Integration of smart windows into building design for reduction of yearly overall energy consumption and peak loads |
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Authors: | Jean-Michel Dussault Louis Gosselin Tigran Galstian |
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Affiliation: | 1. Department of Mechanical Engineering, Université Laval, Québec City, Québec, Canada;2. Department of Physics, Engineering Physics and Optics, Université Laval, Québec City, Québec, Canada;1. Center for Biomolecular Nanotechnologies@UniLe, Istituto Italiano di Tecnologia, via Barsanti, 73010 Arnesano, (Le), Italy;2. The University of Sydney, Faculty of Architecture, Design & Planning, 148 City Road, 2006 Sydney, Australia;3. Independent Engineering Professional, Italy;4. NNL – National Nanotechnology Laboratory, CNR Istituto Nanoscienze, Distretto Tecnologico, Via Arnesano 16, 73100 Lecce, Italy;5. Dipartimento di Matematica e Fisica “E. De Giorgi”, Universita’ del Salento, Via per Arnesano, 73100 Lecce, Italy;1. VP-Energy and Technology Applications, SAGE Electrochromics, Inc., Faribault, MN 55021, United States;2. VP-Architectural Solutions, SAGE Electrochromics, Inc., United States;3. SAGE Electrochromics, Inc., United States;4. Paladino and Company, Seattle, WA, United States |
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Abstract: | The purpose of this work is to investigate the potential of diminishing the energy consumed by typical low thermal mass office buildings for heating, cooling and lighting by using smart windows. The windows considered consisted of a double pane glazing unit in which a controllable absorbing layer is added on the interior surface of the exterior glass pane. This absorbing layer allows to change the optical properties of the window, resulting in a direct potential of control of the incident solar heat flux entering the building through the windows. A corresponding numerical model is developed showing that optimizing the solar heat flux absorption rate of the absorbing layer in regard of the necessary heating, cooling and lighting needs helps reducing significantly the total yearly energy consumption, and cooling peak loads. The simulations were done considering a building located in Quebec City, Canada. |
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