Gas-steam combined cycle with parallel arrangement
Rehabilitation of thermal power plants
Article REF: BM4189 V1
Gas-steam combined cycle with parallel arrangement
Rehabilitation of thermal power plants

Author : George DARIÉ

Publication date: April 10, 2005 | Lire en français

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5. Gas-steam combined cycle with parallel arrangement

5.1 Principle

PPCC involves using two independent sources of thermal power for the steam turbine. The main source is usually a conventional steam boiler, and the second is a recovery boiler using exhaust fumes from a gas turbine. One difference with the CCFF is that the existing steam boiler undergoes no fundamental modification.

One or more TG+CR units can be arranged in parallel with the original system in two different ways :

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