Abstract
A multiple of researches have been conducted at home and abroad on indoor natural lighting. However, the current lighting methods suffer from different degrees of defects, with high operation and maintenance costs. Therefore, this paper proposes a new type of multifunctional lighting window, integrating the lens fiber optic light guide device and the photovoltaic film, forming a new type of light window integrating optical lens and photovoltaic film, which can effectively meet the needs of energy conservation and environmental protection.
Highlights
With the development of China's economy and the acceleration of urbanization, the proportion of energy consumption of building in China’s total energy consumption has increased year on year
This paper proposes a new type of multifunctional lighting window, integrating lens fiber lighting device [1,2] and photovoltaic film to form a new type of lighting window that integrates optical lens and photovoltaic film
The upper part of the glass window is an optical fiber condenser device, and the protruding structure has the effect of sun shading, and collects sunlight to guide the natural light into the room through the optical fiber; Photovoltaic film is attached to the lower side of the side face and the front face of the optical fiber condenser device to convert solar energy into electricity for the normal operation of the solar tracking device, so that the angle of the lens group is changed, and excess electric energy is stored in the battery
Summary
With the development of China's economy and the acceleration of urbanization, the proportion of energy consumption of building in China’s total energy consumption has increased year on year. Since the beginning of this century, the proportion of energy consumption of buildings in China’s total energy consumption has exceeded 27%. In large office buildings(as shown in Figure 1), lighting energy consumption can account for 25% to 30% of its total energy consumption due to its large and deep structural features and the use of constant light sources. The energy consumption ratio of old office buildings is higher as they have poor lighting as well as outdated equipment. If daytime illumination can be achieved with natural light instead of lamps, building energy consumption will be effectively reduced. Exploring a lighting method that can be applied to the renovation of existing buildings, and reducing the lighting energy consumption of existing buildings are of great significance to realizing energy-saving renovation of buildings and improving the green development level of the construction field
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