Heliovis Ag

Johannes Hoefler

Felix Tiefenbacher

A cushion-shaped concentrator for concentrating solar radiation in an absorber includes a transparent membrane that faces the incoming radiation and includes a reflector membrane which reflects the incident radiation in the direction of the absorber. The transparent membrane and the reflector membrane form an outer casing for a chamber filled with a gas at overpressure. Tension elements are arranged between the transparent membrane and the reflector membrane The tension elements produce constrictions on the reflector membrane that separate a plurality of distinct concavely curved sections of the reflector membrane.

Cushion-shaped concentrator including a plurality of absorbers disposed in a single chamber with a gas therein at overpressure

Floating platform () having a flat cover element () and a sealing element (), which is connected to the cover element (), makes a sealing contact with a liquid surface () during operation and encloses a closed cavity () together with the cover element () and the liquid surface () or a bottom surface, in which cavity () an overpressure which supports the cover element () can be produced by a compressed-air production apparatus ('), with at least one circumferential wall () being provided as the sealing element (), and having a sealing section (&#x2032;) which projects into the liquid during operation.

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Birsfelden, Switzerland

Johannes Hoefler