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Υπολογιστική ανάλυση ροής νανορρευστών σε καταβόθρα θερμότητας μικροκαναλιού και θερμαντικό σώμα εξαναγκασμένης κυκλοφορίας

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dc.contributor.author Πολυκάρπουλος, Πέτρος el
dc.contributor.author Polykarpoulos, Petros en
dc.date.accessioned 2017-12-08T11:17:42Z
dc.date.available 2017-12-08T11:17:42Z
dc.date.issued 2017-12-08
dc.identifier.uri https://dspace.lib.ntua.gr/xmlui/handle/123456789/46048
dc.identifier.uri http://dx.doi.org/10.26240/heal.ntua.14864
dc.rights Default License
dc.subject Νανορρευστά el
dc.subject Μεταφορά θερμότητας el
dc.subject Εναλλάκτες θερμότητας el
dc.subject Συναγωγή θερμότητας el
dc.subject Υπολογιστική ρευστομηχανική el
dc.subject Nanofluids en
dc.subject Computational heat transfer el
dc.subject Heat transfer el
dc.subject Heat convection el
dc.subject Heat exchanger el
dc.title Υπολογιστική ανάλυση ροής νανορρευστών σε καταβόθρα θερμότητας μικροκαναλιού και θερμαντικό σώμα εξαναγκασμένης κυκλοφορίας el
dc.title Computational analysis of nanofluid flow in microchannel heat sink and fan coil model en
heal.type bachelorThesis
heal.classification Μεταφορά θερμότητας el
heal.language el
heal.access free
heal.recordProvider ntua el
heal.publicationDate 2017-10-12
heal.abstract Υπολογιστική ανάλυση ροής νανορρευστών σε καταβόθρα θερμότητας μικροκαναλιού (microchannel heat sink) και θερμαντικό σώμα εξαναγκασμένης κυκλοφορίας (fan coil). el
heal.abstract The objective of this thesis is the examination of nanofluid applications in heat transfer systems and the comparison with conventional heat transfer fluids, from a thermophysical and fluid mechanical point of view. In the first chapter are defined the concept and the physical mechanisms of heat transfer. In chapter two are presented the fundamentals of nanofluids science, such as their historical background, the heat transfer mechanisms in nanofluids, manufacture and dispersion – stabilization techniques, their rheological behavior, nanoparticle types, the numerous nanofluid applications and the challenges of nanofluid technology. In the third chapter is conducted a bibliographic review of nanofluid applications in heat transfer systems, their advantages and disadvantages, and are reported recent experimental nanofluid applications in double pipe, shell – tube and flat plate heat exchangers, as well as in automotive and electronics cooling applications. In the fourth chapter is computationally examined the application of four nanofluid types, which contain ethylene – water as base fluid, in a Microchannel Heat Sink, a system used in electronics cooling. There are researched the thermophysical and fluid mechanical effects of the addition of nanoparticles in the base fluid. In the fifth chapter is computationally investigated the application of four nanofluid types, which contain water as base fluid, in a Fan Coil setup. The alteration of the basic thermophysical and fluid mechanical units is examined and is conducted a comparison between the various nanofluids and the base fluid, in terms of their efficiency as heat transfer fluids. In the sixth chapter are analyzed the final conclusions of the computational models and are presented the basic selection criteria of nanofluids as heat transfer fluids. In conclusion, is reported the necessity of a credible computational model for nanofluid properties and the various future challenges for the expansion of nanofluids in integrated, commercial applications. en
heal.advisorName Κορωνάκη, Ειρήνη el
heal.committeeMemberName Κορωνάκη, Ειρήνη el
heal.committeeMemberName Ρογδάκης, Εμμανουήλ el
heal.committeeMemberName Τζιβανίδης, Χρήστος el
heal.academicPublisher Εθνικό Μετσόβιο Πολυτεχνείο. Σχολή Μηχανολόγων Μηχανικών. Τομέας Θερμότητας el
heal.academicPublisherID ntua
heal.numberOfPages 136 σ.
heal.fullTextAvailability true


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