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UBC Theses and Dissertations

Direct contact, liquid-liquid heat transfer to a vapourizing, immiscible drop. Adams, Arthur Edward Steele


This thesis presents a study of some of the factors affecting direct contact, liquid-liquid heat transfer from a continuous phase of 0.0%, 56.02%, 73.07%, and 77.06% glycerine-water solutions to a dispersed phase, which is vapourizing, of isopentane or cyclopentane. An average heat transfer coefficient based on the initial area, the total evaporation time, the total heat transferred, and the .temperature driving force at the end of evaporation was calculated. This coefficient was correlated to the parameters of the systems by the dimensionless groups of continuous phase Prandtl number, dispersed phase Prandtl number, and a viscosity ratio. The results are compared to the works of Klipstein, Sideman and Prakash. A comparison made between the photographic and dilatometric method of volume measurement showed the dilatometric method to be the best for this type of work.

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