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http://dx.doi.org/10.5855/ENERGY.2014.23.4.056

An Experimental Study on the Optical Separation of Highly Concentrated Sunlight  

Kim, Yeongmin (Department of Nuclear and Energy Engineering, Jeju National University)
Mo, Yonghyun (Department of Nuclear and Energy Engineering, Jeju National University)
Shin, Sangwoong (Department of Nuclear and Energy Engineering, Jeju National University)
Oh, Seungjin (Department of Mechanical Engineering, National University of Singapore)
Chun, Wongee (Department of Nuclear and Energy Engineering, Jeju National University)
Publication Information
Abstract
Highly concentrated sunlight obtained from a solar concentrator mounted on a solar tracker can be divided into the infrared and visible region before it is actually applied. That is, solar rays are directed toward a unit optically separating sunlight into the infrared and visible region by a hot mirror as they impinge on the surface of a secondary reflector. The Infrared rays can be utilized for thermoacoustic applications while visible rays can be utilized for indoor lighting. This work introduces the separation of two different kinds of light; sunlight and artificial light. As for the artificial light, its wavelength extended from 400m to 720m for the visible region and 620m to 940m for the infrared region. Comparatively, a series of tests performed on sunlight revealed its separation in the visible region from 460m to 680m whereas from 620m to 940m for the artificial light.
Keywords
Hot mirror; Solar Tracking System; Optical Separation System; Thermal-Acoustic System; Solar Lighting System;
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