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Energies 2018, 11(9), 2205; https://doi.org/10.3390/en11092205

Deducing the Optimal Control Method for Electrochromic Triple Glazing through an Integrated Evaluation of Building Energy and Daylight Performance

1
Center for Building Envelope Technology, Korea Conformity Laboratory, 595-10, Pyengsin 1-ro, Daesan-eup, Seosan-si 31900, Chungcheongnam-do, Korea
2
Center for Building Envelope Technology, Korea Conformity Laboratory, 73, Yangcheon 3 gil, Ochang-eup, Cheongwon-gu, Cheongju-si 28115, Chungcheongbuk-do, Korea
3
Sustainable Building Research Center, Hanyang University, 55 Hanyangdaehak-ro, Sangnok-gu, Ansan 15588, Korea
*
Authors to whom correspondence should be addressed.
Received: 16 July 2018 / Revised: 20 August 2018 / Accepted: 20 August 2018 / Published: 23 August 2018
(This article belongs to the Special Issue Building Energy Use: Modeling and Analysis)
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Abstract

Electrochromic glass is anticipated as the next generation of solar control glass for construction because it can control the transmittance of the glass itself. This study analyzed building energy and light environment performance by applying electrochromic glass in triple glazing in order to verify both the solar control characteristics of electrochromic glass and its high insulation performance. This paper evaluates the performance of the electrochromic glass developed by our research team in Korea in five control conditions of varying temperatures and solar radiation levels. By analyzing the cooling and heating load, lighting energy, Daylight Glare Index (DGI), and interior illuminance when applying the selected conditions to office buildings, this paper discerns the optimal control conditions for electrochromic glass. To do so, the optical characteristic data of the electrochromic glass was analyzed via an experiment, and the creation of triple glazing for construction was conducted. The performance of electrochromic glass was evaluated by analyzing hourly and yearly data for cooling, heating load, and lighting energy during a typical day in summer and winter. From this analysis, the control condition with an outstanding performance from an energy perspective was identified. The performance of the light environment was assessed, and the EDPI overall evaluation index was used to find the electrochromic glass’ optimum control conditions for integrating energy and light environment. View Full-Text
Keywords: electrochromic glazing; optimum control; optical properties; heating and cooling loads; lighting energy; office building; EnergyPlus electrochromic glazing; optimum control; optical properties; heating and cooling loads; lighting energy; office building; EnergyPlus
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Oh, M.; Park, J.; Roh, S.; Lee, C. Deducing the Optimal Control Method for Electrochromic Triple Glazing through an Integrated Evaluation of Building Energy and Daylight Performance. Energies 2018, 11, 2205.

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