10 Questions
What is the purpose of a regenerator in a gas turbine?
To improve cycle efficiency by recovering some of the heat from exhaust gases
Where is the regenerator placed in the gas turbine layout?
In the airflow before the compressor
How does a regenerator reduce the amount of fuel required to produce the same load?
By recovering heat from exhaust gases to heat the compressed air
What is one way gas turbines can be used in conjunction with steam boilers?
Pressurize the boiler furnace with the air leaving the compressor
What is the combined arrangement of steam system and gas turbine commonly referred to as?
Combined cycle
What is the purpose of placing the boiler after the gas turbine in some cogeneration designs?
To recover the heat from the turbine exhaust
What is the function of the heat recovery steam generator (HRSG) in the combined cycle plant?
To produce steam for a steam turbine
What is the main advantage of combined cycle plants in terms of efficiency?
They can provide over 60% efficiency in power generation
What drives the additional electrical power generator in a combined cycle plant?
The steam turbine
Why are combined cycle plants excellent for short term maximum power demand ('peak' demand)?
They can be started up and shut down quickly
This quiz covers the layout and purpose of a regenerator in a gas turbine system, and its impact on cycle efficiency. It discusses how the regenerator recovers heat from the exhaust gases to improve the overall efficiency of the cycle.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
