에너지공학 (Journal of Energy Engineering)

  • 제26권1호
  • /
  • Pages.34-44
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  • 2017
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  • 1598-7981(pISSN)
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  • 2713-7074(eISSN)
한국에너지학회 (The Korean Society for Energy)
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광화이버 및 Fresnel lens 적용 집광식 자연채광 시스템의 이용을 통한 조명에너지의 절감 : 시뮬레이션 및 실측 비교

Electric lighting energy saving through the use of a Fresnel lens based fiber-optic solar lighting system : Simulation and measurements

  • 정해준 (제주대학교 에너지공학과) ;
  • 김원식 (제주대학교 에너지공학과) ;
  • 김영민 (제주대학교 에너지공학과) ;
  • 한현주 (제주대학교 건축공학과) ;
  • 천원기 (제주대학교 에너지공학과)
  • Jeong, Haejun (Department of Energy Engineering, Jeju National University) ;
  • Kim, Wonsik (Department of Energy Engineering, Jeju National University) ;
  • Kim, Yeongmin (Department of Energy Engineering, Jeju National University) ;
  • Han, Hyun Joo (Department of Architectural Engineering, Jeju National University) ;
  • Chun, Wongee (Department of Energy Engineering, Jeju National University)
  • 투고 : 2017.02.24
  • 심사 : 2017.03.13
  • 발행 : 2017.03.31
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초록

본 연구에서는 2축의 태양추적장치에 프레넬 렌즈를 장착한 fiber-optic 설비형 자연채광시스템의 효율성에 대하여 이론적 분석을 수행하였다. ECOTECT와 RADIANCE를 기반으로 시뮬레이션 모델을 개발하여 다양한 조건하에서 자연채광 시스템뿐만 아니라 형광등을 이용한 인공조명에 대한 실내 조도분석과 함께 실측 데이터와의 비교연구를 수행하였다. 형광등을 이용한 실내조명의 경우, 평균조도는 사무실 실내 조도 기준을(KS A 3011 일반 사무실 [G]등급[300-400-600lux]) 충분히 만족하는 결과를 보여주었다. 한편, 디퓨져를 사용한 자연채광시스템의 경우도 사무실 실내 조도 기준을 넘는 것으로 나타났다.

This paper deals with the effectiveness of a fiber optic solar lighting system that uses a Fresnel lens mounted on a two-axis solar tracker. A series of comparative analyses were made concerning its performance as compared to fluorescent lighting by using a simulation model based on ECOTECT and RADIANCE as well as referring to actual data. ECOTECT was used to model the test room (space) while RADIANCE was used for its indoor lighting conditions (environment). It was found that the average indoor light levels of fluorescent lighting fully satisfy the KS standard (KS A 3011, general office, class [G]: 300-400-600lux) whereas those of the solar lighting with light diffusers depends on the occlusion factor of roller shades installed on the south window.

키워드

참고문헌

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