Abstract：
A numerical calculation by Finite Difference Method was presented based on a transient 1-D mathematical model of heat and mass transfer. The comparison of heat performance of cold storage wall was performed for three kinds of insulation materials: expanded polystyrene (EPS), extruded polystyrene (XPS), polyurethane (PU) in the case of the heat conductivity of insulation material is constant and the function of temperature and moisture. The results showed that the heat conductivity is larger when considering the absorption of moisture of the insulation material so that the energy consumption of cold storage is larger. The power consumption of cold storage increases 5 009.7 kW·h, 5 492.6 kW·h, 8 547.3 kW·h respectively when using XPS, PU, EPS as the insulation materials within a year.
LUO Jin-feng,SU Xiang-hui. EFFECT OF MOISTURE ABSORPTION PROPERTIES OF INSULATION MATERIAL ON ENERGY CONSUMPTION OF COLD STORAGE WALL[J]. Architecture Technology, 2012, 43(7): 608-610.
