BLOWDOWN BY ASME

[maocba]

Is the blowdown required for safety function or for funcional function by ASME III (nuclear)??
Sorry for my english

 

[GrimesFrank]

maocba,
Blowdown is a functional inevitability of the inefficiency of the RV, what ASME does is it puts bounds on the design to limit that inefficiency.

Today is gone. Today was fun.
Tomorrow is another one.
Every day, from here to there,
funny things are everywhere. ~'Dr.' Theodor Geisel

 

[JimCasey]

ALso without blowdown there would inevitably be chatter. It IS necessary to have a difference between the opening point and the reseating point.