One of our project having column with reboiler arrangment , due to pr drop calculation no of elbows is limted . piping from reboiler to column shall have very rigid routing ,
If possible to free the reboiler ie with out axial stops and re boiler shall have only simple rest support.

senthil athiban

Athiban

commonly piping routing from re boiler to column is rigid.you should model boundary condition like re boiler in your Caesar model.
if it doesn't work.try cold spring method.

Another option, Reboilers can also be spring supported. You need to be careful to model/capture the "weight" of the reboiler properly. In addition local nozzle flex should be considered at all the nozzles since loads will tend to distribute differently on stiff/flex nozzles. Additional points:

-Avg temp on shell section.
-Operating weight (Fluid height) in reboiler.
-Sometimes designed to slide a bit on slide pads.

For close-coupled reboilers, a hard support does yield acceptable designs given judicious placement of the support lug elevation for vetical type reboilers.

Try simple approaches first, and get more detailed as waaranted.