scholarly journals SAVING ENERGY: A REVIEW ON ENERGY SAVINGS IN LIGHTING BUILDINGS IN AN INSTALLATION

2017 ◽  
Vol 5 (11) ◽  
pp. 290-294
Author(s):  
Vijayant Kumar
Keyword(s):  
Energy Saving ◽  
Energy Savings ◽  
Operating Time ◽  
Lighting System ◽  
End User ◽  
Light Production ◽  
Significant Achievement ◽  
Energy Saving Technology ◽  
Lighting Systems

The fossil fuel reserves in India are rapidly exhausting with the country's development. To cope with the energy crisis, end-user efficiency plays an important role. This paper deals with energy saving in lighting systems with the replacement of lighting programs, as in India there is in all sectors a growing demand for energy. A number of commonly used lighting sources and their comparison in light production were discussed. The campus lighting system consisting of a T12 fluorescent lamp for monitoring the residential and institutional area of an existing device can be replaced by proposed LED lighting with equivalent performance, but has greater efficiency to reduce light energy consumption, This improvement Endbenutzereffizienz reduce the peak and the average demand of electricity, which reduces the load on the power grid. The annual energy savings through the proposed system are about 65% over current costs, which is a significant achievement of the energy saving technology. The retrofit period for the proposed lighting system installation is a little over three years. The initial investment for a short-term rating is slightly higher, but at a long-term valuation, the initial investment for the proposed regime is reduced by 50%, as the operating time of the proposed system is approximately five times higher higher than the current regime.

A field study of fluorescent and LED classroom lighting

2016 ◽  
Vol 50 (4) ◽  
pp. 631-650 ◽  
Author(s):  
N Gentile ◽  
T Goven ◽  
T Laike ◽  
K Sjoberg
Keyword(s):  
Secondary School ◽  
Field Study ◽  
Energy Savings ◽  
Electricity Consumption ◽  
Visual Comfort ◽  
Lighting System ◽  
Upper Secondary ◽  
Lighting Systems ◽  
Indoor Lighting ◽  
Academic Year

Indoor lighting is facing a massive retrofit to LED lighting. Research is needed to assess whether LED-based lighting can promote energy efficiency, boost visual comfort and support biological functions. This field study considered the lighting of four identical classrooms in an upper secondary school in Helsingborg, Sweden. Two classrooms were fitted with state-of-the-art ceiling pendants containing T5 fluorescent tubes and that had a direct/indirect light distribution (the control rooms). The other two classrooms were fitted with an experimental LED indirect lighting system (the experimental rooms). In the classrooms, 72 students aged 17–18 years performed their usual educational activities over a whole academic year. The light environment, electricity consumption, and students’ mood, light perception and saliva cortisol concentration were monitored. The two lighting systems produced only marginal differences. Overall, the experimental rooms were slightly preferred but achieved only small energy savings due to high parasitic losses.

scholarly journals Energy Efficient Lighting Design Criteria: Cost-Effective Solutions in an Industrial Environment

2007 ◽  
Author(s):  
Frank J. Agraz ◽  
John Maneri
Keyword(s):  
Energy Consumption ◽  
Energy Efficient ◽  
Return On Investment ◽  
Energy Savings ◽  
Cost Effective ◽  
Lighting Design ◽  
Design Criteria ◽  
Lighting System ◽  
Light Levels

The continual rising cost of energy, existing outdated lighting technology, and inefficient lighting designs have given property owners the opportunity to improve their facilities by retrofitting their existing luminaires with an energy efficient lighting system. A lighting retrofit uses the existing electrical infrastructure to replace, relocate, or convert existing luminaires with the latest generation of cost-effective components. New lighting technology has emerged within the last 6 years that generates energy savings of 40% to 50% while maintaining existing light levels. These upgraded and field-tested solutions lower energy consumption, generate a healthy financial return on investment, and can improve both the quality and quantity of light in the task area. As with any other solution, a cost-effective lighting system must be designed and engineered carefully to accommodate the needs of each work space. Simply installing a new lamp into an existing luminaire will not necessarily guarantee substantial energy savings or an improved lighting environment. In any space that uses electric lighting, the lighting designer must evaluate potential solutions for energy consumption, maintenance concerns, delivered light levels, hostile environments, and the overall economic impact of installing and long-term operation of the new system. In this paper, the author will discuss energy efficient lighting design criteria and how a lighting designer properly engineers a retrofit project to deliver energy savings without sacrificing light levels. The discussion includes a summary of both traditional and emerging technologies, and the long-term impact on energy consumption, maintenance, return on investment, lighting quality, and delivered light levels. Paper published with permission.

