Experimental investigation on heat transfer and flow resistance of drag-reducing alumina nanofluid in a fin-and-tube heat exchanger

Raei, Behrouz; Peyghambarzadeh, S.M.; Asl, R. Salehi

doi:10.1016/j.applthermaleng.2018.09.006

Cited by 30 publications

(9 citation statements)

References 44 publications

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“…Peyghambarzadeh et al [9], Raei et al [10], and Issa [11] have performed heat transfer studies on radiator heat exchangers. The enhancement in Nusselt number is shown as function of the alumina nanoparticle volume concentration (Figure 4).…”

Section: Performance Of Al2o3 Nanofluids In Heat Exchangersmentioning

confidence: 99%

“…Peyghambarzadeh et al [9], Raei et al [10], Issa [11], and Ramalingam et al [12] have experimented with fin-and-tube heat exchangers using 20 and 50 nm alumina nanoparticles with concentrations of up to 1% by volume. Peyghambarzadeh et al [9] conducted forced convective heat transfer experiments on an automobile radiator using alumina nanoparticles with concentrations ranging from 0.1 to 1% by volume.…”

Section: Introductionmentioning

confidence: 99%

“…However, the fluid inlet temperature to the radiator had insignificant effect. Raei et al [10] conducted studies on a fin-and-tube heat exchanger showing improvement of 20% in the overall heat transfer coefficient at 0.2% concentration by weight. This also resulted in 5% increase in pressure drop.…”

Section: Introductionmentioning

confidence: 99%

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Automobile Radiator Integrated with Al2O3 Nanofluid for Compact Size and Sustainability Enhancement

Issa¹

2021

IJHT

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An assessment study was conducted making use of the heat transfer enhancement capability of alumina nanoparticles in reducing the size of an automobile radiator cooling system. Experimental data was compiled from different resources to examine the sensitivity of the thermophysical properties of the bulk fluid to the addition of nanoparticles to the base fluid. Correlations were obtained for a radiator-type heat exchanger. The Nusselt number of the bulk fluid is shown to increase by 50% with the introduction of 1% by volume of alumina nanoparticles to the base fluid. Life cycle assessment was conducted on a conventional-size radiator system for 2017 Subaru Impreza with a 2.0 L engine, and on a resized radiator system having the same effectiveness but using 1% by volume of alumina nanoparticles added to the base fluid. For the same heat exchanger effectiveness, the introduction of 1% by volume of alumina nanoparticles to the base fluid reduces the size of the radiator by 26%, the water pump by 60% and the cooling fan by 28%. An economic input-output life cycle assessment shows a reduction of 28% in the consumed energy and global warming potential, and a reduction of 29% in water usage and total air releases.

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Section: Performance Of Al2o3 Nanofluids In Heat Exchangersmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Automobile Radiator Integrated with Al2O3 Nanofluid for Compact Size and Sustainability Enhancement

Issa¹

2021

IJHT

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“…Nowadays, for an intensification of heat transfer within different engineering systmes the nanosized metal or metal oxide particles are used [11][12][13]. Different experimental studies showed that an inclusion of nanoparticles of low concentration can improve the heat transfer performance inside the system [14,15]. Thus, Asirvatham et al [14] performed experiments for steady convection thermal transmission of de-ionized water combined with copper oxide nanoparticles of low concentration (0.003% by volume) in a copper tube.…”

Section: Introductionmentioning

confidence: 99%

“…They showed 8% enhancement of the convective heat transfer coefficient of the nanofluid even with a low volume concentration of nanosized copper oxide particles. Raei et al [15] experimentally studied the circulation and thermal transmission parameters of three kinds of the nanofluids within a fin-and-tube heat exchanger. It was revealed that an inclusion of alumina nanosized particles into the water enhances the overall heat transfer parameter and friction factor up to 20% and 5%, respectively.…”

Section: Introductionmentioning

confidence: 99%

Impacts of Heat-Conducting Solid Wall and Heat-Generating Element on Free Convection of Al2O3/H2O Nanofluid in a Cavity with Open Border

et al. 2018

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Development of modern electronic devices demands a creation of effective cooling systems in the form of active or passive nature. More optimal technique for an origination of such cooling arrangement is a mathematical simulation taking into account the major physical processes which define the considered phenomena. Thermogravitational convection in a partially open alumina-water nanoliquid region under the impacts of constant heat generation element and heat-conducting solid wall is analyzed numerically. A solid heat-conducting wall is a left vertical wall cooled from outside, while a local solid element is placed on the base and kept at constant volumetric heat generation. The right border is supposed to be partially open in order to cool the local heater. The considered domain of interest is an electronic cabinet, while the heat-generating element is an electronic chip. Partial differential equations of mathematical physics formulated in non-primitive variables are worked out by the second order finite difference method. Influences of the Rayleigh number, heat-transfer capacity ratio, location of the local heater and nanoparticles volume fraction on liquid circulation and thermal transmission are investigated. It was ascertained that an inclusion of nanosized alumina particles to the base liquid can lead to the average heater temperature decreasing, that depends on the heater location and internal volumetric heat generation. Therefore, an inclusion of nanoparticles inside the host liquid can essentially intensify the heat removal from the heater that is the major challenge in different engineering applications. Moreover, an effect of nanosized alumina particles is more essential in the case of low intensive convective flow and when the heater is placed near the cooling wall.

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Experimental Investigation of Evaporator Coil Performance with Ethylene Glycol

Kumar

Mondal

2023

Lecture Notes in Mechanical Engineering

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Experimental investigation on heat transfer and flow resistance of drag-reducing alumina nanofluid in a fin-and-tube heat exchanger

Cited by 30 publications

References 44 publications

Automobile Radiator Integrated with Al2O3 Nanofluid for Compact Size and Sustainability Enhancement

Automobile Radiator Integrated with Al2O3 Nanofluid for Compact Size and Sustainability Enhancement

Impacts of Heat-Conducting Solid Wall and Heat-Generating Element on Free Convection of Al2O3/H2O Nanofluid in a Cavity with Open Border

Experimental Investigation of Evaporator Coil Performance with Ethylene Glycol

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