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Questions and Answers
What is the purpose of a regenerator in a gas turbine?
What is the purpose of a regenerator in a gas turbine?
- To improve cycle efficiency by recovering some of the heat from exhaust gases (correct)
- To increase the amount of fuel required to produce the same load
- To reduce the overall plant capacity
- To cool the compressed air before it enters the combustion chamber
Where is the regenerator placed in the gas turbine layout?
Where is the regenerator placed in the gas turbine layout?
- After the combustion chamber
- In the airflow before the compressor (correct)
- In the steam boiler
- Before the exhaust gases leave the turbine
How does a regenerator reduce the amount of fuel required to produce the same load?
How does a regenerator reduce the amount of fuel required to produce the same load?
- By reducing the efficiency of the compressor
- By increasing the temperature of the exhaust gases
- By recovering heat from exhaust gases to heat the compressed air (correct)
- By cooling the compressed air before it enters the combustion chamber
What is one way gas turbines can be used in conjunction with steam boilers?
What is one way gas turbines can be used in conjunction with steam boilers?
What is the combined arrangement of steam system and gas turbine commonly referred to as?
What is the combined arrangement of steam system and gas turbine commonly referred to as?
What is the purpose of placing the boiler after the gas turbine in some cogeneration designs?
What is the purpose of placing the boiler after the gas turbine in some cogeneration designs?
What is the function of the heat recovery steam generator (HRSG) in the combined cycle plant?
What is the function of the heat recovery steam generator (HRSG) in the combined cycle plant?
What is the main advantage of combined cycle plants in terms of efficiency?
What is the main advantage of combined cycle plants in terms of efficiency?
What drives the additional electrical power generator in a combined cycle plant?
What drives the additional electrical power generator in a combined cycle plant?
Why are combined cycle plants excellent for short term maximum power demand ('peak' demand)?
Why are combined cycle plants excellent for short term maximum power demand ('peak' demand)?
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