Investigation of the Flow Characteristics of Titanium - Oxide - Water Nanofluid in Microchannel with Circular Cross Section
American Journal of Nano Research and Applications
Volume 5, Issue 6, December 2017, Pages: 102-109
Received: Oct. 18, 2017; Accepted: Oct. 31, 2017; Published: Dec. 22, 2017
Views 1728      Downloads 84
Authors
Saleh Etaig, Mechanical Engineering Department, University of Benghazi, Benghazi, Libya
Reaz Hasan, Mechanical Engineering Department, Northumbria University, Newcastle, UK
Noel Perera, Mechanical Engineering Department, Northumbria University, Newcastle, UK
Article Tools
Follow on us
Abstract
The presented paper reports the analysis of the flows characteristic of TiO2-water nanofluid flowing inside a horizontal microchannel with circular cross section area. The flow is investigated by CFD techniques using a finite volume method. A recently introduced viscosity correlation was used to model the effective viscosity of the nanofluid. A range of Re number is tested in the present study. Various temperature ranges were used as constant temperature boundary conditions. The increase of the nanoparticle volume fraction was found to increase the heat transfer rate; water showed less enhancement in heat transfer compared to the nanofluid. The increase in Re number promoted Nu number. The effect of the temperature on the effective viscosity in the channel was also reported. The change of the velocity in the entrance region was studied and discussed. The velocity gradient in the microchannel is calculated, and the results are shown and discussed.
Keywords
Nanofluid, Convection, Viscosity and Microchannel
To cite this article
Saleh Etaig, Reaz Hasan, Noel Perera, Investigation of the Flow Characteristics of Titanium - Oxide - Water Nanofluid in Microchannel with Circular Cross Section, American Journal of Nano Research and Applications. Vol. 5, No. 6, 2017, pp. 102-109. doi: 10.11648/j.nano.20170506.14
Copyright
Copyright © 2017 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
References
[1]
S. U. S. Choi and J. A. Eastman, Enhancing thermal conductivity of fluids with nanoparticles, 1995.
[2]
J. Koo and C. Kleinstreuer, "Laminar nanofluid flow in microheat-sinks," International Journal of Heat and Mass Transfer, vol. 48, pp. 2652-2661, 6/ 2005.
[3]
J. Chevalier, O. Tillement, and F. Ayela, "Rheological properties of nanofluids flowing through microchannels," Applied Physics Letters, vol. 91, p. 233103, 2007.
[4]
C. T. Nguyen and M. Le Menn, "Two-phase modeling of nanofluid heat transfer in a microchannel heat sink," vol. 1, pp. 451-460, 2009.
[5]
J. Li and C. Kleinstreuer, "Entropy Generation Analysis for Nanofluid Flow in Microchannels," Journal of Heat Transfer, vol. 132, p. 122401, 2010.
[6]
R. Wälchli, T. Brunschwiler, B. Michel, and D. Poulikakos, "Combined local microchannel-scale CFD modeling and global chip scale network modeling for electronics cooling design," International Journal of Heat and Mass Transfer, vol. 53, pp. 1004-1014, 2010.
[7]
M. Kalteh, A. Abbassi, M. Saffar-Avval, A. Frijns, A. Darhuber, and J. Harting, "Experimental and numerical investigation of nanofluid forced convection inside a wide microchannel heat sink," Applied Thermal Engineering, vol. 36, pp. 260-268, 4/ 2012.
[8]
H. A. Mohammed, G. Bhaskaran, N. H. Shuaib, and R. Saidur, "Heat transfer and fluid flow characteristics in microchannels heat exchanger using nanofluids: A review," Renewable and Sustainable Energy Reviews, vol. 15, pp. 1502-1512, 2011.
[9]
S. V. B. Vivekanand and V. R. K. Raju, "Simulation of Evaporation Heat Transfer in a Rectangular Microchannel," Procedia Engineering, vol. 127, pp. 309-316, 2015.
[10]
R. Chein and G. Huang, "Analysis of microchannel heat sink performance using nanofluids," Applied Thermal Engineering, vol. 25, pp. 3104-3114, 12/ 2005.
[11]
S. P. Jang and S. U. S. Choi, "Cooling performance of a microchannel heat sink with nanofluids," Applied Thermal Engineering, vol. 26, pp. 2457-2463, 12/ 2006.
