Degradation study of heat exchangers

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dc.contributor.authorAddepalli, Sri
dc.contributor.authorEiroa, David
dc.contributor.authorLieotrakool, Suphansa
dc.contributor.authorFrancois, Anne-Laure
dc.contributor.authorGuisset, Juliette
dc.contributor.authorSanjaime, David
dc.contributor.authorKazarian, Michele
dc.contributor.authorDuda, Julia
dc.contributor.authorRoy, Rajkumar
dc.contributor.authorPhillips, Paul
dc.date.accessioned2016-08-24T14:24:11Z
dc.date.available2016-08-24T14:24:11Z
dc.date.issued2015-10-27
dc.description.abstractAbstract This study mainly deals with the evaluation of various degradation mechanisms that heat exchangers are susceptible to with an aim of evaluating future design requirements. A heat exchanger is a heat management system that uses fluids to transfer heat from one medium to the other; the most common types of fluids being air, water, oil or specialised coolant mixtures. As part of this study a failure analysis of heat exchangers was carried out on selected heat exchangers used in both aerospace and automotive sectors. This study was then extended to designing test-rigs supporting two types of heat exchangers. For this study, an air-to-air and an oil-to-air heat exchanger test rigs were designed. Temperature, pressure and flow sensors were introduced in the test rig designs to monitor the flow characteristics in order to determine if degradations occurring as a result of operation have an impact on them. As part of the initial evaluation both visual inspection and pulsed thermography inspection were selected as suitable inspection methods to evaluate their in-service condition. Some heat exchanger units where then subjected to accelerated corrosion tests and their performance was monitored using scanning electron microscopy (SEM) measurements. The outcomes of the study presented in this paper confirm the suitability and adaptability of thermography in detecting degradations occurring in heat exchangers.en_UK
dc.identifier.citationSri Addepalli, David Eiroa, Suphansa Lieotrakool, Anne-Laure François, Juliette Guisset, David Sanjaime, Michele Kazarian, Julia Duda, Rajkumar Roy. Degradation study of heat exchangers. Procedia CIRP, Volume 38, 2015, pp137-142. Proceedings of the 4th International Conference on Through-life Engineering ServicesDegradation Study of Heat Exchangersen_UK
dc.identifier.issn2212-8271
dc.identifier.urihttp://dx.doi.org/10.1016/j.procir.2015.07.057
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/10427
dc.language.isoenen_UK
dc.publisherElsevieren_UK
dc.rightsAttribution 4.0 International (CC BY 4.0) You are free to: Share — copy and redistribute the material in any medium or format, Adapt — remix, transform, and build upon the material for any purpose, even commercially. The licensor cannot revoke these freedoms as long as you follow the license terms. Under the following terms: Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. Information: No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.
dc.subjectDegradationen_UK
dc.subjectHeat exchangersen_UK
dc.subjectPassive Thermographyen_UK
dc.subjectPulsed Thermographyen_UK
dc.titleDegradation study of heat exchangersen_UK
dc.typeArticleen_UK

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