Shell and Tube Exchanger Tube Lenght To Shell Diameter

[chemdesign]

Can anyone suggest the maximum tube length to shell diameter ratio that would make bundle handling difficult from the bundle being "too springy"? I have seen a number of 15:1, am wondering if anything higher is unreasonable. Thanks.

 

[MJCronin]

chem...

This is an interesting question, but your answer would depend somewhat on the method of support for a removable bundle. A tube bundle could be removed and supported by several slings extending from a long "strongback (lifting beam)

I suggest that the maximum shell lentgh to diameter ratio be controlled by a reasonable pressure drop through the unit (typically 10 psid for the shell or tube side). This psid maximum limits your dimension ratio to about 8 to 10 in most cases.

My opinion only...


-MJC

 

[Longinthetooth]

We have used bundles 15 ins dia by 36 ft long and 18 ins dia by 40 ft long for high pressure applications without any problems