Journal articles: 'Energy and lighting analysis'

1

Sung, Po Hsun, Jyh Dong Lin, Ruei Hung Shiu, Chung Yuan Chen, Chen Yu Lin, and Ming Da Lin. "Energy Saving Benefit Analysis of Green Construction Using Energy-Efficient Lighting Equipment." Applied Mechanics and Materials 178-181 (May 2012): 24–28. http://dx.doi.org/10.4028/www.scientific.net/amm.178-181.24.

Full text

Abstract:

It's an important topic that how to improve the illumination but decreasing or no increasing the electricity loads. The energy-efficient lighting equipment in the study was T5 lighting fixture combining with High-efficiency Reflector and Low-loss Diffuser Plate. The High-Efficiency Reflector could reflex the luminous energy above 97%. The illuminance could be improved largely through using the High-Efficiency Reflector without additional power. The High-Efficient Equipment illuminated the environment with low glare by the lights through the plate. Saving electricity was 47.5% and the measured illumination was increased more than 2 times in case one. The saving electricity was 30% and the measured illumination was increased about 1.5~2 times in case two. The specific benefits using energy-efficient lighting equipment were saving energy and enhance illumination. Cost of the investment achieved balance about 9.5~13.3 months. The additional value was a lighting environment with uniformity and low-glare. The energy-efficient lighting equipment could be an option of green construction.

APA, Harvard, Vancouver, ISO, and other styles

2

Zang, Li Lin, Shuo Li, and Da Jun Tian. "Energy Saving Analysis of Solar-Powered LED Street Lighting Systems." Advanced Materials Research 490-495 (March 2012): 2254–58. http://dx.doi.org/10.4028/www.scientific.net/amr.490-495.2254.

Full text

Abstract:

The light emitting diode (LED) street lighting systems based on solar photovoltaic technology have been used for some time. In this paper, we present an analysis aiming at assessing the feasibility and economic performance of a solar-powered street lighting system for a 1km road. The present study introduces the architecture of a classical solar-powered LED street lighting system and estimates the total investment cost for a 1 km highway with 2 lanes. The cost comparison of solar-powered LED lighting and sodium lamps using grid was carried out. The calculations show that the energy saving effect of solar-powered LED lighting systems is obvious but the initial investment of solar-powered LED systems is more than sodium lighting systems using grid. The investment cycle is about 2.2 years under the current conditions.

APA, Harvard, Vancouver, ISO, and other styles

3

Jiang, Jia Li, Xiao Yang He, Yun Cui Zhang, Yuan Fang, Wei Hao Xiao, Nian Yu Zou, An Okhee, Masako Miyamoto, Youko Inoue, and Michiko Kunishima. "Investigation and Analysis on Energy-Saving Status in Building Lighting in China, Japan and Korea." Applied Mechanics and Materials 548-549 (April 2014): 567–70. http://dx.doi.org/10.4028/www.scientific.net/amm.548-549.567.

Full text

Abstract:

As global energy crisis is growing, energy-saving in architecture becomes more and more important. In addition, residential lighting especially living room lighting is an important part of energy consumption. In order to create green building, this paper analyzes energy-saving status based on joint investigations across China, Japan and Korea. It has been also compared the differences about energy-saving awareness and the selections of lighting equipments. The investigation results about residential lighting energy situation are reference to make proposals on lighting energy efficiency and quality improvement.

APA, Harvard, Vancouver, ISO, and other styles

4

Pan, Guo Bing, Ling Na Shi, Bo Liang, and Yu Hang Pi. "Illumination Energy Conservation Analysis of Reflective Material on the Tunnel Sidewall." Advanced Materials Research 594-597 (November 2012): 1197–200. http://dx.doi.org/10.4028/www.scientific.net/amr.594-597.1197.

Full text

Abstract:

This paper endeavors to analyze road lighting quality with the influence of luminous coefficients of the tunnel wall, with lighting design software DIALUX which simulates tunnel lighting, by improving the reflection coefficient of the tunnel wall materials. The result of Analysis shows that high-tunnel side wall reflection coefficient not only helps to improve the tunnel intensity of illumination, but also improves the luminance of the tunnel; under certain circumstances of the road surface luminance, high reflective coefficient of the tunnel walls is helpful to tunnel lighting energy consumption reduction.

APA, Harvard, Vancouver, ISO, and other styles

5

Du, Fang, Yong Li, and Feng Wu. "Analysis on Energy-saving Lighting Design of the Underground Construction." World Construction 1, no. 1 (March 25, 2012): 1. http://dx.doi.org/10.18686/wc.v1i1.25.

Full text

Abstract:

There are often no windows and lack of natural light in the most of underground space, so lighting design is the most basic for most underground architectural design. Natural lighting is not only for comfortable indoor energy-saving and healthy light environment, but also for the good indoor environment. We need to use natural light and artificial lighting conduction system to offset the lack of natural light and improve the effect of underground space of natural light.

APA, Harvard, Vancouver, ISO, and other styles

6

Du, Fang, Yong Li, and Feng Wu. "Analysis on Energy-saving Lighting Design of the Underground Construction." World Construction 1 (March 25, 2012): 1. http://dx.doi.org/10.18686/wcj.v1i1.1.

Full text

Abstract:

There are often no windows and lack of natural light in the most of underground space, so lighting design is the most basic for most underground architectural design. Natural lighting is not only for comfortable indoor energy-saving and healthy light environment, but also for the good indoor environment. We need to use natural light and artificial lighting conduction system to offset the lack of natural light and improve the effect of underground space of natural light.

APA, Harvard, Vancouver, ISO, and other styles

7

Thuy, Hang Le Thi, and Dong Ngo Nguyen. "Feasibility Analysis of the Power Supply Model Using Solar PV for the Public Lighting System in Hanoi." Journal of Asian Energy Studies 5, no. 1 (June 4, 2021): 14–21. http://dx.doi.org/10.24112/jaes.050002.

Full text

Abstract:

Public lighting is an essential service in today’s cities, towns, and highways, including improving public safety and reducing traffic accidents. Public lighting could consume up to 40% of the energy budget of the local governments. Therefore, the technical innovations related to public lighting always bring significant value to municipal governments. In Vietnam, the public lighting in big cities account for 25% of the total power consumption. The solutions to reducing electricity consumption for public lighting are also of interest to domestic and foreign organizations, including the use of on-site energy such as wind and solar energy. In this paper, on the basis of the current state of the public lighting system and the potential of solar energy in Hanoi, the authors have roughly calculated the technical and economic efficiency of power supply solutions using solar energy in public lighting. The proposal of solving the power supply problem, by using solar energy in public lighting in Hanoi is another result of the paper.

APA, Harvard, Vancouver, ISO, and other styles

8

Uba, Felix, Holali Kwami Apevienyeku, Freda Dapaa Nsiah, Alex Akorli, and Stephen Adjignon. "Energy Analysis of Commercial Buildings Using Artificial Neural Network." Modelling and Simulation in Engineering 2021 (March 11, 2021): 1–10. http://dx.doi.org/10.1155/2021/8897443.

