In this article,with lauric -capric acid composite as PCM, expanded perlite, expanded vermiculite and expanded graphite three porous particles as enclosed carrier, three kinds of phase change energy storage granule were prepared by vacuum adsorption and melt impregnation method. Morphology of porous particles before and after the adsorption of PCM was observed through SEM. Phase change temperature and latent heat of energy storage granule were tested by TG-DSC. The results showed that, three kinds of phase change energy storage granule all fall in human comfort temperature range; PCM adsorption quantity and microstructure of porous particle exists direct correlation; after 150 times thermal cycles, phase change temperature and latent heat of phase change energy storage granule were stable.
porous particlesphase change energy storagevacuum adsorptionmelt impregnationheat preservation performance
NETL
NSTL
万方数据
维普
