Design potential using the HBC cycle.

The response curve of the solar Hybrid Brayton Cycle shows the unusual effect of turndown. This curve comes about by the inherent ability of the HBC to internally control the temperature entering the turbine in reaction to the solar energy received. This characteristic can be used to create a concentrated solar HBC system for practical use. 

 A solar HBC system can be designed to produce maximum rated power at a solar radiation level that is 60% of the maximum solar radiation for that location. This allows full power to be generated through full daylight, full seasons and even less than ideal weather conditions. It allows full power to be generated for more hours annually and thus delivers more total power to the user.

 As the solar radiation increases beyond the design level of the system, full power is maintained. The HBC system maintains its optimum turbine inlet temperature and prevents equipment damage. Additional energy collected is rejected to the coolant. The HBC is a stand-alone solar power system that operates for more full power hours than any other system. The graph below shows the response curve for this design approach.