HEAT EXCHANGE SURFACE Russian patent published in 2022 - IPC F28F3/04 

FIELD: heat engineering.

SUBSTANCE: invention relates to the field of heat engineering and can be applied in heat exchangers used in various sectors of the national economy. The invention consists in making a heat exchange surface for intensifying heat transfer during a turbulent flow of a coolant in the form of periodically applied recesses, which are made in the form of a boomerang, consisting of two halves of a spherical recess with a diameter b, connected by a cylindrical torus-shaped segment of length l=l₁+l₂ in such a way that the condition is realized that the tangent to the segment of length l₁ made an angle =45° with respect to the direction of flow at the beginning of the recess and an angle of 0° to the segment of the recess of length l₂.

EFFECT: invention increases the thermal and thermohydraulic efficiency of the heat exchange surface.

1 cl, 5 dwg