Investigation of the effect of magnetic field on the PEC and exergy of heat exchanger filled with two-phase hybrid nanofluid, equipped with an edged twisted tape
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Dosyalar
Tarih
2023
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Elsevier Ltd
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
In this study, the effect of using hybrid nanofluid and helical twisted tape (HTT) on the exergy efficiency and thermo-hydraulic performance of a heat exchanger is investigated numerically using the finite volume method (FVM). Also, Solidworks is used to sketch the geometry. The study is carried out by assuming the steady state flow using the pressure-based solver. Simulations of Cu-ZnO/water hybrid nanofluids are based on the mixture model. The Reynolds number (Re) changes from 10,000 to 40,000, volume fraction (?) vary from 1 to 5%, and pitch ratio (PR) is of 1, 2, 3, and 4. The results demonstrate that the average Nusselt number (Nuav) and thermal performance of the heat exchanger are enhanced with Re and ?. At ? = 5% and Re = 40,000, placing a HTT with a PR of 4 causes the pressure drop (?P) to enhance by 180.97% In comparison with a collector without a solar panel a turbulator. In addition, in the heat exchanger with a HTT with a PR of 4 and ? = 5%, the exergy efficiency is increased by 38.89% as Re is enhanced from 10,000 to 40,000. The use of a magnetic field causes the PEC in the heat exchanger to become greater than 1 in all cases. Also, the maximum exergy efficiency occurs when a magnetic field is applied at Re = 20,000 and a Hartmann number (Ha) of 150. © 2022 Elsevier Ltd
Açıklama
Anahtar Kelimeler
Exergy efficiency, Heat exchanger, Hybrid nanofluid, Magnetic field, Twisted tape, Two-phase model, Efficiency, Exergy, Finite volume method, Heat exchangers, II-VI semiconductors, Nanofluidics, Reynolds number, Zinc oxide, Effect of magnetic field, Exergy efficiencies, Finite-volume method, Hybrid nanofluid, Magnetic-field, Pitch ratio, Thermo-hydraulic performance, Twisted tapes, Two phase, Two-phase model, Magnetic fields
Kaynak
Engineering Analysis with Boundary Elements
WoS Q Değeri
Q1
Scopus Q Değeri
Q1
Cilt
148
