Journal ArticleDOI
Lighting energy savings in offices using different control systems and their real consumption
TLDR
In this article, the authors compared the potential of lighting energy savings in office rooms by using different control systems, for three locations in Europe and the four main orientations, and concluded that the control of the electrical power in function of daylight leads to very high savings; they slightly depend on the room orientation and the location.About:
This article is published in Energy and Buildings.The article was published on 2008-01-01. It has received 223 citations till now. The article focuses on the topics: Occupancy sensor & Daylight.read more
Citations
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Journal ArticleDOI
Energy and cost analysis of semi-transparent photovoltaic in office buildings
TL;DR: In this paper, the thermal and visual properties, energy performance and financial issue of a semi-transparent photovoltaic (PV) facade were studied, and the results showed that such an integrated system could produce electricity and cut down electric lighting and cooling energy requirements to benefit the environmental, energy and economic aspects.
Journal ArticleDOI
A review on lighting control technologies in commercial buildings, their performance and affecting factors
Mohammad Asif ul Haq,Mohammad Yusri Hassan,Hayati Abdullah,Hasimah Abdul Rahman,Pauzi Abdullah,Faridah Hussin,Dalila Mat Said +6 more
TL;DR: In this paper, the authors investigate the various control system types, the development of their associated technologies, the savings reported from their application and the factors affecting their performance in terms of energy savings as well as user acceptance.
Journal ArticleDOI
Daylight integrated illumination control of LED systems based on enhanced presence sensing
TL;DR: The goal is to determine the optimum dimming levels of the LED sources so as to minimize the power consumption while rendering (i) uniform illumination at a given illumination level in workspace regions that are occupied, and a minimum illumination level of lower value in unoccupied regions, while taking daylight distribution over the workspace plane into account.
Journal ArticleDOI
A review of daylight illuminance determinations and energy implications
TL;DR: Determinations of the exterior and interior daylight and lighting energy savings are key issues to demonstrate the benefits based on daylighting designs and evaluations and a review of daylight illuminance determinations and the lighting energy reductions due to daylighting schemes is provided.
Journal ArticleDOI
Daylight availability assessment and its potential energy saving estimation –A literature review
Xu Yu,Yuehong Su +1 more
TL;DR: A review of metrics and methods for indoor daylight availability assessment, as well as estimation methods used for predicting potential energy saving from daylight is presented in this paper, where the authors provide building designers or operators some useful information so that more daylight schemes could be considered in sustainable building design.
References
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Journal ArticleDOI
Lightswitch-2002: a model for manual and automated control of electric lighting and blinds
TL;DR: A simulation algorithm is proposed that predicts the lighting energy performance of manually and automatically controlled electric lighting and blind systems in private and two-person offices and features four different user types to mimic variation in control behavior between different occupants.
Journal ArticleDOI
Validation of dynamic RADIANCE-based daylight simulations for a test office with external blinds
TL;DR: The study encompasses the validation of the dynamic, RADIANCE-based daylight simulation method DAYSIM, which uses the concept of daylight coefficients and the Perez sky model to predict the short-time-step development of indoor illuminances, and it has been found that the treatment of direct sunlight strongly influences the accuracy of the daylight coefficient method.
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Occupant preferences and satisfaction with the luminous environment and control systems in daylit offices: a literature review
TL;DR: In this paper, the authors present an overview of peer-reviewed investigations of subjective issues linked to the use of daylighting in office buildings, particularly studies of preferred physical and luminous conditions in daylit office environments, and studies of occupant satisfaction and acceptance of electric lighting and window shading controls.
Journal ArticleDOI
Monitoring manual control of electric lighting and blinds
Christoph Reinhart,K Voss +1 more
TL;DR: In this article, the authors validate and extend present knowledge of the degree and kind of manual control strategies of blinds and electric lighting systems that are used in private and two-person offices.
Journal ArticleDOI
The simulation of annual daylight illuminance distributions — a state-of-the-art comparison of six RADIANCE-based methods
TL;DR: In this article, the authors discuss simulation results of annual indoor illuminance distributions for two office geometries situated in Freiburg, Germany, calculated with six different RADIANCE-based daylight simulation methods.
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