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Nanofluid

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This article is about fluids containing nanoparticles. For the dynamics of fluids confined in nanoscale structures, see Nanofluidics.

A nanofluid is a fluid containing nanometer-sized particles, called nanoparticles. These fluids are engineered colloidal suspensions of nanoparticles in a base fluid.[1][2] The nanoparticles used in nanofluids are typically made of metals, oxides, carbides, or carbon nanotubes. Common base fluids include water, ethylene glycol,[3] and oil.

Nanofluids have many potentially heat transfer applications,[4] including microelectronics, fuel cells, pharmaceutical processes, and hybrid-powered engines,[5] engine cooling/vehicle thermal management, domestic refrigerator, chiller, heat exchanger, in grinding, machining and in boiler flue gas temperature reduction. They exhibit enhanced thermal conductivity and convective heat transfer coefficient compared to the base fluid.[6] Knowledge of the rheological behaviour of nanofluids is critical in deciding their suitability for convective heat transfer applications.[7][8] Nanofluids also have special acoustical properties and in ultrasonic fields display shear-wave reconversion of an incident compressional wave; the effect becomes more pronounced as concentration increases.[9]

In computational fluid dynamics (CFD), nanofluids can be assumed to be single phase fluids;[10][11] however, almost all academic papers use a two-phase assumption. Classical theory of single phase fluids can be applied, where physical properties of nanofluid is taken as a function of properties of both constituents and their concentrations.[12] An alternative approach simulates nanofluids using a two-component model.[13]

The spreading of a nanofluid droplet is enhanced by the solid-like ordering structure of nanoparticles assembled near the contact line by diffusion, which gives rise to a structural disjoining pressure in the vicinity of the contact line.[14] However, such enhancement is not observed for small droplets with diameter of nanometer scale, because the wetting time scale is much smaller than the diffusion time scale.[15]

Properties

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Thermal conductivity, viscosity, density, specific heat, and surface tension are significant thermophysical properties of nanofluids. Parameters such as nanoparticle type, size, shape, volume concentration, fluid temperature, and nanofluid preparation method affect thermophysical properties.[16]

Synthesis

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Nanofluids are produced by several techniques:

  • Direct Evaporation (1 step)
  • Gas condensation/dispersion (2 step)
  • Chemical vapour condensation (1 step)
  • Chemical precipitation (1 step)
  • Bio-based (2 step)

Base liquids include water, ethylene glycol, and oils have been used. Although stabilization can be a challenge, on-going research indicates that it is possible. Nano-materials used so far in nanofluid synthesis include metallic particles, oxide particles, carbon nanotubes, graphene nano-flakes and ceramic particles.[19][20]

Bio-based

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A biologically-based, environmentally friendly approach for the covalent functionalization of multi-walled carbon nanotubes (MWCNTs) using clove buds was developed.[21][22] No toxic/hazardous acids are typically used in common carbon nanomaterial functionalization procedures, as employed in this synthesis. The MWCNTs are functionalized in one pot using a free radical grafting reaction. The clove-functionalized MWCNTs are then dispersed in distilled water (DI water), producing a highly stable MWCNT aqueous suspension (MWCNTs Nanofluid).

Applications

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Nanofluids are primarily used for their enhanced thermal properties as coolants in heat transfer equipment such as heat exchangers, electronic cooling system(such as flat plate) and radiators.[23] Heat transfer over flat plate has been analyzed by many researchers.[24] However, they are also useful for their controlled optical properties.[25][26][27][28] Graphene based nanofluid has been found to enhance Polymerase chain reaction[29] efficiency. Nanofluids in solar collectors is another application where nanofluids are employed for their tunable optical properties.[30][31][32] Nanofluids have also been explored to enhance thermal desalination technologies, by altering thermal conductivity[33] and absorbing sunlight,[34] but surface fouling of the nanofluids poses a major risk to those approaches.[33] Researchers proposed nanofluids for electronics cooling.[35] Nanofluids also can be used in machining.[36]

