Solar collector
A solar collector has an external frame on top of which a collector cover is installed to overlie a collector plate secured to an internal frame which is installed within the external frame. The space between the collector cover and front of the collector plate comprises a first dead air space. The collector is ribbed, having a textured surface, and has a flat black coating applied to both the front and rear surface, thereof. A heat transfer chamber, having fluid communication with a forced airflow, is formed between the rear side of the collector plate and a heat reflective member. The heat reflective member is a rigid thermally insulating material having a heat reflective upper surface. The sides of the heat transfer chamber are bounded by the internal frame which is constructed from a rigid, thermally insulating material, and all seams of the chamber are caulked to provide an air tight chamber. A second dead air chamber is provided below the heat transfer chamber between the rear side of the reflective member and a backing member for the frame. An airflow is forced through the heat transfer chamber to carry away the heat trapped therein. The chamber is designed to induce turbulent, as opposed to laminar, airflow. The aforementioned ribbed and textured design of the collector plate breaks down laminar flow, as do baffles which are installed within the heat transfer chamber to introduce turbulence.
- Assignee:
- EDB-84-034989
- Patent Number(s):
- US 4407270
- OSTI ID:
- 5421756
- Resource Relation:
- Patent File Date: Filed date 4 Jun 1981; Other Information: PAT-APPL-270222
- Country of Publication:
- United States
- Language:
- English
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