Montes Pita, María José Linares Hurtado, José Ignacio Abbas, Rubén Cantizano González, Alexis Barbero, Rubén Porras Galán, José 2026-06-22T12:08:19Z 2026-06-22T12:08:19Z 2022-05-12 0094-243X https://doi.org/10.1063/5.0085730 http://hdl.handle.net/11531/110816 Artículos en revistas . Solar Thermal Power Plants (STPPs), based on supercritical CO2 (sCO2) cycles, seem to be a promising alternative to increase the global solar-to-electric efficiency. The most conventional scheme for this technology is a molten salt (MS) central receiver, working at high temperature (above 700°C), coupled to the sCO2 cycle. For this scheme it is proposed a new design of the source heat exchanger that transfers the thermal energy from the molten salt to the CO2: the Compact Honeycomb Heat Exchanger (CHHE), in which the molten salt goes through a larger circular duct that is surrounded by 6 smaller trapezoidal ducts, through which the sCO2 circulates. This paper is focused in the thermal model of this new heat exchanger, and a thermo- economic optimization for a selected supercritical STPP. application/pdf en-GB Creative Commons Reconocimiento-NoComercial-SinObraDerivada España http://creativecommons.org/licenses/by-nc-nd/3.0/es/ Revista: AIP Conference Proceedings, Periodo: 1, Volumen: 2445 , Número: 1; 110006, Página inicial: 1, Página final: 9 Proposal and sizing of a molten Salt-to-sCO2 heat exchanger in supercritical solar thermal power plants info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/openAccess . Power plants, Engineering thermodynamics, Associated liquids