Smart cooling

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One project demonstrated a class of magnetically polarizable nanofluids with thermal conductivity enhanced up to 300%. Fatty-acid-capped magnetite nanoparticles of different sizes (3-10 nm) were synthesized. It showed that the thermal and rheological properties of such magnetic nanofluids are tunable by varying magnetic field strength and orientation with respect to the direction of heat flow.[37][38][39] Such response stimuli fluids are reversible and have applications in miniature devices such as micro- and nano-electromechanical systems.[40][41]

A 2013 study considered the effect of an external magnetic field on the convective heat transfer coefficient of water-based magnetite nanofluid experimentally under laminar flow regime. It obtained up to 300% enhancement at Re=745 and magnetic field gradient of 32.5 mT/mm. The effect of the magnetic field on pressure was not as significant.[42]

Sensing

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A nanofluid-based ultrasensitive optical sensor changes its colour on exposure to low concentrations of toxic cations.[43] The sensor is useful in detecting minute traces of cations in industrial and environmental samples. Existing techniques for monitoring cations levels in industrial and environmental samples are expensive, complex and time-consuming. The sensor uses a magnetic nanofluid that consists of nano-droplets with magnetic grains suspended in water. In a fixed magnetic field, a light source illuminates the nanofluid, changing its colour depending on the cation concentration. This color change occurs within a second after exposure to cations, much faster than other existing cation sensing methods.

Such responsive nanofluids can detect and image defects in ferromagnetic components. The so-called photonic eye is based on a magnetically polarizable nano-emulsion that changes colour when it comes into contact with a defective region in a sample. The device could monitor structures such as rail tracks and pipelines.[44][45]

Nanolubricants

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Nanolubricants modify oils used for engine and machine lubrication.[46] Materials including metals, oxides and allotropes of carbon have supplied nanoparticles for such applications. The nanofluid enhances thermal conductivity and anti-wear properties. Although MoS2, graphene, and Cu-based fluids have been studied extensively, fundamental understanding of underlying mechanisms is absent.

MoS2 and graphene work as third body lubricants, essentially acting as ball bearings that reduce the friction between surfaces.[47][48] This mechanism requires sufficient particles to be present at the contact interface. The beneficial effects diminish because sustained contac pushes away the third body lubricants.

Other nanolubricant approaches, such as magnesium silicate hydroxides (MSH) rely on nanoparticle coatings by synthesizing nanomaterials with adhesive and lubricating functionalities. Research into nanolubricant coatings has been conducted in both the academic and industrial spaces.[49][50] Nanoborate additives as well as mechanical model descriptions of diamond-like carbon (DLC) coating formations have been developed.[51] Companies such as TriboTEX provide commercial formulations of synthesized MSH nanomaterial coatings for vehicle engine and industrial applications.[52][47]

Petroleum refining

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Many researches claim that nanoparticles can be used to enhance crude oil recovery.[53]

Photonic crystals

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Magnetic nanoparticle clusters or magnetic nanobeads of size 80–150 nanometers form ordered structures along the direction of an external magnetic field with a regular interparticle spacing on the order of hundreds of nanometers resulting in strong diffraction of visible light.[54][55]

Flow battery

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Nanoelectrofuel-based flow batteries ((NFB) have been claimed to store 15 to 25 times as much energy as traditional flow batteries. The Strategic Technology Office of the U.S. Defense Advanced Research Projects Agency (DARPA) is exploring military’s deployment of NFB in place of conventional lithium-ion batteries.[56]

The nanofluid particles undergo redox reactions at the electrode. Particles are engineered to remain suspended indefinitely, comprising up to 80 percent of the liquid’s weight with the viscosity of motor oil. The particles can be made from inexpensive minerals, such as ferric oxide (anode) and gamma manganese dioxide (cathode). The nanofluids use a nonflammable aqueous suspension. As of 2024 DARPA-funded Influit claimed to be developing a battery with an energy density of 550-850 wh/kg, higher than conventional lithium-ion batteries. A demonstration battery operated successfully between −40 °C and 80 °C.[56]

