Numerical Analysis on Convective Heat Transfer of water Based Hybrid Nanofluid (Alumina-Copper) In a Horizontal Annulus

Uzair Ali Khan; Shahid Husain; Suhail Ahmad Khan; Mohd Owais Khan; Noman Khan; Raheel Usmani

doi:10.37934/cfdl.14.9.125132

Authors

Uzair Ali Khan Department of Mechanical Engineering National Taiwan University of Science and Technology, Taipei 106, Taiwan
Shahid Husain Department of Mechanical Engineering, Zakir Hussain College of Engineering and Technology, AMU, Aligarh, UP 202001, India
Suhail Ahmad Khan Department of Mechanical Engineering, Zakir Hussain College of Engineering and Technology, AMU, Aligarh, UP 202001, India
Mohd Owais Khan Department of Mechanical Engineering, Zakir Hussain College of Engineering and Technology, AMU, Aligarh, UP 202001, India
Noman Khan Department of Mechanical Engineering, Zakir Hussain College of Engineering and Technology, AMU, Aligarh, UP 202001, India
Raheel Usmani Department of Mechanical Engineering, Zakir Hussain College of Engineering and Technology, AMU, Aligarh, UP 202001, India

DOI:

https://doi.org/10.37934/cfdl.14.9.125132

Keywords:

Natural convection, Heat transfer, Horizontal Annulus, Hybrid Nanofluid (alumina copper), Particle concentration

Abstract

Numerical inspection of natural thermally induced flow in horizontal annulus has been carried out. The annulus taken under consideration is the circular annulus. By applying heat flux to the inner tube, the inner wall of the annulus is kept at high temperature and the outer wall of the annulus is maintained at constant low temperature. The numerical simulations were accomplished by varying concentrations of the hybrid nanofluid of a hybrid alumina-copper various for each Rayleigh number (4 x 104 < Ra < 4 x l05). Heat transmission through natural convection using air as convective fluid, in the body of horizontally placed annulus resided between two same hollow cylinders, is calculated. The influence of the Rayleigh number along with particle concentration on heat transmission characteristics, change in fluid flow and effective thermal conductivity of an annulus has been studied. The results showed a proportional rise in the heat transfer performance and effective thermal conductivity with the increasing particle concentration and Rayleigh numbers.

Author Biography

Uzair Ali Khan, Department of Mechanical Engineering National Taiwan University of Science and Technology, Taipei 106, Taiwan

uzairalikhan@zhcet.ac.in

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