FIELD: heating system.
SUBSTANCE: intensive steam condenser with a contrast and gradient wetting is made in the form of a cooled cylinder, on the outer surface of which alternating transverse annular strips with hydrophobic coating with a gradient wetting angle and strips with hydrophilic coating are applied. Moreover, the wetting angle of the surface with the hydrophobic coating decreases from the line of the maximum value of the wetting angle to the line of the minimum value of the wetting angle.
EFFECT: invention allows to increase the intensity of condensation due to the application of special coatings with gradient wetting, and due to the reduction in the hydraulic resistance during the flow of a two-phase flow along the condensation surface.
3 dwg
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