Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/31896
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Title: Energy and visual performance of the silica aerogel glazing system in commercial buildings of Hong Kong
Authors: Huang, Y 
Niu, JL 
Issue Date: 30-Sep-2015
Source: Construction and building materials, 30 Sept. 2015, v. 94, p. 57-72
Abstract: Abstract To achieve a more comfortable indoor environment while still retaining low energy consumption level is an exciting challenge for designers and owners of buildings. In this paper, a silica-aerogel filled super-insulating glazing system was proposed. A numerical study was conducted to analyze the energy performance and visual performance of the proposed glazing system. Two popular building simulation programs namely EnergyPlus and Radiance were applied in the numerical study. In the study of the energy performance, three control strategies (space temperature control, operative temperature control and PMV control) were applied to simulate the occupant's control behavior toward the air-conditioning system in reality. The result indicated that compared with conventional single clear glazing, the silica aerogel glazing could retain a 4% longer thermally comfort period, while the energy consumption of HVAC system was reduced by 4-7%. The performance of the silica aerogel glazing was almost equal to that of the state-of-art low-e glazing. It is also concluded that as the occupant's request on thermal comfort got stricter, the performance of the silica aerogel glazing would became better. In the visual comfort point of view, it can be concluded that the glare effect and near-window bright zone could be reduced significantly while indoor illumination level still met the requirement.
Keywords: Energy consumption
Indoor environment quality
Silica aerogel glazing system
Thermal comfort
Visual comfort
Publisher: Elsevier
Journal: Construction and building materials 
ISSN: 0950-0618
DOI: 10.1016/j.conbuildmat.2015.06.053
Rights: © 2015 Elsevier Ltd. All rights reserved.
© 2015. This manuscript version is made available under the CC-BY-NC-ND 4.0 license https://creativecommons.org/licenses/by-nc-nd/4.0/
The following publication Huang, Y., & Niu, J. L. (2015). Energy and visual performance of the silica aerogel glazing system in commercial buildings of Hong Kong. Construction and building materials, 94, 57-72 is available at https://doi.org/10.1016/j.conbuildmat.2015.06.053.
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