Receiver for solar-hybrid gas turbine and combined cycle systems

This paper describes the development status of a receiver system for solar air preheating of gas turbines. The system consists of modules of 350 kW no minal power, each built from a pressurized volumetric receiver and a second ary concentrator. It is designed to couple multiple modules together to obt ain the required power. A brief description of the components construction is given. In a first test phase the secondary concentrator was evaluated fo r performance. About 90 h of solar operation were collected with maximum po wer levels exceeding 400 kW. The design goat were successfully demonstrated , minor problems occurred with mirror glueing, Significant cost and efficie ncy improvements could be achieved by more sophisticated geometry and new m anufacturing techniques. Tests of a complete module are planned for July 19 98.