Results 261 to 270 of about 21,918 (302)

Daylight performance of lightpipes

Solar Energy, 2000
Abstract Increasing the use of natural daylight for lighting purposes in buildings can offer large savings in electricity usage, up to 20–30% of total building energy consumption. One solution is the use of lightpipes that can not only bring light into otherwise inaccessible or dimly lit places, but also improve the internal environment without ...
G Oakley, S.B Riffat, L Shao
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Comprehensive evaluation of window-integrated semi-transparent PV for building daylight performance

Renewable Energy, 2020
© 2019 Elsevier Ltd Building-integrated semi-transparent photovoltaic windows (PV windows) have been considered as a potential candidate to replace conventional windows to improve building energy efficiency and hence reduce carbon emissions.
Dingming Liu, Yanyi Sun, Yupeng Wu
exaly   +3 more sources

Daylight performance of toplighting: An overview

2021
Novel and advanced daylighting strategies and systems can noticeably decrease artificial lighting consumption and considerably improve light quality in the interior environments. In modern architecture, employment of rooflights is prevalent since they transmit daylight into deep plans or spaces lacking facade.
rostamzad, sahar, Khakzand, Mehdi, faizi, mohsen, Sanaieian, Haniyeh   +3 more
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The performance of innovative daylighting systems

Renewable Energy, 1994
Abstract Innovative daylighting systems have four key aims; to increase daylight levels deep within rooms, to improve daylight uniformity, to control direct sunlight and to reduce glare. Results from experimental studies at the Building Research Establishment (BRE) indicated that the systems tested (prismatic glazing, prismatic film, mirrored louvres
P.J. Littlefair, M.E. Aizlewood, A.B. Birtles   +2 more
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Daylighting Performance in Residential Buildings

Architectural Science Review, 1999
The amount of daylight entering a building and its distribution depend an both interior and exterior factors. In Hong Kong, most buildings are built close to each other and hence the external environment plays a significant role in the daylighting designs.
Danny H. W. Li, S. M. Lo, Joseph C. Lam, Richard K. K. Yuen   +3 more
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Daylight Impact on Energy Performance of Internal Lighting

IEEE Transactions on Industry Applications, 2011
Daylight in interior offers a considerable contribution of energy saving, the key is to design an integrated lighting system between the electric lighting system configuration and its control strategy. An optimal lighting system has to consider the different presence of daylight in the zones to arrange the most favorable luminaires layout. An automatic
PARISE, Giuseppe, MARTIRANO, Luigi
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Daylighting performance of optical rods

Solar Energy, 2003
A novel tubular daylighting device, the light rod, is shown to have high transmittance throughout the day in Singapore. Constructed of an optical quality polymer and clad by air, the light rod is intended for use in buildings where fabric constraints prevent the use of larger daylighting devices.
Shao, L., Callow, J. M.
openaire   +2 more sources

Daylight Performance of Buildings

2014
As part of Daylight Europe, the daylighting behaviour of 60 buildings was observed and measured during a three year period. Buildings of many different types, sizes and ages were included - from offices to museums, libraries, churches, houses, airports and factories; from Classical buildings to modern constructions, and from a small single room to an ...
openaire   +1 more source

Daylight performance predictions

2019
Daylighting describes the use of natural light in buildings. The objectives for daylighting a building are manifold and range from questions of aesthetics, occupant health and comfort to energy savings for lighting and space conditioning. Daylight simulations can help design teams to address these multiple aspects by allowing them to (a) predict the
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Total Energy Performance of Atria with Daylight

HKIE Transactions, 2006
The current design trend for commercial buildings in Hong Kong is to introduce shopping arcade at the lower floors and provide atrium with daylight. If daylight is properly utilised, the electrical lighting energy can be saved. On the other hand, introduction of atrium will allow the entrance of solar heat which will introduce extra cooling load to the
Daniel W T To, T K Chan
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