Solar Collector

A flat-plate solar collector is one of the three main types of solar collectors ,which are key components of active solar heating systems The other main types are evacuated tube collectors and bath solar heaters(also called integrated collector-storage systems).
Flat-plate collectors are the most common solar collectors for use in solar water-heating systems in homes and in solar space heating .A flat-plate collector consists basically of an insulated metal box with a glass or plastic cover (the glazing) and a dark-colored absorber plate. Solar radiation is absorbed by the absorber plate and transferred to a fluid that circulates through the collector in tubes . in an air-based collector the circulating fluid is air, whereas in a liquid-based collector it is usually water .
Flat-plate collectors heat the circulating fluid to a temperature considerably less than that of the boiling point of water and are best suited to applications where the demand temperature is 30-70℃（86-158°F）and/or for applications that require heat during the winter months.
Flat-plate collectors can be mounted in a variety of ways, depending on the type of building, application, and size of collector. Options include mounting on a roof, in the roof itself, or free-standing.

Cu – Al Combined Flat-plate collector Specifications

Coating of absorber plate Anodized selective Coating
External dimensions 2000*1060*80mm
Glass cover-plate 4mm tempered glass
Sunny-day water yield 75-100kg/㎡
Pressure-resistance 600Kpa/6.0bar(static pressure)
Insulating layer 30mm glass wool
Back plate 0.45mm galvanized sheet metal
Collector day lighting area effective absorber area 2㎡
Material of frame profiled Al-Mg alloy bar,80mm wide
Color and finishing of frame white-colored electrophoretic coating, air tight
Make SUN NUMEN
Origin Guangzhou
Lifetime No less than 15 years