Multiregion, multigroup collision probability method with white boundary condition for light water reactor thermalization calculations


Ozgener B., Ozgener H.

JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER, vol.92, no.4, pp.417-445, 2005 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 92 Issue: 4
  • Publication Date: 2005
  • Doi Number: 10.1016/j.jqsrt.2004.08.007
  • Title of Journal : JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
  • Page Numbers: pp.417-445

Abstract

A multiregion, multigroup collision probability method with white boundary condition is developed,for thermalization calculations of light water moderated reactors. Hydrogen scatterings are treated by Nelkin's kernel while scatterings from other nuclei are assumed to obey the free-gas scattering kernel. The isotropic return (white) boundary condition is applied directly by using the appropriate collision probabilities. Comparisons with alternate numerical methods show the validity of the present formulation. Comparisons with some experimental results indicate that the present formulation is capable of calculating disadvantage factors which are closer to the,experimental results than alternative methods.