Energy and Buildings, Vol.62, 15-17, 2013
A building integrated solar collector: All-ceramic solar collector
A type of all-ceramic flat plate solar collector is introduced. These all-ceramic solar collectors are made from ordinary ceramic and V-Ti black ceramic. The solar absorptance of black ceramic coatings is in the range of 0.93-0.97. The all-ceramic solar collector is characterized by low cost, long lifetime, no attenuation of absorptance, and building integration. The word "integration" means not only that the solar elements are used as architectural elements in attractive, visible (or invisible), and not too costly ways, but also that the solar collectors should have the same lifetime with the building. They should replace other building elements or share roof materials with building roof. For example, they can act as balcony railings, or share the insulation layer. When the solar thermal collectors act as balcony railings, the thermal efficiency is about 471%. When solar collectors integrate with pitched building roofs, the thermal efficiency of all-ceramic solar system is more than 50%. (c) 2013 Elsevier B.V. All rights reserved.