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Experimental Study of a New Pneumatic Actuating System Using Exhaust Recycling

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  • Qihui Yu

    (Department of Mechanical Engineering, Inner Mongolia University of Science and Technology, Baotou 014010, China
    State Key Laboratory of Fluid Power and Mechatronic Systems, Zhejiang University, Hangzhou 310027, China
    Pneumatic and Thermodynamic Energy Storage and Supply Beijing Key Laboratory, Beijing 100191, China)

  • Jianwei Zhai

    (Department of Mechanical Engineering, Inner Mongolia University of Science and Technology, Baotou 014010, China)

  • Qiancheng Wang

    (Department of Mechanical Engineering, Inner Mongolia University of Science and Technology, Baotou 014010, China)

  • Xuxiao Zhang

    (Department of Mechanical Engineering, Inner Mongolia University of Science and Technology, Baotou 014010, China)

  • Xin Tan

    (Department of Mechanical Engineering, Inner Mongolia University of Science and Technology, Baotou 014010, China)

Abstract

Pneumatic actuating systems are an important power system in industrial applications. Due to exhaust loss, however, pneumatic actuating systems have suffered from a low utilization of compressed air. To recycle the exhaust energy, a novel pneumatic circuit was proposed to realize energy savings through recycling exhaust energy. The circuit consisted of three two-position three-way switch valves, which were used to control the exhaust flows into a gas tank or the ambient environment. This paper introduced the energy recovery configuration and working principles and built a mathematical model of its working process. Then, the mathematical model was verified by experiments. Finally, through experiments in which the air supply pressure, the critical pressure and the volume of the gas tank were regulated, the energy recovery characteristics of the pneumatic actuating system were obtained. Using the new circuit, the experimental results showed that the energy recovery efficiency exceeded 23%. When the air supply pressure was set to 5 bar, 6 bar, and 7 bar, the time required for pneumatic actuation to complete the three working cycles were 5.2 s, 5.3 s, and 5.9 s, respectively. When the critical pressure was set to 0 bar, 0.5 bar, 1 bar, and 1.5 bar, the times for pneumatic actuation to complete the three working cycles were 4.9 s, 5.1 s, 5.2 s, and 5.3 s, respectively. When the volume of the gas tank was set to 2 L, 3 L, 4 L, and 5 L, the number of working cycles was 3, 4, 5, and 6, respectively. This paper provides a new method of cylinder exhaust recycling and lays a good foundation for pneumatic energy savings.

Suggested Citation

  • Qihui Yu & Jianwei Zhai & Qiancheng Wang & Xuxiao Zhang & Xin Tan, 2021. "Experimental Study of a New Pneumatic Actuating System Using Exhaust Recycling," Sustainability, MDPI, vol. 13(4), pages 1-14, February.
    • Handle: RePEc:gam:jsusta:v:13:y:2021:i:4:p:1645-:d:492791
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    References listed on IDEAS

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    1. Yan Shi & Guanwei Jia & Maolin Cai & Weiqing Xu, 2015. "Study on the Dynamics of Local Pressure Boosting Pneumatic System," Mathematical Problems in Engineering, Hindawi, vol. 2015, pages 1-11, September.
    2. Saidur, R. & Rahim, N.A. & Hasanuzzaman, M., 2010. "A review on compressed-air energy use and energy savings," Renewable and Sustainable Energy Reviews, Elsevier, vol. 14(4), pages 1135-1153, May.
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    Cited by:

    1. Dominik Gryboś & Jacek S. Leszczyński, 2024. "A Review of Energy Overconsumption Reduction Methods in the Utilization Stage in Compressed Air Systems," Energies, MDPI, vol. 17(6), pages 1-22, March.
    2. Ryszard Dindorf & Jakub Takosoglu & Piotr Wos, 2023. "Review of Compressed Air Receiver Tanks for Improved Energy Efficiency of Various Pneumatic Systems," Energies, MDPI, vol. 16(10), pages 1-37, May.
    3. Ryszard Dindorf, 2024. "Study of the Energy Efficiency of Compressed Air Storage Tanks," Sustainability, MDPI, vol. 16(4), pages 1-37, February.

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