Analysis of Ethylene Glycol (EG)-based ((Cu-Al2O3), (Cu-TiO2), (TiO2-Al2O3)) Hybrid Nanofluids for Optimal Car Radiator Coolant

Main Article Content

J. A. Okello
W. N. Mutuku
A. O. Oyem


Coolants are vital in any automotive since they manage the heat in the internal combustion of the engines by preventing corrosion in the cooling system as well as assist in eradicating the engine’s waste heat. This paper examines three different types of ethylene glycol-based hybrid nanofluids ((Cu-Al2O3), (Cu-TiO2), (TiO2-Al2O3)) to establish their cooling capabilities for industrial cooling applications. The vertical flow of these hybrid nanofluids combination through a semi-infinite convectively heated flat plate mimicking the flow of coolant in car radiator is modeled. The governing non-linear partial differential equations of fluid flow are transformed into a system of coupled non-linear ordinary differential equations using a suitable similarity transformation variables and the numerical solution executed using the shooting technique together with the fourth-order Runge-Kutta-Fehlberg integration scheme. The numerical simulation is executed using MATLAB and results are displayed graphically. The effects of pertinent parameters on velocity, temperature, skin friction, and local Nusselt number are investigated. From the study (Cu-Al2O3  hybrid nanocoolant leads to a rapid decrease in temperature at the boundary layer.

Hybrid nanofluids, industrial hybrid nanocoolants, radiator.

Article Details

How to Cite
Okello, J. A., Mutuku, W. N., & Oyem, A. O. (2020). Analysis of Ethylene Glycol (EG)-based ((Cu-Al2O3), (Cu-TiO2), (TiO2-Al2O3)) Hybrid Nanofluids for Optimal Car Radiator Coolant. Journal of Engineering Research and Reports, 17(2), 34-50.
Original Research Article


Choi SUS. Enhancing thermal conductivity of fluids with nanoparticles. American Society of Mechanical Engineers, Fluids Engineering Division (Publication) FED; 1995.

Abbas F, Ali HM, Shah TR, Babar H, Janjua MM, Sajjad U, Amer M. Nanofluid: Potential evaluation in automotive radiator. Journal of Molecular Liquids. 2020;297(xxxx). Available:

Yan S-R, Toghraie D, Abdulkareem LA, Alizadeh A, Barnoon P, Afrand M. The rheological behavior of MWCNTs–ZnO/Water–Ethylene glycol hybrid non-Newtonian nanofluid by using of an experimental investigation. Journal of Materials Research and Technology, 2020;9(4):8401–8406.

Boroomandpour A, Toghraie D, Hashemian M. A comprehensive experimental investigation of thermal conductivity of a ternary hybrid nanofluid containing MWCNTs- titania-zinc oxide/water-ethylene glycol (80:20) as well as binary and mono nanofluids. Synthetic Metals. 2020;268:116501.

Madhesh D, Parameshwaran R, Kalaiselvam S. Experimental investigation on convective heat transfer and rheological characteristics of Cu–TiO2 hybrid nanofluids. Experimental Thermal and Fluid Science. 2014;52:104–115.

Mosayebidorcheh S, Sheikholeslami M, Hatami M, Ganji DD. Analysis of turbulent MHD Couette nanofluid flow and heat transfer using hybrid DTM–FDM. Particuology. 2016;26:95–101.

Hassan M, Ellahi R, Zeeshan A, Bhatti MM. Analysis of natural convective flow of non-Newtonian fluid under the effects of nanoparticles of different materials: Journal of Process Mechanical Engineering. 2018;233(3):643–652.

Tayebi T, Chamkha AJ. Free convection enhancement in an annulus between horizontal confocal elliptical cylinders using hybrid nanofluids. Numerical Heat Transfer,Part A. 2016;70(10):1141–1156.

Soltani F, Toghraie D, Karimipour A. Experimental measurements of thermal conductivity of engine oil-based hybrid and mono nanofluids with tungsten oxide (WO3) and MWCNTs inclusions. Powder Technology. 2020;371:37–44.

