Zhengzhou Area Energy Efficiency Design Research Of Glass Curtain Wall In Building

Outside surrounding protection structure hot working reformance of the architecture direct influence the building energy consumption,the glass curtain wall is one of the outside surrounding protection structures which the modern architecture comparatively uses.High heat transfer coefficient and low shading coefficient,glass curtain wall is more prominent,the big area glass curtain wall while provided the good natural lighting actually to bring the heating and the refrigeration energy consumption high hidden danger,it was constructs the energy consumption a weak link.the national standard " Design standard for energy efficiency of public building "(PGB50189-2015)also put the glass design standard for energy as an important indicator of doors and windows,curtain wall engineering acceptance.Therefor,the research glass curtain wall energy efficiency design has the vital significance to the architecture energy efficiency work development.On the investigation of the glass curtain wall office building in Zhengzhou area,analyzes and summarizes the local the glass curtain wall style tactic form,understanding the current construction situation of glass curtain wall office building,indoor thermal comfort level,subjective thermal wet feeling a,provide data support for the follow-up study.The main achievements and conclusions in this thesis are:(1)With Low-E and common double glazing glass as the test object,indoor and outdoor thermal environment test have been carried out,and results show that the glass curtain wall office building quality of the indoor thermal environment is poor,the winter it has a large temperature difference,and indoor thermal comfort level needs to be improved.The thermal comfort degree of the Low-E double glass curtain is better than the common glass curtain wall.(2)The paper proposed a new type glass curtain wall model that named buffer gallery the Designbuilder software simulation has been carried out to simulation the three types glass curtain wall study.Through the analysis and suggestions selected the1500 mm wide glass hotchannel type glass curtain.Combine with the four different window-wall ratio and buffer gallery glass curtain wall,using DB to simulate,choose the reasonable form of outside surrounding protection structure.(3)internal retaining structure is optimized further,optimized scheme to make use of the software thermal environment simulation,and analyzes the simulation result,select the best combination of retaining structure.We expect through theoretical analysis and software simulation the thermal performance for the different retaining structure putting forward the modification scheme of the existing glass curtain wall and promote the energy-saving design researching of the glass curtain wall.