Full text

Abstract:

Energy consumption in buildings especially in offices is alarming and prompts the desire for more energy analysis work to be done in testing models that can estimate the energy situation of commercial buildings, and the key contributing factors are based on human factors, work load, and weather variables like solar radiation and temperature. In the research, the administration block of the University of Energy and Natural Resources, Ghana, was selected and modeled for energy analysis using SketchUp. Daily energy consumption of the building was generated with EnergyPlus indicating the electricity consumption of the block for the year 2018 for which 68.7% was used by equipment in the block, 26.98% on cooling, and the rest on lighting. The Artificial Neural Network model which had weather variable and days as input neurons and cooling, lighting, equipment, and total building electricity consumption as output neurons was modeled in MATLAB. The model after training had R values for training, validation, and testing to be 0.999 and validation performance of 1.7 ∗ 10 − 04 . It was able to predict the energy consumption for lighting, cooling, and equipment very close to the results with minimal. The results from the ANN model prediction were compared with the EnergyPlus simulations. The maximum deviation profile for the following parameters (lighting, cooling, and equipment) is 13%, 8%, and 4%, respectively. The large difference in the lighting and cooling is the difficulty involved in predicting human behaviour and weather conditions. The least value recorded for the equipment is due to its independence on external factors.

APA, Harvard, Vancouver, ISO, and other styles

9

Kamaruddin, Mohd Athir, Yanuar Z. Arief, and Mohd Hafizi Ahmad. "Energy Analysis of Efficient Lighting System Design for Lecturing Room Using DIAlux Evo 3." Applied Mechanics and Materials 818 (January 2016): 174–78. http://dx.doi.org/10.4028/www.scientific.net/amm.818.174.

Full text

Abstract:

Rate of electricity consumption is increasing due to the increasing demand every year, while the supply of natural resources is significantly reduced. This is a factor why electricity tariffs are increased and it would affect the improvement of living standards. The lighting system is one of the important elements of the building design. Effective and efficient strategy of lighting, includes natural daylighting, appropriate level of illumination, and low energy consumption. A significant cost saving can be achieved if the designers know how to design a lighting system effectively and efficiently. Therefore, the appropriate design of lighting system which meet the standard was proposed in this project. The objective of this research is to perform energy analysis of lighting system design for lecture room. The lecture room at UTM SPACE building in Kuala Lumpur was taken as a case study. Type of lighting used, existing room design, and lighting technology in the market are identified prior to the beginning of the present study. After that, the system design is implemented using the manual calculation based on lumen method and the simulation is done using DIAlux Evo 3 and AutoCAD. Two type of lighting products are compared in terms of energy consumption and cost: the compact fluorescent lamp (CFL) and the light emitting diode (LED). Then, comparison of results was performed to obtain the best lighting system. The results revealed that LED provides energy cost savings of 30% to 50% annually compared to CFL. The prediction from DIAlux Evo 3 simulation is more accurate compared to the manual calculation.

APA, Harvard, Vancouver, ISO, and other styles

10

Li, Xiao Lei, Huan Li, and Jian Ping Gao. "Impact Analysis to Building Energy Consumption of Daylighting Combined Lighting Control." Applied Mechanics and Materials 260-261 (December 2012): 202–8. http://dx.doi.org/10.4028/www.scientific.net/amm.260-261.202.

Full text

Abstract:

A study on the building energy consumption analysis of daylighting-based lighting control strategy was carried out. A circle type of building was mainly simulated by using the eQUEST energy simulating software. By setting various window-wall ratios, we try to find the relationship between the energy saved by daylighting-based lighting control and the other main energy consumptions, such as the cooling and heating energies. The data shows that the energy saving potential of daylighting-based lighting control strategy can be 40% under the proper window-wall ratio, and in the meanwhile, the total energy saving of the whole building can be 8%. A formula is given to get the best window-wall ratio of various cities according to its geographical information and local climate factors.

APA, Harvard, Vancouver, ISO, and other styles

11

Rakutko, S. A., and E. N. Rakutko. "Simulation and Numerical Analysis of Energy-and-Ecological Compatibility of Indoor Plant Lighting." Agricultural Machinery and Technologies 13, no. 3 (July 22, 2019): 11–17. http://dx.doi.org/10.22314/20737599-2019-13-3-11-17.

Full text

Abstract:

To develop the theory and practice of operation procedures in a greenhouse, a mathematical model of indoor plant lighting is required. (Research purpose) Development of a simulation and analysis technique of energy-and-ecological compatibility of indoor plant lighting. (Materials and methods) The authors experimentally verifi ed the proposed technique for the indoor plant lighting of tomato seedlings grown under laboratory conditions with controlled environmental parameters. An irradiator consisting of a LED matrix with secondary optics and a driver was used. The photoperiod amounted to 16 hours. The experiment was completed for 46 days. The technique includes an analysis of the energy conversion effi ciency at various stages in the blocks of the artifi cial bioenergy system of indoor plant lighting (ABES): a source of electrical power; a radiation source; an optical part; spatial fl ow distribution; surface fl ow distribution; and a plant. The authors proposed formulas for calculating the energy consumption of each ABES unit. It was revealed that for the estimated values of the energy consumption of ABES blocks taken according to expert estimates, the total energy consumption accounts for 0.32-2.27 megajoule per one gramme of wet weight of a plant, i.e. diff ers by almost an order of magnitude, depending on the specifi c implementation of the lighting technology. It is shown that optimization cannot be limited by consistent selection of an option with the lowest value of energy consumption at each stage, but requires fi nding the optimal route on the graph of options. (Results and discussion) For the experimental conditions, the total energy consumption of ABES was 3.77 megajoule per one gramme of the wet weight of a plant. The low effi ciency was caused by the unsatisfactory effi ciency of the LED matrix and the low productivity of the plant photosynthesis. (Conclusions) The developed technique for modeling and analyzing the energy-and-ecological compatibility of indoor plant lighting allowed assessing possible energy saving at each stage of energy and substance conversion in indoor plant lighting. Theoretically, possible reduction of losses in the source of electrical power is 22 percent, in the optical part – 14 percent; in spatial fl ow distribution – 16 percent; in surface fl ow distribution – 10 percent. Possible increasing of the lighting source effi ciency depends on the achieved level of technology, which currently provides an output of 2.5 micromole per joule and more. To increase the productivity of indoor plant lighting, it is necessary to precisely match the parameters of the lighting mode and the requirements of plants.

APA, Harvard, Vancouver, ISO, and other styles

12

Bambara, James, and Andreas K. Athienitis. "Energy and Economic Analysis for Greenhouse Envelope Design." Transactions of the ASABE 61, no. 6 (2018): 1795–810. http://dx.doi.org/10.13031/trans.13025.