Discharged nanofluids could be recharged while in a vehicle or after removal at a service station. Costs are claimed to be comparable to lithium ion. An EV-battery sized fuel reservoir (80 gallons) was expected to provide range comparable to a conventional gasoline vehicle. Fluids that escape, e.g., following a crash, turn into a pastelike substance, which can be removed and reused safely. Flow batteries also produce less heat, reducing their thermal signature for military vehicles.[56]

Nanoparticle migration

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A 30-lab study reported that "no anomalous enhancement of thermal conductivity was observed in the limited set of nanofluids tested in this exercise".[57] The COST funded research programme, Nanouptake (COST Action CA15119) was conducted with the intention "develop and foster the use of nanofluids as advanced heat transfer/thermal storage materials to increase the efficiency of heat exchange and storage systems". One 5-lab study reported that "there are no anomalous or unexplainable effects".[58]

Despite these apparently conclusive experimental investigations theoretical papers continue to claim anomalous enhancement,[59][60][61][62][63][64][65] particularly via Brownian and thermophoretic mechanisms.[2] Brownian diffusion is due to the random drifting of suspended nanoparticles in the base fluid which originates from collisions between nanoparticles and liquid molecules. Thermophoresis induces nanoparticle migration from warmer to colder regions, again due to such collisions. A 2017 study considered the mismatch between experimental and theoretical results. It reported that Brownian motion and thermophoresis effects have no significant effects: their role is often amplified in theoretical studies due to the use of incorrect parameter values.[66] Experimental validation of these assertions came in 2018[67] Brownian diffusion as a cause for enhanced heat transfer is dismissed in the discussion of the use of nanofluids in solar collectors.[citation needed]