Development of Energy-Resource-Saving Lighting Installations for Agriculture

2020 ◽  
pp. 95-102
Author(s):  
Irina G. Pospelova ◽  
Mariya A. Nabatchikova ◽  
Ilshat I. Iksanov
Keyword(s):  
Automatic Control ◽  
Energy Saving ◽  
Energy Savings ◽  
Energy Resource ◽  
Electrical Energy ◽  
Research Purpose ◽  
Industrial Complex ◽  
Resource Saving ◽  
Led Lighting ◽  
Lighting Systems

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.

scholarly journals Cost-Benefit Analysis and Emission Reduction of Energy Efficient Lighting at the Universiti Tenaga Nasional

2014 ◽  
Vol 2014 ◽  
pp. 1-11 ◽  
Author(s):  
G. S. B. Ganandran ◽  
T. M. I. Mahlia ◽  
Hwai Chyuan Ong ◽  
B. Rismanchi ◽  
W. T. Chong
Keyword(s):  
Energy Saving ◽  
Cost Benefit Analysis ◽  
Cost Benefit ◽  
Environmental Benefits ◽  
First Year ◽  
Lighting System ◽  
New Energy ◽  
Lighting Systems ◽  
Electricity Saving ◽  
College Of Engineering

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.

Energy Saving and Payback Period for Retrofitting of Lighting Systems in Taiwan

2011 ◽  
Vol 71-78 ◽  
pp. 2190-2195
Author(s):  
Chung Yi Chang ◽  
Hsien Te Lin
Keyword(s):  
Energy Saving ◽  
Global Climate ◽  
Green Building ◽  
Payback Period ◽  
Average Lifetime ◽  
Lighting System ◽  
Potential Energy Saving ◽  
Low Performance ◽  
Lighting Systems ◽  
New Buildings

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.

scholarly journals Smart Lighting Application for Energy Saving and User Well-Being in the Residential Environment

2021 ◽  
Vol 13 (11) ◽  
pp. 6198
Author(s):  
Moe Soheilian ◽  
Géza Fischl ◽  
Myriam Aries
Keyword(s):  
Literature Review ◽  
Energy Saving ◽  
Well Being ◽  
Residential Environment ◽  
Controlled Environment ◽  
Lighting System ◽  
Smart Lighting ◽  
Residential Environments ◽  
Lighting Systems ◽  
Lighting Application

The idea of smart lighting has emerged over the years in commercial and industrial environments, with a focus on energy saving. With the advancement in technology, smart lighting can now offer opportunities in addition to energy saving to users in home environments for the provision of a comfortable atmosphere and the maintenance of user well-being. Currently, research in the smart lighting field is predominantly dedicated to energy saving in non-residential environments; meanwhile, the residential environments have not been explored. Therefore, a literature review was conducted to provide an overview of smart lighting systems’ effect on energy and well-being in the residential environment. Current research is mostly limited to designing and developing a smart lighting system in a controlled environment, with a limited evaluation of well-being and comfort. The review shows that residential smart lighting application possibilities and opportunities are not widely and thoroughly explored.

A new lighting method for cultural materials using selective chromatic light

2021 ◽  
pp. 147715352110254
Author(s):  
M Gargano ◽  
S Scotuzzi ◽  
EM Angelin ◽  
O Santilli ◽  
JM del Hoyo-Meléndez ◽  
...  
Keyword(s):  
Light Sensitivity ◽  
The Other ◽  
Critical Component ◽  
Lighting System ◽  
Light Stability ◽  
Different Types ◽  
Colour Changes ◽  
Museum Environment ◽  
Lighting Systems

Lighting is a critical component in a museum environment because, together with temperature, relative humidity and pollutants, it is one of the damaging factors able to produce long‐term, cumulative and irreversible photodegradation processes. To correctly preserve artworks, limiting illuminance and exposure is recommended, allowing on one side the preservation of the object, but on the other limiting the display of the object, especially for sensitive materials. The aim of this research was to develop, evaluate and compare a new lighting method for paintings and other cultural materials to improve the experience of the objects whilst reducing the risks from exposure. The idea is based on the use of selective chromatic light where the component of the spectrum absorbed by the materials is removed. This absorption is the principal cause of photodegradation. The proposed lighting system can be obtained by combining different types of projection systems together with filtering using an appropriate light source. Six methods of light projection have been compared for two mock-ups simulating real artworks with high and medium light sensitivity. The efficiency of illumination increased from 30% to 111% compared to standard lighting systems. Light stability tests were additionally performed, finding reduced colour changes compared to traditional lighting systems.

scholarly journals A Multi-Period Approach for the Optimal Energy Retrofit Planning of Street Lighting Systems

2019 ◽  
Vol 9 (5) ◽  
pp. 1025 ◽  
Author(s):  
Raffaele Carli ◽  
Mariagrazia Dotoli ◽  
Roberta Pellegrino
Keyword(s):  
Decision Making ◽  
Energy Efficiency ◽  
Energy Savings ◽  
Lighting System ◽  
Financial Benefit ◽  
Street Lighting ◽  
Single Period ◽  
Lighting Energy ◽  
Lighting Systems ◽  
The City

