A general model for predicting coolant activity behaviour for fuel-failure monitoring analysis

被引：33

作者：

El-Jaby, A. ^{[1
]}

Lewis, B. J. ^{[1
]}

Thompson, W. T. ^{[1
]}

Iglesias, F. ^{[2
]}

Ip, M. ^{[3
]}

机构：

[1] Royal Mil Coll Canada, Dept Chem & Chem Engn, Kingston, ON K7K 7B4, Canada

[2] Candesco Corp, Toronto, ON M5V 1V6, Canada

[3] Bruce Power, Toronto, ON M5J 2M2, Canada

来源：

JOURNAL OF NUCLEAR MATERIALS | 2010年 / 399卷 / 01期

基金：

加拿大自然科学与工程研究理事会;

关键词：

FISSION-PRODUCT RELEASE; NUCLEAR-FUEL; ELEMENTS; OXIDATION; REACTOR;

D O I：

10.1016/j.jnucmat.2010.01.006

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A mathematical treatment has been developed to predict the release of volatile fission products from operating defective nuclear fuel elements. The fission product activity in both the fuel-to-sheath gap and primary heat transport system as a function of time can be predicted during all reactor operating conditions, including: startup, steady-state, shutdown, and bundle-shifting manoeuvres. In addition, an improved ability to predict the coolant activity of the (135)Xe isotope in commercial reactors is discussed. A method is also proposed to estimate both the burnup and the amount of tramp uranium deposits in-core. The model has been validated against in-reactor experiments conducted with defective fuel elements containing natural and artificial failures at the Chalk River Laboratories. Lastly, the model has been benchmarked against a defective fuel occurrence in a commercial reactor. Crown Copyright (C) 2010 Published by Elsevier B.V. All rights reserved.

引用

页码：87 / 100

页数：14

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