Surrogate-based optimizations of parabolic trough collectors arrays with varying geometry operating with nanofluids

Abstract Solar energy has emerged as a leading player in current scenarios promoting the decarbonization of energy matrices. Among the methods of harnessing this energy potential, concentrating collectors stand out as the most well-established technology, with the parabolic trough collector (PTC) dominating the market. Among the research efforts aimed at enhancing the heat transfer of PTCs, the dispersion of nanoparticles in heat transfer fluids (HTF) has shown improvements of up to 27% in colle