Numerical Investigation of Heat Transfer From a Porous Plate With Transpiration Cooling

Kılıç, Mustafa

doi:10.18186/journal-of-thermal-engineering.362048

Cited by 7 publications

(3 citation statements)

References 26 publications

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“…The volume concentration is 0.01, 0.03, 0.05 and 0.09. The density, specific heat, thermal conductivity, and viscosity were calculated based on equations (2),(3),( 4) and (11). The pressure drops, temperature drop, enthalpy, entropy, heat transfer coefficients etc., are estimated by using CFD.…”

Section: Methodology For the Simulationmentioning

confidence: 99%

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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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Section: Methodology For the Simulationmentioning

confidence: 99%

“…Generally, water, ethylene glycol (antifreeze), oil is used as traditional fluids [10,11]. In the past decade's number of researchers have carried various investigations to increase the thermal properties of the conventional fluids [12,13].…”

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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“…Porous media were used not only as burners but also heat transfer enhancement [42][43][44][45]. Furthermore, porous burners have been used to burn low grade fuel that have low-calorific value.…”

Section: Introductionmentioning

confidence: 99%

Experimental study of combustion of low-calorific producer gas from small scale biomass gasification within porous burner

Jirakulsomchok¹,

Wongchang²,

Prasartthong³

2021

Journal of Thermal Engineering

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The aim of this experimental study is to investigate the combustion low-calorific producer gas within porous burner. The small scale downdraft biomass gasification for rural area was performed to produce gaseous fuel. Three types of wood in Thailand were used as raw materials to produce producer gas, i.e. Acacia-mangium, White popinac and Eucalyptus. The low heating values of producer gas were in the range of 3800-4232 kJ.kg -1 that are difficult to burn in conventional burner. Tapered and bilayer porous burners were used to overcome this limitation. The effects of air preheating modes, equivalence ratio and firing rate on thermal structure and pollutant emission were revealed. The results showed that the complete combustion with low emission of low-calorific producer gas was accomplished with low firing rate in the range of 2.8 -3 kW. Both CO and NO x emission were less than 160 ppm for all of tests. The combustion within tapered porous burner emitted small CO emission nearly zero for all of equivalence ratios. The tar reduction was 99.5% by combustion within porous burner.

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Reliable prediction of thermophysical properties of nanofluids for enhanced heat transfer in process industry: a perspective on bridging the gap between experiments, CFD and machine learning

Ullah

Kılıç

Habib

et al. 2023

J Therm Anal Calorim

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Numerical Investigation of Heat Transfer From a Porous Plate With Transpiration Cooling

Cited by 7 publications

References 26 publications

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

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

Experimental study of combustion of low-calorific producer gas from small scale biomass gasification within porous burner

Reliable prediction of thermophysical properties of nanofluids for enhanced heat transfer in process industry: a perspective on bridging the gap between experiments, CFD and machine learning

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