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  • Maximum Heat Flux in Relation to Quenching of a High Temperature Surface with Liquid Jet Impingement

    Author(s)
    Mozumder, Aloke Kumar
    Monde, Masanori
    Woodfield, Peter Lloyd
    Islam, Md Ashraful
    Griffith University Author(s)
    Woodfield, Peter L.
    Year published
    2006
    Metadata
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    Abstract
    Experimental investigation has been conducted for quenching of hot cylindrical blocks made of copper, brass and steel with initial block temperature 250-400 àby a subcooled water jet of diameter of 2 mm. The subcooling was from 5 to 80 K and the jet velocity was from 3 to 15 m/s. After impingement, the jet stagnates for a certain period of time in a small region near the centre and then the wetting front starts moving outwards. During this movement, when the surface temperature at the wetting front drops to 120-200 ì the surface heat flux reaches its maximum value due to forced convection nucleation boiling. The maximum heat ...
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    Experimental investigation has been conducted for quenching of hot cylindrical blocks made of copper, brass and steel with initial block temperature 250-400 àby a subcooled water jet of diameter of 2 mm. The subcooling was from 5 to 80 K and the jet velocity was from 3 to 15 m/s. After impingement, the jet stagnates for a certain period of time in a small region near the centre and then the wetting front starts moving outwards. During this movement, when the surface temperature at the wetting front drops to 120-200 ì the surface heat flux reaches its maximum value due to forced convection nucleation boiling. The maximum heat flux is a strong function of the position on the hot surface, jet velocity, block material properties and jet subcooling. A new correlation for maximum heat flux is proposed.
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    Journal Title
    International journal of heat and mass transfer
    Volume
    49
    Issue
    17-18
    DOI
    https://doi.org/10.1016/j.ijheatmasstransfer.2006.01.048
    Subject
    Mechanical Engineering not elsewhere classified
    Mathematical Sciences
    Physical Sciences
    Engineering
    Publication URI
    http://hdl.handle.net/10072/58206
    Collection
    • Journal articles

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