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Control rod studies for alternative fuel cycles in the GA 1160 MW(e) high temperature reactor

Abstract

The control system, which is investigated in this paper for both the low enriched uranium high enriched uranium/thorium fuel cycles, has been developed to control the General Atomics (GA) thorium fuel cycle 1160 MW(e) reactor. It has been shown in this investigation that its effectiveness in the low enriched and subsequent thorium cycle switch-over reactor is equivalent to the effectiveness in the thorium cycle. The shutdown margin in the low enriched core is even higher compared to the thorium core, mainly due to the presence of Pa-233 in the thorium cycle. As long as the fuel cycle for the thorium cycle is not closed with the recycling of U-233, the low enriched cycle will offer an attractive alternative. It was found that the GA 1160 MW(e) control system has enough built-in control rod capacity to accommodate the low enriched uranium cycle and to perform a later switch-over to a thorium-based fuel cycle.
Authors:
Publication Date:
Jun 15, 1975
Product Type:
Technical Report
Report Number:
DCPM-20/Dragon-2; DPPN-339
Resource Relation:
Conference: 20. Dragon Countries Physics Meeting, Paris (France), Jun 1975
Subject:
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS; DRAGON REACTOR; HTGR TYPE REACTORS; EXPERIMENTAL REACTORS
Sponsoring Organizations:
OECD Dragon Project, Paris (France)
OSTI ID:
1352866
Research Organizations:
OECD Dragon Project, Paris (France)
Country of Origin:
NEA
Language:
English
Submitting Site:
OSTI
Size:
9 p.
Announcement Date:
Apr 27, 2017

Citation Formats

Neef, H. J. Control rod studies for alternative fuel cycles in the GA 1160 MW(e) high temperature reactor. NEA: N. p., 1975. Web.
Neef, H. J. Control rod studies for alternative fuel cycles in the GA 1160 MW(e) high temperature reactor. NEA.
Neef, H. J. 1975. "Control rod studies for alternative fuel cycles in the GA 1160 MW(e) high temperature reactor." NEA.
@misc{etde_1352866,
title = {Control rod studies for alternative fuel cycles in the GA 1160 MW(e) high temperature reactor}
author = {Neef, H. J.}
abstractNote = {The control system, which is investigated in this paper for both the low enriched uranium high enriched uranium/thorium fuel cycles, has been developed to control the General Atomics (GA) thorium fuel cycle 1160 MW(e) reactor. It has been shown in this investigation that its effectiveness in the low enriched and subsequent thorium cycle switch-over reactor is equivalent to the effectiveness in the thorium cycle. The shutdown margin in the low enriched core is even higher compared to the thorium core, mainly due to the presence of Pa-233 in the thorium cycle. As long as the fuel cycle for the thorium cycle is not closed with the recycling of U-233, the low enriched cycle will offer an attractive alternative. It was found that the GA 1160 MW(e) control system has enough built-in control rod capacity to accommodate the low enriched uranium cycle and to perform a later switch-over to a thorium-based fuel cycle.}
place = {NEA}
year = {1975}
month = {Jun}
}