Study of Heat Pipe Performance with Water/ Water-Based Nanofluid.

Saafan, Mohamed Ghassoub; Elshafei, Elsayed Mohamed; Ali Ebraheem, Osama Mohamed Hamed

doi:10.21608/bfemu.2009.126741

Study of Heat Pipe Performance with Water/ Water-Based Nanofluid.

Document Type : Research Studies

Authors

¹ Mechanical Power Engineering, Faculty of Engineering, Mansoura University, Egypt

² Assistant Professor., Mechanical Power Engineering Department., Faculty of Engineering., El-Mansoura University., Mansoura., Egypt.

³ Mechanical Power Eng. Dept., Faculty of Engineering, Mansoura Univ., Mansoura, Egypt.

10.21608/bfemu.2009.126741

Abstract

Thermal performance of a flat heat pipe cooling system is experimentally investigated. Pure water and Al₂O₃-water based nanofluids are used as working fluids. An experimental setup is designed and constructed to study its performance under different operating conditions. The effect of working fluid, filling ratio, volume fraction of nano-particle in the base fluid, and heat input rate on the average heat transfer coefficient and in turn the average Nusselt number are investigated. Total thermal resistance of the heat pipe for pure water and Al₂O₃-water based nanofluid are also predicted. Correlation is obtained to predict the influence of Prandtl number, filling ratio and dimensionless heat coefficient, K_qfor Nusselt number. Results showed that the average heat transfer coefficient, using Al₂O₃-water based nanofluid enhanced by 10.5% up to 37% compared to that of pure water, depending on filling ratio and volume fraction of nano-particles in the base fluid. The experimental data are compared with the available literature and discrepancies between results are discussed.

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