Published June 2008 | Version v1
Journal article Metadata-only

Transitional reactivity variation from natural to forced circulation

Creators

  • 1. College of Nuclear Science and Technology, Harbin Engineering University, Harbin (China)
  • 2. College of Nuclear Science and Technology, Xi'an Jiaotong University, Xi'an (China)

Description

In order to study the disciplinarian of reactivity variation in the transient state from natural to forced circulation, a calculation model was established for the reactor and primary coolant system based on MATLAB. The calculation results indicate that the coolant flux changes in conformity to hyperbolic tangent curve in the transient state. The coefficient k and flux rising multiple, W∞/W0, determine the flux grads and time for flux to steady. It can effectively improve the minimum reactor period to choose appropriate value of coefficient k in reactor design. And reducing the flux grads of transient state can decrease the peak value of reactivity and increase the security of reactor. (authors)

Additional details

Publishing Information

Journal Title
Nuclear Power Engineering
Journal Volume
29
Journal Issue
3
Journal Page Range
p. 18-22, 55
ISSN
0258-0926

INIS

Country of Publication
China
Country of Input or Organization
China
INIS RN
43075171
Subject category
S22: GENERAL STUDIES OF NUCLEAR REACTORS;
Descriptors DEI
COMPUTER CODES; COOLANTS; DESIGN; DIAGRAMS; FLOW RATE; M CODES; NATURAL CONVECTION; PEAKS; PRIMARY COOLANT CIRCUITS; REACTIVITY; REACTOR CORES; REACTOR PERIOD; SECURITY; TIME DEPENDENCE; TRANSIENTS; VARIATIONS
Descriptors DEC
COMPUTER CODES; CONVECTION; COOLING SYSTEMS; ENERGY SYSTEMS; ENERGY TRANSFER; HEAT TRANSFER; INFORMATION; MASS TRANSFER; REACTOR COMPONENTS; REACTOR COOLING SYSTEMS

Optional Information

Notes
6 figs., 4 tabs., 12 refs.