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

Energies ◽  
2018 ◽  
Vol 11 (8) ◽  
pp. 2169 ◽  
Author(s):  
Ana Ogando-Martínez ◽  
Javier López-Gómez ◽  
Lara Febrero-Garrido
Keyword(s):  
Modeling And Simulation ◽  
Open Source ◽  
Optimization Techniques ◽  
Lighting System ◽  
Street Lighting ◽  
Optimization Program ◽  
Simulation And Optimization ◽  
The Road ◽  
Road Lighting ◽  
Combined Use

This document addresses the development of a novel methodology to identify the actual maintenance factor of the luminaires of an outdoor lighting installation in order to assess their lighting performance. The method is based on the combined use of Radiance, a free and open-source tool, for the modeling and simulation of lighting scenes, and GenOpt, a generic optimization program, for the calibration of the model. The application of this methodology allows the quantification of the deterioration of the road lighting system and the identification of luminaires that show irregularities in their operation. Values lower than 9% for the error confirm that this research can contribute to the management of street lighting by assessing real road conditions.

scholarly journals Energy-saving quality road lighting with colloidal quantum dot nanophosphors

Nanophotonics ◽  
2014 ◽  
Vol 3 (6) ◽  
pp. 373-381 ◽  
Author(s):  
Talha Erdem ◽  
Yusuf Kelestemur ◽  
Zeliha Soran-Erdem ◽  
Yun Ji ◽  
Hilmi Volkan Demir
Keyword(s):  
Energy Saving ◽  
Light Sources ◽  
Experimental Proof ◽  
Street Lighting ◽  
Light Emitting ◽  
The Road ◽  
Road Lighting ◽  
The Usa ◽  
The Uk ◽  
Conversion Efficiencies

AbstractHere the first photometric study of road-lighting white light-emitting diodes (WLEDs) integrated with semiconductor colloidal quantum dots (QDs) is reported enabling higher luminance than conventional light sources, specifically in mesopic vision regimes essential to street lighting. Investigating over 100 million designs uncovers that quality road-lighting QD-WLEDs, with a color quality scale and color rendering index ≥85, enables 13–35% higher mesopic luminance than the sources commonly used in street lighting. Furthermore, these QD-WLEDs were shown to be electrically more efficient than conventional sources with power conversion efficiencies ≥16–29%. Considering this fact, an experimental proof-of-concept QD-WLED was demonstrated, which is the first account of QD based color conversion custom designed for street lighting applications. The obtained white LED achieved the targeted mesopic luminance levels in accordance with the road lighting standards of the USA and the UK. These results indicate that road-lighting QD-WLEDs are strongly promising for energy-saving quality road lighting.

scholarly journals Measures to Improve the Energy Efficiency of Street Lighting Systems in the Kharkiv City

2021 ◽  
Vol 60 (2) ◽  
pp. 39-46
Author(s):  
Olena Didenko ◽  
Krystyna Suvorova ◽  
Olena Liashenko ◽  
Maria Sukhonos ◽  
Maria Liubchenko
Keyword(s):  
Energy Efficiency ◽  
High Pressure ◽  
Energy Saving ◽  
Light Sources ◽  
Lighting System ◽  
Monitoring And Control ◽  
Investment Activity ◽  
Street Lighting ◽  
Improve Energy Efficiency ◽  
The Road

High-quality street lighting improves visual perception of the road and provides for a significant decrease in the number of road accidents. It has been established that the total number of accidents can be reduced by 30% for national roads and by 45% for especially hazard areas (e.g., at intersections). Doubling of the average luminance of the road surface significantly reduces the number of accidents in the dark and twilight. Sufficient street lighting contributes to: reducing electricity consumption; decreasing operating costs; improving the environmental situation; promoting business, tourism and investment activity; decreasing the number of criminal offenses. The analysis of recent research and publications helped choose the best European practices which can be used to improve the outdoor lighting in Ukraine. The street lighting network is continuously growing and being modernized. Different types of light sources are being used in the network to illuminate the city. Today, high-pressure lamps (HPS) are leading. They are increasingly replaced by LED light sources. Not a small share is accounted for by metal-halide lamps. The smallest number of light sources in the street lighting system, high-pressure mercury and compact fluorescent lamps (CFLs). To increase the efficiency of the street lighting system and reduce energy consumption for its operation, measures for its reconstruction and modernization are required. For this purpose, it is necessary to address the following problems: high level of obsolescence and physical wear and tear of system elements; inefficient use and high losses of electricity at the stages of transportation and consumption, due to the use of obsolete and worn-out equipment; suboptimal distribution of the utility capacity, which leads to ineffective use of the existing lighting system; low efficiency of the street lighting control system, due to the lack of electric meters and remote monitoring and control of the street lighting. Introduction of energy-saving types of light sources is one of the ways to modernize the existing street lighting system. It is necessary to replace old lighting fixtures, which have already exhausted their life span, by new energy-saving light sources (replace CFLs by LEDs), use automatic control systems. All this in turn will help reduce energy costs by 60%. To improve energy efficiency of the street lighting system, it is also recommended to carryout the replacement of electromagnetic ballasts by electronic ones. The employment of electronic ballasts, e.g., in case of using HPS 250 lamps, allows to save approximately 255 kWh/year. Considering that the price per kW of electric energy is UAH 2.68, one luminaire helps save the amount of UAH 683.4 per year.

