An applicable study on the thermal conductivity of SWCNT-MgO hybrid nanofluid and price-performance analysis for energy management

Esfe, Mohammad Hemmat; Alirezaie, Ali; Rejvani, Mousa

doi:10.1016/j.applthermaleng.2016.09.091

Cited by 233 publications

(37 citation statements)

References 41 publications

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“…In [29] it has been shown that Ag-CuO/water hybrid nanofluid has a much higher heat transfer rate in comparison with nanofluids based on a single additive. The same conclusions were also published in [30], where (SWCNTs)/MgO-ethylene glycol hybrid and unitary nanofluids of SWCNTs and MgO were compared.…”

Section: Mono Vs Hybrid Nanofluids: Future Challengessupporting

confidence: 70%

Efficient Stabilization of Mono and Hybrid Nanofluids

Wciślik

2020

Energies

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Currently; the transfer of new technologies makes it necessary to also control heat transfer in different industrial processes—both in practical and research—applications. Not so long ago water and ethylene glycol were the most frequently used media in heat transfer. However, due to their relatively low thermal conductivity, they cannot provide the fast and effective heat transfer necessary in modern equipment. To improve the heat transfer rate different additives to the base liquid are sought, e.g., nanoadditives that create mono and hybrid nanofluids with very high thermal conductivity. The number of scientific studies and publications concerning hybrid nanofluids is growing, although they still represent a small percentage of all papers on nanofluids (in 2013 it was only 0.6%, and in 2017—ca. 3%). The most important point of this paper is to discuss different ways of stabilizing nanofluids, which seems to be one of the most challenging tasks in nanofluid treatment. Other future challenges concerning mono and hybrid nanofluids are also thoroughly discussed. Moreover, a quality assessment of nanofluid preparation is also presented. Thermal conductivity models are specified as well and new representative mono and hybrid nanofluids are proposed.

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Section: Mono Vs Hybrid Nanofluids: Future Challengessupporting

confidence: 70%

Efficient Stabilization of Mono and Hybrid Nanofluids

Wciślik

2020

Energies

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“…This device, which works based on the transient, hot-wire method, has been widely used by researchers in the literature [29,32,33]. In order to stabilize the temperature during the measurements, a water bath temperature was utilized.…”

Section: Methodsmentioning

confidence: 99%

An experimental and theoretical investigation on the effects of adding hybrid nanoparticles on heat transfer efficiency and pumping power of an oil-based nanofluid as a coolant fluid

Asadi¹,

Asadi²,

Aberoumand³

2018

International Journal of Refrigeration

108

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“…where, ρ bf is the density of the working fluid, and ϕ is the volume fraction of the working fluid. The density and specific heat of the MWCNT/Fe 3 O 4 binary nanofluid can be calculated using Equations (4) and (5), which are defined by Hemmat et al [34]: Table 4 shows the density and specific heat of the water and the MWCNT/Fe 3 O 4 binary nanofluid. The efficiency of the solar collector can also be calculated from Equation (6):…”

Section: Experimental Procedures and Efficiency Calculationmentioning

confidence: 99%

Performance Evaluation of Flat Plate and Vacuum Tube Solar Collectors by Applying a MWCNT/Fe3O4 Binary Nanofluid

2020

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This study experimentally investigated the performance characteristics of water and MWCNT/Fe3O4 binary nanofluid as a working fluid in a flat plate and vacuum tube solar collectors. As a result, the highest efficiency was 80.3% when 0.005 vol.% MWCNT/0.01 vol.% Fe3O4 binary nanofluid was applied to the flat plate solar collector, which was a 17.6% increase in efficiency, compared to that when water was used. In the case of the vacuum tube solar collector, the highest efficiency was 79.8%, which was 24.9% higher than when water was applied. Besides, when the mass flux of MWCNT/Fe3O4 binary nanofluid was changed from 420 to 598 kg/s·m2, the maximum efficiencies of the flat plate and vacuum tube solar collectors were increased by 7.8% and 8.3%, respectively. When the MWCNT/Fe3O4 binary nanofluid was applied to the vacuum tube solar collector, the efficiency improvement was much more significant, and the high performance could be maintained for wide operating conditions, compared with the flat plate solar collector.

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An applicable study on the thermal conductivity of SWCNT-MgO hybrid nanofluid and price-performance analysis for energy management

Cited by 233 publications

References 41 publications

Efficient Stabilization of Mono and Hybrid Nanofluids

Efficient Stabilization of Mono and Hybrid Nanofluids

An experimental and theoretical investigation on the effects of adding hybrid nanoparticles on heat transfer efficiency and pumping power of an oil-based nanofluid as a coolant fluid

Performance Evaluation of Flat Plate and Vacuum Tube Solar Collectors by Applying a MWCNT/Fe3O4 Binary Nanofluid

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