See also

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References

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  1. ^ Taylor, R.A.; et al. (2013). "Small particles, big impacts: A review of the diverse applications of nanofluids". Journal of Applied Physics. 113 (1): 011301–011301–19. Bibcode:2013JAP...113a1301T. doi:10.1063/1.4754271.
  2. ^ a b Buongiorno, J. (March 2006). "Convective Transport in Nanofluids". Journal of Heat Transfer. 128 (3): 240–250. doi:10.1115/1.2150834. Retrieved 27 March 2010.
  3. ^ "Argonne Transportation Technology R&D Center". Archived from the original on 23 March 2012. Retrieved 27 March 2010.
  4. ^ Minkowycz, W., et al., Nanoparticle Heat Transfer and Fluid Flow, CRC Press, Taylor & Francis, 2013
  5. ^ Das, Sarit K.; Stephen U. S. Choi; Wenhua Yu; T. Pradeep (2007). Nanofluids: Science and Technology. Wiley-Interscience. p. 397. Archived from the original on 3 December 2010. Retrieved 27 March 2010.
  6. ^ Kakaç, Sadik; Anchasa Pramuanjaroenkij (2009). "Review of convective heat transfer enhancement with nanofluids". International Journal of Heat and Mass Transfer. 52 (13–14): 3187–3196. Bibcode:2009IJHMT..52.3187K. doi:10.1016/j.ijheatmasstransfer.2009.02.006.
  7. ^ Witharana, Sanjeeva; Chen, Haisheng; Ding, Yulong (2011-03-16). "Stability of nanofluids in quiescent and shear flow fields". Nanoscale Research Letters. 6 (1): 231. Bibcode:2011NRL.....6..231W. doi:10.1186/1556-276X-6-231. ISSN 1931-7573. PMC 3211290. PMID 21711748.
  8. ^ Chen, H.; Witharana, S.; et al. (2009). "Predicting thermal conductivity of liquid suspensions of nanoparticles (nanofluids) based on Rheology". Particuology. 7 (2): 151–157. doi:10.1016/j.partic.2009.01.005.
  9. ^ Forrester, D. M.; et al. (2016). "Experimental verification of nanofluid shear-wave reconversion in ultrasonic fields". Nanoscale. 8 (10): 5497–5506. Bibcode:2016Nanos...8.5497F. doi:10.1039/C5NR07396K. PMID 26763173.
  10. ^ Sreekumar, S.; Shah, N.; Mondol, J.; Hewitt, N.; Chakrabarti, S. (June 2022). "Numerical Investigation and Feasibility Study on MXene/Water Nanofluid Based Photovoltaic/thermal System". Cleaner Energy Systems. 103: 504–515. Bibcode:2022CESys...200010S. doi:10.1016/j.cles.2022.100010. S2CID 249738724.
  11. ^ Alizadeh, M. R.; Dehghan, A. A. (2014-02-01). "Conjugate Natural Convection of Nanofluids in an Enclosure with a Volumetric Heat Source". Arabian Journal for Science and Engineering. 39 (2): 1195–1207. doi:10.1007/s13369-013-0658-2. ISSN 2191-4281. S2CID 137198606.
  12. ^ Maiga, Sidi El Becaye; Palm, S.J.; Nguyen, C.T.; Roy, G; Galanis, N (3 June 2005). "Heat transfer enhancement by using nanofluids in forced convection flows". International Journal of Heat and Fluid Flow. 26 (4): 530–546. Bibcode:2005IJHFF..26..530M. doi:10.1016/j.ijheatfluidflow.2005.02.004.
  13. ^ Kuznetsov, A.V.; Nield, D.A. (2010). "Natural convective boundary-layer flow of a nanofluid past a vertical plate". International Journal of Thermal Sciences. 49 (2): 243–247. Bibcode:2010IJTS...49..243K. doi:10.1016/j.ijthermalsci.2009.07.015.
  14. ^ Wasan, Darsh T.; Nikolov, Alex D. (May 2003). "Spreading of nanofluids on solids". Nature. 423 (6936): 156–159. Bibcode:2003Natur.423..156W. doi:10.1038/nature01591. PMID 12736681. S2CID 4419113.
