Numerical investigations of flow and heat transfer enhancement in a semicircle zigzag corrugated channel using nanofluids

Numerical investigations of flow and heat transfer enhancement in a semicircle zigzag corrugated channel using nanofluids

Raheem K. Ajeel Wan S. W. Salim  Khalid Hasnan 

Faculty of Mechanical and Manufacturing Engineering, Universiti Tun Hussein Onn Malaysia, 86400 Parit Raja, Batu Pahat, Johor, Malaysia

Department of Mechanical Engineering, College of Engineering, University of Babylon, Babylon, Iraq

Corresponding Author Email: 
dashsin4@gmail.com
Page: 
1292-1303
|
DOI: 
https://doi.org/10.18280/ijht.360418
Received: 
5 June 2018
| |
Accepted: 
7 September 2018
| | Citation

OPEN ACCESS

Abstract: 

Thermal and hydraulic characteristics of turbulent nanofluid flow in a semicircle zigzag corrugated channel are numerically investigated by implementing the finite volume method (FVM) to describe the governing equations. Adiabatic condition for the straight walls, constant heat flux for the corrugated walls, and zigzag configuration of semicircle corrugated channel was examined. The performance of a semicircle zigzag corrugated channel with four types of nanofluids (ZnO, Al2O3, CuO, and SiO2), with four various nanoparticle volume fractions of 2%, 4%, 6% and 8% using water as base fluid is thoroughly analyzed and discussed. The nanoparticles diameter, another parameter taken into consideration, varied from 20 to 80 nm. Results show that the zigzag profile of semicircle corrugated channel has a great impact on the thermal performance compared with flat profile. The Nusselt number dropped as the nanoparticle diameter grew; however, it grew as the volume fraction of nanoparticles and Reynolds number increased. In addition, semicircle corrugated channel shows improvement in heat transfer of 1.5-2.7 times better than flat channel, with increase in the average Nusselt number of 170%. The present investigation uncovers that these semicircle zigzag corrugated channels have favorable circumstances by utilizing nanofluids, which leads to promote the thermal performance of thermal devices and make it more compact.

Keywords: 

heat transfer enhancement, turbulent flow, semicircle-corrugated channel, nanofluids, zigzag profile

1. Introduction
2. Geometrical Model
3. Numerical Implementation and Grid Independece Test
4. Thermophysical Properties of Nanofluids
5. Code Validation
6. Results and Discussions
7. Conclusion
Acknowledgment
Nomenclature
  References

[1] Mohammed HA, Al-Shamani AN, Sheriff JM. (2012). Thermal and hydraulic characteristics of turbulent nanofluids flow in a rib–groove channel. International Communications in Heat and Mass Transfer 39(10): 1584-94. https://doi.org/10.1016/j.icheatmasstransfer.2012.10.020.

[2] Togun H, Ahmadi G, Abdulrazzaq T, Shkarah AJ, Kazi SN, Badarudin A, Safaei MR. (2015). Thermal performance of nanofluid in ducts with double forward-facing steps. Journal of the Taiwan Institute of Chemical Engineers 47: 28-42. https://doi.org/10.1016/j.jtice.2014.10.009

[3] El-Maghlany WM, Elazm MM, Shehata AI, Teamah MA. (2016). A novel technique for heat transfer enhancement from a horizontal heated pipe by using nanofluid restrained flow. Journal of the Taiwan Institute of Chemical Engineers 68: 338-50. https://doi.org/10.1016/j.jtice.2016.09.024

[4] Arani AA, Amani J. (2013). Experimental investigation of diameter effect on heat transfer performance and pressure drop of TiO2–water nanofluid. Experimental Thermal and Fluid Science 44: 520-33. https://doi.org/10.1016/j.expthermflusci.2012.08.014

[5] Bianco V, Manca O, Nardini S. (2011). Numerical investigation on nanofluids turbulent convection heat transfer inside a circular tube. International Journal of Thermal Sciences 50(3): 341-9. https://doi.org/10.1016/j.ijthermalsci.2010.03.008

