Convective Heat Transfer and Pressure Drop Characteristics of Al2O3-CNT/Water Hybrid Nanofluid in Straight Circular Tube Under Turbulent Flow

2017 ◽  
Vol 6 (4) ◽  
pp. 743-750
Author(s):  
M. Shahul Hameed ◽  
S. Suresh
Keyword(s):  
Heat Transfer ◽  
Pressure Drop ◽  
Turbulent Flow ◽  
Convective Heat Transfer ◽  
Convective Heat ◽  
Circular Tube ◽  
Hybrid Nanofluid

Convective Heat Transfer Characteristics of Silver-Water Nanofluid Under Laminar and Turbulent Flow Conditions

2012 ◽  
Vol 4 (3) ◽  
Author(s):  
Lazarus Godson ◽  
B. Raja ◽  
D. Mohan Lal ◽  
S. Wongwises
Keyword(s):  
Heat Transfer ◽  
Heat Transfer Coefficient ◽  
Pressure Drop ◽  
Turbulent Flow ◽  
Transfer Coefficient ◽  
Convective Heat Transfer ◽  
Convective Heat ◽  
Pure Water ◽  
Convective Heat Transfer Coefficient ◽  
Experimental Results

The convective heat transfer coefficient and pressure drop of silver-water nanofluids is measured in a counter flow heat exchanger from laminar to turbulent flow regime. The experimental results show that the convective heat transfer coefficient of the nanofluids increases by up to 69% at a concentration of 0.9 vol. % compared with that of pure water. Furthermore, the experimental results show that the convective heat transfer coefficient enhancement exceeds the thermal conductivity enhancement. It is observed that the measured heat transfer coefficient is higher than that of the predicted ones using Gnielinski equation by at least 40%. The use of the silver nanofluid has a little penalty in pressure drop up to 55% increase 0.9% volume concentration of silver nanoparticles.

Turbulent Convective Heat Transfer and Pressure Drop of Graphene–Water Nanofluid Flowing Inside a Horizontal Circular Tube

2014 ◽  
Vol 35 (9) ◽  
pp. 1230-1240 ◽  
Author(s):  
Hossein Akhavan-Zanjani ◽  
Majid Saffar-Avval ◽  
Mohsen Mansourkiaei ◽  
Mohammad Ahadi ◽  
Farhad Sharif
Keyword(s):  
Heat Transfer ◽  
Pressure Drop ◽  
Convective Heat Transfer ◽  
Convective Heat ◽  
Circular Tube

Turbulent Convective Heat Transfer of Very Dilute Nanofluids Inside a Circular Tube

2009 ◽  
Author(s):  
Seyede Maryam Fotukian ◽  
Mohsen Nasr Esfahany
Keyword(s):  
Heat Transfer ◽  
Heat Transfer Coefficient ◽  
Pressure Drop ◽  
Transfer Coefficient ◽  
Convective Heat Transfer ◽  
Convective Heat ◽  
Base Fluid ◽  
Circular Tube ◽  
Convective Heat Transfer Coefficient ◽  
Turbulent Regime

Turbulent convective heat transfer and pressure drop of •-Al2O3/water and CuO/Water nanofluid inside a circular tube were experimentally investigated and compared. The nanofluids were very dilute. Results indicated that addition of small amounts of nanoparticles to the base fluid augmented heat transfer. Measurements showed that pressure drop for the dilute nanofluid was much greater than that of the base fluid. Experimental results were compared with existing correlations for nanofluid convective heat transfer coefficient in turbulent regime.

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