Physical concept and calculation of boiling point in a pulsating heat pipe
LED development is accompanied by the need to ensure a constructive solution for the thermal conditions' problem. For this purpose one can use pulsating heat pipes (PHP), that operate more efficiently after the start of heat carrier boiling. This article describes the physical representation an...
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| Format: | Article |
| Language: | English |
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Politehperiodika
2014-06-01
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| Series: | Tekhnologiya i Konstruirovanie v Elektronnoi Apparature |
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| Online Access: | https://tkea.com.ua/index.php/journal/article/view/324 |
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| _version_ | 1850261217482899456 |
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| author | A. N. Naumova V. Yu. Kravets Yu. Ye. Nikolaenko |
| author_facet | A. N. Naumova V. Yu. Kravets Yu. Ye. Nikolaenko |
| author_sort | A. N. Naumova |
| collection | DOAJ |
| description | LED development is accompanied by the need to ensure a constructive solution for the thermal conditions' problem. For this purpose one can use pulsating heat pipes (PHP), that operate more efficiently after the start of heat carrier boiling. This article describes the physical representation and formula that allows determining the boiling point, which is a lower bound of the PHP effective operating range. It is shown that the main factors influencing the required heat flow are driving capillary pressure and velocity of the vapour bubble. The formula was obtained for the closed PHP made of the copper with water as a heat carrier. Information about this heat flux can be used for further design of cooling systems for heat-sensitive elements, such as LED for promising lighting devices. |
| format | Article |
| id | doaj-art-6a0b38b7589e47f0a9aeb91c86e9c6cf |
| institution | OA Journals |
| issn | 2225-5818 2309-9992 |
| language | English |
| publishDate | 2014-06-01 |
| publisher | Politehperiodika |
| record_format | Article |
| series | Tekhnologiya i Konstruirovanie v Elektronnoi Apparature |
| spelling | doaj-art-6a0b38b7589e47f0a9aeb91c86e9c6cf2025-08-20T01:55:28ZengPolitehperiodikaTekhnologiya i Konstruirovanie v Elektronnoi Apparature2225-58182309-99922014-06-012–3424710.15222/TKEA2014.2-3.42324Physical concept and calculation of boiling point in a pulsating heat pipeA. N. Naumova0V. Yu. Kravets1Yu. Ye. Nikolaenko2NTUU «Kiev politechnic university», Kyiv, UkraineNTUU «Kiev politechnic university», Kyiv, UkraineNTUU «Kiev politechnic university», Kyiv, UkraineLED development is accompanied by the need to ensure a constructive solution for the thermal conditions' problem. For this purpose one can use pulsating heat pipes (PHP), that operate more efficiently after the start of heat carrier boiling. This article describes the physical representation and formula that allows determining the boiling point, which is a lower bound of the PHP effective operating range. It is shown that the main factors influencing the required heat flow are driving capillary pressure and velocity of the vapour bubble. The formula was obtained for the closed PHP made of the copper with water as a heat carrier. Information about this heat flux can be used for further design of cooling systems for heat-sensitive elements, such as LED for promising lighting devices.https://tkea.com.ua/index.php/journal/article/view/324pulsating heat pipemathematic modelboiling pointdriving capillary pressureled |
| spellingShingle | A. N. Naumova V. Yu. Kravets Yu. Ye. Nikolaenko Physical concept and calculation of boiling point in a pulsating heat pipe Tekhnologiya i Konstruirovanie v Elektronnoi Apparature pulsating heat pipe mathematic model boiling point driving capillary pressure led |
| title | Physical concept and calculation of boiling point in a pulsating heat pipe |
| title_full | Physical concept and calculation of boiling point in a pulsating heat pipe |
| title_fullStr | Physical concept and calculation of boiling point in a pulsating heat pipe |
| title_full_unstemmed | Physical concept and calculation of boiling point in a pulsating heat pipe |
| title_short | Physical concept and calculation of boiling point in a pulsating heat pipe |
| title_sort | physical concept and calculation of boiling point in a pulsating heat pipe |
| topic | pulsating heat pipe mathematic model boiling point driving capillary pressure led |
| url | https://tkea.com.ua/index.php/journal/article/view/324 |
| work_keys_str_mv | AT annaumova physicalconceptandcalculationofboilingpointinapulsatingheatpipe AT vyukravets physicalconceptandcalculationofboilingpointinapulsatingheatpipe AT yuyenikolaenko physicalconceptandcalculationofboilingpointinapulsatingheatpipe |