A solar boiler and a system including the solar boiler

Abstract

A solar boiler for the production of electrical and thermal energy comprises a lens system for concentrating solar radiation and for heating the heat transfer medium in the accumulator and at least one device for producing electrical energy from the heated heat transfer medium. The lens system is formed by a Fresnel lens assembly (8) arranged on a positionable carrier, the accumulator is formed by a sand storage (2), the heat transfer medium is sand (17) in the sand storage (2), and the first device for producing electrical energy is at least one Stirling engine (1) connected to a first electrical energy generator. An air duct (18) passes through the sand storage (2), the inlet and outlet of which are led outside the sand storage (2), and at the inlet the air duct (18) is fitted with a drive propeller (12) connected to a second electrical energy generator (6). The subject of the solution is also a system for producing electricity and / or heat comprising this solar boiler.