[6] Fabbri G. (2000). Heat transfer optimization in corrugated wall channels. International Journal of Heat and Mass Transfer 43(23): 4299-310. https://doi.org/10.1016/S0017-9310(00)00054-5

[7] Bahaidarah HM, Anand NK, Chen HC. (2005). Numerical study of heat and momentum transfer in channels with wavy walls. Numerical Heat Transfer, Part A 47(5): 417-39. https://doi.org/10.1080/10407780590891218

[8] Amiri EO. (2018). Application of computational experiments based on the response surface methodology for studying of the recirculation zone in the Y-shaped channe. Mathematical Modelling of Engineering Problems 5(3): 243-248. https://doi.org/10.18280/mmep.050317

[9] Naphon P. (2007). Laminar convective heat transfer and pressure drop in the corrugated channels. International Communications in Heat and Mass Transfer 34(1): 62-71. https://doi.org/10.1016/j.icheatmasstransfer.2006.09.003

[10] Naphon P. (2008). Effect of corrugated plates in an in-phase arrangement on the heat transfer and flow developments. International Journal of Heat and Mass Transfer 51(15-16): 3963-71. https://doi.org/10.1016/j.ijheatmasstransfer.2007.11.050

[11] Naphon P. (2009). Effect of wavy plate geometry configurations on the temperature and flow distributions. International Communications in Heat and Mass Transfer 36(9): 942-6. https://doi.org/10.1016/j.icheatmasstransfer.2009.05.007

[12] Mohamed N, Khedidja B, Abdelkader S, Belkacem Z. (2007). Heat transfer and flow field in the entrance region of a symmetric wavy-channel with constant wall heat flux density. Int. J. Dyn. Fluid 3(1): 63-79.

[13] Elshafei EA, Awad MM, El-Negiry E, Ali AG. (2010). Heat transfer and pressure drop in corrugated channels. Energy 35(1): 101-10. https://doi.org/10.1016/j.energy.2009.08.031

[14] Islamoglu Y, Parmaksizoglu C. (2003). The effect of channel height on the enhanced heat transfer characteristics in a corrugated heat exchanger channel. Applied Thermal Engineering 23(8): 979-87. https://doi.org/10.1016/S1359-4311(03)00029-2

[15] Ali MM, Ramadhyani S. (1992). Experiments on convective heat transfer in corrugated channels. Experimental Heat Transfers an International Journal 5(3): 175-93. https://doi.org/10.1080/08916159208946440

[16] Hong ZC, Zhen CE, Yang CY. (2008). Fluid dynamics and heat transfer analysis of three dimensional microchannel flows with microstructures. Numerical Heat Transfer, Part A: Applications 54(3): 293-314. https://doi.org/10.1080/10407780701790128

[17] Zhang L, Che D. (2011). Influence of corrugation profile on the thermal hydraulic performance of cross-corrugated plates. Numerical Heat Transfer, Part A: Applications 59(4): 267-96. https://doi.org/10.1080/10407782.2011.540963

[18] Yutaka A, Hiroshi N, Faghri M. (1988). Heat transfer and pressure drop characteristics in a corrugated duct with rounded corners. International Journal of Heat and Mass Transfer 31(6): 1237-45. https://doi.org/10.1016/0017-9310(88)90066-X

[19] Mohammed HA, Bhaskaran G, Shuaib NH, Abu-Mulaweh HI. (2011). Influence of nanofluids on parallel flow square microchannel heat exchanger performance. International Communications in Heat and Mass Transfer 38(1): 1-9. https://doi.org/10.1016/j.icheatmasstransfer.2010.09.007

[20] Abu-Nada E. (2008). Application of nanofluids for heat transfer enhancement of separated flows encountered in a backward facing step. International Journal of Heat and Fluid Flow 29(1): 242-9. https://doi.org/10.1016/j.ijheatfluidflow.2007.07.001

