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e high-pressure turbine at 10 MPa and 500°C enser as a saturated liquid at a pressure of 1 hermal efficiency of the cycle. Use steam ta

e high-pressure turbine at 10 MPa and 500°C enser as a saturated liquid at a pressure of 1 hermal efficiency of the cycle. Use steam ta

Elements Of Electromagnetics
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 a reheat Rankine cycle and has a net power output of 80 MW. Steam enters the high-pressure turbine at 10 MPa and 500°C and the low-pressure turbine at 1.4 MPa and 500°C. Steam leaves the condenser as a saturated liquid at a pressure of 10 kPa. Assume both turbine and compressor are isentropic. Determine the thermal efficiency of the cycle. Use steam tables. The thermal efficiency of the cycle is 38.55%.
Transcribed Image Text:Consider a steam power plant that operates on a reheat Rankine cycle and has a net power output of 80 MW. Steam enters the high-pressure turbine at 10 MPa and 500°C and the low-pressure turbine at 1.4 MPa and 500°C. Steam leaves the condenser as a saturated liquid at a pressure of 10 kPa. Assume both turbine and compressor are isentropic. Determine the thermal efficiency of the cycle. Use steam tables. The thermal efficiency of the cycle is 38.55%.
Expert Solution
Step 1: Write the given data with suitable variables-

The net power output is P equals 80 space MW.

The steam enters the high-pressure turbine at 10 space MPa comma space 500 degree straight C.

The steam enters the low-pressure turbine at 1.4 space MPa comma space 500 degree straight C

The pressure of the condenser is 10 space k P a.

The TS diagram is-

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