Nanofluids: preparation, stability, properties, and thermal performance in terms of thermo-hydraulic, thermodynamics and thermo-economic analysis

Aydın, Duygu Yılmaz; Gürü, Metin

doi:10.1007/s10973-021-11092-8

Cited by 19 publications

(10 citation statements)

References 274 publications

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“…Three base fluids are essentially used: water, ethylene glycol and thermal oils. Further information about the thermophysical and optical properties of nanofluids for DASC can be found in references [109][110][111][112][113][114][115].…”

Section: Physical Principles and Properties Of Nanofluidsmentioning

confidence: 99%

“…The zeta potential indicates the degree of electrostatic repulsion between nanoparticles, with higher absolute values of the zeta potential indicating higher electrostatic repulsive forces. As an order of magnitude, a nanoparticle dispersion is considered stable when the zeta potential is higher than 30 mV or lower than -30 mV [114,175,176,178,179] (Figure 10). The zeta potential, dependent of the particle material, decreases with the pH of the nanofluids.…”

Section: Stability Of Nanofluidsmentioning

confidence: 99%

“…If high pH values are reached, the zeta potential may drop below -30 mV, promoting the nanofluid stability [180,181,166]. However, very high (pH above 9) or very low (pH below 4) values may trigger an accelerated deterioration of the hydraulic equipment due to corrosion and restrict the possible nanofluid applications [114,179].…”

Section: Stability Of Nanofluidsmentioning

confidence: 99%

“…The stability of the nanofluid decreases with increasing particle size [114,176,182]. On the other hand, increasing the particle volume fraction induces higher Van der Waals attractive forces and therefore higher particle agglomeration [182].…”

Section: Stability Of Nanofluidsmentioning

confidence: 99%

See 3 more Smart Citations

Direct absorption nanofluid-based solar collectors for low and medium temperatures. A review

Mañas

Bataille

Caliot

et al. 2022

Energy

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Section: Physical Principles and Properties Of Nanofluidsmentioning

confidence: 99%

Section: Stability Of Nanofluidsmentioning

confidence: 99%

Section: Stability Of Nanofluidsmentioning

confidence: 99%

Section: Stability Of Nanofluidsmentioning

confidence: 99%

See 2 more Smart Citations

Direct absorption nanofluid-based solar collectors for low and medium temperatures. A review

Mañas

Bataille

Caliot

et al. 2022

Energy

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“…In precursor thermal engineering methods, the outcomes of many experimental and theoretical inquiries manifest the amplification of thermal conductivity with the suspension of solid particles in the regular heat transfer base fluids [1,2]. Nanoparticles (solid particles in sizes of 1-100nm) are made of metals, carbides, oxides, carbon nanotubes, etc.…”

Section: -Introductionmentioning

confidence: 99%

Mass-based hybrid nanofluid algorithm for entropy generation analysis of flow adjacent to a warmed and down-pointing rotating vertical cone

Dinarvand

Berrehal

Khan

et al. 2022

Preprint

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In the present study, the flow, heat transfer, and entropy generation of aqueous copper oxide-silver hybrid nanofluid over a down-pointing rotating vertical cone in the presence of a cross magnetic field has been investigated numerically. The modeling is done by using of the mass-based algorithm and the entropy generation analysis will be implemented in combination with the mentioned model. Five shapes of nanoparticle including the sphere, brick, cylinder, platelet, and disk as well as two types of boundary conditions containing the linear surface temperature (LST) and linear surface heat flux (LSHF) have been considered to present a collection of critical results. The governing PDEs are converted to the dimensionless ODEs using the similarity transformation method and the simplified ODEs are solved numerically by Runge–Kutta–Fehlberg approach coupled with a shooting procedure for some values of the emerged parameters. After achieving the excellent agreement of the computational results with previous reports, the results are presented for the behavior analysis of the hydrodynamics/thermal boundary layers, the skin friction and Nusselt number as well as entropy generation and Bejan number. The highest Nusselt number has been computed for a state of hybrid nanofluid, which shows a remarkable heat transfer augmentation relative to the states of mono-nanofluid and regular fluid; however, the skin friction values always should be considered and controlled. The entropy generation number enhances with the mass of the second nanoparticle (silver), while the reverse trend is demonstrated for the Bejan number. Further, the lowest value of entropy generation number belongs to the cylindrical shape of nanoparticles in the LST case. Consequently, reliable treatment of the mass-based algorithm for the entropy analysis is a substantial achievement of the present research.

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Analyzing Heat Transfer: Experimental and Theoretical Studies on Metal Oxide-Based Binary Nanofluid in Mini Hexagonal Tube Heat Sink

Sriharan,

Harikrishnan,

Oztop

2024

Int J Thermophys

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Nanofluids: preparation, stability, properties, and thermal performance in terms of thermo-hydraulic, thermodynamics and thermo-economic analysis

Cited by 19 publications

References 274 publications

Direct absorption nanofluid-based solar collectors for low and medium temperatures. A review

Direct absorption nanofluid-based solar collectors for low and medium temperatures. A review

Mass-based hybrid nanofluid algorithm for entropy generation analysis of flow adjacent to a warmed and down-pointing rotating vertical cone

Analyzing Heat Transfer: Experimental and Theoretical Studies on Metal Oxide-Based Binary Nanofluid in Mini Hexagonal Tube Heat Sink

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