DE2831927A1 - SOLAR COLLECTOR HOUSING - Google Patents

Description

The invention relates to a solar collector housing.

Flat-plate collectors are usually made up of a part called a housing or frame, in which an absorber board is integrated Inlet and outlet lines are introduced and one or more transparent covers are built.

With these collectors, for obvious reasons, an attempt is made to strip the frame as well as possible.

Foaming with polyurethane is known, for example Fill up with glass wool, see for all DE-OS 26 22 008 or DE-OS 26 16 874.

Two things are necessary for this. On the one hand, a frame with sufficient load-bearing capacity must be created to accommodate both the collector system to be able to keep stable itself as well as the use as a constructive element, e.g. in house construction as a roof cover, to be able to effect. On the other hand, the insulating material must be introduced in a further step and connected to the frame, without the inclusion of the absorber board, the supply and discharge lines and the outer covers being hindered.

The manufacture of such collectors and the material to be used are extremely detrimental to the cost.

In the endeavors to utilize solar energy, despite multiple intensive efforts, the greatest possible way is still competitiveness with other types of energy is not satisfactory solved. The investments for systems using solar energy in the low or high temperature range are too high, conditional by the complexity of the constructions and by the

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909885/0370

Choice of the materials used to achieve as loss-free as possible transfer of energy.

The object of the invention is to provide a solar collector housing to create a casting that easily meets both the requirements has grown in both load-bearing capacity and thermal insulation capacity.

This object is achieved in that the housing is made with aggregates provided light lightweight concrete with high thermal insulation properties.

The advantages are as amazing as they are easy to implement. Due to the recognized need for improvement for decades ongoing tests with all possible materials have always bypassed the use of lightweight concrete, although here, in addition to the known load-bearing capacity of concrete, thermal conductivities are in the order of magnitude of those of pure insulation materials (see "DYCKERHOFF ZEMENT" reprint 73-2 (1973) Production is the simplest in mass production using known casting processes, Shaking method or similar feasible. Operating times in the order of magnitude of more than 10 years that were previously difficult to achieve can be brought about cheaply. The weather resistance and low thermal expansion are further decisive plus points.

Although here primarily on collectors in the low temperature range is aimed, there is also advantageous application in the high temperature range as spherical or polygonal receivers in concentrating systems of a known type.

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Claims (2)

283Ί927 MESSERSCHMITT-BÖLKOW-BLOHM SOCIETY LIMITED LIABILITY MUNICH Ottobrunn, 07/17/78 BT01 Froh / bk 8377 Solar collector housing PATENT CLAIMS .; Solar collector housing, characterized that the housing is made of lightweight concrete with aggregates and high thermal insulation properties. 2. Solar collector housing according to claim 1, characterized that the housing with all for the inclusion of the other components such as absorber board, covers, Inlets and outlets, recesses and the like can be equipped in the manufacturing process. 909885/0370