Hybrid-transport point kinetics for initially-critical multiplying systems

Paolo Picca, Roberto Furfaro

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The paper presents an extension of the Hybrid Transport Point Kinetic (HTPK) model to initially-critical multiplying structures, i.e. in a source-free medium with transients starting from the equilibrium between neutron distribution and precursor concentrations. The mathematical model behind the HTPK methodology is derived from the detailed time-dependent balance equations and with reference to the limiting cases (i.e., point model and multi-collision models). Numerical simulations of transient systems demonstrate the interesting features of HTPK, which is shown to sensibly increase the accuracy of classical point kinetics models even at low truncation orders.

Original languageEnglish (US)
Pages (from-to)232-243
Number of pages12
JournalProgress in Nuclear Energy
Volume76
DOIs
StatePublished - 2014

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kinetics
Kinetics
Neutrons
Mathematical models
collision
Computer simulation
methodology
simulation

Keywords

  • Critical systems
  • Hybrid model
  • Multi-collisions
  • Point kinetics
  • Reactor kinetics

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Nuclear Energy and Engineering
  • Waste Management and Disposal
  • Safety, Risk, Reliability and Quality

Cite this

Hybrid-transport point kinetics for initially-critical multiplying systems. / Picca, Paolo; Furfaro, Roberto.

In: Progress in Nuclear Energy, Vol. 76, 2014, p. 232-243.

Research output: Contribution to journalArticle

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