Retrofittable Solutions Capability for Gas Turbine Compressors

The increasing introduction of renewable energy capacity has changed the perspective on operation conventional power plants, introducing necessity reaching extreme off-design conditions. There is a strong interest in development and optimization technologies that can be retrofitted to an existing plant enhance flexibility as well increase performance lower emissions. Under framework European project TURBO-REFLEX, typical F-class gas turbine compressor designed manufactured by Ansaldo Energia been studied. Numerical analyses were performed using TRAF code, which state-of-the-art 3D CFD RANS/URANS flow solver. In order assess feasibility minimum environmental load operation, utilizing reduction outlet mass-flow rate, with safe stability margin, two different solutions have analyzed: blow-off extractions extra-closure Variable Inlet Guide Vanes. numerical steady-state results are compared discussed relation experimental campaign, was Energia. purpose identify implementation opportunity thermal fleet.