Hii all,
This is just to clear my query on max. allowable accumulated pressure in pressure vessels as mentioned in ASME SEC VIII.
Why do we always take credit for max allowable overpressure or max allowable accumulation, can't be accumulation kept below 110%, 116% or 121%?
I mean less the accumulation, less the system overpressure and hence less we avoid reaching over MAWP.
Or is it just considering max accumulation results in smaller PSVs and hence less cost to manufacture.
Might be foolish query but i had to.
Many thanks!