Experimental and Numerical Investigations on Heat Transfer and Friction Loss of Functionalized GNP Nanofluids

International Journal of Mechanical Engineering and Technology, 10(8), 2019, pp. 61-77.

17 Pages Posted: 14 Oct 2019

See all articles by K.H. Solangi

K.H. Solangi

School of Mechanical Engineering, Universiti Teknologi Malaysia, Johor Bahru 81310, Johor Malaysia.

S. Sharif

School of Mechanical Engineering, Universiti Teknologi Malaysia, Johor Bahru 81310, Johor Malaysia.

Ibrahim Ogu Sadiq

School of Mechanical Engineering, Universiti Teknologi Malaysia, Johor Bahru 81310, Johor Malaysia

M.J. Hisam

School of Mechanical Engineering, Universiti Teknologi Malaysia, Johor Bahru 81310, Johor Malaysia

Date Written: August 31, 2019

Abstract

Heat transfer and friction loss characteristics of functionalized graphene nanoplatelet-based water (GNP-water) nanofluids are analyzed numerically and experimentally. A horizontal copper test section of 4 mm in diameter was used to run the experiment in close conduit flow. In the numerical analysis for two-phase flow mixture model, the velocity of nanofluids and profile temperature were assumed and in total 50 simulation cases, 2 different heat fluxes, 4 concentrations at Re range of 3900– 11,700 were investigated. In the results, significant enhancement was obtained in the thermal conductivity which increased up to 32%. After validation of the results, the highest enhancement in heat transfer coefficient and friction factor was obtained up to 119% and 10.2% by loading 0.1wt% of GNP-water nanofluids. It was perceived that heat transfer coefficient increases with increasing concentration of GNP-water nanofluids and flow Reynolds number (Re). The numerical and experimental results showed the good agreement with a maximum error of less than 4%. The experimental and numerical results reveal that the GNP-water can function as working fluids in heat transfer applications and can provide good alternatives to conventional working fluids in the thermal fluid systems.

Keywords: heat transfer, nanofluids, copper, turbulent flow, graphene nanoplatelet, propylene glycol

Suggested Citation

Solangi, K.H. and Sharif, S. and Ogu Sadiq, Ibrahim and Hisam, M.J., Experimental and Numerical Investigations on Heat Transfer and Friction Loss of Functionalized GNP Nanofluids (August 31, 2019). International Journal of Mechanical Engineering and Technology, 10(8), 2019, pp. 61-77., Available at SSRN: https://ssrn.com/abstract=3445924

K.H. Solangi (Contact Author)

School of Mechanical Engineering, Universiti Teknologi Malaysia, Johor Bahru 81310, Johor Malaysia. ( email )

Centre for Real Estate Studies, Institute for Smar
Faculty of Geoinformation and Real Estate, Univers
Johor Bahru, 81310
Malaysia

HOME PAGE: http://iaeme.com/MasterAdmin/UploadFolder/IJMET_10_08_005/IJMET_10_08_005.pdf

S. Sharif

School of Mechanical Engineering, Universiti Teknologi Malaysia, Johor Bahru 81310, Johor Malaysia. ( email )

81310 Sekolah Agama
Johor Bahru, Johor
Malaysia

Ibrahim Ogu Sadiq

School of Mechanical Engineering, Universiti Teknologi Malaysia, Johor Bahru 81310, Johor Malaysia ( email )

81310 Sekolah Agama
Johor Bahru, Johor
Malaysia

M.J. Hisam

School of Mechanical Engineering, Universiti Teknologi Malaysia, Johor Bahru 81310, Johor Malaysia ( email )

81310 Sekolah Agama
Johor Bahru, Johor
Malaysia

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