Under CopyrightZoschke, ThedaThedaZoschkeFrantz, C.C.FrantzSchöttl, PeterPeterSchöttlFluri, ThomasThomasFluriUhlig, R.R.Uhlig2022-03-1419.11.20192019https://publica.fraunhofer.de/handle/publica/40562210.1063/1.5117580For the evaluation of functional material developments in the EU-project RAISELIFE, a tool chain of ray tracing, thermal FEM simulation and dynamic system simulation has been created. Multi-year simulations allow considering degradation of optical parameters. With this tool chain, the thermal energy output of a reference plant with one non-selective and one generic selective coating was simulated. The LCOE (Levelized Cost of Electricity) was calculated based on these results. The LCOE of the selective coating is 2.6 % lower, if the same costs are assumed. Furthermore, the ideal recoating interval for the reference system was identified. Finally, it was demonstrated that dynamic system simulation shows benefits to evaluate in-service performance of functional materials as dynamic behavior of solar thermal power plants can change quite significantly, if another coating is used.enThermische Systeme und GebäudetechnikSolarthermiethermische Anlagentechnik621697conference paper