates in a reheat-regenerative cycle. The steam enters the turbine at 103,000 kg/hr with a pressure of 15 MPaa, 530 C and expand to 5 MPaa. After the expansion the steam is reheated and reenters the turbine at 530 C. Steam extraction occurs at 2.0 MPaa for feedwater heating in the open feed water heater and the remaining expands to 50 kPaa in the condenser. Determine: 1. The mass of steam extracted, kg/hr 2. The cycle thermal efficiency, % 3. The engine thermal efficiency, % 4. The cycle steam rate, kg/kW-hr 5. The amount of circulating water(gpm) in the condenser if the temperature rise is 15 C.

A Steam Power Plant operates in a reheat-regenerative cycle. The steam enters the turbine at 103,000 kg/hr with a pressure of 15 MPaa, 530 C and expand to 5 MPaa. After the expansion the steam is reheated and reenters the turbine at 530 C. Steam extraction occurs at 2.0 MPaa for feedwater heating in the open feed water heater and the remaining expands to 50 kPaa in the condenser. Determine: 1. The mass of steam extracted, kg/hr 2. The cycle thermal efficiency, % 3. The engine thermal efficiency, % 4. The cycle steam rate, kg/kW-hr 5. The amount of circulating water(gpm) in the condenser if the temperature rise is 15 C.

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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