26th International Conference on Concentrating Solar Power and Chemical Energy Systems - SolarPACES 2020, Freiburg im Breisgau (Germany) Online. 28 septiembre - 02 octubre 2020
Resumen:
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.
Resumen divulgativo:
Se propone un nuevo diseño de intercambiador primario para plantas termosolares que transfiere calor de las sales fundidas al CO2: compacto tipo panel de abeja (CHHE).
Palabras clave: Solar Thermal Power Plants; Supercritical CO2; Molten salt; Heat exchanger; Compact Honeycomb Heat Exchanger
DOI: 
https://doi.org/10.1063/5.0085730
Publicado en AIP Conference Proceedings, pp: 110006-1/110006-9, ISSN: 0094-243X
Fecha de publicación: 2020-09-28.
Cita:
M.J. Montes, J.I. Linares, R. Abbas, A. Cantizano, R. Barbero, J. Porras, Proposal and sizing of a molten Salt-to-sCO2 heat exchanger in supercritical solar thermal power plants, 26th International Conference on Concentrating Solar Power and Chemical Energy Systems - SolarPACES 2020, Freiburg im Breisgau (Germany) Online. 28 septiembre - 02 octubre 2020. En: AIP Conference Proceedings, vol. 2445, nº. 1, ISSN: 0094-243X
