Wang, Y; Lin, M; Xu, K; Zhang, S and Ma, H (2021) Energy consumption analysis of glass house using electrochromic window in the subtropical region. Journal of Engineering, Design and Technology, 19(1), pp. 203-218. ISSN 1726-0531
Abstract
Electrochromic window (ECW) has been gradually applied to building engineering in recent years. However, empirical study of this technology used in green building design is still lacking. This study aims to verify the lighting and energy-saving performance of ECW under a specific geographical environment. The meditation pavilion of Jinwan new materials research institute in Zhuhai is taken for research object. Three kinds of sun-shading techniques, namely, ECW, Low-E window and ordinary glass window, with same specifications are selected as the building facade structure for simulation. Day lighting analysis, sun-shading performance and annual energy consumption are separately simulated in the same environment by the Autodesk Ecotect Analysis software. The energy-saving performance of ECW is obtained by comparisons. Result shows that the shading performance of ECW is much better than ordinary window and Low-E window. When ECW is used in the east, west or top lighting interfaces of a building, about 40% of the total solar radiation can be reduced during daytime in summer. Taking the ordinary glass window as a basic reference, ECW can save about 90% of the annual energy consumption of the glass house. ECW can effectively reduce the annual refrigeration energy consumption of buildings in the subtropical region. Reasonable use of ECW in the subtropical region can effectively reduce the annual energy consumption of buildings. It is a precedent study to analyze the lighting performance and energy consumption of a glass house with ECW. The energy-saving characteristics and beautiful appearance of ECW shall make it a future green building technology.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | building design; building engineering; energy consumption; green building; performance; specifications; simulation |
| Index terms: | window, building engineering, subtropical region, refrigeration, green building, shading, meditation, specification, research institute, energy-saving, energy consumption, empirical study, summer, glass house, building design, sun, solar radiation |
| Subjects: | contractual condition, design practice, physical geography and landforms, architectural elements, building design, research methods, health conditions and diseases, climate science, research organizations, construction type, mechanical systems, energy systems, architectural design |
| Topics: | Design Practice, Contract Administration, Geographical Context, Research Practice, Engineering Principles, Construction Technology, Sustainability |
| Descriptive scope: | 3 PCA |
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