Solar collector with large absorber surface - consists of extruded plastics absorber and synthetic transparent foil tensioned on frame in front of it

摘要

The solar collector has an absorber (1) made of a plastics material, and a light-transparent element in front of it. This consists of a synthetic foil (10). There are also devices (12) to tension the foil, and maintain it at a distance to the absorber. The absorber consists of a ribbed plate forming individual channels, and two tube sections. These form connection channels between the individual channels. The tube sections are slotted. The ends of the ribbed plate project into the slots. The foil is tightened over a frame (8) etc. The frame extends along part of the absorber circumference, and projects over the absorbent surface. USE/ADVANTAGE - Solar collector with large absorber surface is for use in e.g. desalination plants. It is esp. economical to mfr. even with large absorber surface.