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Enhanced heat transfer surface for cast-in-bump-covered cooling surfaces and methods of enhancing heat transfer
Enhanced heat transfer surface for cast-in-bump-covered cooling surfaces and methods of enhancing heat transfer
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机译：用于凸点覆盖的冷却表面的增强传热表面以及增强传热的方法
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摘要
An annular turbine shroud separates a hot gas path from a cooling plenum containing a cooling medium. Bumps are cast in the surface on the cooling side of the shroud. A surface coating overlies the cooling side surface of the shroud, including the bumps, and contains cooling enhancement material. The surface area ratio of the cooling side of the shroud with the bumps and coating is in excess of a surface area ratio of the cooling side surface with bumps without the coating to afford increased heat transfer across the element relative to the heat transfer across the element without the coating.
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