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2 100 852

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IPC

(21) (22)

Application

96112941/25, 1996-07-01

(22)

Actual filing date

1996-07-01

(45)

Published

1997-12-27

(72)

Inventor

Burlakov E.V.Vorontsov B.A.Krajushkin A.V.Kupalov-Jaropolk A.I.Nikolaev V.A.Panjushkin A.K.Robot'Ko A.V.Fedosov A.M.

(73)

Holder

Aktsionernoe Obshchestvo Otkrytogo Tipa Zavod"

URANIUM-GRAPHITE REACTOR OPERATING PROCESS Russian patent published in 1997 - IPC

Abstract RU 2100852 C1

FIELD: nuclear power engineering. SUBSTANCE: number of additional absorbers to be removed is determined. Then burned-out fuel elements are replaced by those in which erbium has been introduced. Refueling is made until erbium concentration in reactor core reaches value at which erbium effect on core reactivity, including its burn-out till removal of additional absorbers corresponds to at least 80% of effect produced on reactivity of additional absorbers to be removed. Then additional absorbers are taken out of reactor. Burned-out fuel assemblies are replaced by erbium-containing ones and erbium concentration in core is maintained at such level as to ensure that erbium effect on core reactivity is at least 80% of same effect of additional absorbers removed. EFFECT: facilitated procedure. 6 cl

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RU 2 100 852 C1

Authors

Burlakov E.V.

Vorontsov B.A.

Krajushkin A.V.

Kupalov-Jaropolk A.I.

Nikolaev V.A.

Panjushkin A.K.

Robot'Ko A.V.

Fedosov A.M.

Dates

1997-12-27—Published

1996-07-01—Filed