Assessment of Solar Power Tower Driven Ultrasupercritical Steam Cycles Applying Tubular Central Receivers With Varied Heat Transfer Media

摘要: For clean and efficient electric power generation, the combination of solar towers (SPTs) with ultrasupercritical steam cycle plants could be next development step. The methodology European concentrated thermal roadmap study was used to predict annual performance cost reduction potential this option applying tubular receivers various appropriate high temperature heat transfer media (HTM). assessment, an analytical model in a parametric 360 deg cylindrical central receiver developed examine receiver's efficiency characteristics. characteristics, which are based on different irradiation levels relative design point, are, then, interpolate hourly calculation one typical year that is defined by real measurements direct normal irradiance ambient temperature. Applying assumptions from literature, levelized electricity costs (LEC) were estimated for each considered SPT concept compared reference case, scale-up state art molten salt concept. level all concepts case 50 MWel. sensitivity specific LEC evaluated variation. No detailed evaluation done storage but comparable assumed cases. results indicate significant up 15% liquid metal HTM processes. Due studies number panels capacity, also optimal values these parameters concerning minimal LEC.