4) In a reheat Rankine cycle, water vapor enters the high-pressure turbine at 9MPa and 450°C. It is expanded to an intermediate pressure of 0.8MPa and enters the low-pressure turbine with a temperature of 400°C. Condenser pressure is 7.5kPa and water enters the pump as a saturated liquid. There is no pressure loss in the piping that connects the cycle components. Water mass flow rate is 60 kg/s and both turbines have an isentropic efficiency of 90%. Calculate a) heat transfer from the condenser, in MW
4) In a reheat Rankine cycle, water vapor enters the high-pressure turbine at 9MPa and 450°C. It is expanded to an intermediate pressure of 0.8MPa and enters the low-pressure turbine with a temperature of 400°C. Condenser pressure is 7.5kPa and water enters the pump as a saturated liquid. There is no pressure loss in the piping that connects the cycle components. Water mass flow rate is 60 kg/s and both turbines have an isentropic efficiency of 90%. Calculate a) heat transfer from the condenser, in MW
Refrigeration and Air Conditioning Technology (MindTap Course List)
8th Edition
ISBN:9781305578296
Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson
Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson
Chapter28: Special Refrigeration Applications
Section: Chapter Questions
Problem 15RQ: Why is two-stage compression popular for extra-low-temperature refrigeration systems?
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