Canadian experience in the area of reactor noise

Abstract

This report outlines the reactor noise and dynamics program and reviews some Canadian experience in applying reactor noise measurement techniques to the development of the CANadian Deuterium Uranium (CANDU) pressure tube reactor system. Our general objective is to develop technical competence in the area of reactor noise and dynamics and apply it to the further development of the CANDU reactor system. To achieve this objective, work is directed towards the following areas: Development Application Expansion Advancement. Application of reactor noise analysis techniques in the CANDU-BLW power reactor, Gentilly-1, is discussed since the work has demonstrated the role of noise measurements in commercial stations. Gentilly-1 with Boiling Light Water (BLW) coolant in the channels and a positive void feedback provided an ideal opportunity for assessment of the use of reactor noise techniques in power reactor systems. Consequently programs using both (1) inherent and (2) imposed excitation were carried out. Results from both programs are presented and their significance in satisfying program objectives is discussed.