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2020 Vol.14, Issue 3 Preview Page

Research Article

Mock-up Experiment and LCC Economic Analysis of LED Lighting System Dimming Control for Lighting Energy Saving in Office Buildings

에너지 절감을 위한 LED 조명 시스템 디밍 제어의 Mock-up 실증 실험 및 LCC 경제성 분석

Chul-Ho Kim1
,
Min-Kyeong Park2
,
Won-Hee Kang2
,
Kwang-Ho Lee3
,
Kang-Soo Kim4*
김 철호1
,
박 민경2
,
강 원희2
,
이 광호3
,
김 강수4*
1Researcher, Ph.D., Energy ICT Convergence Research Department, Korea Institute of Energy Research
2M.S. Course, Department of Architecture, College of Engineering, Korea University
3Associate Professor, Ph.D., Department of Architecture, College of Engineering, Korea University
4Honorary Professor, Ph.D., Department of Architecture, College of Engineering, Korea University
1한국에너지기술연구원 에너지ICT융합연구단 연구원
2고려대학교 대학원 건축학과 석사과정
3고려대학교 건축학과 교수
4고려대학교 건축학과 명예교수
* Corresponding Author
30 June 2020. pp. 283-297
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Abstract

We conducted a LED lighting system dimming control experiment by dividing a full-scale mock-up into two zones, a perimeter zone and an interior zone (2019.06-08). First, we replaced the fluorescent lamp of the existing lighting system with a high efficiency LED lighting system, and calculated the indoor daylight illuminance, LED artificial light distribution, and dimming rate (turning-on rate) for each control method. Second, we performed an LCC analysis according to the LED lighting system installation and control method. We selected the experimental case in accordance with the actual usage pattern. Case 1 was selected for full auto dimming control. Case 2 was selected for manual dimming control five times a day. Case 3 was selected for a switch on-off control that turned off between 12:00-17:00. For work plane illuminance of 500 lx during auto dimming control, the dimming rate was 70% (zone A_82%, zone B_58%) on average in clear sky, 60% (zone A_69%, zone B_51%) on average in intermediate sky, 51% (zone A_57%, zone B_44%) on average in overcast sky. The difference in dimming rates of auto dimming control (Case 1) and manual dimming control (Case 2) were 3% or less, and the value difference was small. By replacing the fluorescent lamp with a high efficiency LED lighting system and analyzing LCC for the control method, the break-even point of the LED auto dimming control was 11.5 years and the break-even point for manual dimming control was 7.6 years. Therefore, it is considered that the dimming control method is economically feasible.

Keywords
Light Emitting Diodes Lamp
Dimming Control
Lighting Energy
Indoor Illuminance
Mock-up Test
Life Cycle Cost Analysis

키워드
LED 조명
디밍 제어
조명 에너지
실내 조도
Mock-up 실험
LCC 경제성 분석
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Information
  • Publisher :Korean Institute of Architectural Sustainable Environment and Building Systems
  • Publisher(Ko) :한국건축친환경설비학회
  • Journal Title :Journal of Korean Institute of Architectural Sustainable Environment and Building Systems
  • Journal Title(Ko) :한국건축친환경설비학회논문집
  • Volume : 14
  • No :3
  • Pages :283-297
  • Received Date : 2020-05-04
  • Revised Date : 2020-06-19
  • Accepted Date : 2020-06-23
  • DOI :https://doi.org/10.22696/jkiaebs.20200025
Journal Informaiton Journal of Korean Institute of Architectural Sustainable Environment and Building Systems Journal of Korean Institute of Architectural Sustainable Environment and Building Systems
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