Energy Procedia · 2012 · 75 citations · 4 references
EngineeringMechanical EngineeringEnergy SystemsHeat TransferRenewable Energy SystemsEnergy ConversionHeat FlowSolar Energy SystemsSolar Thermal SystemsDevice EfficiencyFlat Plate SystemsFlat-plate CollectorsFlow Rate DependenceLaboratory Test ValidationPower Conversion EfficiencySolar Thermal HeatingVolumetric Flow Rate
Two flat plate solar collectors for solar heating plants from Arcon Solvarme A/S are tested in a laboratory test facility for solar collectors at Technical University of Denmark (DTU). The collectors are designed in the same way. However, one collector is equipped with an ETFE foil between the absorber and the cover glass and the other is without ETFE foil. The efficiencies for the collectors are tested at different flow rates. On the basis of the measured efficiencies, the efficiencies for the collectors as functions of flow rate are obtained. The calculated efficiencies are in good agreement with the measured efficiencies.
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