Experimental Study on the Thermal Storage Performance and Preparation of Glycerin Mixtures Used in the Phase Change Wall

The aim of this work is to find a novel phase change material (PCM) used in the building envelope. The phase change temperatures phase change latent heats and thermal stability of different proportion glycerin and 1, 6-hexandiol mixtures were experimentally studied. The phase change temperature and phase change latent heat were determined by differential scanning calorimeter (DCS). Thermal cycling test was conducted to determine the thermal reliability. The experimental results showed that the phase change temperatures and latent heats of Glycerin and 1, 6-hexandiol mixtures change with their composition. Glycerin and 1, 6-hexandiol mixtures in different mass proportions have a wider phase change temperature range and higher phase change latent heat by DCS. Thus the glycerin mixtures can be used in the different thermal storage fields by adjusting the mixed proportion. The results in this paper can provide reference and basis for the application of phase change material in the wall.