Category: Transient Plane Source
Author(s): Peng Qin, Shuangfeng Wang, Shuping Wang, Xiaohong Liu, Xiaoming Fang, Zhengguo Zhang
Keywords: differential scanning calorimetry, Differential scanning calorimetry (DSC), DSC, Fourier-Transform Infrared Spectroscopy, Fourier-Transform Infrared Spectroscopy (FT-IR), FT-IR, graphite, latent heat, Latent Heat Storage Systems, Melting Temperature, Packing Densities, pcms, phase change materials, Scanning Electron Microscopy, Scanning Electron Microscopy (SEM), SEM, TGA, Thermal Conductivity, thermal energy storage, Thermogravimetric Analysis, Thermogravimetric analysis (TGA), X-ray Diffraction, X-ray diffraction (XRD), XRD
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