IMPROVEMENTS IN OR RELATING TO METHODS OF MANUFACTURING PROTECTIVE CANS FOR NUCLEAR REACTOR FUEL ELEMENTS

Patent · Wed Jan 11 04:00:00 EST 1961

OSTI ID:4113899

Acton, E W.V.; Hartnell-Beavis, M C

Finned tubes with a combination of inclined (helical) and longitudinal fins may be fabricated from tubes having integral fins, e.g., finned tubes formed by extrusion; thus, thermal barriers resulting from joining fins to tubes which may impair the heat-transfer efficiency are avoided. The fabrication is performed on tubes with integral fins either of the longitudinal or helical (the inclination being the same for all fins) variety in this manner: a series of transverse cuts is made in the shorter fins at equal intervals along the tube length, and each fin segment thus formed is twisted at the top so that its tip is inclined or longitudinal to the tube, depending on whether the fins were originally longitudinal or inclined. Thus, an integral finned tube may be made which has improved heat transfer and reduced tendency to bow under reactor irradiation and thus is particularly suitable for containing reactor fuel elements. (D.L.C.)

• Research Organization: Originating Research Org. not identified
• NSA Number: NSA-15-007744
• OSTI ID: 4113899
• Report Number(s): GB 858294
• Country of Publication: United Kingdom
• Language: English

Related Subjects

CONFIGURATION
DEFORMATION
EXTRUSION
FABRICATION
FINS
FUEL CANS
HEAT TRANSFER
IRRADIATION
METALS, CERAMICS, AND OTHER MATERIALS
TUBES