  15. ^ Lu, Gui; Hu, Han; Duan, Yuanyuan; Sun, Ying (2013). "Wetting kinetics of water nano-droplet containing non-surfactant nanoparticles: A molecular dynamics study". Appl. Phys. Lett. 103 (25): 253104. Bibcode:2013ApPhL.103y3104L. doi:10.1063/1.4837717. S2CID 22154751.
  16. ^ Mahbubul, I. M. (2019-01-01), Mahbubul, I. M. (ed.), "4 - Thermophysical Properties of Nanofluids", Preparation, Characterization, Properties and Application of Nanofluid, Micro and Nano Technologies, William Andrew Publishing, pp. 113–196, ISBN 978-0-12-813245-6, retrieved 2022-09-18
  17. ^ Mahbubul, I. M.; Saidur, R.; Amalina, M. A. (2012-01-31). "Latest developments on the viscosity of nanofluids". International Journal of Heat and Mass Transfer. 55 (4): 874–885. Bibcode:2012IJHMT..55..874M. doi:10.1016/j.ijheatmasstransfer.2011.10.021. ISSN 0017-9310.
  18. ^ "Thermal Conductivity of Nanofluids". encyclopedia.pub. Retrieved 2022-09-18.
  19. ^ Kumar Das, Sarit (December 2006). "Heat Transfer in Nanofluids—A Review". Heat Transfer Engineering. 27 (10): 3–19. Bibcode:2006HTrEn..27....3D. doi:10.1080/01457630600904593. S2CID 121751385.
  20. ^ Nor Azwadi, Che Sidik (2014). "A review on preparation methods and challenges of nanofluids". International Communications in Heat and Mass Transfer. 54: 115–125. Bibcode:2014ICHMT..54..115S. doi:10.1016/j.icheatmasstransfer.2014.03.002.
  21. ^ Sadri, R (15 October 2017). "A bio-based, facile approach for the preparation of covalently functionalized carbon nanotubes aqueous suspensions and their potential as heat transfer fluids". Journal of Colloid and Interface Science. 504: 115–123. Bibcode:2017JCIS..504..115S. doi:10.1016/j.jcis.2017.03.051. PMID 28531649.
  22. ^ Hosseini, M (February 22, 2017). "Experimental Study on Heat Transfer and Thermo-Physical Properties of Covalently Functionalized Carbon Nanotubes Nanofluids in an Annular Heat Exchanger: A Green and Novel Synthesis". Energy & Fuels. 31 (5): 5635–5644. doi:10.1021/acs.energyfuels.6b02928. S2CID 99426800.
  23. ^ "Advances in Mechanical Engineering". hindawi.com. Retrieved 8 June 2015.
  24. ^ "Dr. AMINREZA NOGHREHABADI". Archived from the original on 2013-11-11.
  25. ^ Phelan, Patrick; Otanicar, Todd; Taylor, Robert; Tyagi, Himanshu (2013-05-17). "Trends and Opportunities in Direct-Absorption Solar Thermal Collectors". Journal of Thermal Science and Engineering Applications. 5 (2): 021003. doi:10.1115/1.4023930. ISSN 1948-5085.
  26. ^ Hewakuruppu, Yasitha L.; Dombrovsky, Leonid A.; Chen, Chuyang; Timchenko, Victoria; Jiang, Xuchuan; Baek, Sung; Taylor, Robert A. (2013-08-20). "Plasmonic "pump–probe" method to study semi-transparent nanofluids". Applied Optics. 52 (24): 6041–50. Bibcode:2013ApOpt..52.6041H. doi:10.1364/ao.52.006041. PMID 24085009.
  27. ^ Lv, Wei; Phelan, Patrick E.; Swaminathan, Rajasekaran; Otanicar, Todd P.; Taylor, Robert A. (2012-11-21). "Multifunctional Core-Shell Nanoparticle Suspensions for Efficient Absorption". Journal of Solar Energy Engineering. 135 (2): 021004. doi:10.1115/1.4007845. ISSN 0199-6231.
  28. ^ Otanicar, Todd P.; Phelan, Patrick E.; Taylor, Robert A.; Tyagi, Himanshu (2011-03-22). "Spatially Varying Extinction Coefficient for Direct Absorption Solar Thermal Collector Optimization". Journal of Solar Energy Engineering. 133 (2): 024501. doi:10.1115/1.4003679. ISSN 0199-6231.
