Thermal Simulation and Efficiency of a Hermetically Sealed Flat Plate Collector with a Fully Adhesive Edge Bond
Abstract
This research work deals with the thermal analysis of a hermetically sealed flat plate collector with a gas- filled cavity between absorber and glazing. Published scientific work in this field is discussed and compared to own laboratory testing and simulation results. The impact of the mechanical absorber deflection for small gap sizes between absorber and glazing on the collector efficiency are investigated. A parameter study for gas-filled collectors with a fully adhesive edge bond was conducted. Four different types of functional models were built and tested to validate the simulation model. Impacts affecting the thermal efficiency such as the absorber deflection of solar collectors with a fully adhesive edge bond were analysed and evaluated. A system simulation was conducted analysing the components temperatures and the annual collector yield.
Keywords
Solar thermal, absorber, gas-filled, edge bond,