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The low enriched fuel cycle in the GA 1160 MW design and the switch-over to thorium

Abstract

Calculations for the GA 1160 MW HTR are presented. The aim of these investigations was to compare the Low Enriched Uranium (LEU) cycle and the Thorium cycle for the GA 1160 MW HTR both using the same GA designed integral block fuel element. The total fuel cycle cost for the equilibrium cycle comes out to be about 16% cheaper for the Thorium cycle than for the Low-Enriched cycle. However, these favorable results for the thorium cycle are completely dependent on the availability of reprocessing and refabrication facilities, for costs comparable with the costs used for these investigations. The possibility of starting the reactor on a LEU 3 year cycle and later switching over to a thorium 4 year cycle was investigated. No cost penalties were found to be paid during the switch-over. The problems of local power peaks and age factors were not investigated in greater detail as only integral physical quantities were obtained from the neutron physics calculations. However, no indications of any problem in the switch-over phase were given. Elaborate 3-dimensional methods are necessary for further investigation of these types of problems.
Authors:
Publication Date:
Mar 15, 1974
Product Type:
Technical Report
Report Number:
DCPM-18/Dragon-1
Resource Relation:
Conference: 18. Dragon Countries Physics Meeting, Berkeley, Gloucestershire (United Kingdom), Mar 1974
Subject:
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS; DRAGON REACTOR; HTGR TYPE REACTORS; EXPERIMENTAL REACTORS
Sponsoring Organizations:
OECD Dragon Project, Paris (France)
OSTI ID:
1351892
Research Organizations:
OECD Dragon Project, Paris (France)
Country of Origin:
NEA
Language:
English
Submitting Site:
OSTI
Size:
23 p.
Announcement Date:
Apr 20, 2017

Citation Formats

Larsen, H. The low enriched fuel cycle in the GA 1160 MW design and the switch-over to thorium. NEA: N. p., 1974. Web.
Larsen, H. The low enriched fuel cycle in the GA 1160 MW design and the switch-over to thorium. NEA.
Larsen, H. 1974. "The low enriched fuel cycle in the GA 1160 MW design and the switch-over to thorium." NEA.
@misc{etde_1351892,
title = {The low enriched fuel cycle in the GA 1160 MW design and the switch-over to thorium}
author = {Larsen, H.}
abstractNote = {Calculations for the GA 1160 MW HTR are presented. The aim of these investigations was to compare the Low Enriched Uranium (LEU) cycle and the Thorium cycle for the GA 1160 MW HTR both using the same GA designed integral block fuel element. The total fuel cycle cost for the equilibrium cycle comes out to be about 16% cheaper for the Thorium cycle than for the Low-Enriched cycle. However, these favorable results for the thorium cycle are completely dependent on the availability of reprocessing and refabrication facilities, for costs comparable with the costs used for these investigations. The possibility of starting the reactor on a LEU 3 year cycle and later switching over to a thorium 4 year cycle was investigated. No cost penalties were found to be paid during the switch-over. The problems of local power peaks and age factors were not investigated in greater detail as only integral physical quantities were obtained from the neutron physics calculations. However, no indications of any problem in the switch-over phase were given. Elaborate 3-dimensional methods are necessary for further investigation of these types of problems.}
place = {NEA}
year = {1974}
month = {Mar}
}