Please use this identifier to cite or link to this item:
Title: Boiler tube failures (BTFs) in natural circulation high pressure drum boiler of a power station
Authors: Sohail, M Azad
Mustafa, A Ismail
Gafur, M Abdul
Keywords: BTFs;Boiler;Hydrogen damage;Regime;Water wall tubes
Issue Date: Jan-2009
Publisher: CSIR
Abstract: This paper assesses boiler tube failures (BTFs), especially in boiler water wall tubes (BWWTs) for a natural circulation high-pressure fossil (natural gas) drum boiler unit (TIME-COB-206, Russia). Metallographic (micro and macrostructural) examinations of BWWTs materials (carbon steel, Russia) were carried out extensively. Analyses of carbon (mild) steels (0.22% C) revealed distinctive changes in ferrite-pearlite distribution, might be due to decarburization. Huge pits, few grooves followed by flow lines were observed on internal surfaces of BWWTs with respect to length of power plant operation. Corrosions or scaling in BWWTs depicted one of the major causes of BTFs in fossil units with drum boilers usually treated by coordinated phosphates.
Page(s): 61-65
ISSN: 0022-4456
Appears in Collections:JSIR Vol.68(01) [January 2009]

Files in This Item:
File Description SizeFormat 
JSIR 68(1) 61-65.pdf1.82 MBAdobe PDFView/Open

Items in NOPR are protected by copyright, with all rights reserved, unless otherwise indicated.