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Journal of Enhanced Heat Transfer
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ISSN Imprimer: 1065-5131
ISSN En ligne: 1026-5511

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Journal of Enhanced Heat Transfer

DOI: 10.1615/JEnhHeatTransf.2018026042
pages 75-100

EFFECT OF NANOFLUID FLOW AND PROTRUSION RIBS ON PERFORMANCE IN SQUARE CHANNELS: AN EXPERIMENTAL INVESTIGATION

Sunil Kumar
Department of Mathematics, Uttarakhand Technical University, Dehradun 248007; School of Mechanical and Civil Engineering, Shoolini University, Solan 173229
Alok Darshan Kothiyal
Department of Mathematics, BFIT Dehradun, Uttarakhand 248007
Mangal Singh Bisht
Department of Mathematics, Govind Ballabh Pant Engineering College, Uttarakhand 246194
Anil Kumar
School of Mechanical and Civil Engineering, Shoolini University, Solan 173229; Himalayan Center of Excellence in Nanotechnology, Shoolini University, Solan 173229

RÉSUMÉ

Effects of nanofluid flow and protrusion transverse rib roughness particle concentration, particle diameter, stream wise pitch, span wise pitch, relative print diameter ratio, and Reynolds number on the thermal and hydrodynamic performance of square channel were analyzed. The nanofluid was prepared as solid nanoparticles of Al2O3 suspended in distilled water. Thermal hydrodynamic performance was determined for different sets of protrusion transverse rib roughness and flow parameters. The highest value of thermal hydrodynamic is observed at nanoparticle concentration of 4.0%, particle diameter of 30, stream wise pitch, of 1.79, span wise pitch of 1.79, and relative print diameter ratio of 1.0. The maximum value of the hydrodynamic and thermal performance was 2.37 for the range of parameters examined.


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