| 摘要 |
PCT No. PCT/EP93/01877 Sec. 371 Date Feb. 7, 1994 Sec. 102(e) Date Feb. 7, 1994 PCT Filed Jul. 16, 1993 PCT Pub. No. WO94/02788 PCT Pub. Date Feb. 3, 1994.A solar device has an air receiver with a housing and an absorber connected within the housing. The absorber is heated by solar radiation. The absorber has an upstream side and a downstream side, wherein a stream of air is guided through the absorber from the upstream side to the downstream side and heated to generate heated air and wherein said heated air is cooled to produce useable heat energy and cooled air. A device for returning at least a portion of the cooled air as return air in a plurality of partial streams to the absorber is provided for guiding the partial streams through the absorber counter to the stream of air without mixing therewith from the downstream side to the upstream side. A device for deflecting the partial stream at the upstream side is provided for deflecting the partial streams toward the upstream side. |