  29. ^ "Enhancing the efficiency of polymerase chain reaction using graphene nanoflakes - Abstract - Nanotechnology - IOPscience". iop.org. Retrieved 8 June 2015.
  30. ^ Sreekumar, S.; Shah, N.; Mondol, J.; Hewitt, N.; Chakrabarti, S. (February 2022). "Broadband absorbing mono, blended and hybrid nanofluids for direct absorption solar collector: A comprehensive review" (PDF). Nano Futures. 103 (2): 504–515. Bibcode:2022NanoF...6b2002S. doi:10.1088/2399-1984/ac57f7. S2CID 247095942.
  31. ^ Taylor, Robert A (2011). "Nanofluid optical property characterization: towards efficient direct absorption solar collectors". Nanoscale Research Letters. 6 (1): 225. Bibcode:2011NRL.....6..225T. doi:10.1186/1556-276X-6-225. PMC 3211283. PMID 21711750.
  32. ^ Taylor, Robert A (October 2012). "Nanofluid-based optical filter optimization for PV/T systems". Light: Science & Applications. 1 (10): e34. Bibcode:2012LSA.....1E..34T. doi:10.1038/lsa.2012.34.
  33. ^ a b Parmar, Harsharaj B.; Fattahi Juybari, Hamid; Yogi, Yashwant S.; Nejati, Sina; Jacob, Ryan M.; Menon, Prashant S.; Warsinger, David M. (2021). "Nanofluids improve energy efficiency of membrane distillation". Nano Energy. 88. Elsevier BV: 106235. Bibcode:2021NEne...8806235P. doi:10.1016/j.nanoen.2021.106235. ISSN 2211-2855.
  34. ^ Zhang, Yong; Liu, Lie; Li, Kuiling; Hou, Deyin; Wang, Jun (2018). "Enhancement of energy utilization using nanofluid in solar powered membrane distillation". Chemosphere. 212. Elsevier BV: 554–562. Bibcode:2018Chmsp.212..554Z. doi:10.1016/j.chemosphere.2018.08.114. ISSN 0045-6535. PMID 30165282. S2CID 52138195.
  35. ^ Khaleduzzaman, S. S.; Rahman, Saidur; Selvaraj, Jeyraj; Mahbubul, I. M.; Sohel, M. R.; Shahrul, I. M. (2014). "Nanofluids for Thermal Performance Improvement in Cooling of Electronic Device". Advanced Materials Research. 832: 218–223. doi:10.4028/www.scientific.net/AMR.832.218. ISSN 1662-8985. S2CID 136011443.
  36. ^ Vasu, V.; Kumar, K. Manoj (2011-12-01). "Analysis of Nanofluids as Cutting Fluid in Grinding EN-31 Steel". Nano-Micro Letters. 3 (4): 209–214. Bibcode:2011NML.....3..209V. doi:10.1007/BF03353674. ISSN 2150-5551. S2CID 135588867.
  37. ^ Heysiattalab, S.; Malvandi, A.; Ganji, D. D. (2016-07-01). "Anisotropic behavior of magnetic nanofluids (MNFs) at filmwise condensation over a vertical plate in presence of a uniform variable-directional magnetic field". Journal of Molecular Liquids. 219: 875–882. doi:10.1016/j.molliq.2016.04.004.
  38. ^ Malvandi, Amir (2016-06-01). "Anisotropic behavior of magnetic nanofluids (MNFs) at film boiling over a vertical cylinder in the presence of a uniform variable-directional magnetic field". Powder Technology. 294: 307–314. doi:10.1016/j.powtec.2016.02.037.
  39. ^ Malvandi, Amir (2016-05-15). "Film boiling of magnetic nanofluids (MNFs) over a vertical plate in presence of a uniform variable-directional magnetic field". Journal of Magnetism and Magnetic Materials. 406: 95–102. Bibcode:2016JMMM..406...95M. doi:10.1016/j.jmmm.2016.01.008.
  40. ^ J. Philip, Shima.P.D. & B. Raj (2006). "Nanofluid with tunable thermal properties". Applied Physics Letters. 92 (4): 043108. Bibcode:2008ApPhL..92d3108P. doi:10.1063/1.2838304.
  41. ^ Shima P.D.and J. Philip (2011). "Tuning of Thermal Conductivity and Rheology of Nanofluids using an External Stimulus". J. Phys. Chem. C. 115 (41): 20097–20104. doi:10.1021/jp204827q.
