A high-temperature solar source of heat for a thermophotovoltaic generator: Theory and experiment

The selection of the geometrical parameters of a tungsten receiver-emitter for a solar thermophotovoltaic generator with a searchlight-type paraboloid mirror is substantiated theoretically. An experimental instrument equipped with an evacuated receiver of solar radiation is presented, and an experimental setup equipped with a concentration system tracking the Sun is described. It is confirmed that the calculated estimates that were obtained are correct, and it is demonstrated that the receiver can be heated to a temperature of 1900 K using a single-mirror concentrating system.