[12]
R. Chein and J. Chuang, "Experimental microchannel heat sink performance studies using nanofluids," International Journal of Thermal Sciences, vol. 46, pp. 57-66, 2007/01/01 2007.
[13]
E. Manay and B. Sahin, "The effect of microchannel height on performance of nanofluids," International Journal of Heat and Mass Transfer, vol. 95, pp. 307-320, 4/ 2016.
[14]
J. Lee and I. Mudawar, "Assessment of the effectiveness of nanofluids for single-phase and two-phase heat transfer in micro-channels," International Journal of Heat and Mass Transfer, vol. 50, pp. 452-463, 2// 2007.
[15]
M. D. Byrne, R. A. Hart, and A. K. da Silva, "Experimental thermal–hydraulic evaluation of CuO nanofluids in microchannels at various concentrations with and without suspension enhancers," International Journal of Heat and Mass Transfer, vol. 55, pp. 2684-2691, 4// 2012.
[16]
T.-C. Hung, W.-M. Yan, X.-D. Wang, and C.-Y. Chang, "Heat transfer enhancement in microchannel heat sinks using nanofluids," International Journal of Heat and Mass Transfer, vol. 55, pp. 2559-2570, 4/ 2012.
[17]
J.-Y. Jung, H.-S. Oh, and H.-Y. Kwak, "Forced convective heat transfer of nanofluids in microchannels," International Journal of Heat and Mass Transfer, vol. 52, pp. 466-472, 1/15/ 2009.
[18]
K. Anoop, R. Sadr, J. Yu, S. Kang, S. Jeon, and D. Banerjee, "Experimental study of forced convective heat transfer of nanofluids in a microchannel," International Communications in Heat and Mass Transfer, vol. 39, pp. 1325-1330, 11/ 2012.
[19]
E. M. Tokit, H. A. Mohammed, and M. Z. Yusoff, "Thermal performance of optimized interrupted microchannel heat sink (IMCHS) using nanofluids," International Communications in Heat and Mass Transfer, vol. 39, pp. 1595-1604, 12/ 2012.
[20]
T.-C. Hung and W.-M. Yan, "Enhancement of thermal performance in double-layered microchannel heat sink with nanofluids," International Journal of Heat and Mass Transfer, vol. 55, pp. 3225-3238, 5/ 2012.
[21]
A. Malvandi, S. A. Moshizi, and D. D. Ganji, "Two-component heterogeneous mixed convection of alumina/water nanofluid in microchannels with heat source/sink," Advanced Powder Technology, vol. 27, pp. 245-254, 1/ 2016.
[22]
A. Malvandi, S. A. Moshizi, and D. D. Ganji, "Effects of temperature-dependent thermophysical properties on nanoparticle migration at mixed convection of nanofluids in vertical microchannels," Powder Technology, vol. 303, pp. 7-19, 12/ 2016.
[23]
J. Zhang, Y. Diao, Y. Zhao, and Y. Zhang, "Experimental study of TiO2–water nanofluid flow and heat transfer characteristics in a multiport minichannel flat tube," International Journal of Heat and Mass Transfer, vol. 79, pp. 628-638, 12/ 2014.
[24]
N. R. Kuppusamy, H. A. Mohammed, and C. W. Lim, "Numerical investigation of trapezoidal grooved microchannel heat sink using nanofluids," Thermochimica Acta, vol. 573, pp. 39-56, 12/10/ 2013.
[25]
N. Alagumurthi and T. Senthilvelan, "Investigation of Heat Transfer in Serpentine Shaped Microchannel Using Al2O3/Water Nanofluid," Heat Transfer—Asian Research, 45/2014.
[26]
S. Etaig, R. Hasan, and N. Perera, "Investigation of a New Effective Viscosity Model for Nanofluids," Procedia Engineering, vol. 157, pp. 404-413, // 2016.
[27]
ANSYS Available: http://www.ansys.com/Products/Fluids/ANSYS-Fluent
[28]
P.-S. Lee, S. V. Garimella, and D. Liu, "Investigation of heat transfer in rectangular microchannels," International Journal of Heat and Mass Transfer, vol. 48, pp. 1688-1704, 2005.
ADDRESS
Science Publishing Group
1 Rockefeller Plaza,
10th and 11th Floors,
New York, NY 10020
U.S.A.
Tel: (001)347-983-5186