JAUE2024-018: Research on the Energy-Saving Characteristics of Photovoltaic Louver Shading in Hot Summer and Warm Winter Areas in China

Abstract

China's regions with hot summers and warm winters have large cooling loads and abundant solar energy resources. This article uses a virtual office with south-facing windows in Guangzhou (an area with hot summers and warm winters) to evaluate the energy-saving performance of photovoltaic louver shading. The geometry of photovoltaic louver shading (number of louver blades and tilt angle) was optimized. This study focuses on the competitive relationship between photovoltaic louver shading power generation and indoor useful daylight illuminance. Research has found that the daylighting and energy-saving performance of photovoltaic louver shading will be affected by climate and show seasonal changes. Photovoltaic louver shading can save up to about 43% of energy throughout the year