Investing in the optimal measures for improving the energy efficiency of urban street lighting systems has become strategic for the economic, technological and social development of cities. The decision-making process for the selection of the optimal set of interventions is not so straightforward. Several criticalities-such as difficulties getting access to credit for companies involved in street lighting systems refurbishment, budget constraints of municipalities, and unawareness of the actual energy and economic performance after a retrofitting intervention-require a decision-making approach that supports the city energy manager in selecting the optimal street lighting energy efficiency retrofitting solution while looking not only based on the available budget, but also based on the future savings in energy expenditures. In this context, the purpose of our research is to develop an effective decision-making model supporting the optimal multi-period planning of the street lighting energy efficiency retrofitting, which proves to be more effective and beneficial than the classical single-period approach and has never before been applied to the considered public lighting system context. The proposed methodology is applied to a real street lighting system in the city of Bari, Italy, showing the energy savings and financial benefit obtained through the proposed method. Numerical experiments are used to investigate and quantify the effects of using a multi-period planning approach instead of a single-period approach.

scholarly journals Integration of Natural and Artificial Light on Energy Efficiency of the Mega Bank Makassar Tower Building

2021 ◽  
Vol 4 (1) ◽  
pp. 71-80
Author(s):  
Isty Cahyani Ismail ◽  
Ramli Rahim ◽  
Baharuddin Hamzah
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Light Intensity ◽  
Energy Use ◽  
Energy Savings ◽  
Building Design ◽  
Artificial Light ◽  
Lighting System ◽  
Lighting Systems ◽  
Save Energy

One of the largest energy consumers in the world is buildings. The energy consumption comes from the lighting system. Energy use in buildings is generally 25% for lighting systems. The strategy used in building design is to reduce energy consumption while maintaining the best comfort in a building. The application of energy-saving concepts from the building sector is optimizing the lighting system by integrating natural and artificial lighting systems. This study aims to determine the light intensity in the integrated lighting system of natural and artificial manually and also to find out how much energy can be saved with the integrated lighting system manually. The research location is at the Mega Bank Makassar Tower Building. The research sample was selected by purposive sampling and the sixth floor was chosen as the research location. In this study, simulations were carried out using the DIAlux 4.13 program to integrate natural and artificial light and to calculate the amount of energy efficiency in the workspace. To obtain optimal light intensity and energy savings, a simulation was carried out by turning off half the light points in the workspace, especially the light points around the building openings. The simulation results show that the average integrated lighting quality meets the minimum lighting requirements and can save energy usage by up to 50%. Keywords: energy efficiency; integration lighting; workspace

scholarly journals Energy­Saving Lighting of Agricultural Premises and its Parameters Calculation

2021 ◽  
Vol 15 (3) ◽  
pp. 28-34
Author(s):  
L. Yu. Yuferev
Keyword(s):  
Energy Saving ◽  
Full Range ◽  
Light Level ◽  
Housing System ◽  
Research Purpose ◽  
Light Sources ◽  
Lighting System ◽  
Led Light ◽  
Lighting Systems ◽  
Provided Examples

he properly selected lighting for livestock farms is noted to ensure the optimal productivity of bred animals and poultry and to generate profit for the enterprise. (Research purpose) The research purpose is to substantiate the parameters of energy-saving lighting for agricultural premises and to develop methods for its calculation. (Materials and methods)  It has been shown that greenhouse farms most often use high and low pressure sodium lamps for lighting, but their spectrum only partially substitutes the natural one. It has been assumed that expanding the spectrum and approximating it to the solar one could improve product quality and yield. It has been stated that incandescent and fluorescent lamps are traditionally used to illuminate livestock and poultry premises, but they cannot create a lighting system with a «dawn - sunset» function, and their spectrum does not correspond to the full range perceived by animals and birds. It has been noted that the LED light sources’ functioning has such features that make the application of standard calculation methods impossible. We obtained formulas for calculating the light level and flux of photons. (Results and discussion) We provided examples of applying the energy-saving lighting systems developed by us in poultry houses with floor housing system, in cowsheds with tethered housing system and in an experimental phyto-laboratory for growing seedlings. It has been found that after replacing the lighting system based on DRL-125 lamps with a new one, with 36 nine-watt LED lamps, the power consumption decreased from 2,250 to 336 watts, the average light level increased and amounted to 90 lux, while the  illumination uniformity and color rendition improved. We have developed a resonant power supply system for LEDs to create lighting systems with a «sunrise - sunset» function. (Conclusions)  We have shown the possibility and provided examples of using the developed by us energy-saving controlled lighting systems based on LED light sources. 

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