Characterization of Novel Mid-temperature CPC Solar Thermal Collectors☆

摘要: Abstract In this paper we present the results and description of a system used to characterize performance ofmid-temperature solar thermal collectors without using flow rate or heat capacity measurements. For demonstration, implement testing stand mineral oil as transfer fluid. Twogenerations CPC assisted, non-tracking evacuated collector are tested up 230 °C presented. All three generations consist metal glass tubes. The show that byreducing resistance between fluid selective coating promoting higher concentration ratios concentrators, an tube array can achieve 50% efficiency at 200 degree Celsius under one sun condition.