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Energies 2015, 8(8), 8736-8748; doi:10.3390/en8088736

Synergetic Effect between Lighting Efficiency Enhancement and Building Energy Reduction Using Alternative Thermal Operating System of Indoor LED Lighting

1
Energy Saving Laboratory, Korea Institute of Energy Research, 152 Gajeong-ro, Yuseong-gu, Daejeon 305-343, Korea
2
Department of Architectural Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 120-749, Korea
3
Energy ICT Laboratory, Korea Institute of Energy Research, 152 Gajeong-ro, Yuseong-gu, Daejeon 305-343, Korea
*
Author to whom correspondence should be addressed.
Academic Editor: Hossam A. Gabbar
Received: 30 June 2015 / Revised: 6 August 2015 / Accepted: 7 August 2015 / Published: 17 August 2015
(This article belongs to the Special Issue Energy Conservation in Infrastructures)
View Full-Text   |   Download PDF [1806 KB, uploaded 17 August 2015]   |  

Abstract

We investigated the synergetic effect between light-emitting diode (LED) lighting efficiency and building energy savings in heating and cooling using an alternative thermal operating system (ATOS) of indoor LED lighting integrated with the ventilation system of a building as an active cooling device. The heat generated from LED lighting and the indoor lighting illuminance were experimentally determined. The indoor heat gains in cooling and heating periods were determined using measurement data; the annual energy savings of an office building in heating and cooling were calculated through simulation. The LED lighting illuminance increased by approximately 40% and the lighting contribution for indoor heat gain was 7.8% in summer, while 69.8% in winter with the ATOS. Consequently, the annual total energy use of the office building could be reduced by 5.9%; the energy use in cooling and heating was reduced by 18.4% and 3.3%, respectively. View Full-Text
Keywords: building energy efficiency; indoor thermal effect; light-emitting diode (LED); lighting efficiency building energy efficiency; indoor thermal effect; light-emitting diode (LED); lighting efficiency
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Ahn, B.-L.; Park, J.-W.; Yoo, S.; Kim, J.; Jeong, H.; Leigh, S.-B.; Jang, C.-Y. Synergetic Effect between Lighting Efficiency Enhancement and Building Energy Reduction Using Alternative Thermal Operating System of Indoor LED Lighting. Energies 2015, 8, 8736-8748.

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