초록 ▼

A method and a system for a heat exchanger assembly are provided. The heat exchanger assembly includes one or more arcuate heat exchanger segments each including an inlet header configured to extend circumferentially about a circumference of an inner surface of a fluid flow duct, and an outlet heade

A method and a system for a heat exchanger assembly are provided. The heat exchanger assembly includes one or more arcuate heat exchanger segments each including an inlet header configured to extend circumferentially about a circumference of an inner surface of a fluid flow duct, and an outlet header configured to extend circumferentially about the fluid flow duct. The heat exchanger assembly also includes a first serpentine heat exchanger tube extending between the inlet header and the outlet header and including a series of flow path segments having a gradually changing direction defined by a bend radius of the tube such that a direction of flow through the serpentine heat exchanger tube reverses between the inlet and the outlet headers and a second serpentine heat exchanger tube extending between the inlet header and the outlet header, the second serpentine heat exchanger tube co-planar with the first serpentine heat exchanger tube.

대표청구항 ▼

1. A heat exchanger assembly comprising: one or more arcuate heat exchanger segments, each of the one or more heat exchanger segments comprising:an inlet header configured to extend circumferentially about at least a portion of a circumference of an inner surface of a fluid flow duct;an outlet heade

1. A heat exchanger assembly comprising: one or more arcuate heat exchanger segments, each of the one or more heat exchanger segments comprising:an inlet header configured to extend circumferentially about at least a portion of a circumference of an inner surface of a fluid flow duct;an outlet header configured to extend circumferentially about at least a portion of the circumference of the inner surface of the fluid flow duct and spaced axially apart from said inlet header in a direction of fluid flow through the fluid flow duct;a first serpentine heat exchanger tube extending between said inlet header and said outlet header, the serpentine heat exchanger tube comprising a series of flow path segments having a gradually changing direction defined by a bend radius of the tube such that a direction of flow through said serpentine heat exchanger tube reverses between said inlet and said outlet headers; anda second serpentine heat exchanger tube extending between said inlet header and said outlet header, said second serpentine heat exchanger tube co-planar with said first serpentine heat exchanger tube. 2. The heat exchanger assembly of claim 1, wherein a first segment of said one or more arcuate heat exchanger segments is configured to be coupled to a second segment of said one or more arcuate heat exchanger segments. 3. The heat exchanger assembly of claim 1, wherein an end of said inlet header of a first segment of said one or more arcuate heat exchanger segments is configured to be coupled to a complementary end of said inlet header of a second segment of said one or more arcuate heat exchanger segments. 4. The heat exchanger assembly of claim 1, wherein an end of said outlet header of a first segment of said one or more arcuate heat exchanger segments is configured to be coupled to a complementary end of said outlet header of a second segment of said one or more arcuate heat exchanger segments. 5. The heat exchanger assembly of claim 1, wherein at least one of said inlet header and said outlet header comprises a generally circular manifold. 6. The heat exchanger assembly of claim 1, wherein at least one of said inlet header and said outlet header comprises a channel having a U-shaped cross-section, a first flange extending in a first axial direction, and a second flange extending in a second opposite axial direction. 7. The heat exchanger assembly of claim 6, wherein the one or more arcuate heat exchanger segments are configured to couple to an inner surface of the fluid flow duct using said flanges. 8. The heat exchanger assembly of claim 6, wherein the channel is configured to receive a flow of fluid from apertures extending through the fluid flow duct. 9. The heat exchanger assembly of claim 1, wherein the bend radius of the first serpentine heat exchanger tube is a different radius than the bend radius of the second serpentine heat exchanger tube to permit the first and second heat exchanger tubes to be nested in co-planar alignment. 10. A method of assembling a modular radial tubular heat exchanger, said method comprising: forming one or more arcuate heat exchanger segments, each heat exchanger segment formed by:coupling first ends of a one or more serpentine heat exchanger tubes to a first header to partially form a heat exchanger segment assembly, the heat exchanger tubes arranged in groups of co-planar heat exchanger tubes; andcoupling second ends of the one or more serpentine heat exchanger tubes to a second header to form the heat exchanger segment; andcoupling each of the one or more heat exchanger segments to an inner surface of a fluid flow duct, each of the one or more heat exchanger segments axially aligned with two rows of apertures extending through the fluid flow duct, each row of apertures including a plurality of circumferentially-spaced apertures. 11. The method of claim 10, wherein coupling first ends of a plurality of serpentine heat exchanger tubes to a first header comprises coupling first ends of a plurality of serpentine heat exchanger tubes to a first U-shaped pocket plate, the pocket plate comprising a flange circumscribing the pocket plate. 12. The method of claim 10, wherein coupling first ends of a plurality of serpentine heat exchanger tubes to a first header comprises coupling first ends of a plurality of serpentine heat exchanger tubes to a first generally circular piping header. 13. The method of claim 10, further comprising mounting each of the one or more heat exchanger segments individually to the inner surface of the fluid flow duct. 14. A gas turbine engine comprising: a core gas turbine engine having an axis of rotation;a fan casing substantially circumscribing said core gas turbine engine; anda heat exchanger assembly positioned within said fan casing, said heat exchanger assembly comprising: one or more arcuate heat exchanger segments, each of the one or more heat exchanger segments comprising:an inlet header configured to extend circumferentially about at least a portion of a circumference of an inner surface of a fluid flow duct;an outlet header configured to extend circumferentially about the portion spaced axially apart from said inlet header in a direction of fluid flow through the fluid flow duct;a first serpentine heat exchanger tube extending between said inlet header and said outlet header, the serpentine heat exchanger tube comprising a series of flow path segments having a gradually changing direction defined by a bend radius of the tube such that a direction of flow through said serpentine heat exchanger tube reverses between said inlet and said outlet headers; anda second serpentine heat exchanger tube extending between said inlet header and said outlet header, said second serpentine heat exchanger tube co-planar with said first serpentine heat exchanger tube. 15. The gas turbine engine of claim 14, wherein a first segment of said one or more arcuate heat exchanger segments is configured to be coupled to a second segment of said one or more arcuate heat exchanger segments. 16. The gas turbine engine of claim 14, wherein at least one of said inlet header and said outlet header comprises a generally circular manifold. 17. The gas turbine engine of claim 14, wherein at least one of said inlet header and said outlet header comprises a channel having a U-shaped cross-section, a first flange extending in a first axial direction, and a second flange extending in a second opposite axial direction. 18. The gas turbine engine of claim 17, wherein the one or more arcuate heat exchanger segments are configured to couple to an inner surface of the fluid flow duct using said flanges. 19. The gas turbine engine of claim 17, wherein the channel is configured to receive a flow of fluid from apertures extending through the fluid flow duct. 20. The gas turbine engine of claim 14, wherein the bend radius of the first serpentine heat exchanger tube is a different radius than the bend radius of the second serpentine heat exchanger tube to permit the first and second heat exchanger tubes to be nested in co-planar alignment.