Thermo-structural fatigue and lifetime analysis of a heat exchanger as a feedwater heater in power plant

dc.contributor.authorHoseinzadeh, Siamak
dc.contributor.authorHeyns, P.S. (Philippus Stephanus)
dc.contributor.emailhosseinzadeh.siamak@up.ac.zaen_ZA
dc.date.accessioned2020-10-02T13:11:32Z
dc.date.issued2020-07
dc.description.abstractToday, the use of shell and tube heat exchangers has become widespread and they are used in various industries under very diverse operating conditions. Specific operating conditions make it possible to consider and simulate the operating terms and failure conditions of these converters. In this study, the design of a shell-and-tube counter-flow heat exchanger in AutoCAD software is first considered, and the system is then meshed and simulated in ANSYS 2019 software. Simulation results of temperature, pressure, heat flux and fluid velocity within the system are reported in order to understand the system performance. Failure conditions are evaluated according to the ASME VIII Boiler and Pressure Vessel Code, and the results of equivalent thermal stress analysis and system lifetime under two extreme loading conditions are reported. The highest equivalent thermal stresses under these extreme load conditions occur at the joints of the tubes and tubes sheet and is equal to 641 and 931 MPa, respectively. Also, the lifetimes of tubes and tube sheets are 105 and 104 cycles respectively for the valley and peak load conditions.en_ZA
dc.description.departmentMechanical and Aeronautical Engineeringen_ZA
dc.description.embargo2021-07-01
dc.description.librarianhj2020en_ZA
dc.description.urihttp://www.elsevier.com/locate/engfailanalen_ZA
dc.identifier.citationHoseinzadeh, S. & Heyns, P.S. 2020, 'Thermo-structural fatigue and lifetime analysis of a heat exchanger as a feedwater heater in power plant', Engineering Failure Analysis, vol. 113, art. 104548, pp. 1-13.en_ZA
dc.identifier.issn1350-6307 (print)
dc.identifier.issn1873-1961 (online)
dc.identifier.other10.1016/j.engfailanal.2020.104548
dc.identifier.urihttp://hdl.handle.net/2263/76322
dc.language.isoenen_ZA
dc.publisherElsevieren_ZA
dc.rights© 2020 Elsevier Ltd. All rights reserved. Notice : this is the author’s version of a work that was accepted for publication in Engineering Failure Analysis. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. A definitive version was subsequently published in Engineering Failure Analysis, vol. 113, art. 104548, pp. 1-13, 2020. doi : 10.1016/j.engfailanal.2020.104548.en_ZA
dc.subjectHeat exchangeren_ZA
dc.subjectEquivalent thermal stressen_ZA
dc.subjectFluid simulationen_ZA
dc.subjectFatigueen_ZA
dc.subjectLifetime analysisen_ZA
dc.subject.otherEngineering, built environment and information technology articles SDG-04
dc.subject.otherSDG-04: Quality education
dc.subject.otherEngineering, built environment and information technology articles SDG-07
dc.subject.otherSDG-07: Affordable and clean energy
dc.subject.otherEngineering, built environment and information technology articles SDG-09
dc.subject.otherSDG-09: Industry, innovation and infrastructure
dc.subject.otherEngineering, built environment and information technology articles SDG-12
dc.subject.otherSDG-12: Responsible consumption and production
dc.titleThermo-structural fatigue and lifetime analysis of a heat exchanger as a feedwater heater in power planten_ZA
dc.typePostprint Articleen_ZA

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