Experimental And Simulation Study On The Influence Of Ventilation Mode On The Building Energy Consumption Of Double Skin Fa(?)ade

As a new type of building envelope,Double Skin Fa(?)ade(DSF)can effectively reduce the cooling and heating energy consumption,as a result,DSF is widely used in the modern building.At present,the research on the DSF system is mainly aimed at the analysis of its thermal performance in summer hot and cold winter area,but the study of the theory of the ventilation and analysis of the measured are still lacking.In this paper,Zhuzhou is chosen as the representative of the hot summer and cold winter region,and the DSF experimental room built by a university is selected as the research object.Combined with the local climate characteristics,the multiple ventilation operation mode of DSF under different seasons indepth analysis and discussion,in order to provide theoretical guidance for the maximum energy efficiency of DSF building.Firstly,based on the CFD principle,we used Fluent software to simulate the different ventilation modes of double glass curtain wall in different seasons.In summer,we mainly simulated and analyzed the temperature change rule of hot channel and indoor air in the natural ventilation,mechanical ventilation and different mechanical ventilation speed;in transitional seasons,we mainly simulated and analyzed the influence of the different use modes of the inner and outer curtain wall vents on the hot channel and indoor air temperature;In winter,the influence of the opening and closing of the inner curtain wall ventilation on the hot channel and indoor air temperature were simulated and analyzed.Based on the simulation results,the reasonable ventilation modes of DSF buildings in different seasons were summarized.Then we conducted experiments about the ventilation mode of DSF in DSF experiment room under different seasons,and the simulation results were compared with experimental data,but there were some errors between the test data and the simulation consequence,we summarized a few reasons by analyzing data.Finally,we took an office building as the building model,and used the energy simulation software DeST to simulate the variation of the natural room temperature of DSF and the traditional glass curtain wall in summer and winter conditions.At the same time,DeST simulation is used to analysis the annual energy consumption of DSF and traditional glass curtain wall.The simulation results show that the summer energy-saving advantages of DSF building in hot summer and cold winter is not obvious.