  42. ^ Azizian, R.; Doroodchi, E.; McKrell, T.; Buongiorno, J.; Hu, L.W.; Moghtaderi, B. (2014). "Effect of magnetic field on laminar convective heat transfer of magnetite nanofluids". Int. J. Heat Mass. 68: 94–109. Bibcode:2014IJHMT..68...94A. doi:10.1016/j.ijheatmasstransfer.2013.09.011.
  43. ^ Mahendran, V. (2013). "Spectral Response of MagneticNanofluid to Toxic Cations". Appl. Phys. Lett. 102 (16): 163109. Bibcode:2013ApPhL.102p3109M. doi:10.1063/1.4802899.
  44. ^ Mahendran, V. (2012). "Nanofluid based opticalsensor for rapid visual inspection of defects in ferromagnetic materials". Appl. Phys. Lett. 100 (7): 073104. Bibcode:2012ApPhL.100g3104M. doi:10.1063/1.3684969.
  45. ^ "Nanofluid sensor images defects". nanotechweb.org. Retrieved 8 June 2015.
  46. ^ Rasheed, A.K.; Khalid, M.; Javeed, A.; Rashmi, W.; Gupta, T.C.S.M.; Chan, A. (November 2016). "Heat transfer and tribological performance of graphene nanolubricant in an internal combustion engine". Tribology International. 103: 504–515. doi:10.1016/j.triboint.2016.08.007.
  47. ^ a b Anis, Mohab; AlTaher, Ghada; Sarhan, Wesam; Elsemary, Mona (2016-12-08). Nanovate: Commercializing Disruptive Nanotechnologies. Springer. ISBN 978-3-319-44863-3.
  48. ^ Fox-Rabinovich, German; Totten, George E. (2006-09-18). Self-Organization During Friction: Advanced Surface-Engineered Materials and Systems Design. CRC Press. ISBN 978-1-4200-1786-1.
  49. ^ Rudenko P (Washington SU, Chang Q, Erdemir A (Argonne NL. Effect of Magnesium Hydrosillicate on Rolling Element Bearings. In: STLE 2014 Annual Meeting; 2014.
  50. ^ Chang Q, Rudenko P (Washington SU, Miller D, et al. Diamond like Nanocomposite Boundary Films from Synthetic Magnesium Silicon Hydroxide (MSH) Additives.; 2014.
  51. ^ Erdemir, Ali; Ramirez, Giovanni; Eryilmaz, Osman L.; Narayanan, Badri; Liao, Yifeng; Kamath, Ganesh; Sankaranarayanan, Subramanian K. R. S. (2016-08-04). "Carbon-based tribofilms from lubricating oils". Nature. 536 (7614): 67–71. Bibcode:2016Natur.536...67E. doi:10.1038/nature18948. ISSN 0028-0836. PMID 27488799.
  52. ^ "TriboTEX REVERSE WEAR: run longer, stronger, and cleaner w/ nanotech". TriboTEX. Retrieved 2024-06-17.
  53. ^ Suleimanov, B.A.; Ismailov, F.S.; Veliyev, E.F. (2011-08-01). "Nanofluid for enhanced oil recovery". Journal of Petroleum Science and Engineering. 78 (2): 431–437. Bibcode:2011JPSE...78..431S. doi:10.1016/j.petrol.2011.06.014. ISSN 0920-4105. S2CID 95822692.
  54. ^ He, Le; Wang, Mingsheng; Ge, Jianping; Yin, Yadong (18 September 2012). "Magnetic Assembly Route to Colloidal Responsive Photonic Nanostructures". Accounts of Chemical Research. 45 (9): 1431–1440. doi:10.1021/ar200276t. PMID 22578015.
  55. ^ http://nanos-sci.com/technology.html Properties and use of magnetic nanoparticle clusters (magnetic nanobeads)
  56. ^ a b c CHARETTE, ROBERT N. (24 December 2023). "Can Flow Batteries Finally Beat Lithium? - IEEE Spectrum". IEEE. Retrieved 2024-06-17.
  57. ^ Buongiorno, Jacopo; Venerus, David C.; Prabhat, Naveen; McKrell, Thomas; Townsend, Jessica; Christianson, Rebecca; Tolmachev, Yuriy V.; Keblinski, Pawel; Hu, Lin-wen; Alvarado, Jorge L.; Bang, In Cheol (2009-11-01). "A benchmark study on the thermal conductivity of nanofluids". Journal of Applied Physics. 106 (9): 094312–094312–14. Bibcode:2009JAP...106i4312B. doi:10.1063/1.3245330. hdl:1721.1/66196. ISSN 0021-8979.
