A Review on the Thermophysical Properties of Water-Based Nanofluids and their Hybrids
A nanofluid is a solid–liquid mixture which consists of nanoparticles and a base liquid. Nanoparticles are basically metal (Cu, Ni, Al, etc.), oxides (Al2O3, TiO2, CuO, SiO2, Fe2O3, Fe3O4, BaTiO3, etc.) and some other compounds (SiC, CaCO3, graphene, etc.) and base fluids usually include water, ethy...
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| Format: | Article |
| Language: | English |
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Galati University Press
2016-03-01
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| Series: | The Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science |
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| Online Access: | https://www.gup.ugal.ro/ugaljournals/index.php/mms/article/view/1279 |
| _version_ | 1798023456812433408 |
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| author | Alina Adriana MINEA |
| author_facet | Alina Adriana MINEA |
| author_sort | Alina Adriana MINEA |
| collection | DOAJ |
| description | A nanofluid is a solid–liquid mixture which consists of nanoparticles and a base liquid. Nanoparticles are basically metal (Cu, Ni, Al, etc.), oxides (Al2O3, TiO2, CuO, SiO2, Fe2O3, Fe3O4, BaTiO3, etc.) and some other compounds (SiC, CaCO3, graphene, etc.) and base fluids usually include water, ethylene glycol, propylene glycol, engine oil, etc. Conventional fluids have poor heat transfer properties but their vast applications in power generation, chemical processes, heating and cooling processes, electronics and other micro-sized applications make the re-processing of those thermo fluids to have better heat transfer properties quite essential. Recently, it has been shown that the addition of solid nanoparticles to various fluids can increase the thermal conductivity and can influence the viscosity of the suspensions by tens of percent. The thermophysical properties of nanofluids were shown dependent on the particle material, shape, size, concentration, the type of the base fluid, and other additives. Therefore, a comprehensive analysis has been performed to evaluate the thermophysical properties of nanofluids due to variations of nanoparticle volume concentration. Actually, it is shown that no model is able to predict the thermophysical properties of nanofluids precisely in a broad range of nanoparticle volume fraction. Also, a review on hybrid nanofluids is inserted, even if the research is at the very beginning. As a conclusion, the results indicated that further work is needed due to a large uncertainty in termophysical properties method of estimation. |
| first_indexed | 2024-04-11T17:46:33Z |
| format | Article |
| id | doaj.art-7be5b3c23efa41e09db67e15d2705163 |
| institution | Directory Open Access Journal |
| issn | 2668-4748 2668-4756 |
| language | English |
| last_indexed | 2024-04-11T17:46:33Z |
| publishDate | 2016-03-01 |
| publisher | Galati University Press |
| record_format | Article |
| series | The Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science |
| spelling | doaj.art-7be5b3c23efa41e09db67e15d27051632022-12-22T04:11:21ZengGalati University PressThe Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science2668-47482668-47562016-03-013911279A Review on the Thermophysical Properties of Water-Based Nanofluids and their HybridsAlina Adriana MINEA0“Gheorghe Asachi” Technical University of IasiA nanofluid is a solid–liquid mixture which consists of nanoparticles and a base liquid. Nanoparticles are basically metal (Cu, Ni, Al, etc.), oxides (Al2O3, TiO2, CuO, SiO2, Fe2O3, Fe3O4, BaTiO3, etc.) and some other compounds (SiC, CaCO3, graphene, etc.) and base fluids usually include water, ethylene glycol, propylene glycol, engine oil, etc. Conventional fluids have poor heat transfer properties but their vast applications in power generation, chemical processes, heating and cooling processes, electronics and other micro-sized applications make the re-processing of those thermo fluids to have better heat transfer properties quite essential. Recently, it has been shown that the addition of solid nanoparticles to various fluids can increase the thermal conductivity and can influence the viscosity of the suspensions by tens of percent. The thermophysical properties of nanofluids were shown dependent on the particle material, shape, size, concentration, the type of the base fluid, and other additives. Therefore, a comprehensive analysis has been performed to evaluate the thermophysical properties of nanofluids due to variations of nanoparticle volume concentration. Actually, it is shown that no model is able to predict the thermophysical properties of nanofluids precisely in a broad range of nanoparticle volume fraction. Also, a review on hybrid nanofluids is inserted, even if the research is at the very beginning. As a conclusion, the results indicated that further work is needed due to a large uncertainty in termophysical properties method of estimation.https://www.gup.ugal.ro/ugaljournals/index.php/mms/article/view/1279hybrid nanofluidthermal conductivityNusselt numberoxide nanoparticlesviscosity |
| spellingShingle | Alina Adriana MINEA A Review on the Thermophysical Properties of Water-Based Nanofluids and their Hybrids The Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science hybrid nanofluid thermal conductivity Nusselt number oxide nanoparticles viscosity |
| title | A Review on the Thermophysical Properties of Water-Based Nanofluids and their Hybrids |
| title_full | A Review on the Thermophysical Properties of Water-Based Nanofluids and their Hybrids |
| title_fullStr | A Review on the Thermophysical Properties of Water-Based Nanofluids and their Hybrids |
| title_full_unstemmed | A Review on the Thermophysical Properties of Water-Based Nanofluids and their Hybrids |
| title_short | A Review on the Thermophysical Properties of Water-Based Nanofluids and their Hybrids |
| title_sort | review on the thermophysical properties of water based nanofluids and their hybrids |
| topic | hybrid nanofluid thermal conductivity Nusselt number oxide nanoparticles viscosity |
| url | https://www.gup.ugal.ro/ugaljournals/index.php/mms/article/view/1279 |
| work_keys_str_mv | AT alinaadrianaminea areviewonthethermophysicalpropertiesofwaterbasednanofluidsandtheirhybrids AT alinaadrianaminea reviewonthethermophysicalpropertiesofwaterbasednanofluidsandtheirhybrids |