[21] Santra AK, Sen S, Chakraborty N. (2009). Study of heat transfer due to laminar flow of copper–water nanofluid through two isothermally heated parallel plates. International Journal of Thermal Sciences 48(2): 391-400. https://doi.org/10.1016/j.ijthermalsci.2008.10.004

[22] Kalteh M, Abbassi A, Saffar-Avval M, Harting J. (2011). Eulerian–Eulerian two-phase numerical simulation of nanofluid laminar forced convection in a microchannel. International Journal of Heat and Fluid Flow 32(1): 107-16. https://doi.org/10.1016/j.ijheatfluidflow.2010.08.001

[23] Ajeel RK, Salim WS. (2017). A CFD study on turbulent forced convection flow of Al2O3-water nanofluid in semi-circular corrugated channel. InIOP Conference Series: Materials Science and Engineering 243(1): 012020. https://doi.org/10.1088/1757-899X/243/1/012020

[24] Abed AM, Sopian K, Mohammed HA, Alghoul MA, Ruslan MH, Mat S, Al-Shamani AN. (2015). Enhance heat transfer in the channel with V-shaped wavy lower plate using liquid nanofluids. Case Studies in Thermal Engineering 5: 13-23. https://doi.org/10.1016/j.csite.2014.11.001

[25] Ahmed MA, Yusoff MZ, Ng KC, Shuaib NH. (2015). Numerical investigations on the turbulent forced convection of nanofluids flow in a triangular-corrugated channel. Case Studies in Thermal Engineering 6: 212-25. https://doi.org/10.1016/j.csite.2015.10.002

[26] Schlichting H, Gersten K, Krause E, Oertel HJ, Mayes C. (2000). Boundary Layer Theory Springer. Eigth Revised and Enlarged Edition.

[27] Launder BE, Sharma BI. Application of the energy-dissipation model of turbulence to the calculation of flow near a spinning disc. Letters in heat and mass transfer. 1974 Nov 1; 1(2):131-7.

[28] Mohammed HA, Abed AM, Wahid MA. (2013). The effects of geometrical parameters of a corrugated channel with in out-of-phase arrangement. International Communications in Heat and Mass Transfer 40: 47-57. https://doi.org/10.1016/j.icheatmasstransfer.2012.10.022

[29] Ahmed MA, Shuaib NH, Yusoff MZ, Al-Falahi AH. (2011). Numerical investigations of flow and heat transfer enhancement in a corrugated channel using nanofluid. International Communications in Heat and Mass Transfer 38(10): 1368-75. https://doi.org/10.1016/j.icheatmasstransfer.2011.08.013

[30] Manca O, Nardini S, Ricci D. (2012). A numerical study of nanofluid forced convection in ribbed channels. Applied Thermal Engineering 37: 280-92. https://doi.org/10.1016/j.applthermaleng.2011.11.030

[31] Vajjha RS, Das DK, Kulkarni DP. (2010). Development of new correlations for convective heat transfer and friction factor in turbulent regime for nanofluids. International Journal of Heat and Mass Transfer 53(21-22): 4607-18. https://doi.org/10.1016/j.ijheatmasstransfer.2010.06.032

[32] Koo J, Kleinstreuer C. (2005). Impact analysis of nanoparticle motion mechanisms on the thermal conductivity of nanofluids. International Communications in Heat and Mass Transfer 32(9): 1111-8. https://doi.org/10.1016/j.icheatmasstransfer.2005.05.014

[33] Incropera FP, DeWitt DP, Bergman TL, Lavine AS. (2006). Fundamentals of Heat and Mass Transfer, 6th edn.

[34] Gnielinski V. (1976). New equations for heat and mass transfer in turbulent pipe and channel flow. Int. Chem. Eng. 16(2): 359-68. 

[35] Petukhov BS. (1970). Heat transfer and friction in turbulent pipe flow with variable physical properties. In Advances in Heat Transfer 6: 503-564. https://doi.org/10.1016/S0065-2717(08)70153-9