Alrashed AAAA, Akbari OA, Heydari A, Toghraie D, Zarringhalam M, Shabani GAS, Seifi AR, Goodarzi M. (2018). The numerical modeling of water/FMWCNT nanofluid flow and heat transfer in a backward-facing contracting channel. Physica B: Condensed Matter, 2018;537:176–183.

Nagarajan FC, Kannaiyan S, Boobalan C. Intensification of heat transfer rate using alumina-silica nanocoolant. International Journal of Heat and Mass Transfer. 2020;149:119127.

Selvaraj V, Krishnan H. Synthesis of graphene encased alumina and its application as nanofluid for cooling of heat-generating electronic devices. Powder Technology. 2020;363:665–675.

Deriszadeh A, Monte F de. On Heat Transfer Performance of Cooling Systems Using Nanofluid for Electric Motor Applications. Entropy. 2020;22(99):22(1)99.

Pourrajab R, Noghrehabadi A, Hajidavalloo E, Behbahani M. Investigation of thermal conductivity of a new hybrid nanofluids based on mesoporous silica modified with copper nanoparticles: Synthesis, characterization and experimental study. Journal of Molecular Liquids. 2020;300:112337.

Mukherjee S, Chakrabarty S, Mishra PC, Chaudhuri P. Transient heat transfer characteristics and process intensification with Al2O3-water and TiO2-water nanofluids: An experimental investigation. Chemical Engineering and Processing - Process Intensification. 2020;150:107887.

Kumar PCM, Chandrasekar M. Heat transfer and friction factor analysis of MWCNT nanofluids in double helically coiled tube heat exchanger. Journal of Thermal Analysis and Calorimetry. 2020;2020:1–13.

Pourrajab R, Noghrehabadi A, Behbahani M, Hajidavalloo E. An efficient enhancement in thermal conductivity of water-based hybrid nanofluid containing MWCNTs-COOH and Ag nanoparticles: experimental study. Journal of Thermal Analysis and Calorimetry. 2020;2020:1–13.

Leong KY, Saidur R, Kazi SN, Mamun AH. Performance investigation of an automotive car radiator operated with nanofluid-based coolants (nanofluid as a coolant in a radiator). Applied Thermal Engineering. 2010;30(17–18):2685–2692.

Singh D, Toutbort J, Chen G. Heavy vehicle systems optimization merit review and peer evaluation; 2006.

M’hamed B, Che Sidik NA, Akhbar MFA, Mamat R, Najafi G. Experimental study on thermal performance of MWCNT nanocoolant in Perodua Kelisa 1000cc radiator system. International Communications in Heat and Mass Transfer. 206;76:156–161.

Mutuku WN. Ethylene glycol (EG)-based nanofluids as a coolant for automotive radiator. Asia Pacific Journal on Computational Engineering. 201;3(1):1.

Huminic G, Huminic A. Numerical analysis of hybrid nanofluids as coolants for automotive applications. International Journal of Heat and Technology. 2017';35(1):S288–S292.

Barzegarian R, Aloueyan A, Yousefi T. Thermal performance augmentation using water based Al 2 O 3 -gamma nanofluid in a horizontal shell and tube heat exchanger under forced circulation. International Communications in Heat and Mass Transfer. 2017;86:52–59.

Hussein AM. Thermal performance and thermal properties of hybrid nanofluid laminar flow in a double pipe heat exchanger. Experimental Thermal and Fluid Science. 2017;88:37–45.

Raei B, Shahraki F, Jamialahmadi M, Peyghambarzadeh SM. Experimental study on the heat transfer and flow properties of γ-Al2O3/water nanofluid in a double-tube heat exchanger. Journal of Thermal Analysis and Calorimetry. 2017;127(3):2561–2575.

Hung Y-H, Wang,W-P, Hsu Y-C, Teng T-P. Performance evaluation of an air-cooled heat exchange system for hybrid nanofluids. Experimental Thermal and Fluid Science. 2017;C(81):43–55.

Mutuku-Njane WN, Makinde OD. MHD Nanofluid flow over a permeable vertical plate with convective heating. Journal of Computational and Theoretical Nanoscience. 2014;11(3):667–675.