Results 211 to 220 of about 70,837 (258)
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A new method for light shelf design according to latitudes: CUN-OKAY light shelf curves
Journal of Building Engineering, 2017Abstract The effect of location on earth to the light shelf position & size and the correlation between latitudes with light shelf dimensions is explored on a sample office unit for different heights in this manuscript. For this purpose, a typical office unit is modelled with Ecotect software and variety size/position of light shelves are tested to ...
Cuneyt Kurtay
exaly +3 more sources
Effectiveness of a perforated light shelf for energy saving
Energy and Buildings, 2017Abstract Light shelves are natural lighting systems, which have been highlighted in various studies as a suitable approach for reducing energy consumption. However, external light shelves are at risk of being destroyed by high wind pressure when used on the upper stories of high-rise buildings.
Janghoo Seo +2 more
exaly +2 more sources
Building and Environment, 2002
Abstract The present paper deals with the influence of light shelf and model reflectance on light shelf performance. The variation with the day of the year of the mean hourly illuminance values measured at 0.50 m . from a south facing side window in 1 : 10 models has been studied for hours with unit sunshine fraction σ. The four light shelves
Alfonso Soler
exaly +2 more sources
Abstract The present paper deals with the influence of light shelf and model reflectance on light shelf performance. The variation with the day of the year of the mean hourly illuminance values measured at 0.50 m . from a south facing side window in 1 : 10 models has been studied for hours with unit sunshine fraction σ. The four light shelves
Alfonso Soler
exaly +2 more sources
Linear lighting systems for shelf and cove lighting
SPIE Proceedings, 2005LED tapes are emerging as cost effective light sources for longitudinal applications, such as strip lighting and accent lighting on buildings, and shelf and cove lighting for interior lighting. Such applications can be sorted into direct viewing and illuminative.
William A. Parkyn +2 more
openaire +1 more source
Advanced Science and Technology Letters, 2014
Energy used in buildings takes up 38-39% worldwide, among which lighting accounts for 22-28%. If lighting energy consumption is reduced globally, it is possible to accelerate energy saving. Thus, this study aims to propose a light shelf system among natural lighting systems to save lighting energy.
Sunhyeon Kwon +2 more
openaire +1 more source
Energy used in buildings takes up 38-39% worldwide, among which lighting accounts for 22-28%. If lighting energy consumption is reduced globally, it is possible to accelerate energy saving. Thus, this study aims to propose a light shelf system among natural lighting systems to save lighting energy.
Sunhyeon Kwon +2 more
openaire +1 more source
Light shelf performance in Madrid, Spain
Building and Environment, 1997Abstract The performance of a light shelf with a reflectance of about 91% after excluding the specular component (reflectance about 1%), providing for solar protection during the long, hot, dry summer season, is studied in Madrid (40.4°N, 4.4°W) using two scale models (1:10) with rectangular openings facing south, one taken as a reference and the ...
Alfonso Soler, Pilar Oteiza
openaire +1 more source
Advanced Science and Technology Letters, 2014
Due to a global energy problem, there is a rising interest in energy saving around the world, and the lighting energy used in buildings accounts for 22% to 28% of total energy used in buildings. Therefore, reducing the consumption of lighting energy could bring effective energy saving.
Sunhyeon Kwon +2 more
openaire +1 more source
Due to a global energy problem, there is a rising interest in energy saving around the world, and the lighting energy used in buildings accounts for 22% to 28% of total energy used in buildings. Therefore, reducing the consumption of lighting energy could bring effective energy saving.
Sunhyeon Kwon +2 more
openaire +1 more source
Advanced Science and Technology Letters, 2014
Due to increased indoor lighting energy consumption, various studies for reducing its consumption are being carried out. Among various methods, the light-shelf can bring natural light into indoors, reducing the consumption of lighting energy during daytime.
Yuchang Choi +2 more
openaire +1 more source
Due to increased indoor lighting energy consumption, various studies for reducing its consumption are being carried out. Among various methods, the light-shelf can bring natural light into indoors, reducing the consumption of lighting energy during daytime.
Yuchang Choi +2 more
openaire +1 more source
Evaluation of a light shelf based on energy consumption for lighting and air conditioning
Indoor and Built Environment, 2017The shading effects of light shelves in indoor thermal environments have not been investigated to date. Thus, this study aims to identify the effectiveness and appropriate parameters required for a light shelf by evaluating its performance in the presence of lighting and air conditioning.
Heangwoo Lee, Suktae Kim, Janghoo Seo
openaire +1 more source