Intensification of spray cooling by presence of oxides

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F13%3APU103194" target="_blank" >RIV/00216305:26210/13:PU103194 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Intensification of spray cooling by presence of oxides
Original language description
Spray cooling is a common technique used in continuous casting and other metallurgical processes where controlled temperature regimes are required. Cooling intensity is primarily affected by spray parameters such as pressure and coolant impingement density. Although not well known, thin layers of oxides can significantly modify the cooling intensity. This effect is dominant in the cooling of steel surfaces at high surface temperatures. Experimental investigation comparing the cooling of scale-free surfaces and oxidized surfaces show a difference of 50-80% in the cooling intensity. Even a scale layer of several microns can significantly modify the cooling intensity. It is not obvious but the scale layer can, in some specific cases, increase the coolingintensity. A low thermal conductivity of the oxides makes the cooling more intensive. The paper provides experimental evidence of this fact and details the mechanism of spray cooling with boiling. The Leidenfrost phenomenon and change in
Czech name
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Czech description
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Project
<a href="/en/project/EE2.3.20.0188" target="_blank" >EE2.3.20.0188: Multidisciplinary Team for Research and Development of Heat Processes</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Publication year
2013
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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