Energy saving in lighting system with fuzzy logic controller which uses light-pipe and dimmable ballast

Görgülü, Sertaç; Ekren, Nazmi

doi:10.1016/j.enbuild.2013.02.037

Cited by 42 publications

(23 citation statements)

References 22 publications

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“…An average illuminance of 550 lx was achieved through LEDs, as shown in Figure 10. A control unit was installed to maintain an average illuminance of 500 lx in the interior to provide a constant illuminance at all times [12]. For example, when the average illuminance was 300 lx around 17:00, the remaining illuminance of 200 lx was provided by LEDs through the control unit.…”

Section: Simulation and Resultsmentioning

confidence: 99%

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Development of Optical Fiber-Based Daylighting System and Its Comparison

Ullah

Whang

2015

Energies

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Fiber-optic daylighting systems have been shown to be a promising and effective way to transmit sunlight in the interior space whilst reducing electric lighting energy consumption. To increase efficiency in terms of providing uniform illumination in the interior, the current need is to illuminate optical fiber-bundle with uniform light flux. To this end, we propose a method for achieving collimated light, which illuminates the fiber-bundle uniformly. Light is collected through a parabolic concentrator and focused toward a collimating lens, which distributes the light over each optical fiber. An optics diffusing structure is utilized at the end side of the fiber bundle to spread light in the interior. The results clearly reveal that the efficiency in terms of uniform illumination, which also reduces the heat problem for optical fibers, is improved. Furthermore, a comparison study is conducted between current and previous approaches. As a result, the proposed daylighting system turns out convenient in terms of energy saving and reduction in greenhouse gas emissions.

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Section: Simulation and Resultsmentioning

confidence: 99%

“…Several concepts regarding daylighting systems have been demonstrated using light pipes [8][9][10][11][12] and optical fibers [13][14][15][16][17][18][19][20][21][22][23][24][25][26][27]. Most of the designs have issues of non-uniformity and low efficiency in terms of illuminance.…”

Section: Introductionmentioning

confidence: 99%

Development of Optical Fiber-Based Daylighting System and Its Comparison

Ullah

Whang

2015

Energies

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“…A lighting environment can be improved by bringing daylight indoors for visual and physical comfort [9]. To make full use of daylight, high visible-light-transmittance glass windows and dormers can be installed if there is no requirement to protect an area from light.…”

Section: Daylightingmentioning

confidence: 99%

“…Indeed, researchers have developed a few control strategies, Francis and Mahmut first proposed sub-period control and daylighting control, which could make effective use of daylight [6]. More recently, constant illuminance control, scene control and movement detection control have been demonstrated to effect savings in lighting consumption [7][8][9]. However, although a review of the literature finds much research on civil buildings, studies on efficient industrial lighting are far from A c c e p t e d M a n u s c r i p t Lighting system design based on a sensor network for energy savings in large industrial buildings 5 sufficient, particularly for very large industrial buildings, whose potential for energy savings is high.…”

Section: Introductionmentioning

confidence: 99%

Lighting system design based on a sensor network for energy savings in large industrial buildings

Wang

Li²,

Zou

et al. 2015

Energy and Buildings

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“…The potential of energy saving E saved can be evaluated based on a comparison between a conventional controller system and a Fuzzy based system which expressed by equation 5 [11].…”

Section: Fuzzy Supervisory Controlmentioning

confidence: 99%

Potential of Saving Energy Using Advanced Fuzzy Logic Controllers in Smart Buildings in Subtropical Climates in Australia

2014

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Subtropical Regions in Australia are associated with high demand for air conditioning throughout the long Summer which leads to a high energy consumption and consequently high greenhouse gas (GHG) emissions which has a high negative impact on the environment. Using conventional controllers in Building Management Systems (BMS) whose functions are based on ON/OFF, temperature control and in some cases humidity control is not the ultimate solution to save energy. The reason behind the above fact is that, conventional controllers do not take into account real time events such as the number of occupants, indoor air quality (IAQ), natural light illuminations and etc dislike Fuzzy logic based controllers. In the last decade there is a high interest in researching Fuzzy logic based controllers as they have the ability to save energy while maintaining indoor comfort level. In this article a general review on Fuzzy logic based controllers is presented, focusing on the role of technology in saving energy, and its potential in subtropical Central Queensland, Australia. The issues of past and present techniquesare highlighted and discussed accordingly.

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Energy saving in lighting system with fuzzy logic controller which uses light-pipe and dimmable ballast

Cited by 42 publications

References 22 publications

Development of Optical Fiber-Based Daylighting System and Its Comparison

Development of Optical Fiber-Based Daylighting System and Its Comparison

Lighting system design based on a sensor network for energy savings in large industrial buildings

Potential of Saving Energy Using Advanced Fuzzy Logic Controllers in Smart Buildings in Subtropical Climates in Australia

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