Creation of Digital Acoustic Model of Pressurizer of Nuclear Power Plant with Water-Water Power Reactor and its Practical Application

Abstract

The theoretical and computational justification of previously unknown properties of pressurizer as filter capable of suppressing acoustic waves whose frequencies fall into the vibration bandwidth of equipment, internal devices and support structures, is presented. Regulation of range of suppressed frequencies of acoustic waves is carried out by selecting geometric dimensions of connecting pipe the pressurizer with primary circuit or by changing the water level in pressurizer.