Новая конструкция светодиодного светильника с тепловыми трубами
The problem of climate change poses a challenge for humanity: it is necessary to reduce harmful emissions into the atmosphere, caused mainly by the burning of coal in thermal power plants. Partially, this problem can be solved by the use of energy-saving devices and equipment, including the replacem...
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PE "Politekhperiodika", Book and Journal Publishers
2019
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oai:tkea.com.ua:article-1182025-05-30T19:26:08Z New LED lamp design with heat pipes Новая конструкция светодиодного светильника с тепловыми трубами Pekur, Demyd Nikolaenko, Yurii Sorokin, Viktor LED lamp LED heat pipe temperature distribution speed distribution світлодіодний світильник теплова труба система охолодження комп’ютерне моделювання The problem of climate change poses a challenge for humanity: it is necessary to reduce harmful emissions into the atmosphere, caused mainly by the burning of coal in thermal power plants. Partially, this problem can be solved by the use of energy-saving devices and equipment, including the replacement of traditional light sources with more efficient LEDs. This, however, causes the problem of ensuring normal thermal modes of the LEDs, since the more powerfull the LED is, the more heat is released in their semiconductor crystals, which leads to an increase in the temperature of the crystals and a decrease in the reliability of the device. This problem becomes especially urgent when using powerful multi-chip LED light sources, the so-called SOB matrices, whose power even now exceeds 500 W.This article presents a new design of a powerful LED lamp for indoor illumination of rooms with low ceilings. The heat from the LED is transferred via heat pipes to the heat exchanger rings looped around the light source. The heat exchanger rings are cooled by the natural convection of the surrounding air (at an ambient air temperature of 20°C). Computer simulation allowed evaluating the ability of the proposed cooling system to provide a normal thermal mode of the LED light source. The results on the computer simulations of the temperature field of light source's cooling system showed that when the LED power is 300 W, the temperature of the light source's base at the point where it is connected to the light source does not exceed 67.6°C. When the contact zone is covered with a 0.1 mm layer of heat-conducting paste (Arctic Silver 5 type) with a thermal conductivity coefficient of 8.7 W/(m·°C), the temperature of the LED case reaches 70°C. If the thermal resistance of the LED light source is 0.1°C/W, then the temperature of its semiconductor crystals will be 100°C, well below the allowable temperature value of 150°C. The total thermal resistance of the cooling system is 0.159°C/W. Запропоновано нову систему охолодження з тепловими трубами для забезпечення нормального теплового режиму світлодіодного джерела освітлення, яке можна використовувати у приміщеннях з низькими стелями. Дослідження системи проводились за допомогою комп’ютерного моделювання. Вони показали, що за потужності світильника 300 Вт температура основи в місці приєднання джерела освітлення не перевищує 67,6°С. За використання в зоні контакту шару теплопровідної пасти з коефіцієнтом теплопровідності 8,7 Вт/(м·°С) товщиною 0,1 мм це відповідає температурі корпусу 70,0°С. Якщо тепловий опір світильника становить 0,1°С/Вт, температура його напівпровідникових кристалів становитиме 100°С, що суттєво нижче припустимого значення температури, яке дорівнює 150°С. Загальний тепловий опір системи охолодження становить 0,159°С/Вт. PE "Politekhperiodika", Book and Journal Publishers 2019-12-26 Article Article Peer-reviewed Article application/pdf https://www.tkea.com.ua/index.php/journal/article/view/TKEA2019.5-6.34 10.15222/TKEA2019.5-6.34 Technology and design in electronic equipment; No. 5–6 (2019): Tekhnologiya i konstruirovanie v elektronnoi apparature; 34-42 Технологія та конструювання в електронній апаратурі; № 5–6 (2019): Технология и конструирование в электронной аппаратуре; 34-42 3083-6549 3083-6530 10.15222/TKEA2019.5-6 uk https://www.tkea.com.ua/index.php/journal/article/view/TKEA2019.5-6.34/108 Copyright (c) 2019 Pekur D. V., Nikolaenko Yu. E., Sorokin V. M. http://creativecommons.org/licenses/by/4.0/ |
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Technology and design in electronic equipment |
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2025-05-30T19:26:08Z |
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OJS |
| language |
Ukrainian |
| topic |
світлодіодний світильник теплова труба система охолодження комп’ютерне моделювання |
| spellingShingle |
світлодіодний світильник теплова труба система охолодження комп’ютерне моделювання Pekur, Demyd Nikolaenko, Yurii Sorokin, Viktor Новая конструкция светодиодного светильника с тепловыми трубами |
| topic_facet |
LED lamp LED heat pipe temperature distribution speed distribution світлодіодний світильник теплова труба система охолодження комп’ютерне моделювання |
| format |
Article |
| author |
Pekur, Demyd Nikolaenko, Yurii Sorokin, Viktor |
| author_facet |
Pekur, Demyd Nikolaenko, Yurii Sorokin, Viktor |
| author_sort |
Pekur, Demyd |
| title |
Новая конструкция светодиодного светильника с тепловыми трубами |
| title_short |
Новая конструкция светодиодного светильника с тепловыми трубами |
| title_full |
Новая конструкция светодиодного светильника с тепловыми трубами |
| title_fullStr |
Новая конструкция светодиодного светильника с тепловыми трубами |
| title_full_unstemmed |
Новая конструкция светодиодного светильника с тепловыми трубами |
| title_sort |
новая конструкция светодиодного светильника с тепловыми трубами |
| title_alt |
New LED lamp design with heat pipes |
| description |
The problem of climate change poses a challenge for humanity: it is necessary to reduce harmful emissions into the atmosphere, caused mainly by the burning of coal in thermal power plants. Partially, this problem can be solved by the use of energy-saving devices and equipment, including the replacement of traditional light sources with more efficient LEDs. This, however, causes the problem of ensuring normal thermal modes of the LEDs, since the more powerfull the LED is, the more heat is released in their semiconductor crystals, which leads to an increase in the temperature of the crystals and a decrease in the reliability of the device. This problem becomes especially urgent when using powerful multi-chip LED light sources, the so-called SOB matrices, whose power even now exceeds 500 W.This article presents a new design of a powerful LED lamp for indoor illumination of rooms with low ceilings. The heat from the LED is transferred via heat pipes to the heat exchanger rings looped around the light source. The heat exchanger rings are cooled by the natural convection of the surrounding air (at an ambient air temperature of 20°C). Computer simulation allowed evaluating the ability of the proposed cooling system to provide a normal thermal mode of the LED light source. The results on the computer simulations of the temperature field of light source's cooling system showed that when the LED power is 300 W, the temperature of the light source's base at the point where it is connected to the light source does not exceed 67.6°C. When the contact zone is covered with a 0.1 mm layer of heat-conducting paste (Arctic Silver 5 type) with a thermal conductivity coefficient of 8.7 W/(m·°C), the temperature of the LED case reaches 70°C. If the thermal resistance of the LED light source is 0.1°C/W, then the temperature of its semiconductor crystals will be 100°C, well below the allowable temperature value of 150°C. The total thermal resistance of the cooling system is 0.159°C/W. |
| publisher |
PE "Politekhperiodika", Book and Journal Publishers |
| publishDate |
2019 |
| url |
https://www.tkea.com.ua/index.php/journal/article/view/TKEA2019.5-6.34 |
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2025-09-24T17:30:24Z |
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2025-09-24T17:30:24Z |
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