Finned heat transfer tube with porous boiling surface and method

Details Finned heat transfer tube with porous boiling surface and method Finned heat transfer tube with porous boiling surface and method

1978-01-09

1980-01-08

Richter, Sheldon Jay

Heat exchange

With coated, roughened or polished surface

165DIG8, 62527, F28F 1318

Patent

active

041824121

ABSTRACT:
The invention relates to finned heat transfer tubes and to a method for impoving the heat transfer properties in boiling liquids of such tubes by plating the tubes in an electroplating bath containing conductive particles such as graphite powder to produce a porous plated surface. The tips of the fins are covered before plating with a non-conductive coating to prevent plating of the tips. The non-conductive coating can be dissolved away or mechanically removed after plating.

REFERENCES:
patent: 1879140 (1932-09-01), Edwards
patent: 2368403 (1945-01-01), Barnes
patent: 2455457 (1948-12-01), Whitfield et al.
patent: 2713997 (1955-07-01), Ruckstell
patent: 3884772 (1975-05-01), Shiga
patent: 4120994 (1978-10-01), Inoue

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