Full text

Abstract:

Abstract. The energy consumption of a building is significantly impacted by its envelope design, particularly for greenhouses where coverings typically provide high heat and daylight transmission. Energy and life cycle cost (LCC) analysis were used to identify the most cost-effective cladding design for a greenhouse located in Ottawa, Ontario, Canada (45.4° N) that employs supplemental lighting. The base case envelope design uses single glazing, whereas the two alternative designs consist of replacing the glass with twin-wall polycarbonate and adding foil-faced rigid insulation (permanent or movable) on the interior surface of the glass. All the alternative envelope designs increased electricity consumption for lighting and decreased heating energy use except when permanent or movable insulation was applied to the north wall and in the case of permanent insulation on the north wall plus polycarbonate on the east wall. This demonstrates how the use of reflective opaque insulation on the north wall can be beneficial for redirecting light onto the crops to achieve simultaneous reductions in electricity and heating energy costs. A maximum reduction in LCC of 5.5% (net savings of approximately $130,000) was achieved when permanent insulation was applied to the north and east walls plus polycarbonate on the west wall. This alternative envelope design increased electricity consumption for horticultural lighting by 4.3%, reduced heating energy use by 15.6%, and caused greenhouse gas emissions related to energy consumption to decrease by 14.7%. This analysis demonstrates how energy and economic analysis can be employed to determine the most suitable envelope design based on local climate and economic conditions. Keywords: Artificial lighting, Consistent daily light integral, Energy modeling, Envelope design, Greenhouse, Life cycle cost analysis, Light emitting diode, Local agriculture.

APA, Harvard, Vancouver, ISO, and other styles

13

Abdul Wahab, M. S., and N. A. Ramli. "Lighting Control System for Energy Management System and Energy Efficiency Analysis." Journal of Physics: Conference Series 1529 (May 2020): 052022. http://dx.doi.org/10.1088/1742-6596/1529/5/052022.

Full text

APA, Harvard, Vancouver, ISO, and other styles

14

Pal, R. C., S. N. Srinivas, I. H. Rehman, and S. P. Sharma. "Kerosene for lighting applications: a comparative analysis of energy-efficient lighting devices in India." International Journal of Ambient Energy 25, no. 2 (April 2004): 107–12. http://dx.doi.org/10.1080/01430750.2004.9674947.

Full text

APA, Harvard, Vancouver, ISO, and other styles

15

Kaminska, Aniela, and Andrzej Ożadowicz. "Lighting Control Including Daylight and Energy Efficiency Improvements Analysis." Energies 11, no. 8 (August 19, 2018): 2166. http://dx.doi.org/10.3390/en11082166.

Full text

Abstract:

Energy used for lighting is one of the major components of total energy consumption in buildings. Nowadays, buildings have a great potential to reduce their energy consumption, but to achieve this purpose additional efforts are indispensable. In this study, the need for energy savings evaluation before the implementation of lighting control algorithms for a specified building is highlighted. Therefore, experimental tests have been carried out in a university building with laboratories and other rooms, equipped with KNX building automation system. A dimmable control strategy has been investigated, dependent on daylight illuminance. Moreover, a relationship between external and internal daylight illuminance levels has been evaluated as well. Based on the experimental results, the authors proposed a method for the rough estimation of electrical energy savings. Since, according to the EN 15232 standard, Building Automation and Control Systems (BACS) play an important role in buildings’ energy efficiency improvements, the BACS efficiency factors from this standard have been used to verify the experimental results presented in the paper. The potential to reduce energy consumption from lighting in non-residential buildings by 28% for offices and 24% for educational buildings has been confirmed, but its dependence on specific building parameters has been discussed as well.

APA, Harvard, Vancouver, ISO, and other styles

16

Wang, Kan, Li Lei, Shuai Qiu, and Sen Guo. "Policy Performance of Green Lighting Industry in China: A DID Analysis from the Perspective of Energy Conservation and Emission Reduction." Energies 13, no. 22 (November 10, 2020): 5855. http://dx.doi.org/10.3390/en13225855.

Full text

Abstract:

As a component of China’s strategic emerging industries, green lighting is an important industry supporting the high-quality and high-efficiency development of China’s economy, and is also an important way to achieve energy conservation and emission reduction. At present, China has basically established a policy framework to promote the development of green lighting industry, but there is no empirical evidence on the performance of existing policies on energy conservation and emission reduction. Based on the development status of China’s green lighting industry, this paper sorts out the milestones of China’s green lighting industry policy and the current status of the framework of the existing green lighting industry development policies, constructs a policy performance evaluation model for China’s green lighting industry based on the difference-in-difference (DID) model, and evaluates the implementation effects of green lighting industry policies in China from the perspective of energy conservation and emission reduction. The empirical results of China’s 85 cities show that the implementation of green lighting industry policies has significantly promoted regional energy conservation and emission reduction. Finally, this paper puts forward targeted policy recommendations to provide policy support for the transformation of China’s green lighting industry from “large” to “strong”.

APA, Harvard, Vancouver, ISO, and other styles

17

Yu, Ya Kun, Fang Ming Ruan, and Yan Jun You. "Analysis and Application of Power Balance in Self-Powered Sensor." Advanced Materials Research 1008-1009 (August 2014): 567–70. http://dx.doi.org/10.4028/www.scientific.net/amr.1008-1009.567.

Full text

Abstract:

wireless sensor network (WSN) nodes based on self-powered function have distinct advantages of battery free and no needing line power, used successfully in lighting control system of modern building. Energy balance and power balance are considered in design of battery-free sensor module. Average current in self-powered wireless sensor module was evaluated based on viewpoint of power balance. Energy balance was discussed in building lighting control system based on special energy storage of super-capacitor. Self-powered wireless sensor module is based on energy harvesting from ambient circumstance. In lighting control system of modern building automation battery-free sensor module has been successfully applied for maintenance and energy saving. The application of battery-free sensor module was analyzed.

APA, Harvard, Vancouver, ISO, and other styles

18

Liu, Meng, Zi Qiao Li, Li Yang Ruan, Run Mu Yang, and Jun Ya Wu. "Analysis on Light Environment and Efficient Creation in College Student Dormitory of Chongqing." Applied Mechanics and Materials 587-589 (July 2014): 276–82. http://dx.doi.org/10.4028/www.scientific.net/amm.587-589.276.

Full text

Abstract:

This paper aims to probe into the feasibility and applying strategy of the energy-efficiency optimization of college dormitory lighting system in Chongqing. It takes a college dormitory located in chongqing as an instance, through questionnaire and field investigation, the conclusion indicated that the indoor illumination during the daytime cannot meet the relevant national standards. And over 80 percent of the students are unsatisfied with the indoor lighting. The research on the optimization program of Photoconductive lighting system and energy efficiency lamp system demonstrate these two programs can save 5.7 tons of standard coal per year and 1.67 respectively. Then model the photoconductive lighting system. Finally it takes the Photoconductive lighting system and energy efficiency lighting systems promoted and compared in college dormitory of Chongqing to draw a conclusion that the annual savings of the system are approximately 21.8-22.4 million kwh electricity which equals to 8.72-8.94 one thousand tons of standard coal. This quantity is equivalent to a half of the electricity consumption of Chongqing Dadukou 2012 January-April.

