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Heat transfer and pressure drop in corrugated channels

Author

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  • Elshafei, E.A.M.
  • Awad, M.M.
  • El-Negiry, E.
  • Ali, A.G.

Abstract

The convective heat transfer and pressure drop characteristics of flow in corrugated channels have been experimentally investigated. Experiments were performed on channels of uniform wall temperature and of fixed corrugation ratio over a range of Reynolds number, 3220≤Re≤9420. The effects of channel spacing and phase shift variations on heat transfer and pressure drop are discussed. Results of corrugated channels flow showed a significant heat transfer enhancement accompanied by increased pressure drop penalty. The average heat transfer coefficient and pressure drop enhanced by a factor of 2.6 up to 3.2 and 1.9 to 2.6 relative to those for parallel plate channel, respectively, depending upon the spacing and phase shift. The friction factor increased with increasing channel spacing and its phase shift. The effect of spacing variations on heat transfer and friction factor was more pronounced than that of phase shift variation, especially at high Reynolds number. Comparing results of the tested channels by considering the flow area goodness factor (j/f), it was better for corrugated channel with spacing ratio, ɛ≤3.0 and of phase shift, Ø≤90°. Comparisons of the present data with those available in literature are presented and discussed.

Suggested Citation

  • Elshafei, E.A.M. & Awad, M.M. & El-Negiry, E. & Ali, A.G., 2010. "Heat transfer and pressure drop in corrugated channels," Energy, Elsevier, vol. 35(1), pages 101-110.
    • Handle: RePEc:eee:energy:v:35:y:2010:i:1:p:101-110
    DOI: 10.1016/j.energy.2009.08.031
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    Cited by:

    1. Mohammed, Kafel A. & Abu Talib, A.R. & Nuraini, A.A. & Ahmed, K.A., 2017. "Review of forced convection nanofluids through corrugated facing step," Renewable and Sustainable Energy Reviews, Elsevier, vol. 75(C), pages 234-241.
    2. Osorio, Julian D. & Hovsapian, Rob & Ordonez, Juan C., 2016. "Effect of multi-tank thermal energy storage, recuperator effectiveness, and solar receiver conductance on the performance of a concentrated solar supercritical CO2-based power plant operating under di," Energy, Elsevier, vol. 115(P1), pages 353-368.
    3. El-Sebaii, A.A. & Al-Snani, H., 2010. "Effect of selective coating on thermal performance of flat plate solar air heaters," Energy, Elsevier, vol. 35(4), pages 1820-1828.
    4. Liu, X.P. & Niu, J.L., 2014. "An optimal design analysis method for heat recovery devices in building applications," Applied Energy, Elsevier, vol. 129(C), pages 364-372.
    5. Jingang Yang & Yaohua Zhao & Aoxue Chen & Zhenhua Quan, 2019. "Thermal Performance of a Low-Temperature Heat Exchanger Using a Micro Heat Pipe Array," Energies, MDPI, vol. 12(4), pages 1-16, February.
    6. Hwang, Sang Dong & Kwon, Hyun Goo & Cho, Hyung Hee, 2010. "Local heat transfer and thermal performance on periodically dimple-protrusion patterned walls for compact heat exchangers," Energy, Elsevier, vol. 35(12), pages 5357-5364.
    7. Li, Qi & Flamant, Gilles & Yuan, Xigang & Neveu, Pierre & Luo, Lingai, 2011. "Compact heat exchangers: A review and future applications for a new generation of high temperature solar receivers," Renewable and Sustainable Energy Reviews, Elsevier, vol. 15(9), pages 4855-4875.
    8. Mardiana, A. & Riffat, S.B., 2013. "Review on physical and performance parameters of heat recovery systems for building applications," Renewable and Sustainable Energy Reviews, Elsevier, vol. 28(C), pages 174-190.
    9. Stanislav Kotšmíd & Zuzana Brodnianská, 2022. "The Effect of Diameter and Position of Transverse Cylindrical Vortex Generators on Heat Transfer Improvement in a Wavy Channel," Mathematics, MDPI, vol. 10(23), pages 1-22, December.

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