Exploitation of thermochemical cycles based on solid oxide redox systems for thermochemical storage of solar heat. Part 2: Redox oxide-coated porous ceramic structures as integrated thermochemical reactors/heat exchangers

摘要

The enthalpy effects of reversible chemical reactions can be exploited for the so-called thermochemical storage of solar energy. Based on the characteristics of the oxide redox pair Co3O4/CoO as a thermochemical heat storage medium and the advantages of porous ceramic structures like honeycombs and foams in heat exchange applications, the idea of employing such structures coated with a redox material like Co3O4 as a hybrid sensible-thermochemical solar energy storage system in air-operated concentrated solar power plants has been set forth and tested.