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Multi-objective optimization of a cooling channel with staggered elliptic dimples

Author

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  • Kim, Hyun-Min
  • Moon, Mi-Ae
  • Kim, Kwang-Yong

Abstract

The present work deals with a numerical procedure for optimizing a cooling channel with staggered elliptic dimples to enhance heat transfer and also to reduce the pressure loss. Three-dimensional Reynolds-averaged Navier–Stokes analysis is employed in conjunction with the SST model for predicting the turbulent flow and heat transfer. Three non-dimensional geometric design variables, such as the elliptic dimple diameter ratio, ratio of the dimple depth to average diameter, and ratio of the streamwise distance to spanwise distance between dimples are considered for the optimization. Twenty-one design points within the design space are selected by Latin hypercube sampling. Each objective-function value at these points is evaluated by RANS analysis to construct a surrogate model using the Kriging approach. A hybrid evolutionary multi-objective algorithm has been employed to find optimized designs considering the heat transfer and friction loss. Two extreme optimum designs on the Pareto-optimal front with regard to the heat transfer and pressure loss, respectively, have spanwise and streamwise elliptic dimple shapes, respectively, which increase the heat-transfer rate by 32.8% and decrease the pressure loss by 34.6%, respectively, compared to the reference design.

Suggested Citation

  • Kim, Hyun-Min & Moon, Mi-Ae & Kim, Kwang-Yong, 2011. "Multi-objective optimization of a cooling channel with staggered elliptic dimples," Energy, Elsevier, vol. 36(5), pages 3419-3428.
    • Handle: RePEc:eee:energy:v:36:y:2011:i:5:p:3419-3428
    DOI: 10.1016/j.energy.2011.03.043
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    Citations

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    Cited by:

    1. Zhen Zhao & Liang Xu & Jianmin Gao & Lei Xi & Qicheng Ruan & Yunlong Li, 2022. "Multi-Objective Optimization of Parameters of Channels with Staggered Frustum of a Cone Based on Response Surface Methodology," Energies, MDPI, vol. 15(3), pages 1-19, February.
    2. Hamid, Mohammed O.A. & Zhang, Bo & Yang, Luopeng, 2014. "Application of field synergy principle for optimization fluid flow and convective heat transfer in a tube bundle of a pre-heater," Energy, Elsevier, vol. 76(C), pages 241-253.
    3. Liu, Jian & Song, Yidan & Xie, Gongnan & Sunden, Bengt, 2015. "Numerical modeling flow and heat transfer in dimpled cooling channels with secondary hemispherical protrusions," Energy, Elsevier, vol. 79(C), pages 1-19.
    4. Xia, H.H. & Tang, G.H. & Shi, Y. & Tao, W.Q., 2014. "Simulation of heat transfer enhancement by longitudinal vortex generators in dimple heat exchangers," Energy, Elsevier, vol. 74(C), pages 27-36.
    5. Choi, Seok Min & Kwon, Hyun Goo & Kim, Taehyun & Moon, Hee Koo & Cho, Hyung Hee, 2022. "Active cooling of photovoltaic (PV) cell by acoustic excitation in single-dimpled internal channel," Applied Energy, Elsevier, vol. 309(C).
    6. Luo, Lei & Du, Wei & Wang, Songtao & Wang, Lei & Sundén, Bengt & Zhang, Xinhong, 2017. "Multi-objective optimization of a solar receiver considering both the dimple/protrusion depth and delta-winglet vortex generators," Energy, Elsevier, vol. 137(C), pages 1-19.
    7. Şevik, Seyfi & Özdilli, Özgür & Abuşka, Mesut, 2022. "Experimental investigation of relative roughness height effect in solar air collector with convex dimples," Renewable Energy, Elsevier, vol. 194(C), pages 100-116.

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