Parcourir par sujet "Light emitting diodes"
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Estimating the benefits of increasing the recycling rate of lamps from the domestic sector: Methodology, opportunities and case study
(2020)The scope of this paper is to identify the benefits of lamp recycling from the domestic sector. Data related to the recycled lamps was obtained from two recycling companies and were compared to those related to the waste ... -
Harvesting daylight with LED or T5 fluorescent lamps? The role of dimming
(2017)While the efficiency of the Lighting Emitting Diodes (LED) is increasing and new installations are being implemented, their control due to the adoption of daylight harvesting systems, hasn't been sufficiently examined yet, ... -
Illumination, data transmission, and energy harvesting: The threefold advantage of VLC
(2017)Visible light communication (VLC) is a promising technology that meets illumination and information transmission requirements in an indoor environment. Because light waves convey energy, a VLC link may exploit that fact ... -
A Low Complexity Indoor Visible Light Positioning Method
(2021)The continuous positioning of a mobile user equipment (MU) in a prompt way is a fundamental requirement in several indoor applications related to ubiquitous computation, assisted living environments, and security/surveillance ... -
Minimizing energy consumption for artificial lighting in a typical classroom of a Hellenic public school aiming for near Zero Energy Building using LED DC luminaires and daylight harvesting systems
(2019)The energy consumption for the artificial lighting in school buildings is one of the main consumers of electricity. In Greece, there is a large number of school buildings with quite old lighting systems using luminaires ... -
Minimizing lighting consumption in existing tunnels using a no-cost fine-tuning method for switching lighting stages according revised luminance levels
(2019)Visual adaptation demands increased illuminance in the tunnel entrance, which results in an increased number of installed luminaires and power consumption of each luminaire. There are norms that define the required luminance ... -
Revision of threshold luminance levels in tunnels aiming to minimize energy consumption at no cost: Methodology and case studies
(2020)Because of the absence of lighting calculation tools at the initial stage of tunnel design, the lighting systems are usually over-dimensioned, leading to over illumination and increased energy consumption. For this reason, ...