PERFORMANCE SIMULATION OF HEAT-RECOVERY STEAM-GENERATORS IN A COGENERATION SYSTEM

The performance simulation of heat recovery steam generators in a coge neration system has been investigated to see the effect of pinch and a pproach points on steam generation and also on temperature profiles ac ross the heat recovery steam generator. The effects of operating condi tions on steam production and also on exit gas temperature from the he at recovery steam generator are discussed. Low pinch point results in improved heat recovery steam generator performance due to reduced irre versibilities. The supplementary firing enhances the steam production. (C) 1998 John Wiley & Sons, Ltd.