APA, Harvard, Vancouver, ISO, and other styles

19

Rupnar, Mrs Vandana. "Analysis of Energy Efficient Street Lighting System Using ML." International Journal for Research in Applied Science and Engineering Technology 7, no. 5 (May 31, 2019): 3160–66. http://dx.doi.org/10.22214/ijraset.2019.5522.

Full text

APA, Harvard, Vancouver, ISO, and other styles

20

Leijting, Jorrit. "Comparative Analysis of LED Commercial Lighting Systems." Key Engineering Materials 572 (September 2013): 54–57. http://dx.doi.org/10.4028/www.scientific.net/kem.572.54.

Full text

Abstract:

This study compares seven different LED commercial lighting systems using Life Cycle Assessment methodology. The environmental impact of seven LED systems was assessed in a baseline study in 2010 and monitored in 2012. The next monitoring phases are planned in 2013, 2014 and 2015. The ReCiPe endpoint method was applied to calculate the environmental impact. The results of the baseline study show that the main environmental impacts of LED lighting systems are a result of the use phase. The differences between the seven systems were mainly due to energy consumption, energy efficiency and the level of produced light (luminance).The on-going environmental performance of the different LED lighting systems was monitored based on these Key Environmental Performance Indicators (KEPIs). The first evaluation took place in 2012. The results show that compared with the baseline study, the environmental impact has increased for six out of the seven LED lighting systems mainly as a result of a decrease in luminance.

APA, Harvard, Vancouver, ISO, and other styles

21

Vishwas, Moheet, and Prashant Kumar Soori. "Simple Tool for Energy Analysis of Day Lighting and Artificial Lighting for a Typical Office Building Lighting System Design." International Journal of Energy Engineering 2, no. 6 (December 1, 2012): 332–38. http://dx.doi.org/10.5923/j.ijee.20120206.07.

Full text

APA, Harvard, Vancouver, ISO, and other styles

22

Shang, Fumin, Chaoyue Liu, Yang Wang, Kangzhe Yang, and Jianhong Liu. "Experimental analysis on heat transfer performance of LED lighting radiator." E3S Web of Conferences 248 (2021): 01058. http://dx.doi.org/10.1051/e3sconf/202124801058.

Full text

Abstract:

At present, LED lighting is gradually replacing the traditional lighting and becoming the fourth generation of light source. In the process of LED lighting, a large part of electric energy is converted into heat energy. If it can not dissipate heat in time, the device efficiency will be reduced or even damaged. Therefore, the heat dissipation problem of LED needs to be solved. By testing and recording the working temperature of the existing LED lighting radiator in different positions, the performance of the radiator was compared and tested. The experiment shows that the radiator works best when the light source is downward, and the temperature difference between the top and the bottom of the radiator is the smallest in this case, and the temperature at the top of the radiator is higher than that at the bottom in the working process. When the position of the LED lighting radiator changes, the heat dissipation performance of the top and bottom of the radiator changes.

APA, Harvard, Vancouver, ISO, and other styles

23

Sutopo, Wahyudi, Ika Shinta Mardikaningsih, Roni Zakaria, and Ahad Ali. "A Model to Improve the Implementation Standards of Street Lighting Based on Solar Energy: A Case Study." Energies 13, no. 3 (February 3, 2020): 630. http://dx.doi.org/10.3390/en13030630.

Full text

Abstract:

This paper aims to improve the implementation standards of solar-energy-based street lighting in Indonesia. A model framework was developed to assess existing conditions regarding the level of lux, the distance between poles, pole height, and lamp power. According to the evaluation of the existing circumstances, the street lighting system is not satisfactory according to the national standard, with 64.7% black area. An alternative installation of street lighting designed by DIALux application was proposed to fulfill the technical standard of street lighting. The result shows that this alternative design can be used for renewing existing street lighting with better performance and reliability. Economic analysis of all technically feasible alternatives was conducted afterward by benefit–cost analysis. The analysis shows that solar-energy-based street lighting requires as much as 621,473,620.00 Indonesian Rupiah (IDR), with 1.06 benefit–cost ratios and a 9% reduction of total cost. Therefore, the analysis indicates that solar-energy-based technology can be feasibly implemented in a street lighting system. The results show that the proposed model can be applied to improve the implementation standard of solar-energy-based street lighting.

APA, Harvard, Vancouver, ISO, and other styles

24

KARATAY, Merve, and Tuğba İnan GÜNAYDIN. "BİNALARDA AYDINLATMA ENERJİ PERFORMANSININ YAPMA AYDINLATMA SİSTEMİ VE FARKLI İKLİM BÖLGELERİ ÜZERİNDEN ANALİZİ." Euroasia Journal of Mathematics, Engineering, Natural & Medical Sciences 8, no. 17 (September 25, 2021): 95–113. http://dx.doi.org/10.38065/euroasiaorg.623.

Full text

Abstract:

Mekanın görsel konfor koşullarının sağlanmasında ve enerji tüketiminin hesaplanmasında mimarinin önemli öğelerinden biri olan aydınlatma konusu bina enerji performansı sağlanmasında büyük bir rol oynamaktadır. Bu amaçla gün boyu kullanılması, kullanıcı sayısının fazla olması ve enerji tüketiminin yüksek olması nedeniyle çalışma alanı olarak bir ofis binası seçilmiştir. Çalışmada EN 15193 Binalarda Enerji Performansı – Aydınlatma Enerjisi Gereksinimleri standardı temel alınarak Türkiye için geliştirilmiş olan BEP-TR metodolojisi kısaca tanıtılmıştır. Çalışmada öncelikle seçilen örnek ofise ait kat planı üzerinden yapma aydınlatmalar konumlandırılarak Dialüx programında halojen yapma aydınlatma ve Led yapma aydınlatmalarının enerji tüketim ve görsel konfor koşulları analiz edilerek çıkan sonuçlar tartışılmıştır. Sonrasında, seçilen ofis binası üzerinden farklı iklim bölgelerinden şehirler belirlenerek aydınlatma enerjisi performans değerleri ve aydınlatma enerji sınıfı Bep – Tr hesap metodolojisi uyarınca hesaplanarak elde edilen sonuçlar tartışılmıştır.

APA, Harvard, Vancouver, ISO, and other styles

25

Han, Jin Soo, Youn Kwae Jeong, and Il Woo Lee. "Analysis of Electric Energy Consumption Patterns: A Case Study of a Real Life Office Building." Applied Mechanics and Materials 330 (June 2013): 158–62. http://dx.doi.org/10.4028/www.scientific.net/amm.330.158.

