[en] As one of the principal barriers against the release of fission products into the primary heat transport system during a postulated accidents, definitive values for Zircaloy-4 properties and confidence its modelled behaviour is key to accident assessment. Recommended values and limits based on review of pertinent experimental data are presented for Zircaloy oxidation heat of reaction and Zircaloy-4 melting temperature. In addition, the validation of the Full Range Oxidation Model (FROM) code as well as statistical results and a comparison between FROM-3 .0 and FROM-SFD are presented. (author)
Source
Lewis, B.J. (ed.); Canadian Nuclear Society, Toronto, Ontario (Canada); 2 v; ISBN 0-919784-71-2; 
; 2001; (v.2) p. 5B.11-5B.20; 7. International CANDU fuel conference proceedings; Kingston, Ontario (Canada); 23-27 Sep 2001; 11 refs., 2 tabs., 5 figs.
; 2001; (v.2) p. 5B.11-5B.20; 7. International CANDU fuel conference proceedings; Kingston, Ontario (Canada); 23-27 Sep 2001; 11 refs., 2 tabs., 5 figs.
[en] Ontario Power Generation (OPG) is currently qualifying its critical safety analysis software. The software quality assurance (SQA) framework is described. Given the legacy nature of much of the safety analysis software the reverse engineering methodology has been adopted. The safety analysis suite of codes was developed over a period of many years to differing standards of quality and had sparse or incomplete documentation. Key elements of the reverse engineering process require recovery of design information from existing coding. This recovery, if performed manually, could represent an enormous effort. Driven by a need to maximize productivity and enhance the repeatability and objectivity of software qualification activities the decision was made to acquire or develop and implement Computer Aided Software Engineering (CASE) tools. This paper presents relevant background information on CASE tools and discusses how the OPG SQA requirements were used to assess the suitability of available CASE tools. Key findings from the application of CASE tools to the qualification of the OPG safety analysis software are discussed. (author)
Source
Canadian Nuclear Society, Toronto, Ontario (Canada); 75 Megabytes; ISBN 0-919784-69-0; ; 2001; [21 p.]; 22. annual conference/26. annual CNS/CNA student conference; Toronto, Ontario (Canada); 10-13 Jun 2001; Available on Compact Disc from the Canadian Nuclear Society, Toronto, Ontario (Canada); 8 refs., 2 tabs., 8 figs.
; 2001; [21 p.]; 22. annual conference/26. annual CNS/CNA student conference; Toronto, Ontario (Canada); 10-13 Jun 2001; Available on Compact Disc from the Canadian Nuclear Society, Toronto, Ontario (Canada); 8 refs., 2 tabs., 8 figs.
[en] The computer code ELESTRES-IST 1.0 has been selected as the industry standard tool (IST) for simulation of CANDU fuel behaviour under normal operating conditions (NOC). As part of formal qualification of the code, ELESTRES has been independently verified and validated according to the Canadian nuclear industry's Quality Assurance Program. The interim results of the verification and validation of the code are described. (author)
Source
Lewis, B.J. (ed.); Canadian Nuclear Society, Toronto, Ontario (Canada); 2 v; ISBN 0-919784-71-2; ; 2001; (v.2) p. 5b.21-5b.33; 7. International CANDU fuel conference proceedings; Kingston, Ontario (Canada); 23-27 Sep 2001; 1 ref., 4 tabs., 10 figs.
; 2001; (v.2) p. 5b.21-5b.33; 7. International CANDU fuel conference proceedings; Kingston, Ontario (Canada); 23-27 Sep 2001; 1 ref., 4 tabs., 10 figs.