Arid
DOI10.1016/j.solener.2020.06.035
Advanced parametric louver systems with bi-axis and two-layer designs for an extensive daylighting coverage in a deep-plan office room
Eltaweel, Ahmad; Su, Yuehong; Lv, Qinghua; Lv, Hui
通讯作者Eltaweel, A ; Su, YH
来源期刊SOLAR ENERGY
ISSN0038-092X
出版年2020
卷号206页码:596-613
英文摘要Advanced daylighting systems have become commonly used in modern architecture for a more sustainable environment. The mainstream of recent daylighting studies focuses not only on the quantity but also the quality of daylight delivered to an interior space. The more uniform daylight is distributed in the required illuminance range, the more light stability is achieved, and the longer time is illuminated by daylight, the more electrical lighting energy can be potentially saved. This study proposes an advanced daylighting design based on a parametrically controlled louver with reflective slats to redirect sunlight onto a ceiling, which can then serve as a source of diffuse light to illuminate a room. The design aims to achieve steadier and more uniform daylight distribution during the working hours in a deep-plan office room. The angle of each slat of the louver is para-metrically controlled to target a corresponding area on the ceiling. In order to achieve a steadier daylighting, a bi-axis design and a two-layer design with a shifted target are evaluated and compared with a one-axis design. A daylighting analysis of the proposed design is exemplified for a south-oriented 8 m deep office room in a hot arid territory. The daylight analysis was performed using Grasshopper software as a parametric tool to link with Radiance and DAYSIM daylighting analysis. The proposed design shows promising merit that it can provide a relatively steady and distributed daylight coverage for more than 90% of the floor area within the recommended acceptable range 300-500 lx during the working hours.
英文关键词Parametric louver One-axis Bi-axis & two-layer Percentage daylight coverage Deep-plan office Grasshopper
类型Article
语种英语
收录类别SCI-E
WOS记录号WOS:000566919100004
WOS关键词ELECTROCHROMIC WINDOWS ; ENERGY PERFORMANCE ; VISUAL COMFORT ; BUILDINGS ; FENESTRATION ; SIMULATION ; CHALLENGES ; DEVICES ; BLINDS
WOS类目Energy & Fuels
WOS研究方向Energy & Fuels
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/326103
作者单位[Eltaweel, Ahmad; Su, Yuehong] Univ Nottingham, Dept Architecture & Build Environm, Fac Engn, Nottingham NG7 2RD, England; [Lv, Qinghua; Lv, Hui] Hubei Univ Technol, Sch Sci, Wuhan 430068, Hubei, Peoples R China
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Eltaweel, Ahmad,Su, Yuehong,Lv, Qinghua,et al. Advanced parametric louver systems with bi-axis and two-layer designs for an extensive daylighting coverage in a deep-plan office room[J],2020,206:596-613.
APA Eltaweel, Ahmad,Su, Yuehong,Lv, Qinghua,&Lv, Hui.(2020).Advanced parametric louver systems with bi-axis and two-layer designs for an extensive daylighting coverage in a deep-plan office room.SOLAR ENERGY,206,596-613.
MLA Eltaweel, Ahmad,et al."Advanced parametric louver systems with bi-axis and two-layer designs for an extensive daylighting coverage in a deep-plan office room".SOLAR ENERGY 206(2020):596-613.
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