Full text

Abstract:

Electric energy consumption shares a great portion of commercial building energy. Electric energy saving is essential to reduce total energy consumption in commercial buildings. To draw energy saving methods, it is necessary to monitor real energy consumption patterns and analyze the results. We monitor the lighting and non-lighting energy consumption of eleven zones in a real working office building every fifteen minutes during eleven months. We observe and analyze the monthly and daily energy consumption patterns of all zones and draw several feasible energy saving methods. Moreover, the lighting and occupancy are monitored simultaneously in detail to investigate the unnecessary energy consumption. It shows the possibility of a great amount of energy saving. Because we analyze the energy consumption patterns in all zones, the drawn energy saving methods are applicable to the current building with some added infrastructure and expandable to other similar office buildings. Our result is expected to contribute to reducing the energy consumption in buildings.

APA, Harvard, Vancouver, ISO, and other styles

26

Ganandran, G. S. B., T. M. I. Mahlia, Hwai Chyuan Ong, B. Rismanchi, and W. T. Chong. "Cost-Benefit Analysis and Emission Reduction of Energy Efficient Lighting at the Universiti Tenaga Nasional." Scientific World Journal 2014 (2014): 1–11. http://dx.doi.org/10.1155/2014/745894.

Full text

Abstract:

This paper reports the result of an investigation on the potential energy saving of the lighting systems at selected buildings of the Universiti Tenaga Nasional. The scope of this project includes evaluation of the lighting system in the Library, Admin Building, College of Engineering, College of Information Technology, Apartments, and COE Food court of the university. The main objectives of this project are to design the proper retrofit scenario and to calculate the potential electricity saving, the payback period, and the potential environmental benefits. In this survey the policy for retrofitting the old lighting system with the new energy saving LEDs starts with 10% for the first year and continues constantly for 10 years until all the lighting systems have been replaced. The result of the life cycle analysis reveals that after four years, the selected buildings will bring profit for the investment.

APA, Harvard, Vancouver, ISO, and other styles

27

Ren, Jing, Xianghong Cao, and Jiaqi Li. "Indoor Constant Illumination Control Strategy Research Based on Natural Lighting Analysis." International Journal of Pattern Recognition and Artificial Intelligence 35, no. 10 (May 26, 2021): 2159037. http://dx.doi.org/10.1142/s0218001421590370.

Full text

Abstract:

Lighting energy consumption occupies a large proportion in the building electricity consumption. It cannot only save energy, but also reduce the uneven and constant illumination of the working face, which makes full use of the natural lighting and combines with the intelligent lighting control. An office building in Zhengzhou of China has been selected as an example for analyzing the climatic factors that influence building daylighting and the factors of the building itself, the illuminance of working faces in different sky models and at different times has been simulated and calculated to analyze the illuminance variation law in the direction of room depth and parallel direction of side Windows. Partition and point combined constant illumination control strategy for the lamps in different areas has been put forward and realized by BP neural network algorithm. By controlling the dimming of artificial light source and adjusting the curtain opening degree intelligently, uniform and constant illumination has been achieved. Energy saving effect in combination with natural lighting has been evaluated to prove that the control strategy cannot only maintain constant illumination in every working face but also significantly reduce the electric energy consumption and carbon dioxide emissions.

APA, Harvard, Vancouver, ISO, and other styles

28

Zhang, Li Guo, Zhou Liu, and Guo Jing He. "Analysis on Voltage and Reactive Power in Civil Lighting." Applied Mechanics and Materials 608-609 (October 2014): 937–43. http://dx.doi.org/10.4028/www.scientific.net/amm.608-609.937.

Full text

Abstract:

Street lamp has become the essential functional unit in society for its widely use , Street lamp power energy saving has become a very worth studying problem high demand. Aiming at such a demand, this paper proposed a kind of optimizational energy saving streetlight that based on the voltage and reactive power, this article put forward such a research mainly aims at the demand of Jinan street lamp management. The research improved the grid power factor, reduced the network pressure drop and reduces the energy consumption of street lamp. It upload the master station through GPRS network real-timely, And accept command such as mode conversion, parameter setting, time checking and capacitor switching. It implements the voltage optimization function, remote monitoring and control functions on the basis of ensuring road illumination and uniformity, Which realized street light energy-saving and reduced the loss of lines and transformers at the same time. And it protect lighting lamps effectively. Examples show that the study further improved the management level of Jinan street lamp, it realized the double harvest of electricity environment optimization and electrical energy saving, Which made a great contribution to energy-saving society construction.

APA, Harvard, Vancouver, ISO, and other styles

29

Ashryatov, A. A., V. G. Kulikov, and A. V. Panteleyev. "Energy saving control system development for external lighting." Indonesian Journal of Electrical Engineering and Computer Science 17, no. 3 (March 1, 2020): 1601. http://dx.doi.org/10.11591/ijeecs.v17.i3.pp1601-1606.

Full text

Abstract:

Currently, energy saving requires the development of simple and efficient street lighting control systems. In order to create such a control system, it is necessary to develop an original principle of its operation. They considered the advantages of electronic starting devices in street lighting control systems. They performed the analysis of the existing state of street lighting means, their shortcomings and solutions have been determined, and they developed the method of lighting device automatic control. They performed the assessment of the economic effect from loss reduction associated with reactive power and due to power reduction during deep night. They presented the example of economic effect achievement from the use of an electronic starting device with automatic power reduction.

APA, Harvard, Vancouver, ISO, and other styles

30

Liu, Shixiong. "Discussion of Building Electrical Lighting Energy-saving Design." World Construction 4, no. 2 (June 26, 2015): 4. http://dx.doi.org/10.18686/wc.v4i2.42.

Full text

Abstract:

This paper mainly for the construction of electrical energy-saving lighting design analysis, discussed the importance of building electrical lighting energy-saving design, and specifically describes how electrical energy-saving design, in order to provide reference for the construction of electrical energy-saving design.

APA, Harvard, Vancouver, ISO, and other styles

31

Liu, Shixiong. "Discussion of Building Electrical Lighting Energy-saving Design." World Construction 4, no. 2 (June 26, 2015): 4. http://dx.doi.org/10.18686/wcj.v4i2.2.

Full text

Abstract:

This paper mainly for the construction of electrical energy-saving lighting design analysis, discussed the importance of building electrical lighting energy-saving design, and specifically describes how electrical energy-saving design, in order to provide reference for the construction of electrical energy-saving design.

APA, Harvard, Vancouver, ISO, and other styles

32

Kotulski, Leszek, Artur Basiura, Igor Wojnicki, and Sebastian Siuchta. "Lighting System Modernization as a Source of Green Energy." Energies 14, no. 10 (May 12, 2021): 2771. http://dx.doi.org/10.3390/en14102771.

