Experimental Investigation of Heat Transfer Enhancement and Flow of Spiral Coil Heat Exchanger for Ag, Cu and ZrO2 Nanofluids

(*) Corresponding author

Authors' affiliations

DOI's assignment:
the author of the article can submit here a request for assignment of a DOI number to this resource!
Cost of the service: euros 10,00 (for a DOI)


This investigation was carried out to study the effect of silver, copper, oxide zirconium – distilled water nanofluids on enhancement heat transfer in a shell and helically coiled tube heat exchanger by changing flow. This study was done by changing the parallel flow configuration into counter flow configuration under turbulent flow regime. The nanofluids (Ag, Cu and ZrO2 – distilled water) at0.5%,1%,2%,3% and 5% particle volume concentration were prepared by two step method. The nanofluid can be applied in helical coiled tube heat exchanger to enhancement heat transfer. The use of nanofluid (Ag, Cu and ZrO2 – DW) significant gives higher Nusselt number than distilled water base fluid. The presence of Ag, Cu and ZrO2 nanoparticles attributes to the generation of strong nanoconvection current and better mixing. Nanofluids that contain metal nanoparticles Ag, Cu show more enhancements compared to oxide nanofluids ZrO2 – DW The shear stress of nanofluids increases with an increase in concentration of nanoparticles for both parallel flow and counter flow. No much impact of changing flow direction on overall heat transfer coefficient and the nanofluids (Ag, Cu and ZrO2– DW) behaves as the Newtonian fluid for 0.5%, 1%, 2%, 3% and 5%. The pressure drop and friction factor of the nanofluid are approximately the same as those of water. This implies that the nanofluid incurs no penalty of pump power and may be suitable for practical application. This study indicated that the thermal performance from nanofluid (Ag – DW) is higher than (Cu – DW) and (ZrO2 – DW) due to higher thermal conductivity for the silver
Copyright © 2013 Praise Worthy Prize - All rights reserved.


Nanofluid; Pyrex Helically Coiled Tube; Overall Heat Transfer Coefficient Parallel Flow; Counter Flow; Nanoparticles Concentration

Full Text:



L.F. Chen, H.Q. Xie, Y. Li, W. Yu, Thermochim. Acta477, 21, 2008.

T.K. Hong, H.S. Yang, C.J. Choi, J. Appl. Phys. 97, 064311, 2005.

J. Garg, B. Poudel, M. Chiesa, J.B. Gordon, J.J. Ma, J.B. Wang, Z.F. Ren, Y.T. Kang, H. Ohtani, J. Nanda, G.H. McKinley, G. Chen, J. Appl. Phys. 103, 074301 , 2008.

H.Q. Xie, J.C. Wang, T.G. Xi, Y. Liu, F. Ai, Q.R. Wu, J. Appl. Phys. 91(7), 4568, 2002.

P.K. Namburu, D.P. Kulkarni, D. Misra, D.K. Das, Exp. Therm.Fluid Sci. 32, 397, 2007.

C.T. Nguyen, F. Desgranges, N. Galanis, G. Roy, T. Mare´d,S. Boucher, H.A. Mintsa, Int. J. Therm. Sci. 47, 103 (2008).

S.E.B. Maiga, C.T. Nguyen, N. Galanis, G. Roy, SuperlatticesMicrostruct. 35, 543, 2004.

S.Z. Heris, S.G. Etemad, M.N. Esfahany, Int. J. Heat and Mass Transf. 33, 529, 2006.

D.S. Wen, Y.L. Ding, Int. J. Heat and Mass Transf. 47, 5181, 2004.

MohdNadeem Khan, Mohd Islam, M.M.HasanExperimental Investigation of Fluid Flow and Heat Transfer in Circular Microchannels,, Int.J.Heat and Mass Transfer, Vol. 5 N. 6, pp. 1144 – 1150,September, 2011.

R.A. Seban, E. F. McLaughlin, Heat transfer in tube coils with laminar and turbulent flow, International Journal of heat and Mass Transfer, 6, (1963),387 – 395.

G.F.C. Regers, Y.R. mayhew, Heat transfer and pressure loss in helkically coiled tubes with turbulent flow, International Journal of Heat and Mass Transfer, 7, (1964), 1207 – 1216.

Y. Mori, W. Nakayama, Study on forced convective heat transfer in curved pipe. International Journal of heat and Mass Transfer, 8,(1965),67 – 82.

A Rao, et al. “Characterization of nanoparticles using Atomic Force Microscopy” Journal of Physics: Conference Series 61 ,(2007),971 – 976.

S. U. S. Choi, “Enhancing thermal conductivity of fluids with nanoparticles,” in Developments Applications of Non-Newtonian Flows, D. A. Siginer and H. P. Wang, Eds., FEDvol. 231/MD-vol. (1995),. 66, pp. 99–105, ASME, New York, NY, USA.

Q. Li and Y. Xuan, “Convective heat transfer performances of fluids with nano-particles,” in Proceedings of the 12th International Heat Transfer Conference, (2002),pp. 483–488.

Wen, D. & Ding, Y. Experimental investigation into convective heat transfer of nanofluid at the entrance region under laminar flow conditions. Int. J. Heat and Mass Transfer, Vol. 47,(2004), pp. 5181 – 5188.

Yang, Y., Zhang, Z.G., Grulke, E.A., Anderson, W.B. & Wu, G. Heat transfer properties of nanoparticle-in-fluid dispersions (nanofluids) in laminar flow. Int. J. Heat Mass Transfer, Vol. 48, (2005),pp. 1107-1116.

KyoSik Hwang, SeokPil Jang, Stephen U S Choi. “Flow and Convective Heat Transfer Characteristics of Water-based Al2O3Nanofluids in Fully Developed Laminar Flow Regime” 7th JSME-KSME Thermal and Fluids Engineering Conference. C311. Oct 13 – 16, (2008), Saporo, Japan.

Yanuar, et al. “Hydraulics conveyances of mud slurry by a spiral pipe” Journal of Mechanical Science and Technology 23 , (2009),1835 – 1839.

H.C. Binkman, The viscosity of concentrated suspensions and solution. Chem. Phys.(1952), 20, 571.

Chandrasekar M., Suresh S., Chandra Bose A., Experimental investigations and theoretical determination of thermal conductivity and viscosity of Al2O3/ water nanofluids. Exp. Thermal and Fluid Sci.(2010),34, 210.

Kline, S.J., McClintock, F.A., Describing uncertainties in single – sample experiments. Mechanical Engineering 75 (1), (1953), 3 – 8

F.M. White, Heat Transfer, Addison-Wesley Publishing CompanyInc., New York, NY, (1984).

V. Gnielinski, New equations for heat and mass transfer in turbulent pipe andchannel flow, Int. Chem. Eng. 16 , (1976),359 – 368.

WeerapunDuangthongsuk, SomchaiWongwises, An experimental study on the heat transfer performance and pressure drop of TiO2 – waternanofluids flowing under a turbulent flow regime, International Journal of Heat and Mass Transfer 53 ,(2010),.334–344.

C.F. Colebrook, Turbulent flow in pipes, with particular reference to the transition between the smooth and rough pipe laws, J. Inst. Civ. Eng. Lond. (1939),11, 133.


  • There are currently no refbacks.

Please send any question about this web site to info@praiseworthyprize.com
Copyright © 2005-2024 Praise Worthy Prize