Convection heat transfer, entropy generation analysis and thermodynamic optimization of nanofluid flow in spiral coil tube

dc.contributor.authorKadivar, Mohammadreza
dc.contributor.authorSharifpur, Mohsen
dc.contributor.authorMeyer, Josua P.
dc.contributor.emailmohsen.sharifpur@up.ac.zaen_US
dc.date.accessioned2022-12-02T09:33:45Z
dc.date.available2022-12-02T09:33:45Z
dc.date.issued2021
dc.description.abstractIn this study, heat transfer, flow characteristics, and entropy generation of turbulent TiO2/water nanofluid flow in the spiral coil tube were analytically investigated considering the nanoparticle volume fraction, curvature ratio, flow rate and inlet temperature between 0.01–0.05 percent, 0.03–0.06, 1.3–3.3 l/min, and 15–27 °C, respectively. Results showed that the augmentation of the nanoparticle volume fraction increased the Nusselt number and friction factor up to 11.9% and 1.1%, respectively, while it reduced the entropy generation number up to 10.9%. Reducing the curvature ratio led to a maximum of 11.1% increase in the Nusselt number, while it resulted in a 5.6% increase in the entropy generation number. A decline in the inlet temperature from 21 °C to 15 °C proceeded a 28.4% and 7.1% increase in the heat transfer and pressure drop, respectively. The total entropy generation reduced with increasing nanoparticle volume fraction. For a low Reynolds number, a decrease in the curvature ratio led to a reduction in the total entropy generation, while reducing the curvature ratio was detrimental for a high Reynolds number. Analytical relations for optimum curvature ratio and optimum Reynolds number were derived. For the range of parameters studied in this paper, a range of optimum Reynolds number from 9000 to 12,000 was proposed.en_US
dc.description.departmentMechanical and Aeronautical Engineeringen_US
dc.description.librarianhj2022en_US
dc.description.urihttp://www.tandfonline.com/loi/uhte20en_US
dc.identifier.citationMohammadreza Kadivar, Mohsen Sharifpur & Josua P. Meyer (2021) Convection Heat Transfer, Entropy Generation Analysis and Thermodynamic Optimization of Nanofluid Flow in Spiral Coil Tube, Heat Transfer Engineering, 42:18, 1573-1589, DOI: 10.1080/01457632.2020.1807103.en_US
dc.identifier.issn0145-7632 (print)
dc.identifier.issn10.1080/01457632.2020.1807103
dc.identifier.issn1521-0537 (online)
dc.identifier.urihttps://repository.up.ac.za/handle/2263/88611
dc.language.isoenen_US
dc.publisherTaylor and Francisen_US
dc.rights© 2021 Taylor & Francis Group, LLC. This is an electronic version of an article published in Heat Transfer Engineering, vol. 42, no. 18, pp. 1573-1589, 2021. doi : 10.1080/01457632.2020.1807103. Heat Transfer Engineering is available online at : http://www.tandfonline.comloi/uhte20.en_US
dc.subjectConvection heat transferen_US
dc.subjectEntropy generation analysisen_US
dc.subjectThermodynamic optimizationen_US
dc.subjectNanofluid flowen_US
dc.subjectSpiral coil tubeen_US
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.titleConvection heat transfer, entropy generation analysis and thermodynamic optimization of nanofluid flow in spiral coil tubeen_US
dc.typePostprint Articleen_US

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