Full text

Abstract:

The use of formal methods and artificial intelligence has made it possible to automatically design outdoor lighting. Quick design for large cities, in a matter of hours instead of weeks, and analysis of various optimization criteria enables to save energy and tune profit stream from lighting retrofit. Since outdoor lighting is of a large scale, having luminaires on every street in urban areas, and since it needs to be retrofitted every 10 to 15 years, choosing proper parameters and light sources leads to significant energy savings. This paper presents the concept and calculations of Levelized Cost of Electricity for outdoor lighting retrofit. It is understood as cost of energy savings, it is in the range from 23.06 to 54.64 EUR/MWh, based on real-world cases. This makes street and road lighting modernization process the best green “energy source” if compared with the 2018 Fraunhofer Institute cost of electricity renewable energy technologies ranking. This indicates that investment in lighting retrofit is more economically and ecologically viable than investment in new renewable energy sources.

APA, Harvard, Vancouver, ISO, and other styles

33

Li, Danny H. W., K. L. Cheung, S. L. Wong, and Tony N. T. Lam. "An analysis of energy-efficient light fittings and lighting controls." Applied Energy 87, no. 2 (February 2010): 558–67. http://dx.doi.org/10.1016/j.apenergy.2009.07.002.

Full text

APA, Harvard, Vancouver, ISO, and other styles

34

Chiradeja, Pathomthat, Suntiti Yoomak, and Atthapol Ngaopitakkul. "Economic Analysis of Improving the Energy Efficiency of Nanogrid Solar Road Lighting Using Adaptive Lighting Control." IEEE Access 8 (2020): 202623–38. http://dx.doi.org/10.1109/access.2020.3035702.

Full text

APA, Harvard, Vancouver, ISO, and other styles

35

Pospelova, Irina G., Mariya A. Nabatchikova, and Ilshat I. Iksanov. "Development of Energy-Resource-Saving Lighting Installations for Agriculture." Elektrotekhnologii i elektrooborudovanie v APK, no. 3 (September 20, 2020): 95–102. http://dx.doi.org/10.22314/2658-4859-2020-67-3-95-102.

Full text

Abstract:

Reducing energy costs during the production of agro-industrial livestock production by maintaining the required lighting parameters is an urgent task. The largest consumption of electricity in farms is by electric lighting. The mass transition to energy-efficient equipment, using control systems in livestock and industrial premises of the agro-industrial complex, leads to increased energy savings and maintenance of optimal microclimate mode. (Research purpose) The research purpose is in developing energy-saving lighting installations, a program for automatic control of the lighting system and assessing the prospects for their use for enterprises of the agro-industrial complex. (Materials and methods) The article presents an overview of developments, scientifically based led lighting devices to maintain the required lighting parameters in livestock and industrial premises of the agro-industrial complex, in order to save electricity. Authors have determined that the technical effect of the proposed lighting installations is in reducing the electrical energy consumed. In one of them by creating a special shape of the light intensity curve, and in the second one by converting thermal energy into electrical energy used for additional power supply of the lamp. (Results and discussion) The article presents the results of research on the development of a program for automatic control of lighting systems for the implementation of energy-saving mode of operation. Authors consider the possibility of maintaining and regulating optimal illumination with the help of programmable controllers. (Conclusions) The analysis of the state and prospects of development of lighting systems showed the possibilities of development of scientifically based led lighting devices, as well as programs for regulating lighting in livestock premises based on programmable controllers. The use of the system will allow achieving optimal parameters of the microclimate, increasing productive and reproductive indicators, and effectively use optical radiation by reducing the consumption of electrical energy by up to 30 percent with the same quality of lighting.

APA, Harvard, Vancouver, ISO, and other styles

36

Pinto, German Alfonso Osma, Gabriel Ordóñez Plata, Laura Yazmin Amado Duarte, and Rodolfo Villamizar Mejía. "Control of a Hybrid Illumination System in a Tropical Zone." Applied Mechanics and Materials 704 (December 2014): 368–72. http://dx.doi.org/10.4028/www.scientific.net/amm.704.368.

Full text

Abstract:

This paper presents a control system approach for hybrid illumination of administrative offices (225m2) at an university building located at a tropical zone. The main goal was to minimize the energy consumption of artificial lightings (fluorescent), by taking advantage of the high natural lighting level during a workday (8 a.m. and 6 p.m.). The control system devices used for each office are: presence sensor, dimming photocell and dimming ballasts, all them connected to the Andover Infinet Controller. By means of data analysis and daylight curves, energy consumption and financial savings are determined. Subsequently, the average energy consumption per square meter due to the hybrid lighting in the offices (8.5 kWh/m2/year) and typical illumination of the central campus (27 kWh/m2/year) were compared. It was demonstrated that a reduction of energy consumption of about 70%, 50% by daylighting and 20% by automation was obtained.

APA, Harvard, Vancouver, ISO, and other styles

37

Байнева, I. Bayneva, Байнев, and V. Baynev. "Russia’s Lighting Engineering Products: Energy Saving and Energy Efficiency Issues." Economics of the Firm 3, no. 2 (June 17, 2014): 4–7. http://dx.doi.org/10.12737/5988.

Full text

Abstract:

Issues of energy-saving and energy efficiency in the lighting engineering industry of Russia are discussed. Comparative analysis of modern light sources is presented and their role in energy-saving technologies is examined with particular emphasize put on a series of new energy-efficient luminous tube lamps of T5 type.

APA, Harvard, Vancouver, ISO, and other styles

38

Qin, Xiaochun, Qingchao Wei, Lianjun Wang, and Yi Shen. "Solar Lighting Technologies for Highway Green Rest Areas in China: Energy Saving Economic and Environmental Evaluation." International Journal of Photoenergy 2015 (2015): 1–10. http://dx.doi.org/10.1155/2015/926235.

Full text

Abstract:

In this paper, taking Lushan West Sea highway green rest area in Jiangxi Province of China as the case study, the suitable types, applicability, advantages, and effective methods of solar lighting technologies for highway rest area were determined based on the analysis of characteristics of highway green rest area. It was proved that solar lighting technologies including the natural light guidance system, solar LED lighting, and maximizing natural light penetration were quite suitable for highway rest area in terms of lighting effects and energy and economic efficiency. The illuminance comparison of light guidance system with electrical lighting was made based on the on-site experiment. Also, the feasibility of natural light guidance system was well verified in terms of the lighting demand of the visitor centre in the rest area by the illuminance simulation analysis. The evaluation of the energy saving, economic benefits, and environmental effects of solar lighting technologies for highway rest area was, respectively, made in detail. It was proved that the application of solar technology for green lighting of highway rest facilities not only could have considerable energy saving capacity and achieve high economic benefits, but also make great contributions to the reduction of environment pollution.

APA, Harvard, Vancouver, ISO, and other styles

39

Zakaria, Rozana, Armin Amirazar, Mushairry Mustaffar, Rosli Mohammad Zin, and Muhd Zaimi Abd Majid. "Daylight Factor for Energy Saving in Retrofitting Institutional Building." Advanced Materials Research 724-725 (August 2013): 1630–35. http://dx.doi.org/10.4028/www.scientific.net/amr.724-725.1630.

