Air is drawn in a gas turbine unit at15°C and 1.01 bar and pressure ratiois 7: 1. The compressor is driven by theHP.turbine and L.P. turbine drives aseparate power shaft. The isentropicefficiencies of compressor and the HPand LPturbines are 0.82, 0,85 and 0.85respectively. If the maximum cycletemperature is 610°C, calculate3. The work ratio. 0.2151. The pressure and temperature of thegases entering the power turbine 654.4K 2-The net power developed by theunit per kg/s mass flow. 2.1 kw4. The thermal efficiency of the unit.18-87 Neglect the mass of fuel andassume the following:For compression process cp, 1.005 kJ/kg Kand y = 1.4 For combustion andexpansion processes: cp,-1.15 kJ/kg Kand y- 1.3334

Given that, Temperature of air, T=17 °C,Pressure of air, P=1.01 bar,Pressure ratio, rp=8:1Isentropic…

Answered: Air is drawn in a gas turbine unit at…

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Air is drawn in a gas turbine unit at 15°C and 1.01 bar and pressure ratio is 7: 1. The compressor is driven by the HP.

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

Air is drawn in a gas turbine unit at
15°C and 1.01 bar and pressure ratio
is 7: 1. The compressor is driven by the
HP.
turbine and L.P. turbine drives a
separate power shaft. The isentropic
efficiencies of compressor and the HP
and LP
turbines are 0.82, 0,85 and 0.85
respectively. If the maximum cycle
temperature is 610°C, calculate
3. The work ratio. 0.215
1. The pressure and temperature of the
gases entering the power turbine 654.4
K 2-The net power developed by the
unit per kg/s mass flow. 2.1 kw
4. The thermal efficiency of the unit.
18-87 Neglect the mass of fuel and
assume the following:
For compression process cp, 1.005 kJ/
kg Kand y = 1.4 For combustion and
expansion processes: cp,-1.15 kJ/kg K
and y- 1.333
4

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