Heat-Exchanger Tube-Sheet Design—3. U-Tube and Bayonet-Tube Sheets

[+] Author and Article Information
Karl A. Gardner

The Griscom-Russell Company, Massillon, Ohio

J. Appl. Mech 27(1), 25-33 (Mar 01, 1960) (9 pages) doi:10.1115/1.3643930 History: Received March 26, 1958; Revised June 24, 1959; Online September 16, 2011


Tube sheets of U-tube and bayonet-tube exchangers differ from those of floating-head exchangers in that they receive no external support from the staying or column action of the tubes. The strengthening effect of tube-bending reaction is here investigated, evaluated quantitatively, and presented in the form of simple design factors. These factors are functions of a parameter ua , a measure of the relative “barreling” rigidity of the tube bundle as compared to the flexural rigidity of the tube sheet. With stiff tubes and flexible tube sheets (high ua ) the reinforcement due to tube bending is considerable and, in the central region of the tube sheet, the deflection and curvature are essentially independent of any tube-sheet property. At low ua the benefit gained is negligible.

Copyright © 1960 by ASME
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