Shell and tube heat exchanger tube configuration
Shell and tube heat exchanger tube configuration
(OP)
Hi all,
Q1)I need to know the selection basis of (1) traiangular (2) rotated triangular (3) square (4) rotated square tubes patterns of shell and tube heat exchangers.
Q2) When to use TEMA style "B" "C" and "D" style backing ring. I have always seem style "A" being used. On what basis are these backing ring styles selected??
Q1)I need to know the selection basis of (1) traiangular (2) rotated triangular (3) square (4) rotated square tubes patterns of shell and tube heat exchangers.
Q2) When to use TEMA style "B" "C" and "D" style backing ring. I have always seem style "A" being used. On what basis are these backing ring styles selected??





RE: Shell and tube heat exchanger tube configuration
Same as you, I have only seen style A for backing rings so I cannot make a recommendation on this one.
Regards.
RE: Shell and tube heat exchanger tube configuration
RE: Shell and tube heat exchanger tube configuration
RE: Shell and tube heat exchanger tube configuration
Plus what would be the selection criteria for triangular and rotated triangular??
RE: Shell and tube heat exchanger tube configuration
RE: Shell and tube heat exchanger tube configuration
Style B, C, D backing rings are generally usable on any floating head unit. Style B may have larger required thickness than other styles, see the equations in RCB-5.141. Really, it is designers choice, but I have rarely seen other than style A used.
Regards,
Mike
The problem with sloppy work is that the supply FAR EXCEEDS the demand
RE: Shell and tube heat exchanger tube configuration
See http://chemical-eng-world.blogspot.com.ar/2013/05/....
Regards
r6155
RE: Shell and tube heat exchanger tube configuration
Number of tubes between squared and rotated squared pattern is different, but it is a small difference.
When you design a heat echanger the goal is to get the smaller unit to do a given work (heat load). The primary "enemy" of designers is pressure drop, the lower allowable pressure drop the larger size of unit. You need to identify the "controlling" stream and that is the stream that will give you the smaller heat transfer coefficient, if this stream is in Shell side and need cleaning, the choices will be squared or squared rotated array only, this is true for Shell and tube exchangers.
Regards.
RE: Shell and tube heat exchanger tube configuration