Intensification of spray cooling by presence of oxides

Kód výsledku v 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>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Intensification of spray cooling by presence of oxides

Popis výsledku v původním jazyce

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

Název v anglickém jazyce

Intensification of spray cooling by presence of oxides

Popis výsledku anglicky

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

Druh

D - Stať ve sborníku

CEP obor

JG - Hutnictví, kovové materiály

OECD FORD obor

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Projekt

<a href="/cs/project/EE2.3.20.0188" target="_blank" >EE2.3.20.0188: Multidisciplinární tým pro výzkum a aplikace tepelných procesů</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2013

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Oceláři

ISBN

978-80-87294-37-6

ISSN

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e-ISSN

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Počet stran výsledku

5

Strana od-do

113-118

Název nakladatele

Tanger spol. s.r.o.

Místo vydání

Ostrava

Místo konání akce

Karlova Studánka

Datum konání akce

4. 4. 2013

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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