Mechanical design of steel tubing for use in black liquor recovery boilers : A look at how finite element analysis methods can evaluate stress conditions

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal

2 Scopus Citations
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Author(s)

  • B. TALJAT
  • T. ZACHARIA
  • J.R. KEISER
  • R.W. SWINDEMAN
  • C.R. HUBBARD

Detail(s)

Original languageEnglish
Pages (from-to)34-38
Journal / PublicationPulp and Paper Canada
Volume100
Issue number10
Publication statusPublished - Oct 1999
Externally publishedYes

Abstract

Finite element models were developed for thermal-mechanical analysis of black liquor recovery boiler floor tubes. Residual stresses in boiler floors due to various manufacturing processes were analyzed. The modeling results were verified by X-ray and neutron diffraction measurements at room temperature on as-manufactured tubes as well as tubes after service. The established finite element models were then used to evaluate stress conditions during boiler operation. Using these finite element models, a parametric response surface study was performed to investigate the influence of material properties of the clad layer on stresses in the floor tubes during various boiler operating conditions, which yielded a generalized solution of stresses in the composite tube floors. The results of the study are useful for identifying the mechanisms of cracking experienced by recovery boilers. Based on the results of the response surface study, a recommendation was made for more suitable materials in terms of the analyzed mechanical properties.

Research Area(s)

  • recovery furnaces, tubes, stainless steel, stresses, machine design, Construction materials, cracking

Citation Format(s)

Mechanical design of steel tubing for use in black liquor recovery boilers : A look at how finite element analysis methods can evaluate stress conditions. / TALJAT, B.; ZACHARIA, T.; WANG, X.-L.; KEISER, J.R.; SWINDEMAN, R.W.; HUBBARD, C.R.

In: Pulp and Paper Canada, Vol. 100, No. 10, 10.1999, p. 34-38.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal