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This paper focuses on the creation of a new composite phase change material, paraffin-silica (SiO2)/graphene oxide (GO) through a two step process for potential use as a heat transfer fluid in direct absorption solar collectors. The resulting composite is composed of spherical capsules, and has the GO embedded within the SiO2 shell. Thermal conductivity testing with the TPS instrument revealed that the composites had excellent thermal characteristics and stability. ...
