Abstract:

The solar thermal power generation usually takes the water-medium heat absorption as the first generation, the molten salt heat absorption as the second generation, and the Braden circulation system using air, supercritical carbon dioxide or solid particles as the medium is called the third generation of solar heat power system. Through the use of air or ceramic particles as a heat-absorbing medium, the use of dry heat storage media such as refractory bricks and ceramic materials for large-scale heat storage, can improve system efficiency and reduce costs, the system's thermal storage capacity to ensure that the power station at any time according to power grid requirements for scheduling; the system uses standardized module design, through the factory production, power plant design, equipment production, installation, commissioning and operation are simple, the system stored heat can be used for food processing, drying, agricultural applications; according to the United States DOE research, modules with heat storage capability Equipped with a small gas turbine for quick start-up and shutdown, could improve grid voltage and frequency.

Key words: distributed power, solar heat power, brayton circulation, volumetric receiver, modular, thermal storage, grid stabilization