A gas turbine unit consists of a compressor, turbine and combustion chamber The compressor and turbine are mechanically coupled. The pressure ratio of the unit is 5.5:1 over a temperature range of 20°C to 810°C. If the isentropic efficiency of the compressor and turbine is 85% and the calorific value of the fuel is 42.5MJ/kg. Calculate: (a). the air-fuel ratio (b). the thermal efficiency 35.2

A gas turbine unit consists of a compressor, turbine and combustion chamber The compressor and turbine are mechanically coupled. The pressure ratio of the unit is 5.5:1 over a temperature range of 20°C to 810°C. If the isentropic efficiency of the compressor and turbine is 85% and the calorific value of the fuel is 42.5MJ/kg. Calculate: (a). the air-fuel ratio (b). the thermal efficiency 35.2

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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Question

A gas turbine unit consists of a compressor, turbine and combustion chamber
The compressor and turbine are mechanically coupled. The pressure ratio of
the unit is 5.5:1 over a temperature range of 20°C to 810°C. If the isentropic
efficiency of the compressor and turbine is 85% and the calorific value of the
fuel is 42.5MJ/kg. Calculate:
(a). the air-fuel ratio
(b). the thermal efficiency
35.2

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