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UG-27 or Appendix 1

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BigTank

BigTank

Mechanical
Joined
Sep 24, 2007
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How does Compress determine whether to use UG-27 or Appendix 1 equations for calculating required thicknesses for, say, nozzle reinforcement calculations and unstayed flat head coefficients? I've seen both used in the nozzle reinforcement area calculations in 2 different models of the same vessel.

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And again, are the crickets chirping indicating this is a matter of Code interpretation?

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For design of a shell component (cylinder, head, cone), the shell ID or OD is specified by the user. The corresponding design formula will be used by COMPRESS. Required thickness of a nozzle is always based on the ID formula for a cylinder, regardless of the setting for "Nozzles are entered as outside diameter" (thus the same formula whether nozzle is specified by OD or ID).



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