Published July 1975 | Version v1
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Space-time kinetics of CANDU systems

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Description

Characteristics of CANDU systems which affect space dependent neutron transients have been studied. Major factors have been found to be neutronic decoupling of reactor segments due to deliberate flattening of the power distribution; retardation of the power shape transient due to delayed neutron holdback; photoneutron production in heavy water; asymmetric insertion of reactivity devices. A full-scale excursion analysis in 3-dimensions is presented to show the degree and manner in which these characteristics contribute to produce the overall spatially dependent neutron transients when a detailed model of the system is used in the simulation. (Author)

Availability note (English)

MF available from INIS under the Report Number.

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Additional details

Publishing Information

Imprint Pagination
40 p.
Report number
AECL--5181

INIS

Country of Publication
Canada
Country of Input or Organization
Canada
INIS RN
7244911
Subject category
S22: GENERAL STUDIES OF NUCLEAR REACTORS;
Descriptors DEI
CANDU TYPE REACTORS; EXCURSIONS; REACTOR KINETICS; REACTOR SIMULATORS
Descriptors DEC
ACCIDENTS; ANALOG SYSTEMS; FUNCTIONAL MODELS; HEAVY WATER MODERATED REACTORS; KINETICS; POWER REACTORS; PRESSURE TUBE REACTORS; REACTOR ACCIDENTS; REACTORS; SIMULATORS; THERMAL REACTORS