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Water hammer in pressure vessels

Water hammer in pressure vessels

Water hammer in pressure vessels

(OP)
Hi to everybody,
Congratulations for this forum is quite usefull and interesting!
I'll post a question that arrive me today. A client made a water hammer calculation and found that a pressure vessel will be submitted to full vacuum.
Since this situation is a temporary, how should I calculate this situation?. Is this considered in the ASME Code?
Thanks in advance!

RE: Water hammer in pressure vessels

From liability issue and engineering point of view, I will just design full vacuum to satisfy client since they are the boss, and both you and client can sleep well, no need to argure unless client wants you to prove his point is right or this is lump sum job you want to save cost w/o vacuum design.
Even it will be full vacuum and is temporary, you do need to design for full vacuum. Sudden failure in vacuum will kill the vessel. No need to run the risk. Many vessels will be steamed out temporarily prior to start-up, we do design for partial vacuum due to condensation of steam.

RE: Water hammer in pressure vessels

(OP)
Thanks jtseng123!

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