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In a Gas-Turbine power plant unit, a high-pressure turbine drives the compressor, and a low-pressure turbine drives the generator through suitable gearing system. The overall pressure ratio is 4/1, and the maximum temperature is 6500C. The isentropic efficiencies of the compressor, H.P. turbine, and L.P. turbine, are respectively 0.8, 0.83, and 0.85, and the mechanical efficiency of both shafts is 98%. Calculate the intermediate pressure of the turbine when the air intake conditions are 1.01 bar and 250C. Calculate also the thermal efficiency and the shaft power when mass flow is 60 kg/s.

In a Gas-Turbine power plant unit, a high-pressure turbine drives the compressor, and a low-pressure turbine drives the generator through suitable gearing system. The overall pressure ratio is 4/1, and the maximum temperature is 6500C. The isentropic efficiencies of the compressor, H.P. turbine, and L.P. turbine, are respectively 0.8, 0.83, and 0.85, and the mechanical efficiency of both shafts is 98%. Calculate the intermediate pressure of the turbine when the air intake conditions are 1.01 bar and 250C. Calculate also the thermal efficiency and the shaft power when mass flow is 60 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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In a Gas-Turbine power plant unit, a high-pressure turbine drives the compressor, and a low-pressure turbine drives the generator through suitable gearing system. The overall pressure ratio is 4/1, and the maximum temperature is 6500C. The isentropic efficiencies of the compressor, H.P. turbine, and L.P. turbine, are respectively 0.8, 0.83, and 0.85, and the mechanical efficiency of both shafts is 98%. Calculate the intermediate pressure of the turbine when the air intake conditions are 1.01 bar and 250C. Calculate also the thermal efficiency and the shaft power when mass flow is 60 kg/s.
Transcribed Image Text:In a Gas-Turbine power plant unit, a high-pressure turbine drives the compressor, and a low-pressure turbine drives the generator through suitable gearing system. The overall pressure ratio is 4/1, and the maximum temperature is 6500C. The isentropic efficiencies of the compressor, H.P. turbine, and L.P. turbine, are respectively 0.8, 0.83, and 0.85, and the mechanical efficiency of both shafts is 98%. Calculate the intermediate pressure of the turbine when the air intake conditions are 1.01 bar and 250C. Calculate also the thermal efficiency and the shaft power when mass flow is 60 kg/s.
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