Comparison between performances of Monte Carlo method and method of lines solution of.discrete ordinates method

Demirkaya G., Arinc F., Selcuk N., Ayranci I.

JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER, vol.93, pp.115-124, 2005 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 93
  • Publication Date: 2005
  • Doi Number: 10.1016/j.jqsrt.2004.08.016
  • Journal Name: JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.115-124
  • Keywords: Monte Carlo method, method of lines, discrete ordinates method, fluidized bed combustor, RADIATIVE HEAT-TRANSFER, FREEBOARD
  • Middle East Technical University Affiliated: Yes

Abstract

Monte Carlo method was used to predict the incident radiative heat fluxes on the freeboard walls of the METU 0.3 MWt atmospheric bubbling fluidized bed combustor based on the data reported previously. The freeboard was treated as a rectangular enclosure with gray interior walls and gray, absorbing, emitting and isotropically scattering medium. A Monte Carlo solver was developed and the performance of the solver was assessed by comparing its predictions with those of method of lines solution of discrete ordinates method and experimental measurements reported previously. Parametric studies were carried out to examine the effects of particle load and anisotropic scattering on the, predicted incident radiative heat fluxes. The comparisons show that Monte Carlo method reproduces the measured incident radiative heat fluxes reasonably well for the freeboard problem. (C) 2004 Elsevier Ltd. All rights reserved.