Experiments on liquid-vapour phase change between plane liquid surfaces Part I: experiments with water, freon and mercury

Shankar, PN and Deshpande, MD (1988) Experiments on liquid-vapour phase change between plane liquid surfaces Part I: experiments with water, freon and mercury. Technical Report. National Aeronautical Laboratory, Bangalore, India.

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    Abstract

    An experimental set up was designed and constructed to13; measure temperature distributions in the vapour between an13; evaporatinq liquid surface and a cooler condensing surface. The vapour was contained in transparent chambers of diameter 105mm with metal end plates to heat and cool the liquid surfaces.Temperature distributions were measured .x2018;using Chromel-Alumel thermocouples. This report describes the theoretical background for the experiments, the equipment used and the preliminary results obtained with water, Freon 113 and mercury. The results obtained generally qualitatively conform with the theoretical13; predictions for vapours contaminated with inert gas. The results suggest that much higher levels of purity will have to be achieved if the anomalous temperature distribution is to be observed, assuming that it exists in nature.

    Item Type: Proj.Doc/Technical Report (Technical Report)
    Uncontrolled Keywords: Phase change;Anomalous temperature distribution
    Subjects: ENGINEERING > Fluid Mechanics and Thermodynamics
    Division/Department: Fluid Dynamics, Fluid Dynamics
    Depositing User: M/S ICAST NAL
    Date Deposited: 07 Nov 2006
    Last Modified: 24 May 2010 09:52
    URI: http://nal-ir.nal.res.in/id/eprint/3170

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