Taking an office building in the cold zone as an example,a simulation model of the phase change materials applied to the inside of the south exterior wall of the building is established based on TRNSYS,the NSGA-Ⅱ algorithm of jEPlus+EA platform is utilized to conduct a multi-objective optimization design of the building cooling and heating loads,the Utopian point method is applied to make equilibrium decisions on the set of Pareto front,and the phase change duration and energy saving rate of the optimization solution are analysed.The results show that the reasonable phase change temperature range of typical office buildings in the cold zone is from 17 to 25 C,the average annual energy saving rate of the room with phase change material on the inside of the south exterior wall as the calculation benchmark can reach 7.2％,the building cooling and heating loads can be reduced by 7.78％and 6.04％,respectively,and the optimization solution has a higher gain for the building heating load.
维普
万方数据
