FLAT SOLAR COLLECTOR HAVING VACUUM CHAMBERS

摘要

The invention relates to a flat solar collector comprising individual vacuum chambers. The invention is formed by two heads and a series of parallel tubes having high transmittance in the solar spectrum, which is disposed between the heads. The heads serve as vacuum chambers which cover the connecting part of the tubes of conducting material. In addition, the heads are provided with holes for the insertion of a check valve and a pressure gauge. Moreover, collector tubes are disposed inside the glass tubes and said collector tubes are in turn connected to collector plates, all under vacuum conditions which minimise convection losses. When the collector is configured in series it can raise the temperature of the working fluid to above 200° C. All of the above is performed in a simple, economical manner.