Abstract
An experimental work was carried out on the condensation of vapours of immiscible liquids in which the mixture is removed further away from the eutectic conditions. The condensation took place on the outside of a cooled horizontal copper tube. Mixtures of organic vapours in steam were studied. These mixtures, being toluene, n-heptane, cyclohexane, and trichloroethylene with water, were rich in steam. The condensate composition, as well as vapour composition, of the organic increased along the condenser length, from the inlet towards the outlet. Heat and mass transfer rates increased in the same direction. It was found that the water-rich condensate did not give a higher condensate film coefficient. Condensate flow pattern was determined experimentally. In systems where the density ratio of the liquids, organic to water less than one, a standing drop pattern was observed, when this is greater than one, channeling flow is the main feature. The surface characteristics of tube, condensate composition and condensation rate, and buoyancy forces are the most likely parameters that affect the condensate flow. However, the way in which these parameters affect the pattern is not well understood.
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© 1988 Kluwer Academic Publishers
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Tutkun, O. (1988). Condensate Flow Pattern of Immiscible Liquid Mixtures. In: Kakaç, S., Bergles, A.E., Fernandes, E.O. (eds) Two-Phase Flow Heat Exchangers. NATO ASI Series, vol 143. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-2790-2_9
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DOI: https://doi.org/10.1007/978-94-009-2790-2_9
Publisher Name: Springer, Dordrecht
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