The document discusses combined cycle power plants (CCPPs), focusing on the integration of gas and steam power cycles. It explains the roles of the topping cycle, which provides exhaust heat, and the bottoming cycle, which utilizes that heat. CCPPs are noted for achieving high thermal efficiencies through this combined approach.

1. COMBINED CYCLE POWER
PLANT
Text Book : Thermodynamics, An Engineering Approach by Yunus Cengel
(8th
Edition)

2. COMBINED GAS–VAPOR POWER
CYCLES
■ In a combined cycle power plant, the exhaust
of one power cycle (mostly gas cycle) is utilized
as a source of heat for running another cycle
(mostly steam).
■ The cycle which provides exhaust heat is called
topping cycle, while the cycle which utilizes this
heat is called bottoming cycle.
■ High thermal efficiencies are achieved by
utilizing CCPPs (Combined Cycle Power Plants).

4. Problem: