Using ceramic materials for receivers allows high working temperatures or the use of highly corrosive heat transfer media within high temperature solar receivers.
One specific type of a ceramic receiver was investigated in the BMU-sponsored project CERREC. Part of the project work was to analyse the characteristics and performance of the receiver. Subsequently measure were taken to optimize it hydraulically and thermo-mecanically.
Within a ceramic plate receiver compressed air can be heated to over 1000°C. For this purpose, a pressure-tight ceramic module is heated with concentrated solar radiation (figure 1, left). Then, the heat is transferred to the compressed air that flows through the ceramic module.
By interconnecting multiple modules, receivers can be designed for different power levels (Figure 1, right). Also, a combination of a ceramic receiver with another receiver type (e.g, tube receiver) is possible (Figure 2).