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 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.

Study on Energy Saving Retrofitting Strategies for Existing Public Buildings in Shanghai

2009 ◽  
Author(s):  
Yuming Li ◽  
Yiqun Pan ◽  
Chen Chen
Keyword(s):  
Energy Saving ◽  
Building Energy ◽  
Payback Period ◽  
Building Envelope ◽  
Lighting System ◽  
Existing Buildings ◽  
Public Buildings ◽  
Different Types ◽  
Building Energy Analysis ◽  
Energy Conservation Measures

Public buildings include office building, schools, hotels, hospitals, retails and others. This paper selects two types of existing public buildings — office and hotel to conduct research. It firstly introduces and analyzes the feasible energy saving retrofitting strategies and technologies for existing public buildings in Shanghai, mainly about building envelope, HVAC system and lighting system. Then it builds up prototypical models, with whole building energy analysis software—EnergyPlus, for office and hotel respectively to simulate and calculate the annual energy saving and payback period of the various strategies. Therefore the different features of the two types of buildings and the energy saving effects of various strategies used on them are studied. The results show that the energy saved by each one strategy may be different for different types of existing buildings. For office buildings, such ECMs (energy conservation measures) as external shading, energy efficient lighting system, daylighting in perimeter area and variable pumps have short payback period. While for hotels, external shading, variable pumps and temperature reset have short payback period.

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.

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. 

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

2018 ◽  
Vol 10 (11) ◽  
pp. 4075 ◽  
Author(s):  
Sulee Bunjongjit ◽  
Atthapol Ngaopitakkul
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Energy Saving ◽  
Control Unit ◽  
Experimental Result ◽  
Lighting System ◽  
Standard Case ◽  
Lighting Control ◽  
Lecture Room ◽  
Lighting Systems

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

Energy Saving Analysis of Solar-Powered LED Street Lighting Systems

2012 ◽  
Vol 490-495 ◽  
pp. 2254-2258
Author(s):  
Li Lin Zang ◽  
Shuo Li ◽  
Da Jun Tian
Keyword(s):  
Energy Saving ◽  
Light Emitting Diode ◽  
Cost Comparison ◽  
Lighting System ◽  
Street Lighting ◽  
Led Lighting ◽  
Lighting Systems ◽  
Solar Powered ◽  
Saving Effect ◽  
The Cost

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.

Assessment of potential energy saving using cluster analysis: A case study of lighting systems in buildings

2012 ◽  
Vol 52 ◽  
pp. 145-152 ◽  
Author(s):  
Siriwarin Petcharat ◽  
Supachart Chungpaibulpatana ◽  
Pattana Rakkwamsuk
Keyword(s):  
Cluster Analysis ◽  
Potential Energy ◽  
Energy Saving ◽  
Potential Energy Saving ◽  
Lighting Systems

Smart Lights Technology Used in Library Energy-Saving

2013 ◽  
Vol 773 ◽  
pp. 227-232 ◽  
Author(s):  
Rong Mao Zheng ◽  
Gui Xiong Liu ◽  
Yue Hua Xu
Keyword(s):  
Energy Saving ◽  
New Technology ◽  
Lighting System ◽  
Public Places ◽  
Electrical Systems ◽  
Lighting Systems ◽  
Saving Effect ◽  
Air Conditioning Systems ◽  
Led Lights ◽  
Room Lighting

Government attaches great importance to energy saving issue has caused. Library as densely populated public places, its energy consumption is 5 to 15 times the average residential. Many factors involved in libraries energy saving, such as air-conditioning systems, lighting systems and other electrical systems. The library has great potential for energy saving. This paper studies how to apply the smart lights technology in the library energy-saving. Based on the analysis of existing library monitoring system, we propose a possible smart lights method which will be used in the library energy-saving. Effective methods and strategies of smart light energy-saving were researched. Smart LED lights and wisdom lamp holders, hardware and software are designed and implemented which was used in the library energy-saving. The smart LED lights were used in library study room lighting reconstruction. Practice shows that the energy-saving of new lighting system effective. Theoretically for the new technology could bring more than 30% of the energy-saving effect.

Modernisation of Lighting Systems of a Casting and Extrusion Plant in Krasnoyarsk

2020 ◽  
pp. 43-50
Author(s):  
Galina M. Belan ◽  
Alexander T. Ovcharov
Keyword(s):  
High Pressure ◽  
Payback Period ◽  
Light Environment ◽  
Lighting System ◽  
High Quality ◽  
Lighting Systems ◽  
Technical Solutions

The article describes modernisation of the lighting systems of Segal Casting and Extrusion Plant LLC in Krasnoyarsk and technical solutions of its implementation. The parameters of the new lighting system based on Diora Craft LED luminaires are presented and it is shown that replacement of luminaires based on high pressure mercury lamps (HPML) with LED luminaires allows saving 73.5 % of power consumed by lighting with high quality of the light environment established in the shops of the plant. Payback period of such modernisation is 1 year.

The Analysis on Energy Saving Reconstruction of a Grade III-A General Hospital in Wuhan

2012 ◽  
Vol 594-597 ◽  
pp. 2077-2081 ◽  
Author(s):  
Yu Yun Li ◽  
Zhi Zhang ◽  
Hai Ceng Li ◽  
Chun Zhi Zhang
Keyword(s):  
Energy Saving ◽  
Flue Gas ◽  
Unit Area ◽  
Payback Period ◽  
Air Conditioning System ◽  
Central Heating ◽  
Total Investment ◽  
Energy Consuming ◽  
Lighting Systems ◽  
Grade Iii

Take one of Grade III-A general hospitals in Wuhan as the research object with auditing the hospital's energy consuming system. It can be proved that the energy consumption per unit area is 27kgce/m2 , analysis of typical of the hospital exterior envelope, lighting systems, central heating and air conditioning system for hospital energy, gave priority to recycle the boiler flue gas heat and condensation water, natural light using, exterior windows transforming and installation of the sub-metering systems for energy saving renovation. The comprehensive transformation energy-saving rate is 31.71%. Energy saving quantity is 318.01tce. A total investment is 4.3948 million yuan. The payback period is 2.5 years.

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