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The Beijing average summer temperatures of up to 30.2 ℃, public buildings, shopping malls, office star air-conditioning electricity consumption accounted for 50%, 37%, 43%, residential air conditioning ownership of the building one hundred by 2001 35.8 units to 2006 87.8 units, air conditioning is the second largest energy consumption in the building and construction shade of effective measures to conserve the energy consumption and improve indoor comfort. The study was designed to select the appropriate shade and shade products, energy-efficient coordination of energy conservation and summer shade of winter sun was hot, and optimize the overall energy saving effect, provide the basis for the Beijing the shade building materials products applications. Targeted public buildings and residential buildings, two main ways of using glass body shading and external shading, comprehensive energy-saving rate of evaluation methods, the use of energy-saving energy conservation and summer shade of winter sun was hot DeST simulation method to analyze the different toward different shading coefficient comprehensive energy-saving rate law, in order to optimize the choice of glass shade, building materials and exterior shading products, to optimize the performance of products design. High permeability type of ordinary hollow glass, insulating glass shade type, high permeability-type hollow glass the composite vacuum shade glass and composite vacuum glass residential buildings to optimize the selection of a combination of glass is something to shade glass, north and south to the high permeability type glass toward both ordinary hollow glass contrast optimization hollow glass combination can reach 4.0% of the total energy saving rate the the composite vacuum glass can reach the highest total energy saving rate of 8.5%; window to wall ratio 0.7 public buildings Selection of optimal combination of glass to the south, East to West to shade glass northward as high permeability type glass, to optimize the total energy saving rate of 24.9% hollow glass combinations can be obtained composite vacuum glass can achieve the highest total energy-saving rate of 31.2%. The building exterior shading studies have shown that residential buildings each heading with the shading coefficient is reduced from 0.8 to 0.3, south to the movable shade energy saving rate improved significantly to 5.8%. EW shading effect is not obvious, mainly because of the things to the construction area is small, but greatly improve the comfort of the living environment. Beijing area can select movable shade better shade roller blinds, fabric, venetian blinds, preferred shade products; public buildings each toward toward the total energy consumption with the shading coefficient is reduced from 0.7 to 0.2, the north-south thing 9% reduction in energy saving rate of 5%, 8%, 7%, the movable shading is much higher than the fixed shade Civil something toward 16%, 7%, 12%, 11%. Public buildings, mostly high-rise buildings, the strong performance of wind pressure wing shade, and grille shade products as the first choice for large public buildings; same time, the simulation results show that wing sunshade fixed level of public buildings south to the plate width appropriate size of 255mm, northbound 155mm from each towards the total energy saving ratio, the level of shade in the South to effect more obvious, northbound, followed by the two sides to the effect is not very good shade of things to recommend using the activity- shade.
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