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Planned Heating Control Strategy and Thermodynamic Modeling of a Natural Gas Thermal Desorption System for Contaminated Soil

Author

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  • Hui-Juan Xu

    (Advanced Research Center of Thermal and New Energy Technologies, Xingtai Polytechnic College, Xingtai 054035, China)

  • Yun-Ze Li

    (Advanced Research Center of Thermal and New Energy Technologies, Xingtai Polytechnic College, Xingtai 054035, China
    School of Aeronautic Science and Engineering, Beihang University, Beijing 100191, China
    Institute of Engineering Thermophysics, North China University of Water Resources and Electric Power, Zhengzhou 450045, China)

  • Li-Jun Gao

    (Advanced Research Center of Thermal and New Energy Technologies, Xingtai Polytechnic College, Xingtai 054035, China)

  • Xin Zhang

    (Advanced Research Center of Thermal and New Energy Technologies, Xingtai Polytechnic College, Xingtai 054035, China)

Abstract

This paper presents a planned heating control strategy applied for a natural gas thermal desorption system for polluted soil to achieve the dynamic adjustment of the heating time and energy consumption. A lumped-parameter model for the proposed system is established to examine effects of the natural gas mass flow rate and the excess air coefficient on the heating performance of the target soil. The control strategy is explored to accomplish the heating process as expected with constant temperature change rate or constant volumetric water content change rate at different phases by adapting the natural gas flow. The results demonstrate that the heating plan can be realized within the scheduled 36 days and the total natural gas consumption can be reduced by 24% (1487 kg) compared to that of the open-loop reference condition, which may be widely applied for other thermal remediation systems of the polluted soil.

Suggested Citation

  • Hui-Juan Xu & Yun-Ze Li & Li-Jun Gao & Xin Zhang, 2020. "Planned Heating Control Strategy and Thermodynamic Modeling of a Natural Gas Thermal Desorption System for Contaminated Soil," Energies, MDPI, vol. 13(3), pages 1-28, February.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:3:p:642-:d:315865
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    References listed on IDEAS

    as
    1. Tian-Tian Li & Yun-Ze Li & Zhuang-Zhuang Zhai & En-Hui Li & Tong Li, 2019. "Energy-Saving Strategies and their Energy Analysis and Exergy Analysis for In Situ Thermal Remediation System of Polluted-Soil," Energies, MDPI, vol. 12(20), pages 1-28, October.
    2. Tiankui Li & Yi Liu & Sijie Lin & Yangze Liu & Yunfeng Xie, 2019. "Soil Pollution Management in China: A Brief Introduction," Sustainability, MDPI, vol. 11(3), pages 1-15, January.
    3. Weishu Wang & Chuang Li & Yun-Ze Li & Man Yuan & Tong Li, 2019. "Numerical Analysis of Heat Transfer Performance of In Situ Thermal Remediation of Large Polluted Soil Areas," Energies, MDPI, vol. 12(24), pages 1-23, December.
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    Cited by:

    1. Artun Sel & Bilgehan Sel & Cosku Kasnakoglu, 2021. "GLSDC Based Parameter Estimation Algorithm for a PMSM Model," Energies, MDPI, vol. 14(3), pages 1-12, January.

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