Full text

Abstract:

In Malaysia, lighting is the second electric power consumption after air conditioning and it is increasing every year. Most of the lighting design standard for building in Malaysia is based on MS1525, and this being taken without further measure on daylight consideration. Movement from inefficient and unsustainable energy practice to more energy efficient initiatives is vital for building. Universiti Teknologi Malaysia as one of the major institutional building is consuming 9 to 16 million kWh per year. Thus, about 20% of energy consumed was from artificial lighting. This paper aim to highlights the cost benefit study of lighting retrofit, which integrates the utilization of daylight into existing building. Data for this study was obtained through illumination in-situ measurement on two types of artificial lighting with the inclusive of day lighting before and after lighting retrofit. The measurement was conducted in a typical building in Block C09 of Universiti Teknologi Malaysia (UTM). Annual saving and payback period were analysed from the collected data. It is estimated that total energy consumption decreasing around 47.7% over a year from 84,232kWh to 44,014kWh by retrofitted the fluorescent T8, 36W with fluorescent T5, 25W. The estimated total annual electricity bill saving is at RM11,073 (USD3500.00). The return in retrofitting cost is at 2.5 years payback period. The payback analysis portray that lighting design is best integrated with daylight. The significant amount of saving in energy consumption and the cost of retrofit is obtained by integrating daylight as a source of lighting for interior space.

APA, Harvard, Vancouver, ISO, and other styles

40

Pitonak, Anton, and Martin Lopusniak. "Analysis of Energy Sources on Energy Indicators Performance." Applied Mechanics and Materials 861 (December 2016): 198–205. http://dx.doi.org/10.4028/www.scientific.net/amm.861.198.

Full text

Abstract:

In the members states of the European Union, portion of buildings in the total consumption of energy represents 40%, and their portion in CO2 emissions fluctuates around 35%. The European Union is trying to protect the environment by reducing energy demand and releasing CO2 emissions into the air. Energy performance is the quantity of energy, which is necessary for heating and domestic hot water production, for cooling and ventilation and for lighting. Based on results of energy performance, individual buildings are classified into energy classes A to G. A global indicator (primary energy) is the decisive factor for final evaluation of the building. The new building must meet minimum requirements for energy performance, i.e. it must be classified to energy class A1 since 2016, and to energy class A0 since 2020. The paper analyses effect of the use of different resources of heat in a family house designed according to requirements valid since 2020, and its subsequent classification into an energy class.

APA, Harvard, Vancouver, ISO, and other styles

41

Zheng, Xuejing, Qihang Sun, Xueqing Yang, Huzhen Liu, Fangshu Hu, and Leizhai Sun. "Simulation and Analysis of Building Energy Consumption in Port passenger Stations." E3S Web of Conferences 272 (2021): 01011. http://dx.doi.org/10.1051/e3sconf/202127201011.

Full text

Abstract:

Port passenger station buildings (PPSD) are an important part of transportation buildings in China, which is characterized by large human flow, long operating time, high load of equipment and lighting. The characteristics and functions of PPSD lead to the high energy consumption. However, the energy consumption analysis of PPSD was deficient. In this paper, the characteristics of energy consumption of port passenger stations in cold regions and hot summer and warm winter regions in China were analyzed. Based on eQUEST, the building models of port passenger stations are established. The influencing factors of the building energy consumption were analyzed through orthogonal experiment with SPSS. Results show that the factors such as summer indoor design temperature, heat source form, air conditioning form, window to wall ratio and lighting control mode are the key factors affecting the energy consumption of port passenger station.

APA, Harvard, Vancouver, ISO, and other styles

42

Baglivo, Cristina, Marina Bonomolo, Marco Beccali, and Paolo Maria Congedo. "Sizing analysis of interior lighting using tubular daylighting devices." Energy Procedia 126 (September 2017): 179–86. http://dx.doi.org/10.1016/j.egypro.2017.08.138.

Full text

APA, Harvard, Vancouver, ISO, and other styles

43

Chakraborty, Suddhasatwa, Debtanu Ray, and Saswati Mazumdar. "Introduction of a New Lighting Class for Motorized Roads in Indian Scenario." Light & Engineering, no. 02-2021 (April 2021): 39–49. http://dx.doi.org/10.33383/2020-081.

Full text

Abstract:

The requirement of good lighting in road is an essential criterion. But the global energy crunch forces the optimization of energy consumption in road lighting design. The optimization of road lighting design starts with the determination of exact lighting class of the concerned road. The lighting class of different road depends upon few parameters related to traffic, road and its ambient condition. Most of the Indian roads are mixed and highly motorized in nature. In this paper, a new methodology for lighting classification of motorized Indian roads has been proposed. This proposed model has been developed based upon statistical analysis of traffic related parameters in Indian context. This model has also been validated in some real road context. Furthermore, this paper also demonstrates an approach for designing the lighting installation of a motorized road by maintaining the recommended lighting condition corresponds to the lighting class. This finally leads to an energy efficient design.

APA, Harvard, Vancouver, ISO, and other styles

44

Shams, Mostafa M. E. F., Hosam Abd El-Aziz Amr, and Rania Rushdy Moussa. "Comparative Analysis on the Effects of Natural & Artificial Indoors Lighting on the Learning and Interactive Process." WSEAS TRANSACTIONS ON POWER SYSTEMS 16 (July 8, 2021): 121–27. http://dx.doi.org/10.37394/232016.2021.16.12.

Full text

Abstract:

Schools and universities are the main spaces for learning, in which he building design can easily affect the learning and interactive process where indoor environment should be considered carefully when designing these learning spaces. One of the most important factors considered is lighting. The aim of this research is to investigate the effect of different types of indoor lighting on the learning and interactive process. In this research, The indoors lighting efficacy in two different types of educational places were tested in a quantitative way in addition to users survey for these places to test their satisfaction with the current indoor lighting quality which results that the users prefers natural lighting although it got negative feedback due to inconsistency. Finally, this research gives some recommendations for the usage of the indoors lighting to further enhance the learning and interactive process

APA, Harvard, Vancouver, ISO, and other styles

45

Faturachman, Danny, Erkata Yandri, Endang Tri Pujiastuti, Olga Anne, Roy Hendroko Setyobudi, Yahya Yani, Herry Susanto, Washington Purba, and Satriyo Krido Wahono. "Techno-Economic Analysis of Photovoltaic Utilization for Lighting and Cooling System of Ferry Ro/Ro Ship 500 GT." E3S Web of Conferences 226 (2021): 00012. http://dx.doi.org/10.1051/e3sconf/202122600012.

