Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/80441
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dc.contributor.authorRamezanizadeh, Men_US
dc.contributor.authorNazari, MAen_US
dc.contributor.authorAhmadi, MHen_US
dc.contributor.authorChau, KWen_US
dc.date.accessioned2019-03-26T09:17:11Z-
dc.date.available2019-03-26T09:17:11Z-
dc.date.issued2019-
dc.identifier.citationEngineering applications of computational fluid mechanics, 1 Jan. 2019, v. 13, no. 1, p. 40-47en_US
dc.identifier.issn1994-2060-
dc.identifier.urihttp://hdl.handle.net/10397/80441-
dc.description.abstractThermosyphons have high effective thermal conductivity and are applicable for different heat transfer purposes including cooling devices and heat exchangers. In the present study, thermal performance of a thermosyphon is experimentally investigated by using Ni/Glycerol-water nanofluid in three concentrations including 0.416, 0.625 and 1.25 g/lit. Experimental results revealed that using the nanofluid with 0.625 g/lit concentration leads to lowest thermal resistances. Afterwards, a thermosyphon-based heat exchanger is designed and numerically investigated to compare its performance with copper heat exchanger. Since the effective thermal conductivity of thermosyphon depends on temperature difference between condenser and evaporator, a novel approach is applied to achieve precise modeling. Effects of mass flow rates of cold and streams and inlet temperature of hot stream on heat transfer rate are evaluated. Results revealed that using thermosyphon instead of copper tubes with the same dimensions results in more than 100% improvement in heat transfer capacity. Moreover, it is concluded that increase in the mass flow rates of the streams and inlet temperature of hot stream lead to increase in heat transfer rate. A 3D graph is represented to evaluate the influences of hot stream temperature and mass flow rate on the heat transfer rate of thermosyphon-based heat exchanger.en_US
dc.description.sponsorshipDepartment of Civil and Environmental Engineeringen_US
dc.language.isoenen_US
dc.publisherHong Kong Polytechnic University, Department of Civil and Structural Engineeringen_US
dc.relation.ispartofEngineering applications of computational fluid mechanicsen_US
dc.rights© 2018 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis GroupThis is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use,distribution, and reproduction in any medium, provided the original work is properly cited.en_US
dc.rightsThe following publication Ramezanizadeh, M., Nazari, M. A., Ahmadi, M. H., & Chau, K. W. (2019). Experimental and numerical analysis of a nanofluidic thermosyphon heat exchanger. Engineering Applications of Computational Fluid Mechanics, 13(1), 40-47 is available at https://dx.doi.org/10.1080/19942060.2018.1518272en_US
dc.subjectThermosyphonen_US
dc.subjectNanofluiden_US
dc.subjectHeat exchangeren_US
dc.subjectThermal conductivityen_US
dc.titleExperimental and numerical analysis of a nanofluidic thermosyphon heat exchangeren_US
dc.typeJournal/Magazine Articleen_US
dc.identifier.spage40-
dc.identifier.epage47-
dc.identifier.volume13-
dc.identifier.issue1-
dc.identifier.doi10.1080/19942060.2018.1518272-
dc.identifier.isiWOS:000451548200001-
dc.identifier.eissn1997-003X-
dc.description.validate201903 bcrc-
dc.description.oapublished_final-
Appears in Collections:Journal/Magazine Article
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