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PORE FLOW FRACTAL PROPERTIES OF POROUS LiOH ABSORBENTS

Author

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  • YUANCHAO CHEN

    (Hubei Provincial Key Laboratory of Chemical Equipment, Intensification and Intrinsic Safety, School of Mechanical and Electrical Engineering, Wuhan Institute of Technology, Wuhan 430205, P. R. China2Hubei Provincial Engineering Technology, Research Center of Green Chemical Equipment, School of Mechanical and Electrical Engineering, Wuhan Institute of Technology, Wuhan 430205, P. R. China)

  • JIYIN CAO

    (Hubei Provincial Key Laboratory of Chemical Equipment, Intensification and Intrinsic Safety, School of Mechanical and Electrical Engineering, Wuhan Institute of Technology, Wuhan 430205, P. R. China2Hubei Provincial Engineering Technology, Research Center of Green Chemical Equipment, School of Mechanical and Electrical Engineering, Wuhan Institute of Technology, Wuhan 430205, P. R. China)

  • RUI ZHOU

    (Hubei Provincial Key Laboratory of Chemical Equipment, Intensification and Intrinsic Safety, School of Mechanical and Electrical Engineering, Wuhan Institute of Technology, Wuhan 430205, P. R. China2Hubei Provincial Engineering Technology, Research Center of Green Chemical Equipment, School of Mechanical and Electrical Engineering, Wuhan Institute of Technology, Wuhan 430205, P. R. China)

  • XIA YANG

    (Hubei Provincial Key Laboratory of Chemical Equipment, Intensification and Intrinsic Safety, School of Mechanical and Electrical Engineering, Wuhan Institute of Technology, Wuhan 430205, P. R. China2Hubei Provincial Engineering Technology, Research Center of Green Chemical Equipment, School of Mechanical and Electrical Engineering, Wuhan Institute of Technology, Wuhan 430205, P. R. China)

  • LONGFEI WANG

    (Hubei Provincial Key Laboratory of Chemical Equipment, Intensification and Intrinsic Safety, School of Mechanical and Electrical Engineering, Wuhan Institute of Technology, Wuhan 430205, P. R. China2Hubei Provincial Engineering Technology, Research Center of Green Chemical Equipment, School of Mechanical and Electrical Engineering, Wuhan Institute of Technology, Wuhan 430205, P. R. China)

Abstract

The flow law of carbon dioxide in the pores of the novel porous LiOH adsorbent is studied, and the intrinsic relationship between the pore structure of the absorbent and the fractal dimension is analyzed. In this paper, the fractal structure — Sierpinski–Menger sponge structure — is used to establish a three-dimensional fractal pore model to achieve different porosities and pore structures. The flow process of the working fluid is numerically simulated, and the flow law under different flow velocities (1, 0.1, and 0.01 mm/s) is analyzed. The simulation results show that the flow of gas in the Sierpinski–Menger sponge structure has fractal characteristics. The streamlines and velocity clouds of different pore structures and porosities reflect the distribution characteristics of the flow velocity in the porous media. The velocity field and pressure field distribution of sponge models of different series are consistent, which has obvious self-similarity symmetry. It provides a numerical reference for the study of the pore adsorption law of real LiOH absorbent.

Suggested Citation

  • Yuanchao Chen & Jiyin Cao & Rui Zhou & Xia Yang & Longfei Wang, 2023. "PORE FLOW FRACTAL PROPERTIES OF POROUS LiOH ABSORBENTS," FRACTALS (fractals), World Scientific Publishing Co. Pte. Ltd., vol. 31(08), pages 1-12.
    • Handle: RePEc:wsi:fracta:v:31:y:2023:i:08:n:s0218348x23401722
    DOI: 10.1142/S0218348X23401722
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