FIELD: heating system.
SUBSTANCE: cooled sidewall of the feather, burner or combustion chambers for separating the hot gas flow path of the gas turbine from the cooling stream flowing in the main direction that is parallel to the side wall surface comprises at least one turbulent rib extending from the side wall to the cooling stream. The turbulent rib contains a fillet at the base of the turbulent rib. The fillet on at least one side of the turbulent rib extends into the side wall to form a notch in the side wall which results in a local reduction in side wall thickness, adjacent to the turbulent rib.
EFFECT: increasing the cooling efficiency.
15 cl, 7 dwg
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