scholarly journals Divided Wall Column Modeling and Simulation in an Open-Source Environment

2020 ◽  
Vol 34 (3) ◽  
pp. 149-167
Author(s):  
João Paulo Henrique ◽  
Ruy de Sousa Jr. ◽  
Argimiro Resende Secchi ◽  
Mauro Antonio da Silva Sá Ravagnani ◽  
Abdessamad Barbara ◽  
...  
Keyword(s):  
Modeling And Simulation ◽  
Open Source ◽  
Chemical Process ◽  
Energy Savings ◽  
Vapor Flow ◽  
Flow Rates ◽  
Distillation Columns ◽  
Simulation And Optimization ◽  
Modeling Simulation ◽  
Divided Wall Column

The divided wall column (DWC) can achieve sharp separations of three or more components in a single shell, substituting conventional sequences of two or more binary<br /> distillation columns, with lower expenses. Despite these advantages, DWC models are not available in commercial chemical process simulators. To simulate DWC, users must employ instances of conventional column model and couple them in different configurations. In this paper, a DWC model was developed in EMSO (Environment for Modeling, Simulation and Optimization). DWC model was then used for simulating the separation of an equimolar mixture of three hydrocarbons. Results show that, depending on the number of trays, DWC presented energy savings compared to two ordinary distillation columns. Better separation was obtained when the number of divided trays was close to half the number of total trays. However, the liquid and vapor flow rates split into the divided section play a key role in the separation.

Determination of the road luminance class using alternative measuring tools

2018 ◽  
Vol 121 ◽  
pp. 105-113
Author(s):  
Piotr Jaskowski ◽  
Piotr Tomczuk
Keyword(s):  
Traffic Safety ◽  
Lighting Condition ◽  
Street Lighting ◽  
The Road ◽  
Road Lighting ◽  
Key Factor ◽  
Normative Requirements ◽  
High Standards

Control of road lighting condition is a key factor in maintaining high standards of lighting and traffic safety for both drivers and pedestrians. Currently, street lighting measurements are taking place mainly at the reception of newly designed installations. It is also necessary to control the lighting status of already operating installations in order to maintain the assumed lighting parameters and carry out their possible maintenance. The article presents the method of measuring luminance using a point and matrix meter in the context of normative requirements.

scholarly journals Modeling and Simulation of a Smart Street Lighting System

2019 ◽  
Author(s):  
Paulo Gabriel Teixeira ◽  
Bruno Gabriel Araújo Lebtag ◽  
Luma Wanderley de Oliveira ◽  
Sérgio Teixeira de Carvalho ◽  
Ernesto Fonseca Veiga ◽  
...  
Keyword(s):  
Modeling And Simulation ◽  
Smart Cities ◽  
Unified Modeling Language ◽  
Life Quality ◽  
Modeling Language ◽  
World Population ◽  
Lighting System ◽  
Street Lighting ◽  
Design Time ◽  
And Behavior

Smart cities comprise highly dynamic, complex and softwareintensive systems planned and created to cope with problems inherent to the increasing world population, such as need for life quality in cities, intense traffic, and sustainability. Owing to such complexity and dynamics, static notations, such as Unified Modeling Language (UML) and Systems Modeling Language (SysML), are often unable to support a precise conception, planning and design of those smart cities. In turn, the combination of traditional modeling and simulation (M&S) could leverage the design of such systems by enabling the analysis of both structure and behavior aspects still at design-time. The main contribution of this paper is offering evidence to support the premise of M&S be a promising paradigm for software engineering, including in smart cities domain. We report findings on a study carried out for assessing, via M&S, two architectures for a Public Street Lighting System (PSLS) of a smart city. The first architecture uses a hub as intermediator between luminaries and PSLS. The second architecture uses software-intensive luminaries connected to the PSLS using publish/subscribe architectural style. Preliminary results show that the publish/subscribe architecture delivers a greater degree of correctness than the former. Additionally, we conjecture that the adoption of M&S can foster the identification of smart cities behaviors and the identification of, at design-time, properties that could be noticed only after the system has been already deployed.

