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A surface cooler for turbomachines includes an inner layer and an outer layer disposed adjacent to the inner layer and including a metal foam, a carbon foam, or a combination thereof, wherein the metal foam, the carbon foam or a combination thereof is configured to augment heat transfer and enhance

A surface cooler for turbomachines includes an inner layer and an outer layer disposed adjacent to the inner layer and including a metal foam, a carbon foam, or a combination thereof, wherein the metal foam, the carbon foam or a combination thereof is configured to augment heat transfer and enhance acoustic absorption. Further, the outer layer includes a plurality of fins, wherein the plurality of fins are configured to augment heat transfer and enhance acoustic absorption, and wherein the plurality of fins includes metal foam, a carbon foam, or a combination thereof.

대표청구항 ▼

1. A surface cooler comprising: an inner layer; andan outer layer disposed adjacent to the inner layer and comprising a metal foam, a carbon foam, or a combination thereof, wherein the metal foam, the carbon foam or a combination thereof is configured to augment heat transfer and enhance acoustic ab

1. A surface cooler comprising: an inner layer; andan outer layer disposed adjacent to the inner layer and comprising a metal foam, a carbon foam, or a combination thereof, wherein the metal foam, the carbon foam or a combination thereof is configured to augment heat transfer and enhance acoustic absorption, wherein the outer layer comprises a plurality of fins and the plurality of fins comprises a metal foam, a carbon foam, or a combination thereof. 2. The surface cooler of claim 1, further comprising a plurality of tubes disposed in the inner layer, wherein the plurality of tubes are configured to carry fluid to be cooled. 3. The surface cooler of claim 1, wherein the inner layer comprises a solid metal. 4. The surface cooler of claim 1, wherein the inner layer comprises a metal foam, a carbon foam or a combination thereof. 5. The surface cooler of claim 1, further comprising a trailing edge, a leading edge, or a combination thereof, disposed on one or more ends of the plurality of fins. 6. The surface cooler of claim 5, wherein the trailing edge, the leading edge or a combination thereof are configured to cover at least a portion of an edge of the plurality of fins. 7. The surface cooler of claim 5, wherein the trailing edge, the leading edge, or a combination thereof comprise a metal. 8. The surface cooler of claim 1, wherein the outer layer comprise a carbon foam having a thermal conductivity in a range of from 150 W/m·K to 390 W/m·K. 9. The surface cooler of claim 1, wherein the outer layer comprises an aluminum foam having a thermal conductivity of 189 W/m·k. 10. The surface cooler of claim 1, wherein the outer layer has a porosity in a range of 75% to 95% of the volume of the outer layer. 11. The surface cooler of claim 1, wherein the outer layer is a closed-cell foam. 12. The surface cooler of claim 1, wherein the outer layer is an open-celled foam. 13. The surface cooler of claim 1, wherein the outer layer comprises gas-filled pores. 14. A method of forming a surface cooler, comprising: forming an inner layer;forming an outer layer adjacent to the inner layer, wherein the outer layer comprises a metal foam, a carbon foam, or a combination thereof, and wherein the metal foam, the carbon foam, or a combination thereof is configured to augment heat transfer and enhance acoustic absorption and machining the outer layer to form a plurality of fins, wherein the fins are configured to augment heat transfer and acoustic absorption. 15. The method of claim 14, further comprising disposing a plurality of tubes in the inner layer, wherein the plurality of tubes are configured to carry fluid to be cooled. 16. The method of claim 14, wherein the inner layer comprises a solid metal. 17. The method of claim 14, wherein the inner layer comprises a metal foam, a carbon foam, or a combination thereof. 18. The method of claim 14, further comprising disposing the surface cooler along an outer wall of a turbomachine. 19. The method according to claim 14, wherein the outer layer has a porosity in a range of 75% to 95% of the volume of the outer layer. 20. The method according to claim 14, wherein the outer layer is an open-celled foam. 21. The method according to claim 14, wherein the outer layer comprises gas-filled pores. 22. An engine comprising: a core engine; anda surface cooler according to claim 1. 23. The engine of claim 22, wherein the surface cooler is disposed adjacent to a nacelle wall of the engine. 24. The engine of claim 22, wherein the surface cooler is disposed adjacent to an inner wall of the engine.