Full text

Abstract:

The purpose of this study is to perform the techno-economic analysis of photovoltaic system utilization for lighting and cooling of Ferry Ro/Ro 500 GT. The world is facing a dilemma of increasing dependence on fossil energy with decreasing supply. This situation must be anticipated by all sectors by energy efficiency (EE) and utilizing renewable energy (RE). Especially for RE in the transportation sector, ships as consumers of oil energy can also take advantage of solar energy sources, for example for lighting and cooling. For that purpose, five steps must be taken. First, determine the design specifications. Second, determine the specifications of components of the PV system. Third, calculate the power required for lighting equipment. Fourth, calculate the power required for the cooling system. Fifth, make an investment comparison for propulsion systems between diesel engines and photovoltaic systems. The results show that the energy required for lighting and cooling system as well as for propulsion systems can be placed in the deck area of 148.8 m2 for all system components, such as; PV modules, charge controllers, batteries, and inverter. This study can provide an overview of the use of PV system in designing the environmentally new or renovation ships.

APA, Harvard, Vancouver, ISO, and other styles

46

Roslizar, Aiman, M. A. Alghoul, B. Bakhtyar, Nilofar Asim, and K. Sopian. "Annual Energy Usage Reduction and Cost Savings of a School: End-Use Energy Analysis." Scientific World Journal 2014 (2014): 1–8. http://dx.doi.org/10.1155/2014/310539.

Full text

Abstract:

Buildings are among the largest consumers of energy. Part of the energy is wasted due to the habits of users and equipment conditions. A solution to this problem is efficient energy usage. To this end, an energy audit can be conducted to assess the energy efficiency. This study aims to analyze the energy usage of a primary school and identify the potential energy reductions and cost savings. A preliminary audit was conducted, and several energy conservation measures were proposed. The energy conservation measures, with reference to the MS1525:2007 standard, were modelled to identify the potential energy reduction and cost savings. It was found that the school’s usage of electricity exceeded its need, incurring an excess expenditure of RM 2947.42. From the lighting system alone, it was found that there is a potential energy reduction of 5489.06 kWh, which gives a cost saving of RM 2282.52 via the improvement of lighting system design and its operating hours. Overall, it was found that there is a potential energy reduction and cost saving of 20.7% when the energy conservation measures are earnestly implemented. The previous energy intensity of the school was found to be 50.6 kWh/m2/year, but can theoretically be reduced to 40.19 kWh/mm2/year.

APA, Harvard, Vancouver, ISO, and other styles

47

Lim, Young-Taik, Jae-Man Ryu, and Yu-Tak Shin. "A Study on the Pattern Analysis of the Energy Consumption for LED Smart Lighting System." Journal of the Korean Institute of Illuminating and Electrical Installation Engineers 31, no. 6 (June 30, 2017): 91–96. http://dx.doi.org/10.5207/jieie.2017.31.6.091.

Full text

APA, Harvard, Vancouver, ISO, and other styles

48

Tagliabue, Lavinia Chiara, Fulvio Re Cecconi, Nicola Moretti, Stefano Rinaldi, Paolo Bellagente, and Angelo Luigi Camillo Ciribini. "Security Assessment of Urban Areas through a GIS-Based Analysis of Lighting Data Generated by IoT Sensors." Applied Sciences 10, no. 6 (March 23, 2020): 2174. http://dx.doi.org/10.3390/app10062174.

Full text

Abstract:

The current perspective about urban development expects 70% of energy consumption will be concentrated in the cities in 2050. In addition, a growing density of people in the urban context leads to the need for increased security and safety for citizens, which imply a better lighting infrastructure. Smart solutions are required to optimize the corresponding energy effort. In developing countries, the cities’ lighting is limited and the lighting world map is strongly significant about the urban density of the different areas. Nevertheless, in territories where the illumination level is particularly high, such as urban contexts, the conditions are not homogenous at the microscale level and the perceived security is affected by artificial urban lighting. As an example, 27.2% of the families living in the city of Milan, ombardy Region, Italy, consider critical the conditions of lighting in the city during the night, although the region has diffused infrastructure. The paper aims to provide a local illuminance geographic information system (GIS) mapping at the neighborhood level that can be extended to the urban context. Such an approach could unveil the need to increase lighting to enhance the perceived safety and security for the citizens and promote a higher quality of life in the smart city. Lighting mapping can be matched with car accident mapping of cities and could be extended to perceived security among pedestrians in urban roads and green areas, also related to degradation signs of the built environment. In addition, such an approach could open new scenarios to the adaptive street lighting control used to reduce the energy consumption in a smart city: the perceived security of an area could be used as an additional index to be considered during the modulation of the level of the luminosity of street lighting. An example of a measurement set-up is described and tested at the district level to define how to implement an extensive monitoring campaign based on an extended research schema.

APA, Harvard, Vancouver, ISO, and other styles

49

BOGDANOV, A. D., and R. V. SOLOPOV. "COMPARATIVE ANALYSIS OF THE CALCULATION OF LIGHTING SYSTEMS OF VARIOUS TYPES BASED ON INDUSTRIAL PREMISES." Actual Issues Of Energy 3, no. 1 (2021): 009–13. http://dx.doi.org/10.25206/2686-6935-2021-3-1-9-13.

Full text

Abstract:

At present, the issues of economy and energy efficiency are actual for organizations. One of the ar eas of ener gy saving is the optimization of the functioning of lighting systems. Lighting of premises of industrial enterprises with a long stay of people is the object of research in this article. Based on comparative calculations, this article shows the efficiency of using the most common configurations of lighting systems that pr ovide high-quality and economical illumination of workplaces that meet the requirements of construction, technical and sanitary regulatory documents, as well as the efficiency of using software for designing lighting systems. To design the lighting of premises, design bureaus use manual methods for calculating the electric lighting of premises. The authors of the article presented an innovative method for designing electric lighting using the DIALux evo program. The program has combined all calculation methods and optimized them. The results of the wor k, obtained by calculation using the DIALux evo software, are advisory in the design of electr ic lighting systems.

APA, Harvard, Vancouver, ISO, and other styles

50

Chang, Chung Yi, and Hsien Te Lin. "Energy Saving and Payback Period for Retrofitting of Lighting Systems in Taiwan." Applied Mechanics and Materials 71-78 (July 2011): 2190–95. http://dx.doi.org/10.4028/www.scientific.net/amm.71-78.2190.

Full text

Abstract:

Because of the energy crisis and the low proportion of new buildings in Taiwan, rational use of electricity in existing buildings becomes very important for reducing carbon emissions and combating global climate change. The retrofitting of lighting systems is one of the most widely adopted energy saving measures. This study presents the potential energy saving and payback period of lighting system retrofit through replacing low performance T8 fluorescents with T5 fluorescents and LED indicator lights in the Green Building Renovation Plan. Based on the analysis, this study concludes that lighting system retrofit can achieve significant energy saving ratios of 10-17.5% in daily use. However, the average payback periods of GBRP investment and normal purchase investment are ten years and 7.82 years, respectively. Both exceed the average lifetime of lighting equipment, suggesting that lighting system retrofit is slightly uneconomical because of the low electricity tariff in Taiwan.

APA, Harvard, Vancouver, ISO, and other styles

Journal articles on the topic 'Energy and lighting analysis'

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles