Comparing Of The Outside Shading Coefficient Based On Energy Consumption And Based On Solar Heat Gain

According to the formal studies on sunshade research, take Guangzhou, Shanghai, Beijing as targeted cities, mainly solved the following two questions: The first one is figured out the relationship between the Shading Coefficient (SC) based on energy consumption and Shading Coefficient (SC) based on solar heat gain. The second one is worked out the rational sizes of deflection angle-vertical shading component in areas of Guangzhou, Shanghai and Beijing respectively.Through numerical simulation, getting the following conclusions:1. In term of average annual SC of heating energy consumption and SCof cooling energy consumption, arrived at that the horizontal shading construction not suitable for north facade in Guangzhou, Shanghai and Beijing areas, the vertical shading construction not suitable for west facade.2. According to the average annual SC result from energy consumption, get the conclusion of that south fa?ade shading(horizontal shading, horizontal blind, vertical blind) is superior to other three orientations in Guangzhou, Shanghai and Beijing areas; vertical shading in north facade is superior to other orientations.3. Through comparing SC calculated by VS software and SC calculated by DeST software, educed the relationship of the two, which could provide a new Sc calculation method for architects.4. The optimized deflection angle and PF of deflection angle-vertical shading component in Guangzhou east and west: east is 45°, west is -45°, which should designed based on the actual design requirement, PF should not less than 0.1; in Shanghai area: east is 45°, PF is 0.4, west is -45°, PF is 0.5; in Beijing area: if add deflection angle-vertical shading in east and west facade, the total energy consumption would increase, but energy consumption dramatically decrease comparing to no shading component, suppose add shading component in east and west facade in Beijing.