WHY do multiple orifice orifice plates reduce noise?
WHY do multiple orifice orifice plates reduce noise?
(OP)
Im currently working on a project regarding noise in orifice plates. I've seen it mentioned in several places that a multiple orifice orifice plate is quieter than a single orifice orifice plate of the same overall orifice area. Does anyone know WHY this is is the case?





RE: WHY do multiple orifice orifice plates reduce noise?
This all assumes an orifice of sufficient length to give you a permanent pressure drop--AGA 3 plates result in a dP that is partially recovered by interaction with downstream vortices. A choke nipple that is about 3 times the length of the main pipe ID, will have approximately zero pressure recovery.
David
RE: WHY do multiple orifice orifice plates reduce noise?
RE: WHY do multiple orifice orifice plates reduce noise?
David
RE: WHY do multiple orifice orifice plates reduce noise?
"Sharing knowledge is the way to immortality"
His Holiness the Dalai Lama.
http://waterhammer.hopout.com.au/
RE: WHY do multiple orifice orifice plates reduce noise?
RE: WHY do multiple orifice orifice plates reduce noise?
You have to ask Mitac for it. I will dig up a contact. Send me an email, address on website.
"Sharing knowledge is the way to immortality"
His Holiness the Dalai Lama.
http://waterhammer.hopout.com.au/