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.
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](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fde6de531-4be3-4404-b27f-900157bb1788%2F4465ec10-f8a6-43f2-ad29-b85b612927f9%2Fd5yuzb_processed.jpeg&w=3840&q=75)
Transcribed Image Text: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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