Tubesheet method of calculation

[LY.Yan]

Dear All,
I have a replacement job with one tube-sheet integral to both sides and the other tube-sheet integral to shell and extended flange. The extended flange tube-sheet is attached to vessel B which is not being replaced. Both tube-sheets are of different thickness and different boundary conditions. I am trying to keep to the original design which is a requirement of client but i need advice on approach of calculation. It seems that UHX is not applicable and i need to comply to design code ASME section VIII,DIV 1.
Thank you.

Yours Sincerely
L.Y

 

[SnTMan]

LY.Yan, I suspect this design could be made under past TEMA rules. It is clearly not within Part UHX scope. You could perhaps employ TEMA rules under U-2(g), but I am not familiar with current rules of the same.

Opinions?

Regards,

Mike

The problem with sloppy work is that the supply FAR EXCEEDS the demand

 

[r6155]

If you try to keep the original design you don't need any calculations. You need to use the same dimensions and the same material.
I don't know why the replacement.

Regards

 

[LY.Yan]

Dear SntMan & r6155,
Thank you for your replies and i am really appreciative of the advice I receive through this forum. The method of going by U-2(g) and using Tema calculations has been accepted. Thank you!

Yours Sincerely,
L.Y