THERMAL SCIENCE

International Scientific Journal

Authors of this Paper

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Unal Akdag

,

Selma Akcay

,

Dogan Demiral

HEAT TRANSFER IN A TRIANGULAR WAVY CHANNEL WITH CUO-WATER NANOFLUIDS UNDER PULSATING FLOW

ABSTRACT
In this paper, heat transfer and pressure drop characteristics of CuO-water nanofluid flow in a isothermally heated triangular-wavy channel under pulsating inlet conditions are numerically investigated. A numerical simulation is conducted by solving the governing continuity, momentum, and energy equations for laminar flow using the finite volume approach. In the studies, the main parameters including the Reynolds number, pulsating amplitude and frequency, are changed while the nanoparticle volume fraction and the other parameters are kept constant for all cases. Numerical results are compared with the steady flow conditions, which showed that heat transfer performance significantly increases due to improve thermal conductivity and the use of nanoparticles in the pulsating flow conditions. The results indicate that there is a high potential for promoting the thermal performance enhancement by using nanoparticles under pulsating flow in wavy channels. It is found that the heat transfer enhancement increases with increasing pulsating amplitude and Reynolds number, and there is a slight increase in pressure drop. The obtained results are given as a function of dimensionless parameters.
KEYWORDS
nanofluids, pulsating flow, triangular wavy-channel, Heat Transfer Enhancement
PAPER SUBMITTED: 2016-10-18
PAPER REVISED: 2016-10-23
PAPER ACCEPTED: 2017-01-25
PUBLISHED ONLINE: 2017-02-12
DOI REFERENCE: https://doi.org/10.2298/TSCI161018015A
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2019, VOLUME 23, ISSUE Issue 1, PAGES [191 - 205]
REFERENCES
  1. Islamoglu, Y., Parmaksizoglu, C., The Effect of Channel Height on the Enhanced Heat Transfer Characteristics in a Corrugated Heat Exchanger Channel, Appl.Thermal Engineering. 23 (2003), pp. 979-987
  2. Kruse, N., Rohr, P.R., Structure of Turbulent Heat Flux in a Flow over a Heated Wavy Wall, Int. J. Heat Mass Transfer, 49 (2006), pp. 3514-3529
  3. Naphon, P., Heat Transfer Characteristics and Pressure Prop in Channel with V Corrugated Upper and Lower Plates, Energy Conversion and Management, 48 (2007), pp. 1516-1524
  4. Naphon, P., Kornkumjayrit, K., Numerical Analysis on the Fluid Flow and Heat Transfer in the Channel with V- Shaped Wavy Lower Plate, Int. Commun. Heat Mass Transfer, 35 (2008), pp. 839-843
  5. Deylami, H.M., Amanifard, N., Sanaei, M., Kouhikamali, R., Numerical Investigation of Heat Transfer and Pressure Drop in a Corrugated Channel, International Journal of Engineering Transactions A: Basics, 26 (2013),7, pp. 771-780
  6. Nishimura, T., Kojima, N., Mass Transfer Enhancement in a Symmetric Sinusoidal Wavy-Walled Channel for Pulsatile Flow,Int. J. Heat Mass Transfer, 38 (1995),9, pp. 1719-1731
  7. Lee, B.S., Kang, I.S., Lim, H.C., Chaotic Mixing and Mass Transfer Enhancement by Pulsatile Laminar Flow in a Axisymmetric Wavy Channel, Int. J. Heat Mass Transfer, 42 (1999), pp. 2571-2581
  8. Jafari, M., Farhadi, M., Sedighi, K., Pulsating Flow Effects on Convection Heat Transfer in a Corrugated Channel: A LBM approach, Int. Commun. Heat Mass Transfer, 45 (2013), pp. 146-154
  9. Nandi, T.K., Chattopadhyay, H., Numerical Investigations of Developing Flow and Heat Transfer in Raccoon Type Microchannels Under Inlet Pulsation. Int. Commun. Heat Mass Transfer, 56 (2014), pp. 37-41
  10. Nandi, T.K., Chattopadhyay, H., Numerical Investigations of Simultaneously Developing Flow in Wavy Microchannels Under Pulsating Inlet Flow Condition, Int. Commun. Heat Mass Transfer, 47 (2013), pp. 27-31
  11. Jin, D.X., Lee, Y.P., Lee, D.Y., Effects of the Pulsating Flow Agitation on the Heat Transfer in a Triangular Grooved Channel, Int. J. Heat Mass Transfer, 50 (2007), pp. 3062-3071
  12. Heris, S.Z., Etemad, S.G., Esfahany, M.N., Convective Heat Transfer of a Cu/Water Nanofluid Flowing Through a Circular Tube, Experimental Heat Transfer, 22 (2009), pp. 217- 227.
  13. Darzi, A.A.R., Farhadi, M., Sedighi, K., Heat Transfer and Flow Characteristics of Al2O3-Water Nanofluid in a Double Tube Heat Exchanger, Int. Commun. Heat Mass Transfer, 47 (2013), pp. 105-112
