A numerical analysis of transpiration cooling as an air cooling mechanism

Kılıç, Mustafa

doi:10.1007/s00231-018-2391-6

Cited by 21 publications

(7 citation statements)

References 23 publications

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“…Many numerical simulations of transpiration cooling have also been performed by researchers, which are mainly grouped into single-phase transpiration cooling and phasechange transpiration cooling [123]. For single-phase transpiration cooling, different kinds of turbulence models are adopted, such as the Spalart-Allmaras turbulence model [43,127], the k-ε turbulence model [128][129][130][131][132][133], and the k-ω SST turbulence model [134][135][136][137].…”

Section: Numerical Studymentioning

confidence: 99%

Heat Transfer, Combustion and Flow Dynamics in Propulsion Systems

2023

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Section: Numerical Studymentioning

confidence: 99%

Heat Transfer, Combustion and Flow Dynamics in Propulsion Systems

2023

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“…Heris, Shokrgozar [17] identified that the nanometer size particles, when dissolved in any traditional conventional fluids, will increase the heat transfer. Different works of literature pronounced that the thermal execution of various heat systems can be improvised by adopting various Nano-fluids with nanoparticles like Al 2 O 3 , CuO, and Graphene as an active working fluid [18][19][20][21]. Graphene, as a Nano-fluid, is used intensively as a cooling element [22].…”

Section: Theorymentioning

confidence: 99%

Heat transfer performance of a radiator with and without louvered strip by using Graphene-based nanofluids

Sandhya

Ramasamy

Sudhakar

et al. 2021

Journal of Thermal Engineering

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The present work is focused on the Graphene-based nanofluids with high thermal conductivity which helps to improve the performance and enhance heat transfer. The thermal systems emphasis on the fluid coolant selection and statistical model. Graphene is a super-material, lighter than air, high thermal conductivity, and chemical stability. The purpose of the research is to work up with Graphene-based Nanofluids i.e., Graphene (G) and Graphene oxide (GO). Nanoparticles are dispersed in a base fluid with a 60:40 ratio Water & Ethylene Glycol and at different volume concentrations ranging from 0.01%-0.09%. Radiator model is designed in modelling software and louvered strip is inserted. The simulation (Finite Element Analysis) is performed to evaluate variation in temperature drop, enthalpy, entropy, heat transfer coefficient and total heat transfer rate of the considered nanofluids, results were compared by with and without louvered strip in the radiator for the temperature absorption. 58-60% enhancement of enthalpy observed when Graphene and Graphene oxide nanofluid was utilized. 1.8% enhancement of entropy is observed in 0.09% volume concentration of the Graphene and Graphene oxide nanofluid when louvered strips are inserted in the radiator tube at a flow rate of 3 LPM. With louvered strip inserted in the radiator, heat transfer coefficient enhanced by 236% for Graphene and 320% enhancement is identified for Graphene oxide nanofluid when compared to without louvered strip insert. The results stated that high performance is observed with the utilization of louvered strip in the radiator tube.

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“…The applications of nanofluids are found in various fields like electronics [4,5], solar energy [6][7][8], nuclear reactors [9][10][11], pool boiling [12,13], automotive industry [14][15][16], medical [17][18][19], food industry [20,21], machining processes [22][23][24][25], and in heating and cooling of buildings [26,27]. In comparison to single nanoparticle fluids and traditional fluids, the nanofluids demonstrated improved thermal characteristics [28][29][30][31][32][33][34][35][36]. So, this field looks emerging for future studies.…”

Section: Introductionmentioning

confidence: 99%

Hybrid nanofluids development and benefits: A comprehensive review

SUNEETHA

SUBBARAYUDU²,

REDDY

2022

Journal of Thermal Engineering

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Hybrid nanofluids (HNFs) have received the prominent attention of researchers due to their improved thermophysical properties than conventional liquids and single-phase nanofluids. Such high potential heat transfer fluids are obtained from the suspension of two or more dissimilar nanoparticles in a regular heat transfer liquid. Owing to the high heat transfer properties of hybrid nanofluid, these are widely used in industrial processes, manufacturing processes, and biomedical engineering. This framework presents a detailed review of hybrid nanofluids preparation, stability, thermophysical properties, and importance in various engineering fields. Furthermore, present analysis addresses the pH control and ultrasound intensity of hybrid nanofluid. This analysis also manifests a hybrid nanofluid preparation method and suitable nanoparticles mixers for various industrial uses. This study reveals some future trends and possibilities related to HNF and a few suggestions regarding the scope in the future research in this area. A big impact with small particles for coming years. The hybrid nanofluid are having higher thermal conductivity which affects significantly to machining output response variables. By hybridizing the suitable combination of nanoparticles, the required heat transfer effect can be obtained still at low particle concentrations.

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A numerical analysis of transpiration cooling as an air cooling mechanism

Cited by 21 publications

References 23 publications

Heat Transfer, Combustion and Flow Dynamics in Propulsion Systems

Heat Transfer, Combustion and Flow Dynamics in Propulsion Systems

Heat transfer performance of a radiator with and without louvered strip by using Graphene-based nanofluids

Hybrid nanofluids development and benefits: A comprehensive review

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