scholarly journals ANALISIS PENERAPAN WITHHOLDING TAX SYSTEM TERHADAP PAJAK PENERANGAN JALAN DI KAB. MINAHASA UTARA PADA PT. PLN (PERSERO) WILAYAH SULUTTENGGO

2018 ◽  
Vol 13 (04) ◽  
Author(s):  
Sendi Tanod ◽  
David Saerang ◽  
Winston Pontoh
Keyword(s):  
Descriptive Analysis ◽  
Analysis Method ◽  
Due Date ◽  
Tax System ◽  
Street Lighting ◽  
The Road ◽  
Road Lighting ◽  
Electricity Bill ◽  
Withholding Tax ◽  
The Law

Street lighting tax is territorial tax which is paid by the tax payer as electricity supplier, street lighting tax is collected at the same times with electricity bill payment by PLN customers. The purpose of this research is to analyze the application of withholding tax system in terms of cutting, deposit and reporting of Street Lighting Tax by PT. PLN (Persero) Area Suluttenggo. This research uses descriptive analysis method, which is done by interview and documentation. The results of the study show the Road Lighting Tax in the District North Minahasa by PT. PLN (Persero) Area Suluttenggo Region has been in accordance with the Law No.28 of 2009 and regent of the District north Minahasa No.34 of 2016. For liquefaction road tax refund shall be remitted to the regional treasury through a bank Sulut and in a few months in 2016 there shall be a delay in depositing which is not in accordance with the due date of the fifteenth of the ensuing month, in the case of reporting of PT. PLN (Persero) Area Suluttenggo Region has included Local Tax Payer (SSPD) for each month.Keywords: tax holding system, street lightning tax

Introduction To The New Energy Efficient Class for Road Lighting In Indian Context

2021 ◽  
pp. 135-145
Author(s):  
Suddhasatwa Chakraborty ◽  
Saswati Mazumdar
Keyword(s):  
Energy Efficient ◽  
Lighting Design ◽  
Density Parameter ◽  
Lighting System ◽  
New Classification ◽  
The Road ◽  
Road Lighting ◽  
New Energy ◽  
On The Road ◽  
Indian Scenario

The assessment of energy consumption in the field of road lighting is different from other lighting applications. In this paper, a newly developed parameter is introduced for the proper assessment of energy efficiency for lighting design of Indian road. The basis of the proposed normalized power density parameter and the effects of few governing factors on it have been also discussed in detail. Those factors are governing measured and calculated based on the road lighting in Indian scenario. A new classification for energy efficient road lighting in Indian road has been introduced. This new proposed classification will help to determine whether a road lighting system is energy efficient or not.

scholarly journals Perancangan Dan Penataan Penerangan Jalan Umum Dengan Aplikasi Dialux evo 8.2 Di Jalan Depok Cilodong

2020 ◽  
Vol 12 (2) ◽  
pp. 111-120
Author(s):  
JUARA MANGAPUL TAMBUNAN ◽  
Albert Gifson Hutajulu ◽  
Hendrianto Husada
Keyword(s):  
Road Construction ◽  
Road User ◽  
Long Distance ◽  
Street Lighting ◽  
The Road ◽  
Road Lighting ◽  
Material Procurement ◽  
On The Road ◽  
New Research ◽  
The Impact

The increase in population, urban development and road construction are the demands of many communities in obtaining public street lighting for road users by providing better services. Public street lighting has become a necessity for many people, which is very important for two-wheeled, four-wheeled, and many-wheeled drivers for safety and comfort in traffic, especially at night. Therefore, the authors conducted a new research design by arranging public street lighting in the area of ​​the Depok Cilodong highway, with the aim of providing the beauty of the road environment by the model of the arrangement and installation of poles, pole height and PJU lamp models to the road body. Its uniqueness is seen from the perspective of the side of social and environmental impacts that are generally not seen by the local government and the level of evenness of road lighting on road materials is still lacking, so that the impact on the road user community is better and more modern. The method used with the Dialux EVO 8.2 Program for short road lengths can choose street lights taken from the IES Lighting data on the 10W Eco Led, 10 VAC Milky Way, which is installed with a height of 8 meters with a distance between poles 15 meters with a large amount of procurement allows for high costs. For the long distance of the road, you can use the 20W Led Bimasakti Eco street light, 10 VAC, which is installed with a height of 8 meters and 20 meters between the poles. So by analyzing the selection criteria, it is capable of producing street lighting with lighting levels in accordance with SNI 7391-2008 and considering the quantity of material procurement as well as the tipping point which has an impact on financing for installation services.      

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