Boron nitride (BN) nanofluids as cooling agent in thermal management system (TMS)

Krishnam, Mridul; Bose, Sujoy; Das, C. K.

doi:10.1016/j.applthermaleng.2016.06.099

Cited by 45 publications

(30 citation statements)

References 20 publications

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“…Higher concentration of particle shows less stability which leads to the agglomeration process due to increase in number of molecules within the fluid. This causes an increase in weight which cannot be maintained in the suspension by Brownian agitation, and settle out of the suspension [152].…”

Section: Filler Fractionmentioning

confidence: 99%

Thermal Transport and Challenges on Nanofluids Performance

Taha-Tijerina¹

2018

Microfluidics and Nanofluidics

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Progress in technology and industrial developments demands the efficient and successful energy utilization and its management in a greater extent. Conventional heattransfer fluids (HTFs) such as water, ethylene glycol, oils and other fluids are typically low-efficiency heat dissipation fluids. Thermal management is a key factor in diverse applications where these fluids can be used, such as in automotive, microelectronics, energy storage, medical, and nuclear cooling among others. Furthermore, the miniaturization and high efficiency of devices in these fields demand successful heat management and energy-efficient materials. The advent of nanofluids could successfully address the low thermal efficiency of HTFs since nanofluids have shown many interesting properties, and the distinctive features offering extraordinary potential for many applications. Nanofluids are engineered by homogeneously suspending nanostructures with average sizes below 100 nm within conventional fluids. This chapter aims to focus on a detail description of the thermal transport behavior, challenges and implications that involve the development and use of HTFs under the influence of atomistic-scale structures and industrial applications. Multifunctional characteristics of these nanofluids, nanostructures variables and features are discussed in this chapter; the mechanisms that promote these effects on the improvement of nanofluids thermal transport performance and the broad range of current and future applications will be included.

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Section: Filler Fractionmentioning

confidence: 99%

Thermal Transport and Challenges on Nanofluids Performance

Taha-Tijerina¹

2018

Microfluidics and Nanofluidics

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“…Recently, many investigations have been carried out on the applications where nanoparticles reinforced conventional fluids and lubricants. Cooling and the reduction of wear and friction are critical technical challenges facing different industries, which are dependent on the characteristics of nanoparticles such as the size, shape and filler fraction, among others [18,[26][27][28][29][30][31][32][33].…”

Section: Introductionmentioning

confidence: 99%

Tribological and Thermal Transport Performance of SiO2-Based Natural Lubricants

2019

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Fluids and lubricants are critical for the mechanical manufacturing processing of metals, due to a high amount of friction generated, also reflected as heat, could wear and damage tooling and machine components. The proper application of lubricants increases machinery lifetime, decreases long-term costs, and energy and time consumption due to the maintenance or components exchange/repairs. Besides being non-renewable, mineral oils bring consequences to the environment due to their low biodegradability and could affect the user with respiratory and skin diseases. Recently, due to an increase in environmental awareness, the search of biocompatible and efficient lubricants has become a technology goal. The vegetable oil-based lubricants are slowly emerging as ecofriendly and high-performance alternatives to petroleum-based lubricants. This study evaluates soybean, sunflower, corn and paraffinic oils reinforced with SiO2 nanoparticles. The thermal and tribological evaluations were performed varying the temperature and nanofiller concentrations. The thermal conductivity improvements were observed for all nanolubricants as the temperature and filler fraction increased. The highest thermal conductivities were observed at 323 K with 0.25 wt % SiO2. The soybean and corn oils unveiled a maximum enhancement of ~11%. The tribological evaluations showed that SiO2 addition, even in small concentration, resulted into a significant improvement on a load-carrying capacity. For instance, at 0.25 wt % enhancements of 45% and 60% were observed for soybean and sunflower oils, respectively. The coefficient of friction performance also showed enhancements between 10% and 26%.

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“…In order to improve the low thermal properties of the conventionally used heat transfer fluids, researchers have introduced the concept of nanofluid . The nanofluids are the new class of engineering fluids which are prepared by dispersing nanometer range materials in traditionally used cooling fluids . The nanofluid shows improvement in heat transfer properties, mass transfer properties, and spreading behavior .…”

Section: Introductionmentioning

confidence: 99%

“…The two‐step method is the most feasible method to produce nanofluids compared to the one‐step physical method. Recently, h‐boron nitride (h‐BN), molybdenum disulfide (MoS 2 ), and alumina (Al 2 O 3 ) nanoparticle addition has attracted much more attention because of their properties like low viscosity, high thermal conductivity, and good stability. The larger BN nanoparticle (140 nm)‐additivated ethylene glycol was observed to possess better thermal conductivity as compared to that of smaller sized (70 nm) particle.…”

Section: Introductionmentioning

confidence: 99%

“…The difference was attributed to the crystal structure of BN phases formed. The addition 70 nm BN nanoparticles into EG from 0.025 to 5.5 vol% shows the thermal conductivity enhancements of 4.5 to 24.5% . The deionised water‐h‐BN nanofluid prepared by addition of different surfactants like sodium dodecyl sulfate (SDS), polyoxyethylene sorbitan monooleate (Tween 80) and cetrimonium bromide (CTAB) shows more than 95% stability up to 7 days .…”

Section: Introductionmentioning

confidence: 99%

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Development of ethylene glycol‐Cr₂AlC nanofluid for thermal management in the automotive sector

Davis

Saleem

Shah

et al. 2019

Int J Applied Ceramic Tech

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The current study is focused on the development of a novel nanofluid for efficient thermal management in the automotive sector. For this, novel Cr 2 AlC-based nanofluids were prepared and its properties were compared with conventional nanofluids prepared under similar condition. h-BN, MoS 2 , Al 2 O 3 , and Cr 2 AlC powders of <60 nm were prepared by high energy ball mill and were added into the EG fluid in 0.25 and 0.50 wt%. The nanofluids were investigated for viscosity, flash point, fire point, thermal conductivity, stability, and freezing temperature. The flash and fire points of EG increase with the addition of nanocrystalline powders. The viscosity of nanofluids decreases and thermal conductivity increases with increase in temperature. Among all addition, nanofluid containing 0.50 wt% of Cr 2 AlC shows maximum enhancement in the thermal conductivity and freezing temperature by 57.91% and 42.15%, respectively. It also shows a good stability up to 20 days. K E Y W O R D S cooling agent, Cr 2 AlC MAX Phase, ethylene glycol, nanofluids, thermal conductivity 1072 | DAVIS et Al.

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Boron nitride (BN) nanofluids as cooling agent in thermal management system (TMS)

Cited by 45 publications

References 20 publications

Thermal Transport and Challenges on Nanofluids Performance

Thermal Transport and Challenges on Nanofluids Performance

Tribological and Thermal Transport Performance of SiO2-Based Natural Lubricants

Development of ethylene glycol‐Cr₂AlC nanofluid for thermal management in the automotive sector

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Boron nitride (BN) nanofluids as cooling agent in thermal management system (TMS)

Cited by 45 publications

References 20 publications

Thermal Transport and Challenges on Nanofluids Performance

Thermal Transport and Challenges on Nanofluids Performance

Tribological and Thermal Transport Performance of SiO2-Based Natural Lubricants

Development of ethylene glycol‐Cr2AlC nanofluid for thermal management in the automotive sector

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Development of ethylene glycol‐Cr₂AlC nanofluid for thermal management in the automotive sector