A numerical model and analysis has been performed on a state-of-the art one shot heat sink including an eicosane/carbon nanotubes (CNT) system of nano-enhanced phase change material (NEPCM). The nanoparticles, dispersed in the PCM liquid phase, can form a network of interconnected ballistic heat transport lines, thus increasing the thermal conductivity of the PCM by almost two orders of magnitude. The results show that the heat sink can be operated with a 40% higher heat load, for an extra 42% time, or with a 29% lighter mass, before the electronics reach the allowable maximum temperature.

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