Energy-efficient illuminating system components — light sources, ballasts, and luminaires

Author(s):  
Kao Chen
2018 ◽  
pp. 113-119
Author(s):  
Gennady Ya. Vagin ◽  
Eugene B. Solntsev ◽  
Oleg Yu. Malafeev

The article analyses critera applying to the choice of energy efficient high quality light sources and luminaires, which are used in Russian domestic and international practice. It is found that national standards GOST P 54993–2012 and GOST P 54992– 2012 contain outdated criteria for determining indices and classes of energy efficiency of light sources and luminaires. They are taken from the 1998 EU Directive #98/11/EU “Electric lamps”, in which LED light sources and discharge lamps of high intensity were not included. A new Regulation of the European Union #874/2012/EU on energy labelling of electric lamps and luminaires, in which these light sources are taken into consideration, contains a new technique of determining classes of energy efficiency and new, higher classes are added. The article has carried out a comparison of calculations of the energy efficiency classes in accordance with GOST P 54993 and with Regulation #874/2012/EU, and it is found out that a calculation using GOST P 54993 gives underrated energy efficiency classes. This can lead to interdiction of export for certain light sources and luminaires, can discredit Russian domestic manufacturer light sources and does not correspond to the rules of the World Trade Organization (WTO).


Author(s):  
Leonid Yuferev ◽  
Alexander Sokolov

This chapter describes how with the artificial cultivation of plants lamps are required with a certain spectrum of radiation. For lighting plants have developed a special lamp. Industry produces special gas discharge lamp. In these lamps a fixed range of radiation. Recently, there were light sources for plants on LEDs. LEDs can create light with any spectrum range from 360 to 800 nm. The authors of the article give a technique for modeling the spectrum of luminaires and calculating LED lamps for plants. The tests of the developed lamps for plants in dark chambers are given. A description of a resonant regulated power supply system for LED luminaires is given. In the proposed system when the frequency changes radiation power.


2015 ◽  
Vol 78 ◽  
pp. 2657-2662
Author(s):  
Johan Nordén ◽  
Henrik Karlsson ◽  
Caroline Markusson ◽  
Svein Ruud ◽  
Mikael Lindgren ◽  
...  

Author(s):  
Andrey V. Aladov ◽  
Vladimir P. Valyukhov ◽  
Vladimir D. Kuptsov ◽  
Sergey V. Demin ◽  
Anna V. Valyukhova

2020 ◽  
Vol 21 (2) ◽  
pp. 338-346
Author(s):  
N. V. Danyliuk ◽  
T. R. Tatarchuk ◽  
A. V. Shyichuk

Photocatalytic oxidation of organic contaminants is a hot topic in environmental research. However, an effective purification process needs an effective photoreactor. Typical light sources such as mercury and halogen lamps are replaced with more energy efficient Light Emitting Diodes. In the current work, a miniature photoreactor with low catalyst consumption was presented. The work of the micro-photoreactor is investigated using anatase and P25 industrial titania as model catalysts. The key element of the microreactor is replaceable UV-LED.  The used 365 nm emission wavelength is optimal for the model pollutant Rhodamine B dye. The micro-photoreactor is able to mineralize the Rhodamine B dye almost completely.


Author(s):  
Chun-Lien Su ◽  
Yi-Hung Yeh ◽  
Ching-Hsiang Liu ◽  
Cheng-Wei Lin ◽  
Li-Wei Wang ◽  
...  

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