  14. Vermahmoudi, Y., Peyghambarzadeh, S.M., Hashemabadi, S.H., Naraki, M., Experimental Investigation on Heat Transfer Performance of Fe2O3/Water Nanofluid in an Air-Finned Heat Exchanger, European Journal of Mechanics B/Fluids, 44 (2014), pp. 32-41
  15. Sundar, L.S., Singh, M.K., Convective Heat Transfer and Friction Factor Correlations of Nanofluid in a Tube and with Inserts: A review, Renewable and Sustainable Energy Reviews, 20 (2013), pp. 23-35
  16. Yang, Y.T., Wang, Y.H., Tseng, P.K., Numerical Optimization of Heat Transfer Enhancement in a Wavy Channel Using Nanofluids, Int. Commun. Heat Mass Transfer, 51 (2014), pp. 9-17
  17. Ahmed, M.A., Yusoff, M.Z., Ng, K.C., Shuaib, N.H., Effect of Corrugation Profile on the Thermal-Hydraulic Performance of Corrugated Channels Using Cuo-Water Nanofluid, Case Studies in Thermal Engineering, 4 (2014), pp.65-75
  18. Heidary, H., Kermani, M.J., Effect of Nano-Particles on Forced Convection in Sinusoidal-Wall Channel, Int. Commun. Heat Mass Transfer, 37 (2010), pp. 1520-1527
  19. Naphon, P., Laminar Convective Heat Transfer and Pressure Drop in the Corrugated Channels, International Communications in Heat and Mass Transfer, 34 (2007), pp. 62-71
  20. Ahmed, M.A., Shuaib, N.H., Yusoff, M.Z., Numerical Investigations on the Heat Transfer Enhancement in a Wavy Channel Using Nanofluid, Int. J. Heat Mass Transfer, 55 (2012), pp. 5891-5898
  21. Ahmed, M.A., Yusoff, M.Z., Shuaib, N.H., Effects of Geometrical Parameters on the Flow and Heat Transfer Characteristics in Trapezoidal-Corrugated Channel Using Nanofluid, Int. Commun. Heat Mass Transfer, 42 (2013), pp. 69-74
  22. Rahgoshay, M., Ranjbar, A.A., Ramiar, A., Laminar Pulsating Flow of Nanofluids in a Circular Tube with Isothermal Wall, Int. Commun. Heat Mass Transfer, 39 (2012), pp. 463-469
  23. Akdag, U., Akcay, S., Demiral, D., Heat Transfer Enhancement with Laminar Pulsating Nanofluid Flow in a Wavy Channel, Int. Commun. Heat Mass Transfer, 59 (2014), pp. 17-23
  24. Akdag, U., Akcay, S., Demiral, D., Numerical Investigation of Heat Transfer Enhancement with Nanofluids under Laminar Pulsating Flow in a Trapezoidal-Corrugated Channel,15th Int. Conference on Advances in Mechanical Engineering, ICAME'15, 13-15 May 2015, Istanbul, Turkey, (inCD) pp.921
  25. Ahmed, M.A. Shuaib, N.H. Yusoff, M.Z. Al-Falahi A.H. Numerical Investigations of Flow and Heat Transfer Enhancement in a Corrugated Channel Using Nanofluid Int. Commun. Heat Mass Transfer, 38 (2011), pp. 1368-1375
  26. Fluent 6.3. FLUENT user's guide. Fluent, Inc., Lebanon, NH. 03766, USA, 2006
  27. Pak, B.C., Cho, Y.I., Hydrodynamic and Heat Transfer Study of Dispersed Fluids with Submicron Metallic Oxide Particles. Experimental Heat Transfer, 11 (1998), 2, pp.151-170
  28. Wang, X., Xu, X., Choi, S., Thermal Conductivity of Nanoparticles-Fluid Mixture, J. Thermophys. Heat Transfer, 13 (1999), pp. 474-480
  29. Patel, H.E., Pradeep, T., Sundarrajan, T., Dasgupta, A., Dasgupta, N., Das, S.K., A Micro-Convection Model for Thermal Conductivity of Nanofluid, Pramana-J. Phys. 65 (2005), pp. 863-869
  30. Minea, A.A., Effect of Microtube Length on Heat Transfer Enhancement of a Water/Al2O3Nanofluid at High Reynolds Numbers, Int. J. Heat Mass Transfer, 62 (2013), pp.22-30
  31. Bouhalleb, M. Abbassi, H. Numerical Investigation of Heat Transfer by CuO-Water Nanofluid in Rectangular Enclosures, Heat Transfer Engineering, 37 (2016), 1, pp. 13-23
  32. Kakac, S., Pramuanjaroenkij, A., Review of Convective Heat Transfer Enhancement with Nanofluids. Int. J. Heat Mass Transfer, 52 (2009), pp. 3187-3196
  33. Wang, X.Q., Mujumdar, A.S., Heat Transfer Characteristics of Nanofluids: A review, Int. J. Therm. Sci., 46 (2007), pp.1-19
  34. Rush TA, Newell TA, Jacobi AM, An experimental study of flow and heat transfer in sinusoidal wavy passages, Int. J. Heat Mass Transfer, 42 (1999), pp:1541-1553
  35. Das D., Arakeri J.H., Transition of unsteady velocity profiles with reverse flow, J. Fluid Mech. 374 (1998), pp. 251-283.
  36. Wang SP, Vanka SP, Convective heat transfer in periodic wavy passages, Int. J. Heat Mass Transfer, 38 (1995), pp. 3219-3230
  37. Saniei N. Dini S. Heat transfer characteristics in a wavy walled channel, Int. J. Heat Mass Transfer, 115 (1993), pp. 788-792.
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Heat transfer in a triangular wavy channel with CuO-water nanofluids under pulsating flow

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