Numerical Study on Energy-Saving Performance of a New Type of Phase Change Material Room

The thermal performance of a phase change energy storage building envelope with the ventilated cavity was evaluated. CaCl2·6H2O-Mg(NO3)2·6H2O/expanded graphite (EG) employed to combined for year-round management. consumption caused by under different influence parameters evaluated numerically. results indicated that CaCl2·6H2O-8wt %Mg(NO3)2·6H2O/EG should be installed on south wall heating season, while CaCl2·6H2O-2wt integrated roof cooling season. When air layer and coated solar absorbing coating, room could save approximately 30% consumption. Moreover, increased an increase in thickness, layers played role envelope. optimal value flow rate between 2, 3, 0.09 m3/s. To reduce consumption, materials (PCMs) large small conductivity roof, respectively. In general, can during seasons.