STUDY ON THERMAL PROPERTIES OF PARAFFIN-GRAPHITE AND PARAFFIN-ALUMINIUM AMMONIUM SULFATE AS HEAT STORAGE MATERIAL

摘要

Graphite and aluminium ammonium sulfate were respectively made into two kinds of composite materials with Paraffin in this research, and they were mixed as sample preparation with different mass ratio as 9:1, 8:2, 7:3 and 6:4 (Paraffin: Graphite/aluminium ammonium sulfate).Use DSC and M400 to make a study on the thermal conductivity of the several Paraffin-composite materials. The results showed that the composites with Graphite or aluminium ammonium sulfate were higher in thermal conductivity and lower in the time of heat storage/ release than Paraffin. The optimum proportion of Heat Storage Material in wood drying application was found through the analysis and comparison.