STUDIES OF GAS-FILLED FLAT PLATE SOLAR COLLECTORS
Conference contribution, 2010
With a suitable gas filling used between cover glass and absorber in a flat plate solar collector, it is possible achieving better thermal performance at the same time as the distance between absorber and glass can be reduced. Though, even if there is no vacuum inside the box, there will be potential risks for exhaustion due to stresses depending on the gas volume varies as the temperature varies. This study found out that it is possible build such a collector with less material in the absorber and the tubes and still getting better performance, without risks for exhaustion.
Solar collectors – Modelling – Mechanical stresses – heated cavity