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10–41 Consider a steam power plant that operates on a reheat Rankine cycle and has a net powe the high-pressure turbine at 10 MPa and 500°C and the low-pressure turbine at 1 MPa and 500° a saturated liquid at a pressure of 10 kPa. The isentropic efficiency of the turbine is 80 percent, 95 percent. Show the cycle on a T-s diagram with respect to saturation lines, and determine (a) superheated) of the steam at the turbine exit, (b) the thermal efficiency of the cycle, and (c) the Answers: (a) 88.1°C, (b) 34.1 percent, (c) 62.7 kg/s

10–41 Consider a steam power plant that operates on a reheat Rankine cycle and has a net powe the high-pressure turbine at 10 MPa and 500°C and the low-pressure turbine at 1 MPa and 500° a saturated liquid at a pressure of 10 kPa. The isentropic efficiency of the turbine is 80 percent, 95 percent. Show the cycle on a T-s diagram with respect to saturation lines, and determine (a) superheated) of the steam at the turbine exit, (b) the thermal efficiency of the cycle, and (c) the Answers: (a) 88.1°C, (b) 34.1 percent, (c) 62.7 kg/s

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
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10–41 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 MPa and 500°C. Steam leaves the condenser as a saturated liquid at a pressure of 10 kPa. The isentropic efficiency of the turbine is 80 percent, and that of the pump is 95 percent. Show the cycle on a T-s diagram with respect to saturation lines, and determine (a) the quality (or temperature, if superheated) of the steam at the turbine exit, (b) the thermal efficiency of the cycle, and (c) the mass flow rate of the steam. Answers: (a) 88.1°C, (b) 34.1 percent, (c) 62.7 kg/s
Transcribed Image Text:10–41 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 MPa and 500°C. Steam leaves the condenser as a saturated liquid at a pressure of 10 kPa. The isentropic efficiency of the turbine is 80 percent, and that of the pump is 95 percent. Show the cycle on a T-s diagram with respect to saturation lines, and determine (a) the quality (or temperature, if superheated) of the steam at the turbine exit, (b) the thermal efficiency of the cycle, and (c) the mass flow rate of the steam. Answers: (a) 88.1°C, (b) 34.1 percent, (c) 62.7 kg/s
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