Review of heat transfer augmentation methods and effect of using dimpled ribs and nanofluids

Suri, Amar Raj Singh; Pun, Anant Krishan; Haque, Shazli Al

doi:10.1016/j.matpr.2021.05.702

Cited by 6 publications

(3 citation statements)

References 47 publications

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“…Researchers have generally focused on lots of ways such as twisted tapes (Gürsoy et al, 2022a(Gürsoy et al, , 2022b, baffles (El-Said et al, 2021), winglets (Promvonge et al, 2021), extended surfaces (Zaboli et al, 2021), porous materials (Chakravarty et al, 2021), coil inserts (Dinh et al, 2022), rough surfaces (Gürsoy et al, 2023), mono, hybrid and ternary nanofluids (Dezfulizadeh et al, 2022;Said et al, 2022;Sirine et al, 2022). For instance, rough surface, which includes dimpled fins (DFs), is one of the prominent passive techniques in the geometric improvement, and this phenomenon has been investigated by numerous researchers in the literature (Gürdal et al, 2022a(Gürdal et al, , 2022b(Gürdal et al, , 2022cSuri et al, 2022; Magnetoconvection characteristics Malapur et al, 2023) conducted a computational analyse on five different dimpled tubes (DT). Researchers have aimed to investigate the effect of DF and compare it with the smooth tube (ST).…”

Section: Introductionmentioning

confidence: 99%

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Investigation of magneto-convection characteristics in a sudden expanding channel with convex surface geometry under thermally developing flow conditions

Gürsoy,

Pazarlioğlu,

Gürdal

et al. 2024

HFF

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Purpose The purpose of this study is to analyse the magnetic field effect on Fe3O4/H2O Ferrofluid flowing in a sudden expansion tube, which has specific behaviour in terms of rheology, with convex dimple fins. Because the investigation of flow separation is a prominent application in performance, the effect of magnetic field and convex dimple on the thermo-hydraulic performance of sudden expansion tube are examined, in detail. Design/methodology/approach During the solution of the boundary conditions of the sudden expansion tube, finite volume method was used. Analyses have been conducted considering the single-phase solution, steady-state, incompressible fluid and no-slip condition of the wall under forced convection conditions. In the analyses, it has been assumed that the flow was developing thermally and has been fully developed hydrodynamically. Findings The present study focuses on exploring the influence of the magnetic field, nanofluid concentration and convex dimple fins on the thermo-hydraulic performance of sudden expansion tube. The results indicate that the strength of the magnetic field, nanofluid concentration and convex dimple fins have a positive effect on the convective heat transfer in the system. Originality/value The authors conducted numerical studies, determining through a literature search that no one had yet investigated enhancing heat transfer on a sudden expansion tube using combinations of magnetic fields, nanofluids and convex dimple fins. The results of the numerical analyses provide valuable information about the improvement of heat transfer and system performance in electronic device cooling and heat exchangers.

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Section: Introductionmentioning

confidence: 99%

“…For instance, rough surface, which includes dimpled fins ( DFs ), is one of the prominent passive techniques in the geometric improvement, and this phenomenon has been investigated by numerous researchers in the literature (Gürdal et al. , 2022a, 2022b, 2022c; Suri et al. , 2022; Malapur et al.…”

Section: Introductionmentioning

confidence: 99%

Investigation of magneto-convection characteristics in a sudden expanding channel with convex surface geometry under thermally developing flow conditions

Gürsoy,

Pazarlioğlu,

Gürdal

et al. 2024

HFF

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“…For instance, rough surface, which includes dimpled fins (DFs), is one of the prominent passive techniques in the geometric improvement, and this phenomenon has been investigated by numerous researchers in the literature [7,8]. Malapur et al [9] conducted a computational analyses on five different dimpled tubes (DT).…”

Section: Introductionmentioning

confidence: 99%

Investigation of Magneto-Convection Characteristics in A Sudden Expanding Channel with Convex Surface Geometry Under Thermally Developing Flow Conditions

Gürsoy,

Pazarlıoğlu,

Gürdal

et al. 2023

Preprint

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The current study presents a novelty with focusing on the magnetic field effect on a sudden expansion tube with expansion ratio, total length, and pitch length of the dimpled fin is 2.5, 1500 mm, and 3.0, respectively. The magnetizable Fe3O4/H2O Ferrofluid with different nanoparticle volumetric concentrations (φ = 1.0% and 2.0%) were used as a heat transfer fluid, and magnetohydrodynamic effects were elaborately investigated in this study. The numerical analysis was conducted under laminar flow regime and the DC magnetic field (B0 = 0.03T, 0.05T, 0.3T, and 0.5T). The present study provided a comprehensive investigation, which presented the thermo-hydraulic performance of difference dimpled fins, Fe3O4/H2O Ferrofluid, and magnetic field. According to the results, dimple fins showed the best increment within heat transfer enhancement techniques. The heat transfer enhancement rate of the dimple tube and Fe3O4/H2O Ferrofluid were respectively acquired as 22.62% and 5.43%-6.28% (φ = 1.0% and 2.0%). When dimpled fin and Fe3O4/H2O Ferrofluid were used, the increment in Performance Evaluation Criteria was calculated as 21.31% and 4.85%-9.79% (φ = 1.0% and 2.0%). Although the highest average Nusselt number was obtained at B0 = 0.5T, the highest performance evaluation criteria were detected at B0 = 0.3T due to the friction factor showing an increment.

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Heat transfer augmentation through rectangular cross section duct with one corrugated surface: An experimental and numerical study

Zahran

Sultan²,

Bekheit³

et al. 2022

Case Studies in Thermal Engineering

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Review of heat transfer augmentation methods and effect of using dimpled ribs and nanofluids

Cited by 6 publications

References 47 publications

Investigation of magneto-convection characteristics in a sudden expanding channel with convex surface geometry under thermally developing flow conditions

Investigation of magneto-convection characteristics in a sudden expanding channel with convex surface geometry under thermally developing flow conditions

Investigation of Magneto-Convection Characteristics in A Sudden Expanding Channel with Convex Surface Geometry Under Thermally Developing Flow Conditions

Heat transfer augmentation through rectangular cross section duct with one corrugated surface: An experimental and numerical study

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