Journal ArticleDOI
Performance evaluation of light shelves
Ganga A. Warrier,Benny Raphael +1 more
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TLDR
In this paper, the authors evaluate the potential of light shelves to improve daylighting and visual comfort and find that a horizontal light shelf is able to increase the illuminance in the interior by an average of 21% by rotating the external light shelf to an optimal angle.About:
This article is published in Energy and Buildings.The article was published on 2017-04-01. It has received 41 citations till now. The article focuses on the topics: Daylighting & Illuminance.read more
Citations
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Journal ArticleDOI
Sensitivity analysis and multi-objective optimization of energy consumption and thermal comfort by using interior light shelves in residential buildings
Amir Ebrahimi-Moghadam,Amir Ebrahimi-Moghadam,Paria Ildarabadi,Karim Aliakbari,Faramarz Fadaee +4 more
TL;DR: In this article, the effect of daylight distribution in interior spaces on human thermal comfort conditions and energy consumption in the residential buildings is investigated based on light shelf using simulation methods and tools.
Journal ArticleDOI
A Review of Light Shelf Designs for Daylit Environments
TL;DR: A review of the research realized in the last three decades concerning light shelves together with their associated implications in a building’s daylight performance as well as in its energy balance in a few cases is reviewed.
Journal ArticleDOI
Optimisation of daylight admission based on modifications of light shelf design parameters
Rizki A. Mangkuto,Fathurrahman Feradi,Rialdi Eka Putra,R. Triyogo Atmodipoero,Federico Favero +4 more
TL;DR: In this paper, a study was conducted to optimise daylight admission as ambient lighting in an open-plan examination room of a dental hospital in Bandung, Indonesia, by using genetic algorithm, taking into account the external and internal widths, external tilt angles, and specularity of the light shelves.
Journal ArticleDOI
A simulation-aided approach in improving thermal-visual comfort and power efficiency in buildings
Kang Hao Cheong,Ya Hui Teo,Jin Ming Koh,U. Rajendra Acharya,U. Rajendra Acharya,U. Rajendra Acharya,Simon C. M. Yu +6 more
TL;DR: A simulation-aided approach in analyzing and optimizing lighting and thermal conditions in building interiors, encompassing the modelling of the interior space in virtual facilities, ray-tracing simulations for illumination prediction, and computational fluid dynamics/heat transport simulations for airflow and ambient temperature predictions is presented.
Journal ArticleDOI
Energy-saving performance of light shelves under the application of user-awareness technology and light-dimming control
TL;DR: The lighting energy saving performance of the light shelf that is user-aware and applies light dimming technology proposed here was verified and the appropriate standards and lighting energy consumption levels for each Case were found.
References
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Journal ArticleDOI
Evaluation methods and development of a new glare prediction model for daylight environments with the use of CCD cameras
Jan Wienold,Jens Christoffersen +1 more
TL;DR: In this article, a CCD camera-based luminance mapping technology was used to provide new insight into the impact of luminance distributions on glare, and a new index, daylight glare probability (DGP), was developed and is presented in this paper.
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Dynamic Daylight Performance Metrics for Sustainable Building Design
TL;DR: In this paper, a review of previously suggested dynamic daylight performance metrics, discussing the capability of these metrics to lead to superior daylighting designs and their accessibility to nonsimulation experts, is presented.
Journal ArticleDOI
Useful daylight illuminances: A replacement for daylight factors
Azza Nabil,John Mardaljevic +1 more
TL;DR: The UDI paradigm is designed to aid the interpretation of climate-based analyses of daylight illuminance levels that are founded on hourly meteorological data for a period of a full year, and is well-suited for teaching purposes.
Journal ArticleDOI
Useful daylight illuminance: a new paradigm for assessing daylight in buildings:
A. Nabil,John Mardaljevic +1 more
TL;DR: A new paradigm to assess daylight in buildings called ‘useful daylight illuminance’, or UDI, is introduced, founded on an annual time-series of absolute values for illuminances predicted under realistic skies generated from standard meteorological datasets.
Journal ArticleDOI
Evaluating daylight performance of light shelves combined with external blinds in south-facing classrooms in Athens, Greece
TL;DR: The way in which daylight can be efficiently used in a typical classroom in Athens, Greece, by improving its distribution in the space and providing shade is addressed.
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Evaluating daylight performance of light shelves combined with external blinds in south-facing classrooms in Athens, Greece
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