The effect of venetian blinds on daylight photoelectric control performance

被引：39

作者：

Lee, ES ^{[1
]}

DiBartolomeo, DL ^{[1
]}

Selkowitz, SE ^{[1
]}

机构：

[1] Univ Calif Berkeley, Lawrence Berkeley Lab, Bldg Technol Dept, Environm Energy Technol Div, Berkeley, CA 94720 USA

来源：

JOURNAL OF THE ILLUMINATING ENGINEERING SOCIETY | 1999年 / 28卷 / 01期

关键词：

D O I：

10.1080/00994480.1999.10748247

中图分类号：

O43 [光学];

学科分类号：

070207 [光学]; 0803 [光学工程];

摘要：

We investigate how a venetian blind, a common but optically complex fenestration system, contributes to the unreliable performance of daylighting control systems. Using a fully instrumented, full-scale testbed facility, we monitored the daylighting performance of a modified closed-loop proportional photoelectric control system in a private office over the course of a year. The ratio of work-plane illuminance from daylight to photosensor signal is characterized in terms of solar condition and venetian blind angle. Variations in this ratio causes actual illuminance levels to be periodically insufficient. This type of characterization can be used by the installer to determine whether the initial control adjustments made during commissioning will lead to reliable performance under most daylight conditions. Commissioning guidelines are given with caution, based on our observations from this specific case study.

引用

页码：3 / +

页数：22

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