Summary
In this work, we report the fabrication and thermal performance evaluation of flexible heat pipes prepared by using a fluororubber tube as the connector in the adiabatic section and using strong base treated hydrophilic copper meshes as the wick structure. Deionized water was chosen as working fluid and three different filling ratios (10%, 20%, and 30%) of working fluid were loaded into the heat pipe to investigate its impact on thermal performance. The fabricated heat pipes can be easily bended from 0° to 180° in the horizontal operation mode and demonstrated consistently low thermal resistances after repeated bending. It was found that with optimized amount of working fluid, the thermal resistance of flexible heat pipes increased with larger bending angles. Theoretical analysis reveals that bending disturbs the normal vapor flow from evaporator to condenser in the heat pipe, thus leads to increased liquid–vapor interfacial thermal resistance in the evaporator section. The flexible heat pipes have been successfully applied for thermal control of foldable electronic devices showing superior uniform heat-transfer performance.
Details
- Original title: Fabrication and performance evaluation of flexible heat pipes for potential thermal control of foldable electronics.
- Record ID : 30016886
- Languages: English
- Source: Applied Thermal Engineering - vol. 95
- Publication date: 2016/02/25
- DOI: http://dx.doi.org/10.1016/j.applthermaleng.2015.11.078
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Indexing
- Themes: Evaporators, condensers and other heat exchangers
- Keywords: Thermal property; Heat pipe; Rubber; Design; Performance; Expérimentation
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- Source: 2012 Purdue Conferences. 14th International Refrigeration and Air-Conditioning Conference at Purdue.
- Formats : PDF
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- Source: 2022 Purdue Conferences. 19th International Refrigeration and Air-Conditioning Conference at Purdue.
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- Author(s) : HUANG Z. W., HWANG Y. H., AUTE V., et al.
- Date : 2016/07/11
- Languages : English
- Source: 2016 Purdue Conferences. 16th International Refrigeration and Air-Conditioning Conference at Purdue.
- Formats : PDF
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- Author(s) : SAEED M., KIM M. H.
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- Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 69
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- Author(s) : LUNSFORD K. M.
- Date : 1996/07
- Languages : English
- Source: Hydrocarbon Processing - vol. 75 - n. 7
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