Liquid-cooled turbine bucket with enhanced heat transfer performance
Patent
·
OSTI ID:6409847
Individual coolant passages in the airfoil portion of a liquid-cooled turbine bucket are each provided with a plurality of inwardly protruding circumferentially-extending crimps or rings located at spaced intervals along each passage, each crimp, protrusion or ring extending along the inner periphery in a plane generally perpendicular to the wall of the coolant passage at that location. The main flow of liquid coolant moving in each such individual passage during turbine operation under the combined influence of centrifugal and Coriolis forces is broken up and dispersed over an enlarged area of the interior of the coolant passage upon encountering the protrusions.
- Assignee:
- General Electric Co.
- Patent Number(s):
- US 4142831
- OSTI ID:
- 6409847
- Country of Publication:
- United States
- Language:
- English
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