Consider a steam power plant that operates on the ideal reheat Rankine cycle. The plant maintains the boiler at 17.5 MPa, the reheater at 2 MPa, and the condenser at 50 kPa. The temperature is 550°C at the entrance of the high-pressure turbine, and 300°C at the entrance of the low-pressure turbine. Determine the thermal efficiency of this system. Use steam tables. The thermal efficiency of this system is 74 %.

Consider a steam power plant that operates on the ideal reheat Rankine cycle. The plant maintains the boiler at 17.5 MPa, the reheater at 2 MPa, and the condenser at 50 kPa. The temperature is 550°C at the entrance of the high-pressure turbine, and 300°C at the entrance of the low-pressure turbine. Determine the thermal efficiency of this system. Use steam tables. The thermal efficiency of this system is 74 %.

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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Consider a steam power plant that operates on the ideal reheat Rankine cycle. The plant maintains the boiler at 17.5 MPa, the reheater at 2 MPa, and the condenser at 50 kPa. The temperature is 550°C at the entrance of the high-pressure turbine, and 300°C at the entrance of the low-pressure turbine. Determine the thermal efficiency of this system. Use steam tables.

The thermal efficiency of this system is 74%.

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Step 1: Determine the given variables

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Step 2: Determine the enthalpy at state 1 and 2

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Step 3: Determine the enthalpy at state 3 and 4

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Step 4: Determine the enthalpy at state 5 and 6

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Step 5: Determine the net work output of the cycle

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Step 6: Determine the heat input in the cycle

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Step 7: Determine the thermal efficiency of the cycle

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