Category: Transient Plane Source
Abstract: Increasing the thermal conductivity of an organic phase change material, all the while maintaining a high phase change enthalpy, is a difficult task. In this study, researchers took 1-tetradecanol/Ag nanowires composites, containing various wt% of Ag nanowires, and tested their thermal conductivities and phase change enthalpies. The results suggest the PCM composite containing 62.73 wt% of Ag nanowires is the most promising candidate for thermal conductivity enhancement of organic phase change materials, as it showed a remarkably high thermal conductivity of 1.46 W/mK, while still maintaining a reasonably high phase change enthalpy of 76.5 J/g. Researchers deemed this behaviour possible as fewer thermal conduct interfaces are present, alongside a high aspect ratio of Ag nanowires.
Reference: Journal of Thermal Analysis and Calorimetry, 101, 1 (2010) 385-389