Journal of the Atomic Energy Society of Japan / Atomic Energy Society of Japan
Online ISSN : 2186-5256
Print ISSN : 0004-7120
ISSN-L : 0004-7120
Natural Circulation Test in Experimental Fast Reactor "JOYO"
Toshiaki SUZUKIYukio NAGAOKAKazunori HIRAOHiroshi TANIYAMAYoshiaki MATSUNOZenichi OGISONorihiko HANDAKenji OGURAHikaru KAJIWARA
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1983 Volume 25 Issue 9 Pages 729-738

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Abstract
In experimental fast reactor "JOYO", natural circulation test with a trip of all main pumps in the 75MW full power operation was conducted on December 23, 1981. Transition of the main loop flow from forced flow to natural circulation was smooth, and high natural circulation capability was verified. The peak fuel subassembly outlet sodium temperature during this test was below that during 75MW normal operation. Previous to the test, natural circulation analysis code MIMIRN2 was developed. The predicted peak value of the fuel subassembly outlet sodium temperature was in a good agreement with the measured value.
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© by the Atomic Energy Society of Japan
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