Steam enters a turbine at a mass flow rate of 1.4 kg/s, a pressure of 700 kPa and a temperature of 400 °C. Steam comes out of the turbine at a pressure of 100 kPa and a specific volume of 1.4 m3/kg. Since the heat transfer from the turbine to the environment is 50 kW, the boundary temperature between the turbine and the environment is 70 °C, a) Find the power produced by the turbine. b) Calculate the entropy produced in the turbine.
Steam enters a turbine at a mass flow rate of 1.4 kg/s, a pressure of 700 kPa and a temperature of 400 °C. Steam comes out of the turbine at a pressure of 100 kPa and a specific volume of 1.4 m3/kg. Since the heat transfer from the turbine to the environment is 50 kW, the boundary temperature between the turbine and the environment is 70 °C, a) Find the power produced by the turbine. b) Calculate the entropy produced in the turbine.
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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Steam enters a turbine at a mass flow rate of 1.4 kg/s, a pressure of 700 kPa and a temperature of 400 °C. Steam comes out of the turbine at a pressure of 100 kPa and a specific volume of 1.4 m3/kg. Since the heat transfer from the turbine to the environment is 50 kW, the boundary temperature between the turbine and the environment is 70 °C,
a) Find the power produced by the turbine.
b) Calculate the entropy produced in the turbine.
c) Find the isentropic efficiency of the turbine.
Note: Changes in kinetic and potential energies will be neglected and T (K) = 273 + °C will be taken.
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