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Abstract: Using phase change materials (PCMs) for passive cooling is an effective thermal management technique as they absorb and release large amount of latent heat. However, PCMs have low thermal conductivity and liquid leakage often occurs after the solid-liquid phase transitions. In this study, a Wood’s alloy/expanded graphite composite PCM was developed to achieve desirable thermal performance. The thermal conductivities of the composite samples were measured, based on a transient plane source method. Decreasing the Wood’s alloy content and compacting density would lead to an improvement in the thermal conductivity of the composite PCM.

Reference: Applied Thermal Engineering (2017), 122: 322-329

DOI: 10.1016/j.applthermaleng.2017.04.154