Solar Thermal Collector

The Solar thermal collector is the component which transfers the sun's powerful rays into heat energy which is used to heat water. This can be used (among other things) to heat your buildings, pool, and water supply.

Shown above is a flat plate collector which is made from an aluminium housing. An array of absorber fins is connected to two manifolds at the top and bottom. The collector is sealed with a low iron sheet of tempered glass. This glass is tempered so that it can withstand a hailstorm. The inside of the collector housing is filled with mineral wool or stone wool to prevent and minimize heat loss. About 85% of solar collectors being sold at the present time are flat plate collectors. Tube collectors are also available, and approximately 15% more efficient. These are more conducive to warm climates, because they can be damaged more easily by ice and snow. Their cost is typically 35%-45% above flat plate collectors.

Absorber

The absorber is part of the solar collector. This absorber captures the rays of the sun and transfers the heat to the solar storage tank via a solar medium, where it is released as heat (hot water). The absorber is normally made from copper or aluminium sheeting. In order to gain the most heat, the absorber has a special coating to attract the sun's radiation. The selective coating reduces (prevents) reflection of heat outside of the collector. In this way, the gained heat transfers a higher output to the solar tank. Solar thermal means the direct heat is gained through the sunlight. Collectors contain and absorb heat and then transfer it by means of a propylene liquid to the solar tank. From this solar tank, warm water or heat is provided.

ArcSolar Selective Coated Collector

1.TECHNICAL DESCRIPTION

The ArcSolar Selective Coated Collector is suitable for forced circulation and natural circulation systems. Stand-alone and roof-mounted solutions can be applied easily by means of a proven modular mounting system. 

2. TECHNICAL DESCRIPTION OF THE COMPONENTS

2.1 Frame & Absorber

The frame is made of pure aluminium which is extremely durable to adverse climatic conditions. Full face absorber; headers and manifold are hard soldered and ultrasonically welded to the absorber sheet. Highly selective coated sheet cooper 0.2mm. 

2.2 Glass

Special tempered, 4 mm low-iron solar prismatic glass provides for better solar absorption.

3. Technical Data

Open a copy of the collector fact sheet here:

For additional information, please email us.