Research of the Effects of Additives on Thermal Properties of Paraffin Mixtures

Changes of thermal conductivity of paraffin mixtures joined different percentage of aluminum,copper,silicon powder were studied.Feasibility of three kinds of powder materials added to paraffin to enhance paraffin′ thermal properties were studied.On the other hand,the effect on different additives to paraffin′s phase change temperature and phase change latent heat was analyzed.The results show that adding high conductivity material into PCM is able to enhance the thermal propertity,and the effect of different additives are different.The phase change temperatures of PCM increase,and the phase change latent heat decrease after joining high conductivity materials into PCM.The results can provide references and basis for the transfer enforcement of phase change materials used in wall.