A high capacity self-priming counter-gravity heat pipe: Modeling and experimental demonstration
| Autor: | Todd A. Jankowski, Martin J. Ward, Robert A. Zimmerman, Stephen J. Obrey, Robert S. Reid, James A. Stewart, Justin D. Simpson, Lydia Wermer |
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| Rok vydání: | 2018 |
| Předmět: |
Fluid Flow and Transfer Processes
Self priming Materials science Capillary action 020209 energy Mechanical Engineering education 020206 networking & telecommunications 02 engineering and technology Mechanics Condensed Matter Physics Priming (steam locomotive) Heat pipe Homogeneous Header 0202 electrical engineering electronic engineering information engineering Low resistance |
| Zdroj: | International Journal of Heat and Mass Transfer. 125:1369-1378 |
| ISSN: | 0017-9310 |
| DOI: | 10.1016/j.ijheatmasstransfer.2018.04.161 |
| Popis: | We mathematically model, fabricate, and test a counter-gravity heat pipe with a unique header and artery system. The header and artery system augments the capillary limit of traditional heat pipes with homogeneous wicks by incorporating a low resistance pathway for liquid return from the condenser to the evaporator. Unlike other composite wick designs for low resistance liquid return to the evaporator, the header and artery system enables priming of the wick structure for counter-gravity start-up. We tested a stainless steel-water heat pipe with the header and artery system. This header and artery heat pipe demonstrated reliable counter-gravity start-up with a capillary limit augmentation of over four times that of the same heat pipe with a conventional homogeneous wick. This result is in agreement with a theory developed by Chisholm (1978). |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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