(7). In a gas turbine system air is taken into the compressor at 100kPa and 18°C. It is compressed through a compression ratio of 5:1 with an isentropic efficiency of 85%. The air passes to a combustion chamber where it is heated to 815°C by the addition of fuel. In the turbine it is expanded down to 100kPa with an isentropic efficiency of 88%. If the mass flowrate of the air is 4.5kg/s and the mass of fuel neglected, calculate: (a). the net power output of the turbine if it is coupled to the compressor (b). the plant's thermal efficiency (c). the mass of fuel burnt per hour (d). the air-fuel ratio The calorific value of the fuel is 43.3 MJ/kg

(7). In a gas turbine system air is taken into the compressor at 100kPa and 18°C. It is compressed through a compression ratio of 5:1 with an isentropic efficiency of 85%. The air passes to a combustion chamber where it is heated to 815°C by the addition of fuel. In the turbine it is expanded down to 100kPa with an isentropic efficiency of 88%. If the mass flowrate of the air is 4.5kg/s and the mass of fuel neglected, calculate: (a). the net power output of the turbine if it is coupled to the compressor (b). the plant's thermal efficiency (c). the mass of fuel burnt per hour (d). the air-fuel ratio The calorific value of the fuel is 43.3 MJ/kg

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

(7). In a gas turbine system air is taken into the compressor at 100kPa and 18°C.
It is compressed through a compression ratio of 5:1 with an isentropic
efficiency of 85%. The air passes to a combustion chamber where it is heated
to 815°C by the addition of fuel. In the turbine it is expanded down to
100kPa with an isentropic efficiency of 88%. If the mass flowrate of the air
is 4.5kg/s and the mass of fuel neglected, calculate:
(a). the net power output of the turbine if it is coupled to the
compressor
(b). the plant's thermal efficiency
(c). the mass of fuel burnt per hour
(d). the air-fuel ratio
The calorific value of the fuel is 43.3MJ/kg

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