Flat-Plate PHP with Gravity-Independent Performance and High Maximum Thermal Load
In many energy-related applications, components with high heat loads, such as power electronics, play an important role. Pulsating heat pipes (PHPs) are an effective solution to deal with the increasing heat load of these components. In many real-life applications, the PHP must work against gravity...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2023-11-01
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| Series: | Energies |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1996-1073/16/22/7463 |
| _version_ | 1827640012978520064 |
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| author | Markus Winkler Marc Vergez Andreas Mahlke Mathias Gebauer Phillip Müller Christoph Reising Kilian Bartholomé Olaf Schäfer-Welsen |
| author_facet | Markus Winkler Marc Vergez Andreas Mahlke Mathias Gebauer Phillip Müller Christoph Reising Kilian Bartholomé Olaf Schäfer-Welsen |
| author_sort | Markus Winkler |
| collection | DOAJ |
| description | In many energy-related applications, components with high heat loads, such as power electronics, play an important role. Pulsating heat pipes (PHPs) are an effective solution to deal with the increasing heat load of these components. In many real-life applications, the PHP must work against gravity and still be able to operate efficiently. However, the majority of present flat-plate PHP designs do not perform well under this condition. Therefore, this paper presents a flat-plate PHP with a conventional channel design optimized for gravity-independent operation. The PHP was capable of transmitting a heat output of 754 watts in all orientations, while the testing heater in use never exceeded a temperature of 100 °C. No indications of dryout were observed, implying that the maximum thermal load the PHP can handle is even higher. Additionally, three different condenser zone sizes were tested with the PHP. Previously published results indicated that there is a specific range of suitable condenser zone sizes, and performance problems will occur if the condenser zone size falls outside of this range. The findings from this work point in the same direction. |
| first_indexed | 2024-03-09T16:52:02Z |
| format | Article |
| id | doaj.art-b3781316bb9d4c0e99112a895c440a73 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-09T16:52:02Z |
| publishDate | 2023-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-b3781316bb9d4c0e99112a895c440a732023-11-24T14:39:50ZengMDPI AGEnergies1996-10732023-11-011622746310.3390/en16227463Flat-Plate PHP with Gravity-Independent Performance and High Maximum Thermal LoadMarkus Winkler0Marc Vergez1Andreas Mahlke2Mathias Gebauer3Phillip Müller4Christoph Reising5Kilian Bartholomé6Olaf Schäfer-Welsen7Fraunhofer Institute for Physical Measurement Techniques IPM, Georges-Köhler-Allee 301, 79110 Freiburg, GermanyFraunhofer Institute for Physical Measurement Techniques IPM, Georges-Köhler-Allee 301, 79110 Freiburg, GermanyFraunhofer Institute for Physical Measurement Techniques IPM, Georges-Köhler-Allee 301, 79110 Freiburg, GermanyFraunhofer Institute for Machine Tools and Forming Technology IWU, Nöthnitzer Str. 44, 01187 Dresden, GermanyFraunhofer Institute for High Frequency Physics and Radar Techniques FHR, Fraunhoferstraße 20, 53343 Wachtberg, GermanyFraunhofer Institute for High Frequency Physics and Radar Techniques FHR, Fraunhoferstraße 20, 53343 Wachtberg, GermanyFraunhofer Institute for Physical Measurement Techniques IPM, Georges-Köhler-Allee 301, 79110 Freiburg, GermanyFraunhofer Institute for Physical Measurement Techniques IPM, Georges-Köhler-Allee 301, 79110 Freiburg, GermanyIn many energy-related applications, components with high heat loads, such as power electronics, play an important role. Pulsating heat pipes (PHPs) are an effective solution to deal with the increasing heat load of these components. In many real-life applications, the PHP must work against gravity and still be able to operate efficiently. However, the majority of present flat-plate PHP designs do not perform well under this condition. Therefore, this paper presents a flat-plate PHP with a conventional channel design optimized for gravity-independent operation. The PHP was capable of transmitting a heat output of 754 watts in all orientations, while the testing heater in use never exceeded a temperature of 100 °C. No indications of dryout were observed, implying that the maximum thermal load the PHP can handle is even higher. Additionally, three different condenser zone sizes were tested with the PHP. Previously published results indicated that there is a specific range of suitable condenser zone sizes, and performance problems will occur if the condenser zone size falls outside of this range. The findings from this work point in the same direction.https://www.mdpi.com/1996-1073/16/22/7463pulsating heat pipesoscillating heat pipescoolingheat transferthermal resistanceelectronics cooling |
| spellingShingle | Markus Winkler Marc Vergez Andreas Mahlke Mathias Gebauer Phillip Müller Christoph Reising Kilian Bartholomé Olaf Schäfer-Welsen Flat-Plate PHP with Gravity-Independent Performance and High Maximum Thermal Load Energies pulsating heat pipes oscillating heat pipes cooling heat transfer thermal resistance electronics cooling |
| title | Flat-Plate PHP with Gravity-Independent Performance and High Maximum Thermal Load |
| title_full | Flat-Plate PHP with Gravity-Independent Performance and High Maximum Thermal Load |
| title_fullStr | Flat-Plate PHP with Gravity-Independent Performance and High Maximum Thermal Load |
| title_full_unstemmed | Flat-Plate PHP with Gravity-Independent Performance and High Maximum Thermal Load |
| title_short | Flat-Plate PHP with Gravity-Independent Performance and High Maximum Thermal Load |
| title_sort | flat plate php with gravity independent performance and high maximum thermal load |
| topic | pulsating heat pipes oscillating heat pipes cooling heat transfer thermal resistance electronics cooling |
| url | https://www.mdpi.com/1996-1073/16/22/7463 |
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