HRSG 성능 분석을 통한 발전효율 최적화 방안 연구

With the thousands of Heat Recovery Steam Generators(HRSGs) delivered worldwide over the last decade or so, it is operating the peak load on daily start-stop, weakly start-stop, taking advantage of various startup-shutdown types such as Cold ambient start, Cold start, Warm start, Hot start. But, these operating process bring on thermal deformation caused by heat transfer efficiency decrease, high temperature exhausted gas leakage, fatigue damage, etc. So, through this study, we tried to offer the preventive measure toward performance deterioration by such sectional heat duty calculation, structural observation, performance valuation of HRSGs in operation, and contribute to life extension for existing facilities.