Application of high-density daylight for indoor illumination |
| |
Authors: | Hyunjoo Han Jeong Tai Kim |
| |
Affiliation: | 1. Division of Architectural Engineering, Dongguk University, Seoul, Republic of Korea;2. Department of Architectural Engineering, Kyung Hee University, Yongin-si, Gyeonggi-Do, Republic of Korea |
| |
Abstract: | A fiber optic solar concentrator system with a simple parabolic profile is designed and fabricated to deliver a stream of high-density solar flux into the interior of a building for indoor illumination. The system consists of a small dish concentrator (30 cm in diameter), an optical fiber cable and a diffuser at the end. A series of tests are performed using a goniophotometer and spectrometer to investigate the photometric characteristics of the system in terms of luminous intensity distribution and spectral radiance, which are used in link with the actual photometric measurements for a lightless mock-up space of 4.9 m × 4.9 m × 2.6 m. The illuminance on the working plane was continuously monitored at 25 points by using photometric sensors. Measurements clearly indicate the photometric characteristics of the present system where a constant level of indoor illumination is observed depending on the sky clearness. |
| |
Keywords: | Fiber optic concentrator Photometric property Goniophotometer Spectrometer Indoor illumination Mock-up model |
本文献已被 ScienceDirect 等数据库收录! |