Internal Coil

[torsani]

Hi

Do ASME code show rules for design of internal coil (toroidal shell) subject to internal and external pressure?

Thanks

Torsani

 

[JoeTank]

Is your toroid a pipe or tube rolled to a circular shape? if yes, ASME does not cover the case you describe. In the absence of anything else, I would obtain a first estimate of its stability by using the external pressure procedures of ASME VIII. I would check it as a cylinder of infinite length using the ASME methods. After that I would continue checking around, possibly conferring with companies that manufacture heating coils.

Steve Braune
Tank Industry Consultants

http://www.tankindustry.com