COMPARISON UNDER A SIMULATED SUN OF TWO BLACK-NICKEL-COATED FLAT-PLATE SOLAR COLLECTORS WITH A NONSELECTIVE BLACK-PAINT-COATED COLLECTOR

作者: Nasa Technical

DOI:

关键词: Inlet temperatureAbsorption (electromagnetic radiation)NickelBlack paintInletThermalMineralogyMaterials scienceComposite materialAir conditioningFlux

摘要: A performance evaluation was made of two, black-nickel-coated, flat-plate solar collectors. Collector determined under a simulated sun for wide range inlet temper-atures, including the temperature required solar-powered absorption air conditioning. For basis comparison 6erformance test on traditional, two-glass, nonselective, black-paint-coated, collector. Performance curves and parameters are presented to point out importance design variables which determine an efficient black-nickel-coated collector found be good performer at conditions expected This attained thermal ef-ficiency 50 percent 366 K (200° F) incident flux 946 watts/ (300 Btu/hr-ft2).