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Simulation Study on Factors to be Considered for Each Type of Indoor Luminaires and Light Sources when Converting to LEDs L&E, Vol. 29, No. 2, 2021

Light & Engineering 29 (2)

Volume 29
Date of publication 04/22/2021
Pages 72–78

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Simulation Study on Factors to be Considered for Each Type of Indoor Luminaires and Light Sources when Converting to LEDs L&E, Vol. 29, No. 2, 2021
Articles authors:
Jaemin Kim

Jaemin Kim, M. Sc. He received master’s degree in Electrical and Information Engineering from Seoul National University of Science and Technology in 2015. Now he is in Ph. D. course in same university

Abstract:
As high-efficiency lighting has become mainstream, conversion of lighting equipment is under way, starting with government agencies. Existing fluorescent luminaires are being converted with LED luminaires. The main method used for conversion is to remove the fluorescent lamp (case 1) and replace it to a tubular LED lamp, and convert the luminaire itself with a LED panel luminaire (case 2). However, focusing only on energy efficiency, the existing luminous environment are not considered, such as illuminance, illuminance uniformity, and UGR. Therefore, the optical characteristics were measured using the actual luminaire used in the conversion. Simulations were performed comparing the luminous environment and power consumption before/after conversion. Case 1 had advantages in power consumption and UGR over case 2, and the illuminance was slightly reduced, but it met the criteria. These results confirmed that the conversion of lighting devices at least ensured the existing luminous environment.
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