  58. ^ Buschmann, M. H.; Azizian, R.; Kempe, T.; Juliá, J. E.; Martínez-Cuenca, R.; Sundén, B.; Wu, Z.; Seppälä, A.; Ala-Nissila, T. (2018-07-01). "Correct interpretation of nanofluid convective heat transfer". International Journal of Thermal Sciences. 129: 504–531. Bibcode:2018IJTS..129..504B. doi:10.1016/j.ijthermalsci.2017.11.003. hdl:10234/174682. ISSN 1290-0729.
  59. ^ Bahiraei, Mehdi (2015-09-01). "Effect of particle migration on flow and heat transfer characteristics of magnetic nanoparticle suspensions". Journal of Molecular Liquids. 209: 531–538. doi:10.1016/j.molliq.2015.06.030.
  60. ^ Malvandi, A.; Ghasemi, Amirmahdi; Ganji, D. D. (2016-11-01). "Thermal performance analysis of hydromagnetic Al2O3-water nanofluid flows inside a concentric microannulus considering nanoparticle migration and asymmetric heating". International Journal of Thermal Sciences. 109: 10–22. doi:10.1016/j.ijthermalsci.2016.05.023.
  61. ^ Bahiraei, Mehdi (2015-05-01). "Studying nanoparticle distribution in nanofluids considering the effective factors on particle migration and determination of phenomenological constants by Eulerian–Lagrangian simulation". Advanced Powder Technology. Special issue of the 7th World Congress on Particle Technology. 26 (3): 802–810. doi:10.1016/j.apt.2015.02.005.
  62. ^ Pakravan, Hossein Ali; Yaghoubi, Mahmood (2013-06-01). "Analysis of nanoparticles migration on natural convective heat transfer of nanofluids". International Journal of Thermal Sciences. 68: 79–93. Bibcode:2013IJTS...68...79P. doi:10.1016/j.ijthermalsci.2012.12.012.
  63. ^ Malvandi, A.; Moshizi, S. A.; Ganji, D. D. (2016-01-01). "Two-component heterogeneous mixed convection of alumina/water nanofluid in microchannels with heat source/sink". Advanced Powder Technology. 27 (1): 245–254. doi:10.1016/j.apt.2015.12.009.
  64. ^ Malvandi, A.; Ganji, D. D. (2014-10-01). "Brownian motion and thermophoresis effects on slip flow of alumina/water nanofluid inside a circular microchannel in the presence of a magnetic field". International Journal of Thermal Sciences. 84: 196–206. Bibcode:2014IJTS...84..196M. doi:10.1016/j.ijthermalsci.2014.05.013.
  65. ^ Bahiraei, Mehdi; Abdi, Farshad (2016-10-15). "Development of a model for entropy generation of water-TiO2 nanofluid flow considering nanoparticle migration within a minichannel". Chemometrics and Intelligent Laboratory Systems. 157: 16–28. doi:10.1016/j.chemolab.2016.06.012.
  66. ^ Myers, Tim G.; Ribera, Helena; Cregan, Vincent (2017-08-01). "Does mathematics contribute to the nanofluid debate?". International Journal of Heat and Mass Transfer. 111: 279–288. arXiv:1902.09346. Bibcode:2017IJHMT.111..279M. doi:10.1016/j.ijheatmasstransfer.2017.03.118. ISSN 0017-9310. S2CID 119067497.
  67. ^ Alkasmoul, Fahad S.; Al-Asadi, M. T.; Myers, T. G.; Thompson, H. M.; Wilson, M. C. T. (2018-11-01). "A practical evaluation of the performance of Al2O3-water, TiO2-water and CuO-water nanofluids for convective cooling" (PDF). International Journal of Heat and Mass Transfer. 126: 639–651. Bibcode:2018IJHMT.126..639A. doi:10.1016/j.ijheatmasstransfer.2018.05.072. hdl:2072/445790. ISSN 0017-9310. S2CID 126074065.
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European projects:

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