The purpose of the present study was to study the process of development, stability and measurement of thermal conductivity of nanofluid combination of antifreeze-CoFe2O4/SiO2. The results of photography capturing technique showed that the use of CMC surfactant with a mass ratio of 0.1 nanoparticles produced the best long-term stability conditions. Thermal conductivity measurement of nanofluid was performed using KD2-Pro thermal analyzer in a temperature range of 25–50°C with 0.1–1.5% of mass fraction. The results show that the nanofluid thermal conductivity enhanced with increasing the mass fraction of the nanoparticles up to 37.7%. In order to calculate the nano-antifreeze thermal conductivity using curve fitting method of laboratory data, an experimental correlation with high precision was presented. Finally, regarding thermal properties of this nano-antifreeze, it can be introduced as an alternative with high heat transfer potential in thermal and refrigeration systems.

Effects of cobalt ferrite coated with silica nanocomposite on the thermal conductivity of an antifreeze: New nanofluid for refrigeration condensers / Safaei, M. R.; Ranjbarzadeh, R.; Hajizadeh, A.; Bahiraei, M.; Afrand, M.; Karimipour, A.. - In: INTERNATIONAL JOURNAL OF REFRIGERATION. - ISSN 0140-7007. - 102:(2019), pp. 86-95. [10.1016/j.ijrefrig.2018.12.007]

Effects of cobalt ferrite coated with silica nanocomposite on the thermal conductivity of an antifreeze: New nanofluid for refrigeration condensers

Ranjbarzadeh R.;
2019

Abstract

The purpose of the present study was to study the process of development, stability and measurement of thermal conductivity of nanofluid combination of antifreeze-CoFe2O4/SiO2. The results of photography capturing technique showed that the use of CMC surfactant with a mass ratio of 0.1 nanoparticles produced the best long-term stability conditions. Thermal conductivity measurement of nanofluid was performed using KD2-Pro thermal analyzer in a temperature range of 25–50°C with 0.1–1.5% of mass fraction. The results show that the nanofluid thermal conductivity enhanced with increasing the mass fraction of the nanoparticles up to 37.7%. In order to calculate the nano-antifreeze thermal conductivity using curve fitting method of laboratory data, an experimental correlation with high precision was presented. Finally, regarding thermal properties of this nano-antifreeze, it can be introduced as an alternative with high heat transfer potential in thermal and refrigeration systems.
2019
CoFe; 2; O; 4; /SiO; 2; nano-composite; experimental study; new correlation; stability; thermal conductivity
01 Pubblicazione su rivista::01a Articolo in rivista
Effects of cobalt ferrite coated with silica nanocomposite on the thermal conductivity of an antifreeze: New nanofluid for refrigeration condensers / Safaei, M. R.; Ranjbarzadeh, R.; Hajizadeh, A.; Bahiraei, M.; Afrand, M.; Karimipour, A.. - In: INTERNATIONAL JOURNAL OF REFRIGERATION. - ISSN 0140-7007. - 102:(2019), pp. 86-95. [10.1016/j.ijrefrig.2018.12.007]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1417351
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