Tie-in Spool Connection between Riser and Pipeline

[RAJATH]

Thank you for the reply.

Temperature-91 Deg and size is 12". Whether I should increase the CWC in only spool or in the whole pipeline so that whole expansion and Vitrual Anchor Length is decreased?.

[tokiero]

Dear RAJATH
To better answer your question we need to know pipeline scheme. Could you provide us with it?
Is 755 mm too much? Maybe it is a mistake?

Considering your question about incresing thickness of concrete shell - I may assume that it could not give you expected result.

Regards,
J.V.