Maintenance Factor Identification in Outdoor Lighting Installations Using Simulation and Optimization Techniques

Ogando-Martínez, Ana; López-Gómez, Javier; Febrero-Garrido, Lara

doi:10.3390/en11082169

Cited by 9 publications

(6 citation statements)

References 25 publications

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“…This process is used to generate a model where the deterioration of the road lighting system is taken into account. For this, in order to improve the model and reduce errors made during the modeling and data collection stages, the calibration methodology presented in previous works of the authors is applied [37].…”

Section: Maintenance Factor Identificationmentioning

confidence: 99%

Model Calibration Methodology to Assess the Actual Lighting Conditions of a Road Infrastructure

et al. 2019

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Street lighting plays an important role in the comfort and safety of drivers and pedestrians, so the control and management of the lighting systems operation and consumption is an essential service for a city. In this document, a methodology is presented to calibrate lighting models in order to assess the lighting performance through simulation techniques. The objective of this calibration is to identify the maintenance factor of the street lamps, determine the real average luminance coefficient of the road pavement and adapt the reflection properties of the road material. The method is applied in three stages and is based on the use of Radiance and GenOpt software suits for the modeling, simulation, and calibration of lighting scenes. The proposed methodology achieves errors as low as 13% for the calculation of illuminance and luminance, evincing its potential to assess the actual lighting conditions of a road.

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Section: Maintenance Factor Identificationmentioning

confidence: 99%

Model Calibration Methodology to Assess the Actual Lighting Conditions of a Road Infrastructure

et al. 2019

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“…Nevertheless, public lighting systems also have a relevant impact in terms of energy consumption and light pollution, representing one of the most significant expenses in the municipal administrations budget, primarily due to energy and maintenance costs. According to [6], the annual energy consumption for road lighting in Europe was approximately 35 TWh, representing 1.3% of the energy consumption of electricity. For municipalities, outdoor urban lighting installations significantly affect up to 80% of the total use of electricity, and public street lighting can account for up to 40-60% of a city's budget energy expenditure [7,8].…”

Section: Introductionmentioning

confidence: 99%

“…In particular, the energy (and consequently economic) savings were assessed by monitoring in-field the energy consumption data and/or through the estimation of energy performance indicators. Instead, simulation methods were mainly used to assess the photometric performances of a lighting system, since simulation tools are nowadays considered affordable and promising techniques in the field of lighting optimization [35].…”

Section: Introductionmentioning

confidence: 99%

Long-Term Monitoring Campaign of LED Street Lighting Systems: Focus on Photometric Performances, Maintenance and Energy Savings

Valetti,

Piccablotto,

Taraglio

et al. 2023

Sustainability

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The renovation of public lighting installations by replacing the traditional systems with LED technologies and introducing smart lighting control systems is a policy widely adopted to contain energy consumption and expenditure. Additionally, the long-term monitoring of the depreciation of the new lighting systems is a crucial issue. The aim of this study is to report the results of in-field measurements of new LED lighting systems in the city of Turin (Italy). A method was defined to assess: (i) energy performance (through data from the remote-control system); (ii) photometric performance (through in-field measurement campaigns); and (iii) depreciation of the photometric performance over a period of approximately 5 years. Results demonstrated that the new LED systems allow us to achieve an average energy saving of 51% compared to the ex-ante condition, improving the photometric performances and compiling the standard requirements by lowering the over-illumination levels. Moreover, the measured depreciation of the LED systems over time was compared with the predicted depreciation, estimated based on the calculation method proposed in Standards BS 5489-1:2020 and ISO/CIE TS 22012:2019. The results obtained showed that the measured depreciation of the photometric performance was closer to the predicted depreciation trend according to BS 5489-1:2020 (variations between 0% and 4%), while greater variations (between 17% and 23%) emerged considering the ISO/CIE TS 22012:2019.

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“…However, it consumes a substantial amount of energy (Shahzad et al, 2018 ) and it continues to rise at a rate of around 6% each year, globally (Jagerbrand, 2020 ). Due to its inefficiency structure, street and road lights currently account for 2.3% global energy consumption (Ogando-Martínez et al, 2018 ). Furthermore, the amount of consumed energy by street lighting accounts for 30–40% of the total energy consumption of the city (Kaleem et al 2016 ; Ożadowicz and Grela, 2017 ).…”

Section: Introductionmentioning

confidence: 99%

“…Lighting simulation was carried out using Radiance and optimization carried out using PSO/HJ algorithm. Ogando-Martínez et al ( 2018 ) Exterior Street lighting A multi-criteria decision making tool was designed for energy efficiency optimization of public street lighting systems. Carli et al ( 2018 ).…”

Section: Introductionmentioning

confidence: 99%

Assessing the electricity energy efficiency of university campus exterior lighting system and proposing energy-saving strategies for carbon emission reduction

Kerem

2022

Microsyst Technol

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This paper presents efficiencies research and energy-saving strategies for carbon emission reduction of the exterior lighting system of Avşar Campus of Kahramanmaraş Sütçü İmam University, Turkey. Once the campus’s average energy consumption for the previous five years was calculated, it was found to be 18,802 Megawatt hour/year (MWh/year), with 6,203 carbon dioxide (CO 2 ) tons/year emissions. Also, the annual electrical energy consumption for exterior lighting was calculated as 670,395 MWh/year, with annual emissions of 221,170 CO 2 tons/year. Inefficient lamp choices in exterior lighting systems and longer than necessary operating times have been identified as the causes of these high values. That’s because High-Pressure Sodium (HPS) lamps with an installed power of 109,050 Kilowatt (kW), which have a low efficiency but a high energy consumption, provide for 70% of exterior lighting. Thus, seven unique energy-saving strategies have been designed with the aim of decreasing total energy consumption and achieving more cost savings as well as less harmful emissions released into the atmosphere. All of the strategies were designed under the following three headings: dimming method, optimization of lamps’ operation times, and retrofitting lamps with new and technological ones. The study’s novelty lies in the creation of seven unique energy-saving strategies for the first time in light of the three headings highlighted, as well as their adjustment to a sophisticated campus with such high energy consumption. Once all of the proposed strategies are compared to the current system, it has been discovered that strategy-7 saves 81.656% energy consumption (547,418 MWh/year), 180,599 CO 2 tons/year saving, and € 49,268 (€/year) cost-saving. Such a low energy consumption is vital for a rapidly growing and expanding campus in terms of carbon emissions, cost savings, and environmental quality.

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Maintenance Factor Identification in Outdoor Lighting Installations Using Simulation and Optimization Techniques

Cited by 9 publications

References 25 publications

Model Calibration Methodology to Assess the Actual Lighting Conditions of a Road Infrastructure

Model Calibration Methodology to Assess the Actual Lighting Conditions of a Road Infrastructure

Long-Term Monitoring Campaign of LED Street Lighting Systems: Focus on Photometric Performances, Maintenance and Energy Savings

Assessing the electricity energy efficiency of university campus exterior lighting system and proposing energy-saving strategies for carbon emission reduction

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