Research On The Performance Of Technology About Photovoltaic Facades And Technology Application In Shenzhen

Along with energy crisis and a series of social and environmental problems have become increasingly prominent, more and more countries are extremely attention to the development and application of the renewable energy. Photovoltaic facades power generating system has become to an important kind of solar energy application form. The photovoltaic facades power generating system, not only can provide the green power for the construction, but also can block the sunshine, separate the heat and reduces the construction energy consumption function in the summer. The development of economy and population in Shenzhen is so fast that the demand of electric power for life increased constantly. And Shenzhen situated in the hot summer and Warm winter area and the solar radiation resources in Shenzhen is relatively rich. Therefore, the research on the photovoltaic facades power generating system technical performance and the correlation technology application question aim at the Shenzhen climate characteristic and the building styles, which can boost the Shenzhen area solar energy photo electricity technology application, promote local new energy development and the construction energy conservation, the environmental protection enterprise coordinated development, has a very important theory significance and application value.The paper depends on "Building integrate solar energy" scientific research item of Shenzhen Institute of Building Research, revolves the technology application of the photovoltaic facades power generating system in Shenzhen area, through the mathematical model theoretical analysis, the actual project experimental test and the software simulation, mainly has done following several aspects research work, and correspondingly obtains some research results: (1)Through actual test and the software simulation, from the Shenzhen area whole year solar radiation distribution, the total quantity of electricity generation, photovoltaic power system efficiency thoroughly studies the photovoltaic facades power generating system electricity generation performance and its the influence factor, obtains the choice method of photovoltaic facades construction surface, module and system which conforms to the Shenzhen area region characteristic. (2)Through actual test and the theoretical calculation to thoroughly research block the sunshine, separate the heat of photovoltaic facades thermal performance. According to photovoltaic facades heat transfer analysis, we can get calculation method of construct outside wall surface air synthesis temperature in photovoltaic facades. Through the result of research, we can get the photovoltaic facades module the effectively reduce the construction wall outside surface the temperature and the quantity of heat, as well as the outside synthesizes temperature, simultaneously also obviously reduced the cooling load of indoor which because the constructionwall hot formed the energy conservation effect has been obvious. (3) Base on the project case experiment test, and using CFD simulation software calculate the hot environment of different structural styled photovoltaic facades, obtains the different structure photovoltaic facades channel air current organization, the temperature field and the velocity field distributed situation; And the application orthogonal experiment method, research curtain wall width, highly, the vent size and diaphanous rate of photovoltaic facades module in the curtain wall channel to the light the quality of photovoltaic facades and hot environment influence rule, thus provide the technical basis for the structure optimized design on photovoltaic facades and the construction integrated design in the Shenzhen area. (4)Put forward the thought and frame to photovoltaic facades application benefit analysis. The photovoltaic facades power generating system performance is influencer by the multitudinous factor. Therefore when we evaluate the photovoltaic facades power generating system, we should consider the common effect of each factor.