Numerical investigation of laminar forced convection and entropy generation of Fe3O4/water nanofluids in different cross-sectioned channel geometries

Edip TAŞKESEN, (Enerji Sistemleri Mühendisliği Bölümü, Teknoloji Fakültesi, Karabük Üniversitesi, Karabük, Türkiye)
Mutlu TEKİR, (Karabük Üniversitesi, Mühendislik Fakültesi, Tıp Mühendisliği Bölümü, Karabük, Türkiye)
Engin Gedik, (Enerji Sistemleri Mühendisliği Bölümü, Teknoloji Fakültesi, Karabük Üniversitesi, Karabük, Türkiye)
Kamil ARSLAN (Karabük Üniversitesi, Mühendislik Fakültesi, Makine Mühendisliği Bölümü, Karabük, Türkiye)
Journal of Thermal Engineering
1 0
Yıl: 2021 Cilt: 7 Sayı: 7 Sayfa Aralığı: 1752 - 1767 Metin Dili: İngilizce DOI: 10.18186/thermal.1025984 İndeks Tarihi: 08-05-2023

Numerical investigation of laminar forced convection and entropy generation of Fe3O4/water nanofluids in different cross-sectioned channel geometries

Öz:
In this study, forced convection of nanofluid flow in various channel geometries with a hydrau- lic diameter of 16 mm and length of 1.5 m under laminar flow condition has been investigated numerically. Constant heat flux of 6 kW/m2 has been applied on to the surfaces of the channels. Fe3O4/water nanofluid has been used in the analyses to enhance the convective heat transfer of the base fluid. Analyses have been performed for Reynolds numbers between 500≤Re≤2000, and for volume concentrations of nanoparticles between 1% and 5% in cylindrical, square, rectangle, and triangle cross-sectioned channel geometries. The finite volume discretization method has been used to solve the governing equations. The effects of some parameters; Reynolds number, nanoparticle volume fractions, channel geometries on the average Nusselt number, Darcy friction factor and entropy generation have been investigated in detail. The results indicate that nanofluid offers further convective heat transfer enhancement according to base fluid and cylindrical cross-sectioned channel gives the best heat transfer performance among other cross-sectioned channel geometries. Using water as a working fluid, cylindrical cross-sectioned channel geometry gives the highest heat transfer rate among other channel geometries, whereas triangle one gives the lowest. Cylindrical cross-sectioned channel geom- etry offers up to 77.6% enhancement compared to triangle cross-sectioned channel geom- etry for the same hydraulic diameter and same heat flux. However, triangle cross-sectioned channel geometry has highest convective heat transfer increment ratio (4.12%) for changing working fluid as water to nanofluid. Also, some new Nu correlations based on the channel geometries and nanoparticle volume fractions were proposed in the present study.
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APA taşkesen e, Tekir M, Gedik E, ARSLAN K (2021). Numerical investigation of laminar forced convection and entropy generation of Fe3O4/water nanofluids in different cross-sectioned channel geometries. , 1752 - 1767. 10.18186/thermal.1025984
Chicago taşkesen edip,Tekir Mutlu,Gedik Engin,ARSLAN Kamil Numerical investigation of laminar forced convection and entropy generation of Fe3O4/water nanofluids in different cross-sectioned channel geometries. (2021): 1752 - 1767. 10.18186/thermal.1025984
MLA taşkesen edip,Tekir Mutlu,Gedik Engin,ARSLAN Kamil Numerical investigation of laminar forced convection and entropy generation of Fe3O4/water nanofluids in different cross-sectioned channel geometries. , 2021, ss.1752 - 1767. 10.18186/thermal.1025984
AMA taşkesen e,Tekir M,Gedik E,ARSLAN K Numerical investigation of laminar forced convection and entropy generation of Fe3O4/water nanofluids in different cross-sectioned channel geometries. . 2021; 1752 - 1767. 10.18186/thermal.1025984
Vancouver taşkesen e,Tekir M,Gedik E,ARSLAN K Numerical investigation of laminar forced convection and entropy generation of Fe3O4/water nanofluids in different cross-sectioned channel geometries. . 2021; 1752 - 1767. 10.18186/thermal.1025984
IEEE taşkesen e,Tekir M,Gedik E,ARSLAN K "Numerical investigation of laminar forced convection and entropy generation of Fe3O4/water nanofluids in different cross-sectioned channel geometries." , ss.1752 - 1767, 2021. 10.18186/thermal.1025984
ISNAD taşkesen, edip vd. "Numerical investigation of laminar forced convection and entropy generation of Fe3O4/water nanofluids in different cross-sectioned channel geometries". (2021), 1752-1767. https://doi.org/10.18186/thermal.1025984
APA taşkesen e, Tekir M, Gedik E, ARSLAN K (2021). Numerical investigation of laminar forced convection and entropy generation of Fe3O4/water nanofluids in different cross-sectioned channel geometries. Journal of Thermal Engineering, 7(7), 1752 - 1767. 10.18186/thermal.1025984
Chicago taşkesen edip,Tekir Mutlu,Gedik Engin,ARSLAN Kamil Numerical investigation of laminar forced convection and entropy generation of Fe3O4/water nanofluids in different cross-sectioned channel geometries. Journal of Thermal Engineering 7, no.7 (2021): 1752 - 1767. 10.18186/thermal.1025984
MLA taşkesen edip,Tekir Mutlu,Gedik Engin,ARSLAN Kamil Numerical investigation of laminar forced convection and entropy generation of Fe3O4/water nanofluids in different cross-sectioned channel geometries. Journal of Thermal Engineering, vol.7, no.7, 2021, ss.1752 - 1767. 10.18186/thermal.1025984
AMA taşkesen e,Tekir M,Gedik E,ARSLAN K Numerical investigation of laminar forced convection and entropy generation of Fe3O4/water nanofluids in different cross-sectioned channel geometries. Journal of Thermal Engineering. 2021; 7(7): 1752 - 1767. 10.18186/thermal.1025984
Vancouver taşkesen e,Tekir M,Gedik E,ARSLAN K Numerical investigation of laminar forced convection and entropy generation of Fe3O4/water nanofluids in different cross-sectioned channel geometries. Journal of Thermal Engineering. 2021; 7(7): 1752 - 1767. 10.18186/thermal.1025984
IEEE taşkesen e,Tekir M,Gedik E,ARSLAN K "Numerical investigation of laminar forced convection and entropy generation of Fe3O4/water nanofluids in different cross-sectioned channel geometries." Journal of Thermal Engineering, 7, ss.1752 - 1767, 2021. 10.18186/thermal.1025984
ISNAD taşkesen, edip vd. "Numerical investigation of laminar forced convection and entropy generation of Fe3O4/water nanofluids in different cross-sectioned channel geometries". Journal of Thermal Engineering 7/7 (2021), 1752-1767. https://doi.org/10.18186/thermal.1025984
Sayfa Oluşturulma Tarihi
24-04-2024 6:51

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