Daylight harvesting control systems design recommendations based on a literature review

Gentile, Niko; Dubois, Marie-Claude; Laike, Thorbjörn

doi:10.1109/eeeic.2015.7165237

Cited by 12 publications

(15 citation statements)

References 49 publications

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“…Consequently, the study also highlights that there is a strong need for better guidance on the installation, commissioning and operation of controls systems. Gentile et al [47] stress that during the design and commissioning of a DLCS, technical robustness, architectural integration and human acceptance are critical aspects to address that can limit the effectiveness of these controls in achieving energy saving and comfort. To overcome these obstacles, some researchers have proposed new assessment methodology and metrics to estimate the energy saving performance of DLCSs: these include the work by Bonomolo et al [48] and by Bellia and Fragliasso [49,50].…”

Section: Introductionmentioning

confidence: 99%

“…Beside DLCSs, also occupancy-based controls can contribute to energy savings and comfort for occupants, especially when they are combined with DLCSs [51][52][53][54]. The above mentioned review by Gentile et al [47] described a relationship between the energy saving concerned with different types of controls and the occupancy profile of a space. In detail, higher energy savings can be obtained when the occupancy is around 27-44% of the total time, while in the presence of a higher occupancy ratio (over 44%), the best saving can be obtained with occupancy-based lighting control strategies, such as presence sensing [23]).…”

Section: Introductionmentioning

confidence: 99%

“…For occupancy ratios lower than 27%, a manual switch with absence sensor seems to be the best better strategy, as parasitic losses for the sensors and control modules might be sizeable in comparison to the total electricity used for lighting [55,56]. For both DLCS and occupancy control, a limited acceptance by the occupant was also highlighted [47].…”

Section: Introductionmentioning

confidence: 99%

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Energy Saving Generated Through Automatic Lighting Control Systems According to the Estimation Method of the Standard EN 15193-1

Verso

Pellegrino

2019

Journal of Daylighting

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The standard EN 15193-1:2017 "Energy performance of buildings -Energy requirements for lighting" introduced a detailed method to calculate the energy demand for lighting in buildings. The method contains a calculation of the daylight supply, which accounts for the impact of lighting control systems, both daylight-linked and occupancy-based. This paper presents the results of a study carried out to quantify, with respect to a manual on/off switch, the energy savings due to the four typologies of daylight-linked controls included in the standards, as well as their combination with an occupancy auto off control. To highlight the factors that affect the amount of saved electric energy, several spaces were considered, with different daylight availability, windows orientation and shading system, located in sites at different latitudes and climate conditions, and considering two types of building: offices and classrooms. A database of 2880 cases was built. As a second step of the study, for each site and type of control, the minimum window-to-wall ratio necessary to obtain a pre-defined saving was calculated. The results show for what combinations of variables two target savings of 20% and of 30% can be reached using the photodimming and occupancy controls contained in the standard.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Energy Saving Generated Through Automatic Lighting Control Systems According to the Estimation Method of the Standard EN 15193-1

Verso

Pellegrino

2019

Journal of Daylighting

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“…A hybrid lighting system (HLS) with electric lighting and daylight delivered into the building was developed in Reference [60,61]. The energy performance of an office building with daylight integration is discussed in Reference [62]. The research has investigated the energy savings in a lighting system based on both daylighting and artificial light, while taking visual comfort into consideration.…”

Section: Literature Reviewmentioning

confidence: 99%

Feasibility Study and Impact of Daylight on Illumination Control for Energy-Saving Lighting Systems

Bunjongjit

Ngaopitakkul

2018

Sustainability

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The main goal of energy conservation should be reducing the consumption of energy resources. Due to energy and environmental concerns in recent years, to reduce energy consumption in a lighting system, which has been one of the prime targets of energy saving, daylighting has been investigated and has become one of the energy-efficiency techniques widely applied in buildings. This paper presents an analysis of T5 fluorescent luminaire lighting control using daylight in a building. The study is conducted in two parts; simulation of a lecture room using the daylighting function of the DIALux program is performed to estimate the effect of daylighting on a task area (workplane). Another part is an experimental setup to evaluate the performance of a lighting control unit that is installed for a T5 fluorescent luminaire with a dimmable electronic ballast. The efficiency of the lighting control in term of illumination on the task area and energy consumption are also evaluated and compared with the standard case. The simulation results show that daylighting increases illuminance on a task area, especially on the window side, so the lighting system can significantly reduce its power consumption compared with a standard case (without lighting control). The experimental result shows that upon installing the lighting control with daylighting, both the average illuminance and the energy consumption in each time period are decreased compared with in the standard case. Lighting control with daylighting tries to set the average illuminance on a task area to less than 500 lux, corresponding to the amount of daylight passing through window shutters. The obtained results are useful for the design of a T5 fluorescent luminaire with lighting control using daylighting in a building lighting system for energy efficiency and reducing energy consumption, including the average illuminance on the task area, according to a relevant standard.

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“…Daylight Harvesting Systems (DHS) offer the most effective energy saving with adjusting the lights automatically depending on the amount of daylight in a room space [13]. Furthermore, it may help to reduce one-third of the total energy costs for buildings with reducing the electricity used for artificial lighting that can mitigate greenhouse gas emissions [14,15].…”

Section: Introductionmentioning

confidence: 99%

Illuminance levels based on different sky conditions by considering daylight harvesting

Ahmad

Radzi

Abdullah

2020

IJEECS

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Daylight Harvesting Systems (DHS) offer the most effective and significant to reduce energy consumption. In the lighting system, there are various problems which include waste of energy consumption, inappropriate lighting and increasing greenhouse effect. Therefore, the waste of energy consumption should be reduced by controlling the dimming levels of artificial lighting according to the standard thus reducing the greenhouse effect. Hence, this paper considered the daylight adaptive for the lighting system to determine the dimming level and illuminance level for the office room. The simulation has been carried out using DIALux simulation lighting software to simulate the average daylight and average illuminance level with different conditions sky, which is clear, average, and overcast sky. Based on the result, the illuminance level has complied with the European Standard EN12464-1. Furthermore, the presence of daylight and weather conditions plays an essential role in the lighting system. The illuminance and dimming levels are different depending on the time and type of sky condition at that time. Therefore, the daylight adaptive in the lighting system can reduce the use of artificial light in the room.

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Daylight harvesting control systems design recommendations based on a literature review

Cited by 12 publications

References 49 publications

Energy Saving Generated Through Automatic Lighting Control Systems According to the Estimation Method of the Standard EN 15193-1

Energy Saving Generated Through Automatic Lighting Control Systems According to the Estimation Method of the Standard EN 15193-1

Feasibility Study and Impact of Daylight on Illumination Control for Energy-Saving Lighting Systems

Illuminance levels based on different sky conditions by considering daylight harvesting

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