Building Facade Design Study Of BIPV

The design of building integrated photovoltaic (BIPV) refers to the design which takes into comprehensive consideration of the economy, utility and aesthetics, integrating organically photovoltaic modules and building elements. It was applied on the roof of the building in the earliest period and there have already been many successful practical examples of application. Currently, the urban construction in China tends to be high-rise buildings and vertical space development while there is still lack of systematic study and practice of facade design of building integrated photovoltaic in China.Starting with the concept and application status of photovoltaic building at home and abroad, the development and application as well as the favorable conditions of BIPV in Hangzhou are expounded in this paper. Then the key points of BIPV facade design and the influence factors during the application of photovoltaic system in facade design are discussed in detail. Application types of combination of photovoltaic power generation system and building facade are analyzed, and design content and main consideration factors of BIPV are summarized. During the design of BIPV, simulation calculation is conducted through model establishment with the help of computer software RETscreen and Ecotect. Based on the regional environment characteristics of Hangzhou city and the sunlight time and solar energy radiation received by solar panels with different orientation and inclination angles in Hangzhou city are obtained; then the optimal orientation range and inclination angle for installation of photovoltaic cells panels for buildings in Hangzhou city are studied by data analysis and comparison. Finally, relevant conclusions and prospect are put forward based on the research process and results.