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Analysis to speed up of the start-up of steam boiler OP-380

Wybrane pełne teksty z tego czasopisma
Identyfikatory
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
During operation of the OP-380 boiler under transient conditions, for example during start-up and shutdown of the power unit, on the circumference of horizontal pressure elements like a drum, inlet and outlet headers, considerable temperature differences are observed. The duration of each start-up and shutdown is relatively long because is limited by thermal stresses caused by temperature changes. The paper presents the method of the maximum stresses arising during operation in transient states determination, based on the measurement of temperature on the outer surface of the thick-walled pressured element. The presented measuring system, including the described method has been implemented in the OP-380 boiler at EDF Krakow. This system will act as a thermal constraints system, whose main task is to protect the equipment against exceeding the maximum allowable thermal stress. This method will also allow assessment of the viability of thick-walled components based on the values of the stresses that occur during long-term operation of the boiler.
Rocznik
Strony
114--120
Opis fizyczny
Bibliogr. 9 poz., rys., wykr.
Twórcy
autor
  • Institute of Thermal Power Engineering, Cracow University of Technology, 24 Warszawska Street, 31-155 Cracow, Poland, taler@mech.pk.edu.pl
  • Institute of Thermal Power Engineering, Cracow University of Technology, 24 Warszawska Street, 31-155 Cracow, Poland
autor
  • Institute of Thermal Power Engineering, Cracow University of Technology, 24 Warszawska Street, 31-155 Cracow, Poland
  • EDF Polska S.A., Research and Development, 1 Cieplownicza Street, 31-587 Cracow, Poland
autor
  • EDF Polska S.A., Research and Development, 1 Cieplownicza Street, 31-587 Cracow, Poland
autor
  • EDF Polska S.A., Research and Development, 1 Cieplownicza Street, 31-587 Cracow, Poland
  • EDF Polska S.A., Research and Development, 1 Cieplownicza Street, 31-587 Cracow, Poland
Bibliografia
  • [1] J. Taler, P. Dzierwa, D. Taler, Determining optimum temperature changes during heating of pressure vessels with holes, in: PVP 2013-98025. Proceedings of the ASME 2013 Pressure Vessels & Piping Division Conference PVP2013, Paris, 2013, pp. 14–18.
  • [2] J. Taler, B. Węglowski, W. Zima, S. Grądziel, M. Zborowski, Analysis of thermal stresses in a boiler drum during start-up., Transactions of the ASME, Journal of Pressure Vessel Technology 121 (1999) 84–93.
  • [3] T. S. Kim, D. K. Lee, S. T. Ro, Analysis of thermal stress evolution in the steam drum during start-up of a heat recovery steam generator, Applied Thermal Engineering 20 (2000) 977–992.
  • [4] K. Krüger, R. Franke, M. Rode, Optimization of boiler start-up using a nonlinear boiler model and hard constraints, Energy 29 (2004) 2239–2251.
  • [5] P. Dzierwa, Encyclopedia of Thermal Stresses, Springer, Berlin, Germany, 2013, Ch. Optimum heating of pressure components of complex shape.
  • [6] J. Taler, P. Dzierwa, D. Taler, Optimum heating of pressure components of large steam boilers, Forschung im Ingenieurwesen (Engineering Research) 73 (3) (2009) 183–192.
  • [7] J. Taler, P. Dzierwa, A new method for optimum heating of steam boiler pressure components, International Journal of Energy Research 35 (2011) 897–908.
  • [8] H. Beuth, TRD 301, Zylinderschalen unter innerem Überdruck. Technische Regeln für Dampfkessel (TRD),143–185, Köln-Berlin, Germany (2001).
  • [9] Water-tube boilers and auxiliary installations – part 3: Design and calculation for pressure parts (2012).
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-f76769f5-6ea2-42e0-a8e7-808e96d8cbdf
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