Rate of corrosion of waterwalls in supercritical pulverised fuel boilers

• Autorzy: Pronobis M. , Litka R.
• Języki publikacji: EN

Abstrakty

EN

This paper presents an analysis of the corrosion hazard in the burner belt area of waterwalls in pulverised fuel (PF) boilers that results from low-NOx combustion. Temperature distributions along the waterwall tubes in subcritical (denoted as SUB) and supercritical (SUP) boilers were calculated and compared. Two hypothetical distributions of CO concentrations were assumed in the near-wall layer of the flue gas in the boiler furnace, and the kinetics of the waterwall corrosion were analysed as a function of the local temperature of the tubes. The predicted rate of corrosion of the boiler furnace waterwalls in the supercritical boilers was compared with that of in the subcritical boilers.

Słowa kluczowe

EN

waterwall; subcritical boilers; supercritical boilers; corrosion

PL

kurtyna wodna; kotły nadkrytyczne; kotły podkrytyczne; korozja

• Wydawca: Komitet Inżynierii Chemicznej i Procesowej Polskiej Akademii Nauk
• Czasopismo: Chemical and Process Engineering
• Rocznik: 2012
• Tom: Vol. 33, nr 2
• Strony: 263--277
• Opis fizyczny: Bibliogr. 15 poz., tab., wykr.

Twórcy

autor

Pronobis M.

autor

Litka R.

• Silesian University of Technology in Gliwice, Institute of Power Engineering and Turbomachinery, ul. Konarskiego 20, 44-100 Gliwice, Poland

Bibliografia

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