Paper 62. The development of a model for the prediction of boiler tube failures resulting from two-phase erosion-corrosion

Harrison, G. S.; Walker, Mark A.; Penfold, D.; Greene, J. C.

doi:10.1680/wconrs4v1.03705.0044

Cited by 1 publication

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“…The body of the boiler is the pressure vessel and contains the fluid and it can be of water tube and fire tube type boiler. The tubes are made from unalloyed or low alloy steel by hot finished or cold finished and the hot finished tube can be heat treated to provide a uniform grain structure or ductility for severe forming operations or cold drawing [3]. Various factors like deficiency in design, fabrication, operating conditions, unsuitable materials selection [4][5][6] can lead to boiler failure.…”

Section: Introductionmentioning

confidence: 99%

Analysis of End Crack in Boiler Tube

Begum¹,

Karim

Nainar³

et al. 2012

AMR

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Boiler tube failures usually result in frequent forced outages, and ultimately in costly extended outages for major tubing replacement in a plant. There are several failure modes that may occur in a boiler tube, i.e. stress-corrosion cracking, pitting, water-side corrosion, fire-side corrosion, fatigue failure, overheating, dissimilar metal weld fatigue, mechanical fatigue and erosion. In this research the failure modes of boiler and its end cracks due to the dissimilar metal weld is analyzed. Hence data are collected and explored to determine the cause of failure and as a solution ceramic ferrule is suggested. The use of ceramic ferrule in boiler tube can eliminate the crack occurrence or delay the process due to thermal properties. The prevention of crack will reduce frequent maintenance and thus the cost of operation can be minimized.

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Section: Introductionmentioning

confidence: 99%