Abstract
This paper presents the results of studies on the formation of ice on vertical and inclined packings manufactured from a cord of diameters 2 and 5 mm or a wire. Water was sprayed by a rotating disk onto the walls of a pipe of diameter 200 mm where it was cooled and fell on the cord packings without the action of special distributing devices. Periodic protrusions and troughs appeared on the packings just as in the case of formation of icicles. The presence of the cord made it possible to obtain long stalactites as opposed to icicles that grow due to the freezing of their tips and cease to grow at large wetting densities. At the lower parts of the packings tilted at angles of 20–25°, a toothed ice was formed without separation of drops and icicles. The thicknesses of water films and heat transfer coefficients were calculated for air flow across the packings. Good agreement of the results of calculations with corresponding experimental data has been obtained.
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