Experimental study of a compact cooling system with heat pipes for powerful LED matrices
LED light sources, and powerful multichip light sources in particular, are currently widely used for lighting household and industrial premises. With an increase in power, the amount of heat increases as well, which leads to an increase in the temperature of semiconductor crystals and, accordingly,...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Politehperiodika
2020-09-01
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| Series: | Tekhnologiya i Konstruirovanie v Elektronnoi Apparature |
| Subjects: | |
| Online Access: | http://tkea.com.ua/journalarchive/2020_3-4/6.pdf |
| _version_ | 1819019826047221760 |
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| author | Pekur D. V. Sorokin V. M. Nikolaenko Yu. E. |
| author_facet | Pekur D. V. Sorokin V. M. Nikolaenko Yu. E. |
| author_sort | Pekur D. V. |
| collection | DOAJ |
| description | LED light sources, and powerful multichip light sources in particular, are currently widely used for lighting household and industrial premises. With an increase in power, the amount of heat increases as well, which leads to an increase in the temperature of semiconductor crystals and, accordingly, to a decrease in the reliability of LEDs and a change in their photometric characteristics. Therefore, when developing the design of LED lighting devices, special attention is paid to thermal management. Since the early 2000s, heat pipes have been widely used to efficiently remove heat from powerful electronic components. They do not require power for moving the working fluid and are most suitable for use in LED luminaires.
In this study, the authors carry out a computer simulation of a cooling system based on heat pipes, which is then used to design and test a powerful compact LED lamp with a thermal load of up to 100 W.
Heat pipes with a length of 150 mm are used to remove heat from the LED light source to the heat exchanger rings located concentrically around it. The heat exchanger rings are cooled by natural convection of the ambient air. The results of computer modeling of the temperature field of the developed cooling system show that at a power of the LED light source of 140.7 W, the temperature of the LED matrix case is 60.5В°C, and the experimentally measured temperature is 61.3В°C. The experimentally determined thermal power of the LED matrix is 91.5 W. The p-n junction temperature is 79.6В°C. The total thermal resistance of the cooling system is 0.453В°C/W. The obtained results indicate the effectiveness of the developed design. |
| first_indexed | 2024-12-21T03:41:29Z |
| format | Article |
| id | doaj.art-1dd0f48ef45641faabf35651572150d7 |
| institution | Directory Open Access Journal |
| issn | 2225-5818 2309-9992 |
| language | English |
| last_indexed | 2024-12-21T03:41:29Z |
| publishDate | 2020-09-01 |
| publisher | Politehperiodika |
| record_format | Article |
| series | Tekhnologiya i Konstruirovanie v Elektronnoi Apparature |
| spelling | doaj.art-1dd0f48ef45641faabf35651572150d72022-12-21T19:17:12ZengPolitehperiodikaTekhnologiya i Konstruirovanie v Elektronnoi Apparature2225-58182309-99922020-09-013-4354110.15222/TKEA2020.3-4.35Experimental study of a compact cooling system with heat pipes for powerful LED matricesPekur D. V.0Sorokin V. M.1Nikolaenko Yu. E.2Ukraine, Kyiv, V. E. Lashkaryov Institute of Semiconductor Physics NAS of UkraineUkraine, Kyiv, V. E. Lashkaryov Institute of Semiconductor Physics NAS of UkraineUkraine, Kyiv, National Technical University of Ukraine "Igor Sikorsky Kiev Polytechnic Institute"LED light sources, and powerful multichip light sources in particular, are currently widely used for lighting household and industrial premises. With an increase in power, the amount of heat increases as well, which leads to an increase in the temperature of semiconductor crystals and, accordingly, to a decrease in the reliability of LEDs and a change in their photometric characteristics. Therefore, when developing the design of LED lighting devices, special attention is paid to thermal management. Since the early 2000s, heat pipes have been widely used to efficiently remove heat from powerful electronic components. They do not require power for moving the working fluid and are most suitable for use in LED luminaires. In this study, the authors carry out a computer simulation of a cooling system based on heat pipes, which is then used to design and test a powerful compact LED lamp with a thermal load of up to 100 W. Heat pipes with a length of 150 mm are used to remove heat from the LED light source to the heat exchanger rings located concentrically around it. The heat exchanger rings are cooled by natural convection of the ambient air. The results of computer modeling of the temperature field of the developed cooling system show that at a power of the LED light source of 140.7 W, the temperature of the LED matrix case is 60.5В°C, and the experimentally measured temperature is 61.3В°C. The experimentally determined thermal power of the LED matrix is 91.5 W. The p-n junction temperature is 79.6В°C. The total thermal resistance of the cooling system is 0.453В°C/W. The obtained results indicate the effectiveness of the developed design.http://tkea.com.ua/journalarchive/2020_3-4/6.pdfled lighting deviceheat pipecooling systemcomputer simulationexperimental simulation |
| spellingShingle | Pekur D. V. Sorokin V. M. Nikolaenko Yu. E. Experimental study of a compact cooling system with heat pipes for powerful LED matrices Tekhnologiya i Konstruirovanie v Elektronnoi Apparature led lighting device heat pipe cooling system computer simulation experimental simulation |
| title | Experimental study of a compact cooling system with heat pipes for powerful LED matrices |
| title_full | Experimental study of a compact cooling system with heat pipes for powerful LED matrices |
| title_fullStr | Experimental study of a compact cooling system with heat pipes for powerful LED matrices |
| title_full_unstemmed | Experimental study of a compact cooling system with heat pipes for powerful LED matrices |
| title_short | Experimental study of a compact cooling system with heat pipes for powerful LED matrices |
| title_sort | experimental study of a compact cooling system with heat pipes for powerful led matrices |
| topic | led lighting device heat pipe cooling system computer simulation experimental simulation |
| url | http://tkea.com.ua/journalarchive/2020_3-4/6.pdf |
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