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EnglishThis paper presents results for FC72 and FC87 saturated and subcooled nucleate pool boiling, at atmospheric pressure, on a downward facing surface and in confined spaces between a heated copper disk (diameter 12 mm and thickness 2 mm) and an unheated surface, for distances varying between 0.2 and 13 mm. At saturated boiling and low heat flux (645 kW/m2) a decrease in the distance between the plates causes an enhancement of the boiling. At subcooled boiling the results show that the heat transfer coefficient decreases with a reduction in the distance between the plates. A visualization of the subcooled boiling shows the effect of confinement and heat flux on the liquid–vapor configuration.
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| Titolo: | Confined boiling of FC72 and FC87 on downward facing heating copper disk, | |
| Autori: | ||
| Data di pubblicazione: | 2004 | |
| Rivista: | ||
| Abstract: | This paper presents results for FC72 and FC87 saturated and subcooled nucleate pool boiling, at atmospheric pressure, on a downward facing surface and in confined spaces between a heated copper disk (diameter 12 mm and thickness 2 mm) and an unheated surface, for distances varying between 0.2 and 13 mm. At saturated boiling and low heat flux (645 kW/m2) a decrease in the distance between the plates causes an enhancement of the boiling. At subcooled boiling the results show that the heat transfer coefficient decreases with a reduction in the distance between the plates. A visualization of the subcooled boiling shows the effect of confinement and heat flux on the liquid–vapor configuration. | |
| Handle: | http://hdl.handle.net/11567/209952 | |
| Appare nelle tipologie: | 01.01 - Articolo su rivista |
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