EUCLID TECHLABS SOLAR CONCENTRATOR
In order to achieve economical generation of electricity with a Concentrating Solar Power (CSP) plant, the receiver (device that collects the energy from the mirror arrray) must satisfy a number of rigorous requirements. High operating temperatures (>650 degrees C), high efficiencies (>90%), and long working lifetimes (>10,000 thermal cycles) are critical for a receiver in order to lower the levelized cost of electricity to 6 cents/kWh. Conventional techniques for coating the receiver do not achieve all three requirements simultaneously. Euclid Techlabs, in collaboration with the Corrosion Group of Argonne National Laboratory, is developing a high-temperature corrosion-based process to form a dense metal-oxide composite film on standard commercially available alloy surfaces as a selective absorber.
The new coating material will be self-healing or capable of in-situ recovery without the need to remove the receiver if the cermet film is damaged. This novel corrosion-based method will allow us to prepare excellent absorber materials with high reliability and durability.