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The Influence of Intermittent Operation on the Life of the High Pressure Steam Duct of a Recovery Boiler

D'Ambros L. - LABORELEC 'Belgium
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ABSTRACT :

1 Introduction

2 Preliminary evaluation of the lifetime under Creep

3 Measuring equipment

4 Analysis of the variations in temperature

5 Evaluation of the lifetime under fatigue

6 Investigation of the causes of major thermal shocks on stopping

7 Conclusions

References

  1. TRD - "Technische Regelm für Dampfkessel" [Technical regulations for steam boilers], 1981 edition, Carl Heymans Verlag - Beuth (Berlin)
  2. "Courbes de fluage isothermes (DIN 17175)" [Isothermal flow curves (DIN 17175)] (In French)
  3. "Meting thermische stratificatie in de stoomleidingen - TGV Drogenbos - Beschrijving van de meetketens" [Measurement of thermal stratification in pipes carrying steam - GST Drogenbos - Description of the measuring sequences], TRACTEBEL (M. De Smet), no. 4408 (23/09/93). (In Dutch)
  4. Marc WOLFS "Centrale TGV de Drogenbos - Mesures des transitoires de température sur la tuyauterie de vapeur surchauffée haute pression" [Drogenbos GST power station - Measurements of temperature transients on the pipework of high pressure superheated steam], LABORELEC-MATER-STR-97-0012/R-MW-cg; 24/09/1997. (In French)
  5. LABORELEC - "Production Classique - Séminaire-Exposé de quelques faits marquants en projets et service de l'année 1997" 10/02/1998 ("Contraintes thermiques transitoires dans une tuyauterie vapeur de centrale TGV" - Marc WOLFS)" [Traditional Production - Seminar-Exposé of some salient facts concerning projects and service in the year 1997" 10/02/1998 ("Transient thermal stresses in the steam pipework of a GST power station" - Marc WOLFS)] (In French)
  6. Olivier VAN ROYE "Etude de la fatigue thermique des composants à paroi épaisse dans l'industrie : élaboration d'un logiciel convivial et application en centrale thermique" [Study of the thermal fatigue of thick walled components in industry: development of a user-friendly software package and application in a thermal power station]. Paper at the end of a study, I.S.I.B. (June 1998). (In French)
  7. PICH R.
    "Die Berechnung der elastischen, instationären Wärmespannungen in Platten, Hohlzylindern und Hohlkugeln mit quasistationären Temperaturfeldern" [Calculation of the elastic, non-stationary temperature stresses in sheets, hollow cylinders and hollow spheres with quasi-stationary temperature zones], Mitteilungen VGB, Hefte 87-88, Dez. 1963, Febr. 1964. (In German)
  8. H. DIETMANN, St. ISSLER
    "Zur Bestimmung von Dehnungserhöhungsfaktoren" [Determination of factors increasing expansion], VGB Kraftwerkstechink 9/98 (see p.122) (In German)

Appendix 1: The Work Package of the GST multidisciplinary project

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