MODELLING THE TRANSPORT OF CORROSION PRODUCTS AND RADIONUCLIDES IN THE CANDU PRIMARY HEAT TRANSPORT SYSTEM
39th Annual CNS-CNA Student Conference - 2015 June 01


Presented at:
39th Annual CNS-CNA Student Conference
2015 June 01
Location:
Toronto, Canada
Session Title:
Student Session

Authors:
O. Palazhchenko (University of New Brunswick)
D. H. Lister (University of New Brunswick)
  

Abstract

An accurate prediction of FAC in a typical CANDU-6 is important for determining radiation fields around components. The current model calculates FAC rates and the transport of non-radioactive and irradiated corrosion products around the primary side. One EFPY of operation is simulated for low- and high- chromium carbon steel. Predictions of corrosion rates in the feeders and deposit accumulation are in good agreement with plant measurements. Activities of 59Fe, 55Fe, 58Co, and 63Ni are obtained from the predicted deposit mass per unit area. On-going work involves modelling surface activity levels resulting from 54Mn, 65Zn, 51Cr, and 60Co transport.

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