| 摘要 |
The solar panel comprises metal box (10), a layer of mineral wool insulation (20), the outer surface of which is provided with a layer of aluminium reflector foil (30). Located within cavity (35) is absorber (40). Low emittance coated toughened glass (50) is placed on top of the solar panel and held in place by extrusion (60) and silicon glazing seal (70). The metal box is formed by pressing a sheet of metal into the shape required. Insulation (20) has a high thermal conductivity such as rockwool with a density of 100 kg/m<3>. Absorber 40 comprises a matrix of fibres (80) which may be either glass fibres or steel wool fibres. Each fibre (80) is typically 3 to 4 metres in length, between 25 to 50 microns in diameter and does not contain chaff or dust and are bonded together with melamine formaldehyde having black dye. <IMAGE> |
