Optical properties of liquids for direct absorption solar thermal energy systems
作者： Todd P. Otanicar , Patrick E. Phelan , Jay S. Golden
DOI: 10.1016/J.SOLENER.2008.12.009
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摘要: Abstract A method for experimentally determining the extinction index of four liquids (water, ethylene glycol, propylene and Therminol VP-1) commonly used in solar thermal energy applications was developed. In addition to index, we report refractive indices available within literature these fluids. The final value reported is solar-weighted absorption coefficient fluids demonstrating each fluid’s baseline capacity absorbing energy. Water shown be best absorber fluids, but it still a weak absorber, only 13% These values represent potential fluid utilized direct collector.
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