The paper presents data on the heat exchange extended surfaces application and convective and radiative heat exchange intensification. One of the most effective methods of heat transfer intensifying is using the regularly positioned ridges (corrugated surface) in the pipe, which provide heat exchange area increasing and are the turbulent excitations generation sources additionally to the already existing natural excitations in the flow. The use of the ellipse cross section with the cross corrugation makes it possible to improve the furnace heat reception intensity by more than 5-5.5% as compared to the furnace with the ellipse cross section and smooth inner surface.
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