RECEIVER FOR CONVERTING CONCENTRATED SOLAR RADIATION.

摘要

PCT No. PCT/DE94/00187 Sec. 371 Date Oct. 25, 1995 Sec. 102(e) Date Oct. 25, 1995 PCT Filed Feb. 23, 1994 PCT Pub. No. WO94/19652 PCT Pub. Date Sep. 1, 1994A high-temperature receiver for converting concentrated solar radiation has a channel with an inlet and an outlet. An areal air-permeable support element is connected to the inlet. An absorber structure for absorbing solar radiation is supported by the support element and is made of an air-permeable mat material. Air is transported as a cooling medium through the absorber structure in a flow direction identical to a direction in which the solar radiation hits the absorber structure. The mat material has a first density in an area where the solar radiation enters the absorber structure and a second density in an area where the absorber structure faces the support element. The first density is lower than the second density. The first density favors absorption of the solar radiation and the second density provides for a secure fastening of the absorber structure on the support element.