Design and experimental study of a 30 kWe adjustable solar simulator delivering high and uniform flux

•A 30 kWe high-flux simulator with controllable solar-like irradiation is designed.•A non-coaxial ellipsoidal reflector is specifically designed to homogenize the flux.•The maximum radiant power of 9.534 kW and peak flux of 8.568 MW·m−2 are achieved.•The system efficiency of 26.22–31.78% is reached...

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