Wall thinning and creep damage analysis in boiler tube and optimization of operating conditions

The boiler tubes are operated continuously at high temperature and pressure. During operation,scales are formed in boiler tube due to tube geometries, flue gas and steam temperature. The remaining wall thickness decreases due to the formation of scale which eventually causes failure of the boiler tu...

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Main Authors:	Begum, Shahida, Karim, A.N. Mustafizul, Zamani, A. S. M., Shafii, M. A.
Format:	Article
Language:	English
Published:	American Scientific Publishers 2013
Subjects:	T11.95 Industrial directories TJ268 Steam engineering. Locomotives
Online Access:	http://irep.iium.edu.my/30500/ http://irep.iium.edu.my/30500/1/01JOM02-1015_Wall%2327.pdf

id	iium-30500
recordtype	eprints
spelling	iium-305002013-08-15T03:10:16Z http://irep.iium.edu.my/30500/ Wall thinning and creep damage analysis in boiler tube and optimization of operating conditions Begum, Shahida Karim, A.N. Mustafizul Zamani, A. S. M. Shafii, M. A. T11.95 Industrial directories TJ268 Steam engineering. Locomotives The boiler tubes are operated continuously at high temperature and pressure. During operation,scales are formed in boiler tube due to tube geometries, flue gas and steam temperature. The remaining wall thickness decreases due to the formation of scale which eventually causes failure of the boiler tubes. In this investigation an iterative technique was used to determine the temperature distribution across the tube with the operating time. The operating time was considered up to 160,000 hours. The remaining life of the steam generator tube was found by finding hoop stress and Larson Miller Parameter from the Larson Miller Parameter curve for SA213-T22 material. By utilizing finite element modelling software, ANSYS 9/ANSYS 11 the temperature distribution across the steam generator tube was evaluated. The increase of heat transfer rate across the wall caused the oxide scale thickness to grow more rapidly than normal condition. It was also observed that due to formation of scale the thermal conductivity in the boiler tubes was affected and the remaining life of boiler tubes was decreased and accelerated creep damage. The ANSYS result was analyzed by Minitab 16 to determine the main and interactive effects of operating conditions. Steam temperature was influencing most the wall thinning and creep damage in comparison to the flue gas temperature. The interactive effects of both the parameters were also prominent. Moreover, the optimum operating condition was identified in order to maximizing the remnant life of the tubes while minimizing the creep rupture damage. American Scientific Publishers 2013 Article PeerReviewed application/pdf en http://irep.iium.edu.my/30500/1/01JOM02-1015_Wall%2327.pdf Begum, Shahida and Karim, A.N. Mustafizul and Zamani, A. S. M. and Shafii, M. A. (2013) Wall thinning and creep damage analysis in boiler tube and optimization of operating conditions. Journal of Mechatronics, 1. pp. 1-6. ISSN 2326-2885
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English
topic	T11.95 Industrial directories TJ268 Steam engineering. Locomotives
spellingShingle	T11.95 Industrial directories TJ268 Steam engineering. Locomotives Begum, Shahida Karim, A.N. Mustafizul Zamani, A. S. M. Shafii, M. A. Wall thinning and creep damage analysis in boiler tube and optimization of operating conditions
description	The boiler tubes are operated continuously at high temperature and pressure. During operation,scales are formed in boiler tube due to tube geometries, flue gas and steam temperature. The remaining wall thickness decreases due to the formation of scale which eventually causes failure of the boiler tubes. In this investigation an iterative technique was used to determine the temperature distribution across the tube with the operating time. The operating time was considered up to 160,000 hours. The remaining life of the steam generator tube was found by finding hoop stress and Larson Miller Parameter from the Larson Miller Parameter curve for SA213-T22 material. By utilizing finite element modelling software, ANSYS 9/ANSYS 11 the temperature distribution across the steam generator tube was evaluated. The increase of heat transfer rate across the wall caused the oxide scale thickness to grow more rapidly than normal condition. It was also observed that due to formation of scale the thermal conductivity in the boiler tubes was affected and the remaining life of boiler tubes was decreased and accelerated creep damage. The ANSYS result was analyzed by Minitab 16 to determine the main and interactive effects of operating conditions. Steam temperature was influencing most the wall thinning and creep damage in comparison to the flue gas temperature. The interactive effects of both the parameters were also prominent. Moreover, the optimum operating condition was identified in order to maximizing the remnant life of the tubes while minimizing the creep rupture damage.
format	Article
author	Begum, Shahida Karim, A.N. Mustafizul Zamani, A. S. M. Shafii, M. A.
author_facet	Begum, Shahida Karim, A.N. Mustafizul Zamani, A. S. M. Shafii, M. A.
author_sort	Begum, Shahida
title	Wall thinning and creep damage analysis in boiler tube and optimization of operating conditions
title_short	Wall thinning and creep damage analysis in boiler tube and optimization of operating conditions
title_full	Wall thinning and creep damage analysis in boiler tube and optimization of operating conditions
title_fullStr	Wall thinning and creep damage analysis in boiler tube and optimization of operating conditions
title_full_unstemmed	Wall thinning and creep damage analysis in boiler tube and optimization of operating conditions
title_sort	wall thinning and creep damage analysis in boiler tube and optimization of operating conditions
publisher	American Scientific Publishers
publishDate	2013
url	http://irep.iium.edu.my/30500/ http://irep.iium.edu.my/30500/1/01JOM02-1015_Wall%2327.pdf
first_indexed	2023-09-18T20:44:39Z
last_indexed	2023-09-18T20:44:39Z
_version_	1777409593832374272

Wall thinning and creep damage analysis in boiler tube and optimization of operating conditions

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