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Abstract: Sebacic acid (SA) can be absorbed into the pores of expanded graphite (EG) to form a SA/EG composite phase change material (PCM). There is no chemical interaction between the SA and EG, they are merely integrated. The optimal amount of SA was found to be 85 wt.% of the total mixture. The 85 wt.% composite had a phase change temperature of ~ 128°C, with a latent heat of ~ 187 J/g. The thermal conductivity of the composite is measured using the TPS technique. The SA/EG composites were also tested for their physical stability, and these properties, along with the thermal improved thermal conductivity make the SA/EG composite promising for use in latent storage systems.

Reference: Solar Energy, 99 (2014) 283-290

DOI: 10.1016/j.solener.2013.11.018