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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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A gas turbine engine operates on the simple Brayton cycle with
regeneration, as shown in figure below. Air enters the compressor of this
unit at 100 kPa and 27 °C. The compressor pressure ratio is 6 and hot
gases enters the turbine at 800 °C. The isentropic efficiencies of the
compressor and the turbine are 85% and 90%, respectively. Pressure
losses across the combustion chamber was found to be 0.1 bar. If the
mass flow rate of air is 100 kg/s and LCV of fuel is 42000 kJ/kg,
determine the following:
1- The power output (in MW);
2- The regenerator effectiveness;
3- A/F ratio;
4- Thermal efficiency;
5- The specific fuel consumption.
1.4 and Cpair
kJ
1.005
Take: For air: Yair =
||
kg. K
kJ
For gas: Ygas = 1.333 and Cpaas = 1.135
kg. K
Heat exchanger
T4 – T5 = 15 °C
Comb.
Compressor
Turbine
Transcribed Image Text:A gas turbine engine operates on the simple Brayton cycle with regeneration, as shown in figure below. Air enters the compressor of this unit at 100 kPa and 27 °C. The compressor pressure ratio is 6 and hot gases enters the turbine at 800 °C. The isentropic efficiencies of the compressor and the turbine are 85% and 90%, respectively. Pressure losses across the combustion chamber was found to be 0.1 bar. If the mass flow rate of air is 100 kg/s and LCV of fuel is 42000 kJ/kg, determine the following: 1- The power output (in MW); 2- The regenerator effectiveness; 3- A/F ratio; 4- Thermal efficiency; 5- The specific fuel consumption. 1.4 and Cpair kJ 1.005 Take: For air: Yair = || kg. K kJ For gas: Ygas = 1.333 and Cpaas = 1.135 kg. K Heat exchanger T4 – T5 = 15 °C Comb. Compressor Turbine
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