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Design and Fabrication of a Light-Guiding Plate for a Photobioreactor Utilizing a Hybrid LED Plus Sunlight Source

LED와 태양광 하이브리드 광원을 이용한 광생물 반응기용 도광판 설계 및 제작

  • 임현철 (조선대학교, 광기술공학과) ;
  • 양승진 (조선대학교, 광기술공학과) ;
  • 백준혁 (조선대학교, 광기술공학과) ;
  • 김재영 (조선대학교, 광기술공학과) ;
  • 장경민 (조선대학교, 광기술공학과) ;
  • 김종태 ((주) 동아하이텍) ;
  • 정상화 (조선대학교, 기계공학과) ;
  • 박종락 (조선대학교, 광기술공학과)
  • Received : 2016.02.11
  • Accepted : 2016.03.18
  • Published : 2016.04.25

Abstract

In this paper, we report the results of a study on the design and fabrication of a light-guiding plate (LGP) using a hybrid light-emitting diode (LED) and sunlight source that can be applied to a photobioreactor. LGP patterns for the LED source were designed and engraved on an LGP, together with previously reported patterns for a sunlight source. A control system for the hybrid LGP was designed to maintain the output photon flux density (PFD) from the LGP at a constant value. When the target value of the output PFD was set to $70{\mu}E/(m^2{\cdot}s)$, the error range of the output PFD was found to be within ${\pm}2%$.

본 논문에서는 광생물 반응기의 조명 시스템에 적용할 수 있는 LED(Light-Emitting Diode)와 태양광 하이브리드 광원을 이용한 도광판의 설계 및 제작 결과에 대해 보고한다. LED용 도광판 패턴을 설계하고 기존에 보고된 태양광용 도광판에 함께 중첩하여 가공하였다. 하이브리드 도광판의 출력 PFD(Photon Flux Density)를 일정하게 유지시켜주기 위한 제어 시스템을 제작하였으며, 출력 PFD 목표값을 $70{\mu}E/(m^2{\cdot}s)$로 설정하였을 경우 오차범위 ${\pm}2%$ 이내에서 제어가 이루어짐을 확인하였다.

Keywords

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