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Tube sheet-Shell side or Tube side

Tube sheet-Shell side or Tube side

Tube sheet-Shell side or Tube side

(OP)
In shell and Tube Heat exchanger Is Tube sheet considered to be the part of shell side or tube side??

Thanks

RE: Tube sheet-Shell side or Tube side

Mechmania,

If you think about which surfaces are wetted (assuming liquids on both sides), it quickly becomes apparent that the tubesheet is wetted by both the tubeside and shellside fluids.  I would say that it is both.

Regards,

Speco

RE: Tube sheet-Shell side or Tube side

When we relaced tube sheets they were always part of the shell and when we replaced the tubes, the sheets were still part of the shell but then maybe I don't understand your question??

RE: Tube sheet-Shell side or Tube side

The tubesheet is a pressure boundary.  When considering the shell side pressure and/or operating conditions, it is part of the shell pressure boundary.  When considering the tube side pressure it is part of the tubeside boundary.

rmw

RE: Tube sheet-Shell side or Tube side

banu...

Why do you care if it is designated as shellside or tubeside ?

As stated above....Its both

I have designed and specified STHEs for many years and have never heard of such a question...

Why is it important to know this ??

  

RE: Tube sheet-Shell side or Tube side

I wish the people who ask questions would particapate more in the discussions!

RE: Tube sheet-Shell side or Tube side

(OP)
Friends, thanks a lot for answering my question!

I was working on brittle fracture analysis of the exchanges.The case was shell side was esxposed to severe negative temperature at worst condition and while tube side was experiencing normal(not very negative) temperature.And I was checking individual component of the exchanger using API 579 to see which component are prone to brittle fracture.

And that is when I came across above question wether to conside Tubesheet on Shell side or Tube side while evaluatiing for brittle fracture?

But then I ended up considering the TS on the side(Shell or Tube) where it will experience the most negative temperature.And it seems to agree with many of yours input.

So thanks  a lot againg for taking time for answering my (may be stupid) question?

Regards,

Mechmani

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