摘要
随着经济的发展,能源短缺,太阳能越来越受到重视。采用聚光器可提高太阳照射在单位面积上的能量密度,从而克服太阳能分散性的缺点。本文主要介绍了太阳能聚光器的特点,分析了菲涅尔透镜的结构、优点及成像特性。通过实验,分析了菲涅尔透镜在提高太阳能利用率时的各种损失因素。
With the development of economy, the shortage of energy resource is becoming serious and more and more attention is paid to the utilization of solar energy. Because a concentrator can be used to improve the energy density in a unit area, it can reduce the dispersion of solar energy. The characteristics of a solar concentrator is mainly presented. The structure, advantages and imaging features of a Fresnel lens are analyzed. Various loss factors which may occur when the Fresnel lens is used to improve the utilization of solar energy are analyzed experimentally.
出处
《红外》
CAS
2009年第3期30-34,共5页
Infrared
