Study On Structural Design And Thermal Performance Of Photovoltaic Planting Double-skin Facade Wall

Double-skin facade is an innovative form of traditional single glazing curtain wall,improved its much-maligned performance of thermal insulation which is far below that of traditional walls,substantially reduced the energy consumption of air conditioning and heating in traditional single glazing curtain wall buildings.Double-skin facade has developed rapidly in the last thirty years,recognized as an ecological meaning building envelope.With the innovation of building energy efficiency technology,double-skin facade has the peculiarities of light transmittance,hollowness and facade modularization,which provides a good feasibility for various production activities.The research on the production potential and energy consumption performance of double-skin facade is an important topic of green building,whether these technologies of photovoltaic power generation,energy efficiency production strategy of vertical greenhouse and ecological strategy of plant shading be applied to double-skin facade ?How to design the integration of energy-saving technologies based on double-skin facade?What are the thermal properties of the integrated photovoltaic planting double-skin facade?How would are these ecological benefits of the new planting curtain wall strategy of vertical greenhouse and plant shading? The article will explore.Considering the complexity of the concept of a photovoltaic planting double-skin facade,firstly,the paper briefly introduces the concepts of external circular double-skin facade,building integrated photovoltaics,planting curtain wall and vertical greenhouse etc,introduce the feasibility of integration coupling of these technologies.Based on the special climate characteristics in Hainan which is hot summer and warm winter region,taking Haikou area as an example,studies the structural design of the photovoltaic planting double-skin facade in this area.Design unit of module structural component with wide application.Then,using the historical meteorological data as the boundary conditions,the article simulated the temperature field of the unit module under the most disadvantage conditions in summer with the method of CFD software,and compared the simulation results with the theoretical calculation results,which verified the feasibility of the design.Finally,on this basis,use the existing design,field built a unitized module of photovoltaic planting double-skin facade,test the thermal performance and ecological benefits of the double-skin facade,and analyses the influence of vertical plants within the greenhouse wall structure thermal performance and the impact on the construction of the internal environment.In the end,the lack of the research in this article was summarized and outlooks for research areas of the photovoltaic planting double-skin facade future development were listed.