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July 20, 2022

Air-Fuel ratio in Gas Turbine - GATE ME '98

Find the required air-fuel ratio in a gas turbine whose turbine and compressor efficiency are 85% and 80% respectively. The maximum cycle temperature is 875 C. The working fluid can be taken as air (cp = 1.00 kJ/kg.K and ϒ = 1.4) which enters the compressor at 1 atm and 27 C. The pressure ratio is 4. The fuel used has a calorific value of 42000 kJ/kg. There is a loss of 10% of calorific value in the combustion chamber.

Answer:

Find the required air-fuel ratio in a gas turbine whose turbine and compressor efficiency are 85% and 80% respectively. The maximum cycle temperature is 875 C. The working fluid can be taken as air (cp = 1.00 kJ/kg.K and ϒ = 1.4) which enters the compressor at 1 atm and 27 C. The pressure ratio is 4. The fuel used has a calorific value of 42000 kJ/kg. There is a loss of 10% of calorific value in the combustion chamber.

air-fuel ratio in the gas turbine cycle or brayton cycle

#braytoncycle #gasturbine #gateTD #thermodynamics

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