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Steam Bubbles in a Flowing Thin Film   [Title Translation]

Blasenbildung im verdampfenden Rieselfilm   [Other Title]
Rok: 1967
Žánr: Documentary Film
Exteriéry: n/a

Titulky:
Production company: IWF (Göttingen)
First released by: IWF (Göttingen)
Distributor: IWF (Göttingen)
Author: H. Struve


Klíčová slova: Blasenbildung, Flüssigkeitsschichten, Luft in Wasser, Rieselfilmströmung, Rieselfilmströmung, Sieden, Strömung, Verdampferanlage, Verdampfung, Wärmeaustauscher, boiling, evaporation, Flowing thin film, Steam bubbles
In an evaporating trickling film steam bubbles can form by adequate fluid overheating. These occur in quick succession in suitable pittings in the heating surface, are torn away from the surface by the current, swim in or on the trickling film, getting larger until they burst. They blend the film considerably. Heat transfer to the latter is improved by the steam bubbles. In very slow motion the film shows the behaviour of the bubbles with calm and rippled current. The fluid flows on the outside of a heated test tube. Fluid and heating area loads are varied. The effect of a rough tube surface is also shown. With suitably high heating area load a continuous bubble layer occurs, which disperses with more intense overheating.

Version 1
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Aspect: n/a
Minutáž: 6 1/2 min

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Version 2
Jazyková verze: NULL
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Minutáž: 6 1/2 min

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Version 3
Jazyková verze: NULL
Zvuk: n/a
Aspect: n/a
Minutáž: 6 1/2 min

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DĂ©lka: 68 m Request Copy Button
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Copyright Information IWF Institut Wissen und Medien gGmbH
Informace o právech Práva k filmu mohou být poskytnuta