Research Article

Development and Performance Evaluation of Light Shelves Using Width-Adjustable Reflectors

Table 1

Details of previous studies on light shelves.

Title of studyYearLight shelf variables
WidthWidth adjustability

Effectiveness of a perforated light shelf for energy saving [8]2017Fixed at a certain valueNot considered
Performance evaluation of light shelves [10]2017Fixed at a certain valueNot considered
Daylighting performance improvement of a light shelf using diffused reflection [11]2017Fixed at a certain valueNot considered
Study on movable light shelf system with location-awareness technology for lighting energy saving [12]2017Fixed at a certain valueNot considered
Investigating the influence of light shelf geometry parameters on daylight performance and visual comfort, a case study of educational space in Tehran, Iran [13]2016Fixed at a certain valueNot considered
Evaluating daylight performance of light shelves combined with external blinds in south-facing classrooms in Athens, Greece [14]2016Fixed at a certain valueNot considered
Dynamic internal light shelf for tropical daylighting in high-rise office buildings [15]2016Fixed at a certain valueNot considered
The effects of direct sunlight on light shelf performance under tropical sky [16]2015Fixed at a certain valueNot considered
New static light shelf system design of clerestory windows for Hong Kong [17]2014Fixed at a certain valueNot considered
Maximizing the light shelf performance through interaction between light shelf geometries and a curved ceiling [18]2010Fixed at a certain valueNot considered
Optimizing performance of the light shelf by modifying ceiling geometry in highly luminous climates [19]2008Fixed at a certain valueNot considered
Indoor daylight climate—influence of light shelf and model reflectance on light shelf performance in Madrid for hours with unit sunshine fraction [20]2002Fixed at a certain valueNot considered
Advanced optical daylighting systems: light shelves and light pipes [21]1997Fixed at a certain valueNot considered
The development of coefficients of utilization for light shelves [22]1993Fixed at a certain valueNot considered