26th International Conference on Concentrating Solar Power and Chemical Energy Systems - SolarPACES 2020, Freiburg im Breisgau (Germany) Online. 28 septiembre - 02 octubre 2020
Summary:
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.
Spanish layman's summary:
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).
English layman's summary:
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).
Keywords: Solar Thermal Power Plants; Supercritical CO2; Molten salt; Heat exchanger; Compact Honeycomb Heat Exchanger
DOI: 
https://doi.org/10.1063/5.0085730
Publication date: September 2020.
Citation:
Montes, M.J., Linares, J.I., Abbas, R., Cantizano, A., Barbero, R., Porras, J., 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 September - 02 October 2020.
IIT-20-237C
