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Flat plate collector. Solarflachkollektor

Patent:

Abstract

The invention refers to a flat solar collector with an absorber plate, which is arranged on a support and is covered by a transparent window, between which and the plate there is an air space. The previously known structures of this type had the disadvantage that the thermal expansion of the enclosed air caused considerable difficulties. The purpose of the invention is therefore to create a collector, which can be used on the modular system, retains its properties and is safe in spite of the great temperature variations. According to the invention this problem is solved by providing a compensating space in the collector, which is separated by a diaphragm from the airspace between the plate and the covering window. The airspace therefore remains sealed against the atmosphere, so that no dirt, corrosion of the inside and no condensation can reduce the efficiency of the collector. A rise in pressure due to an increase in temperature is immediately reduced by expansion of the diaphragm, which enters the compensation space. In order to increase the pressure in the airspace above the plate for increases in temperature, the compensation space is connected to the atmosphere. The diaphragm can be mirrored on the  More>>
Authors:
Publication Date:
Mar 29, 1979
Product Type:
Patent
Report Number:
DE 2738603; A
Reference Number:
EDB-84-035102
Subject:
14 SOLAR ENERGY; FLAT PLATE COLLECTORS; DESIGN; SAFETY ENGINEERING; COVERINGS; SOLAR ABSORBERS; ENGINEERING; EQUIPMENT; SOLAR COLLECTORS; SOLAR EQUIPMENT; 141000* - Solar Collectors & Concentrators
OSTI ID:
5391852
Country of Origin:
Germany
Language:
German
Availability:
Deutsches Patentamt, Muenchen (Germany, F.R.).
Submitting Site:
HEDB
Size:
Pages: 15
Announcement Date:

Patent:

Citation Formats

Raab, N. Flat plate collector. Solarflachkollektor. Germany: N. p., 1979. Web.
Raab, N. Flat plate collector. Solarflachkollektor. Germany.
Raab, N. 1979. "Flat plate collector. Solarflachkollektor." Germany.
@misc{etde_5391852,
title = {Flat plate collector. Solarflachkollektor}
author = {Raab, N}
abstractNote = {The invention refers to a flat solar collector with an absorber plate, which is arranged on a support and is covered by a transparent window, between which and the plate there is an air space. The previously known structures of this type had the disadvantage that the thermal expansion of the enclosed air caused considerable difficulties. The purpose of the invention is therefore to create a collector, which can be used on the modular system, retains its properties and is safe in spite of the great temperature variations. According to the invention this problem is solved by providing a compensating space in the collector, which is separated by a diaphragm from the airspace between the plate and the covering window. The airspace therefore remains sealed against the atmosphere, so that no dirt, corrosion of the inside and no condensation can reduce the efficiency of the collector. A rise in pressure due to an increase in temperature is immediately reduced by expansion of the diaphragm, which enters the compensation space. In order to increase the pressure in the airspace above the plate for increases in temperature, the compensation space is connected to the atmosphere. The diaphragm can be mirrored on the side towards the absorber, which makes the diaphragm into an insulating element, as it reflects radiated heat from the absorber.}
place = {Germany}
year = {1979}
month = {Mar}
}