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A comparison of LOCA analysis using SMOKIN and CERBERUS codes

Abstract

This paper presents the results of a comparison of the analyses of a postulated Loss of Coolant Accident (LOCA) in Pickering NGS A reactors using the two neutron kinetics codes SMOKIN and CERBERUS. Both codes have been used to simulate the space-time neutronic behaviour of CANDU-PHWR reactors. The main objective of the present study is to evaluate the accuracy with which SMOKIN can predict power transients compared to CERBERUS. The comparison shows that the two codes produce similar bulk power and reactivity transients. However, SMOKIN was found to overestimate the power transient (relative to CERBERUS) in some regions of the core, which is indicative of the spatial differences between the two codes. It was demonstrated that part of this overestimate is due to the use of reaction-rate averaged fuel properties in SMOKIN, compared to instantaneous fuel properties in CERBERUS. (author). 5 refs., 3 tabs., 6 figs.
Authors:
Younis, M H; [1]  Gaboury, G [2] 
  1. Atomic Energy of Canada Ltd., Mississauga, ON (Canada)
  2. Ontario Hydro, Toronto, ON (Canada)
Publication Date:
Dec 31, 1995
Product Type:
Conference
Report Number:
INIS-CA-0053; CONF-950623-
Reference Number:
SCA: 210400; PA: AIX-28:076155; EDB-97:143838; SN: 97001880561
Resource Relation:
Conference: 35. annual conference of the Canadian Nuclear Association and 16th annual conference of the Canadian Nuclear Society, Saskatoon (Canada), 4-7 Jun 1995; Other Information: PBD: 1995; Related Information: Is Part Of CNS proceedings of the 16. annual conference, volume I and II; Wight, A.L.; Loewer, R. [eds.]; PB: [2 v. ] p.
Subject:
21 NUCLEAR POWER REACTORS AND ASSOCIATED PLANTS; LOSS OF COOLANT; COMPUTERIZED SIMULATION; PICKERING-1 REACTOR; REACTOR KINETICS; SAFETY; C CODES; COMPARATIVE EVALUATIONS; FINITE DIFFERENCE METHOD; NEUTRON TRANSPORT THEORY; NODAL EXPANSION METHOD; S CODES; TRANSIENTS
OSTI ID:
545980
Research Organizations:
Canadian Nuclear Society, Toronto, ON (Canada)
Country of Origin:
Canada
Language:
English
Other Identifying Numbers:
Other: ON: DE98603788; TRN: CA9700764076155
Availability:
INIS; OSTI as DE98603788
Submitting Site:
INIS
Size:
pp. [16]
Announcement Date:

Citation Formats

Younis, M H, and Gaboury, G. A comparison of LOCA analysis using SMOKIN and CERBERUS codes. Canada: N. p., 1995. Web.
Younis, M H, & Gaboury, G. A comparison of LOCA analysis using SMOKIN and CERBERUS codes. Canada.
Younis, M H, and Gaboury, G. 1995. "A comparison of LOCA analysis using SMOKIN and CERBERUS codes." Canada.
@misc{etde_545980,
title = {A comparison of LOCA analysis using SMOKIN and CERBERUS codes}
author = {Younis, M H, and Gaboury, G}
abstractNote = {This paper presents the results of a comparison of the analyses of a postulated Loss of Coolant Accident (LOCA) in Pickering NGS A reactors using the two neutron kinetics codes SMOKIN and CERBERUS. Both codes have been used to simulate the space-time neutronic behaviour of CANDU-PHWR reactors. The main objective of the present study is to evaluate the accuracy with which SMOKIN can predict power transients compared to CERBERUS. The comparison shows that the two codes produce similar bulk power and reactivity transients. However, SMOKIN was found to overestimate the power transient (relative to CERBERUS) in some regions of the core, which is indicative of the spatial differences between the two codes. It was demonstrated that part of this overestimate is due to the use of reaction-rate averaged fuel properties in SMOKIN, compared to instantaneous fuel properties in CERBERUS. (author). 5 refs., 3 tabs., 6 figs.}
place = {Canada}
year = {1995}
month = {Dec}
}