A receiver system for a Fresnel solar plant is provided. The system includes an absorber tube defining a longitudinal direction and a mirror array that runs parallel to the longitudinal direction. The mirror array has a mirror-symmetrical curve profile having at least one top apex for concentrating light beams onto the absorber tube. The mirror array has ventilation holes in the region of the apex.

A device is provided for the air-based solar thermal generation of process heat in order to assist in drying processes. The device may add the solar-thermally generated hot air as a function of the relative temperature of the solar-thermally generated hot air as a partial flow of the process air generated by other systems.

A center of gravity Q1 of a mirror structure 31, which has a plurality of mirrors 32, is located between the plurality of mirrors 32. A driving mechanism 40 that rotates the mirror structure 31 includes a first rotational shaft 52 that has a first rotational axis A1 as a central axis and is supported by a supporting base 80 to be rotatable, a first drive device 60 that rotates the first rotational shaft 52, a second rotational shaft 42 that has the mirror structure 31 fixed thereto, has a second rotational axis A2 which is orthogonal to the first rotational axis A1 as a central axis, and is mounted on the first rotational shaft 52 to be rotatable, and a second drive device 45 that rotates the second rotational shaft 42. The center of gravity Q1 of the mirror structure 31 is located in the first rotational shaft 52 and in the second rotational shaft 42.