The Research On Design Technology Of Fixed Outer Shading For Office Building Window In Nanchang Area

With the progress and development of society,energy problem has been a hot issue around the world.Construction energy consumption takes up one-third of total national energy consumption in high energy-consuming industry of our country.Therefore,advocation of building energy conservation design is urgent.The energy consumption caused by building exterior structure is a vital part of building energy consumption.Outer windows,as the weakest link of building exterior structure,mainly influence building consumption in two ways: one is that outer windows are heated by solar radiation,which increases air-conditioning energy consumption in summer;the other is that temperature difference of air conditioning in summer and heating in winter between indoor and outdoor because of poor thermal performance of outer windows.As one of the most important measures of building energy consumption,the window shading technology is able to effectively the heat of indoor from solar radiation,and then decrease air conditioning consumption in summer.But inappropriate window shading technology will affect the need of indoor lighting and indoor heating from solar radiation in winter.So reasonable window shading technology should comprehensively balance the need between building energy conservation and indoor daylighting.Taking the office building in Nanchang for instance in the paper,the author went into the technology of window shading technology of office building in the area in order to conserve building consumption,enhance comfort level.The main researching contents and results are as follows.Firstly,the author made the range of application and influence factors clear by analyzing the theoretical research of window shading technology and current situation of window shading technology research at home and abroad.Secondly,the author analyzed the existing problems of window shading technology of the office building in the area by studying climatic characteristics in Nanchang,which created a pretext for later design approaches of window shading technology.Thirdly,the author started to comprehensively study window shading technology suitable for office building in Nanchang on the basis of exciting problems,including preliminary design technology,optimum design technology as well as final evaluation standard of window shading,etc.Lastly,the simulation study of an office building in Nanchang was done by using TH SWARE,analyzing the best window shading form of every window orientation of the office buildings and come to a conclusion.