What is Gas Turbine Power Plant?

The gas turbine obtained its power by utilizing the energy of burnt gases and gases which are at high temperature and pressure by expanding through the several rings of fixed and moving blades.

Simple Open Cycle Gas Turbine/Air Standard Brayton (Joule) Cycle

	Process	Component
1 – 2	Isentropic compression	Compressor
2 – 3	Isobaric heat adition	Combustion chamber
3 – 4	Isentropic expansion	Turbine
4 – 1	Isobaric heat rejection	To atmosphere

• Thermal Efficiency

Effect of Modification on Performance of Simple Gas Turbine Cycle

Modification	Work output	Thermal Efficiency
Regeneration	No effect	Increases
Intercooling	Increases	Decreases
Reheat	Increases	Decreases
Reheat + Regeneration	Increases	Increases
Intercooling + Regeneration	Increases	Increases
Reheat + Intercooling	Increases	Decreases
Reheat + Intercooling + Regeneration	Increases	Increases

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