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A steam power plant operates according to the reheat Rankine cycle between the pressure limits of 15 MPa and 10 kPa. The mass flow rate of the steam circulating in the cycle is 12 kg/s. The steam enters both stages of the turbine at a temperature of 500 °C. The dryness fraction of the steam at the exit of the low-pressure turbine is 90%. Show the cycle on a T-s diagram, including the saturated liquid and saturated vapor lines. Also, determine: a) The pressure at which reheat occurs, b) The amount of heat supplied to the steam per unit time in the boiler, c) The thermal efficiency of the cycle.

A steam power plant operates according to the reheat Rankine cycle between the pressure limits of 15 MPa and 10 kPa. The mass flow rate of the steam circulating in the cycle is 12 kg/s. The steam enters both stages of the turbine at a temperature of 500 °C. The dryness fraction of the steam at the exit of the low-pressure turbine is 90%. Show the cycle on a T-s diagram, including the saturated liquid and saturated vapor lines. Also, determine: a) The pressure at which reheat occurs, b) The amount of heat supplied to the steam per unit time in the boiler, c) The thermal efficiency of the cycle.

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)
Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)
8th Edition
ISBN:9781305387102
Author:Kreith, Frank; Manglik, Raj M.
Publisher:Kreith, Frank; Manglik, Raj M.
Chapter2: Steady Heat Conduction
Section: Chapter Questions
Problem 2.10P
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A steam power plant operates according to the reheat Rankine cycle between the pressure limits of 15 MPa and 10 kPa. The mass flow rate of the steam circulating in the cycle is 12 kg/s. The steam enters both stages of the turbine at a temperature of 500 °C. The dryness fraction of the steam at the exit of the low-pressure turbine is 90%. Show the cycle on a T-s diagram, including the saturated liquid and saturated vapor lines. Also, determine: a) The pressure at which reheat occurs, b) The amount of heat supplied to the steam per unit time in the boiler, c) The thermal efficiency of the cycle.

Note: This is a question from the thermodynamics course. Please provide a clear and quick solution.

Kazan 2 Pompa Türbin Kondenser 6
Transcribed Image Text:Kazan 2 Pompa Türbin Kondenser 6
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