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4.55 As shown in Fig. P4.55, a steam turbine at steady state is operated at part load by throttling the steam to a lower pres- Valve Power out Turbine P1 = 1.5 MPa T = 320°C P2 = 1 MPa 3 P3 = .08 bar X3 = 90% A Figure P4.55 sure before it enters the turbine. Before throttling, the pressure and temperature are, respectively, 1.5 MPa and 320°C. After throttling, the pressure is 1 MPa. At the turbine exit, the steam is at .08 bar and a quality of 90%. Heat transfer with the surroundings and all kinetic and potential energy effects can be ignored. Determine (a) the temperature at the turbine inlet, in °C. (b) the power developed by the turbine, in kJ/kg of steam flowing.

4.55 As shown in Fig. P4.55, a steam turbine at steady state is operated at part load by throttling the steam to a lower pres- Valve Power out Turbine P1 = 1.5 MPa T = 320°C P2 = 1 MPa 3 P3 = .08 bar X3 = 90% A Figure P4.55 sure before it enters the turbine. Before throttling, the pressure and temperature are, respectively, 1.5 MPa and 320°C. After throttling, the pressure is 1 MPa. At the turbine exit, the steam is at .08 bar and a quality of 90%. Heat transfer with the surroundings and all kinetic and potential energy effects can be ignored. Determine (a) the temperature at the turbine inlet, in °C. (b) the power developed by the turbine, in kJ/kg of steam flowing.

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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4.55 As shown in Fig. P4.55, a steam turbine at steady state is operated at part load by throttling the steam to a lower pres- Valve Power out Turbine P1 = 1.5 MPa T = 320°C P2 = 1 MPa 3 P3 = .08 bar X3 = 90% A Figure P4.55 sure before it enters the turbine. Before throttling, the pressure and temperature are, respectively, 1.5 MPa and 320°C. After throttling, the pressure is 1 MPa. At the turbine exit, the steam is at .08 bar and a quality of 90%. Heat transfer with the surroundings and all kinetic and potential energy effects can be ignored. Determine (a) the temperature at the turbine inlet, in °C. (b) the power developed by the turbine, in kJ/kg of steam flowing.
Transcribed Image Text:4.55 As shown in Fig. P4.55, a steam turbine at steady state is operated at part load by throttling the steam to a lower pres- Valve Power out Turbine P1 = 1.5 MPa T = 320°C P2 = 1 MPa 3 P3 = .08 bar X3 = 90% A Figure P4.55 sure before it enters the turbine. Before throttling, the pressure and temperature are, respectively, 1.5 MPa and 320°C. After throttling, the pressure is 1 MPa. At the turbine exit, the steam is at .08 bar and a quality of 90%. Heat transfer with the surroundings and all kinetic and potential energy effects can be ignored. Determine (a) the temperature at the turbine inlet, in °C. (b) the power developed by the turbine, in kJ/kg of steam flowing.
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