Design of a High-Efficiency Collection Structure for Daylight Illumination Applications

• Main Authors: Meng-che Tsai, 蔡孟哲
• Other Authors: Allen Jong-woei Whang
• Format: Others
• Language: zh-TW
• Published: 2013
• Online Access: http://ndltd.ncl.edu.tw/handle/58295394935732423746

碩士 === 國立臺灣科技大學 === 色彩與照明科技研究所 === 101 === In response to the energy crisis, solar energy, wind energy, hydroelectric power, ocean wave energy, geothermal energy, and energy from biomass have all been gaining popularity as green energy options. Research regarding the production and use of energy must address how to maximize energy efficiency as one of its top priorities. Energy-saving and carbon dioxide reduction are some of the most critical issues currently facing the globe. Among renewable energies, solar energy has the potential for widespread application. In order to minimize energy expenditure and create a healthy illumination, our team has designed a series of products, called the Natural Light Illumination System, which can transform natural light into indoor illumination. The concept of collecting daylight for natural light illumination has the benefit of using solar energy directly without the loss of energy required to transform solar energy into electrical energy. In developing a high-quality natural light illumination system, the primary considerations include how to increase system efficiency and broaden its applications. This paper describes the conception, design, and analysis of a daylight collector that presents the combined advantages of excellent efficiency and a compact size. The collector structure consists of extendable two-channel collecting units, a planar light guide, and a central coupler to improve light-collection efficiency and increase surface area. In this study, two types of daylight collectors are proposed for illumination applications with different light patterns. With these collectors, the Natural Light Illumination System can now provide sufficiently powerful light for indoor illumination.