ENERGY PERFORMANCE OF BUILDINGS USING ELECTROCHROMIC SMART WINDOWS WITH DIFFERENT WINDOW-WALL RATIOS

IF 0.7 4区艺术学 0 ARCHITECTURE

Journal of Green Building Pub Date : 2022-01-01 DOI:10.3992/1943-4618.17.1.3

W. Xing, Jianli Hao, Wenting Ma, G. Gong, A. Nizami, Yu Song

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引用次数: 6

Abstract

The electrochromic (EC) smart window is a promising intelligent technology for improving the energy performance of a building. When applying a new glazing material, the window-wall ratio (WWR) is regarded as a significant factor related to daylight and building energy losses. However, there have not been any studies examining the relationship between the efficiency of the EC smart window and the WWR. The aim of this study is to provide strategies for mitigating energy losses and environmental impacts from window elements in an office building. It focuses on optimizing the WWR of EC smart windows to increase building energy efficiency. Double EC, low-emissivity (low-E), and clear glazing materials are simulated combined with five WWRs from 0% to 80% with an interval of 20%, four window orientations, and humid subtropical and Mediterranean climates. The results show that a 40% WWR in a southern-facing building façade using a humid subtropical climate setting provides the optimum energy performance of EC glazing among all the configurations tested. Since it was also found that EC glazing reduces the cooling load, it is more suitable for climate conditions characterized by a hotter temperature with greater solar irradiation. Future research should consider the impact of WWR when balancing thermal, lighting and ventilation requirements, and the properties of EC glazing.

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使用不同窗墙比的电致变色智能窗户的建筑物的能源性能

电致变色智能窗是一种很有前途的提高建筑节能性能的智能技术。当应用一种新的玻璃材料时，窗墙比(WWR)被认为是与日光和建筑能量损失有关的重要因素。然而，目前还没有任何研究检查EC智能窗口的效率与WWR之间的关系。本研究的目的是提供减少办公大楼窗户元素的能量损失和环境影响的策略。重点是优化电子商务智能窗户的WWR，以提高建筑能源效率。双EC、低辐射(low-E)和透明玻璃材料的模拟结合了五种WWRs，从0%到80%，间隔为20%，四种窗户朝向，以及潮湿的亚热带和地中海气候。结果表明，在潮湿的亚热带气候环境下，朝南的建筑立面40%的WWR提供了所有测试配置中EC玻璃的最佳能源性能。由于还发现EC玻璃降低了冷负荷，因此它更适合于温度较高且太阳辐照较大的气候条件。未来的研究应该在平衡热学、照明和通风要求以及EC玻璃的性能时考虑水热比的影响。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Green Building ARCHITECTURE-

CiteScore

2.30

自引率

7.10%

发文量

期刊介绍： The purpose of the Journal of Green Building is to present the very best peer-reviewed research in green building design, construction, engineering, technological innovation, facilities management, building information modeling, and community and urban planning. The Research section of the Journal of Green Building publishes peer-reviewed articles in the fields of engineering, architecture, construction, construction management, building science, facilities management, landscape architecture, interior design, urban and community planning, and all disciplines related to the built environment. In addition, the Journal of Green Building offers the following sections: Industry Corner that offers applied articles of successfully completed sustainable buildings and landscapes; New Directions in Teaching and Research that offers guidance from teachers and researchers on incorporating innovative sustainable learning into the curriculum or the likely directions of future research; and Campus Sustainability that offers articles from programs dedicated to greening the university campus.