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Investigations on the Diesel Spray Characteristic and Tip Penetration Model of Multi-Hole Injector with Micro-Hole under Ultra-High Injection Pressure

Author

Listed:
  • Chang Zhai

    (Renewable Energy Research Center, National Institute of Advanced Industrial Science and Technology (AIST), 1-2-1 Namiki, Tsukuba 305-8564, Ibaraki, Japan)

  • Feixiang Chang

    (School of Mechanical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212100, China)

  • Yu Jin

    (Institute for Energy Research, Jiangsu University, Zhenjiang 212013, China)

  • Hongliang Luo

    (College of Power and Energy Engineering, Harbin Engineering University, Harbin 150001, China)

Abstract

Increasing the injection pressure has a significant impact on atomization and combustion characteristics. Spray tip penetration serves as a vital parameter for fuel injection control and engine structure design. However, a reliable spray tip penetration model for ultra-high-pressure injection is currently lacking. To address this gap, this study establishes a theoretical 0-dimensional model for spray tip penetration under ultra-high pressure (300 MPa) conditions. The model is based on the conservation of momentum and phenomenological models. The new model divides spray tip penetration into two stages: Pre-breakup and post-breakup, with fuel injection rate and spray cone angle used as model inputs. To validate the model, high-speed camera observations and constant-volume chamber experiments are conducted to investigate the spray characteristics. The results indicate that the new spray tip penetration model demonstrates improved predictive accuracy across all experimental conditions.

Suggested Citation

  • Chang Zhai & Feixiang Chang & Yu Jin & Hongliang Luo, 2023. "Investigations on the Diesel Spray Characteristic and Tip Penetration Model of Multi-Hole Injector with Micro-Hole under Ultra-High Injection Pressure," Sustainability, MDPI, vol. 15(14), pages 1-17, July.
  • Handle: RePEc:gam:jsusta:v:15:y:2023:i:14:p:11114-:d:1195655
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    References listed on IDEAS

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    1. Omer, Abdeen Mustafa, 2008. "Energy, environment and sustainable development," Renewable and Sustainable Energy Reviews, Elsevier, vol. 12(9), pages 2265-2300, December.
    2. Mohan, Balaji & Yang, Wenming & Chou, Siaw kiang, 2013. "Fuel injection strategies for performance improvement and emissions reduction in compression ignition engines—A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 28(C), pages 664-676.
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