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

Πολυκάρπουλος, Πέτρος; Polykarpoulos, Petros

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