To improve the thermal performance of phase change materials (PCMs), graphite nanofibers were embedded into a paraffin PCM. The thermal effects of graphite fiber loading levels and graphite fiber type (herringbone, ribbon, or platelet) during the melting process were examined for a volume system with power loads between and . It was found that the maximum system temperature decreased as graphite fiber loading levels increased and that the results were fiber-structure dependent.
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