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Comprehensive Spray Characteristics of Water in Port Fuel Injection Injector

Author

Listed:
  • Jeonghyun Park

    (Department of Mechanical Engineering, Graduate School of Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju 61186, Korea)

  • Kyung-Hwan Lee

    (School of Mechanical and Aerospace Engineering, Sunchon National University, 255 Jungang-ro, Suncheon-si, Jeonnam 57922, Korea)

  • Suhan Park

    (School of Mechanical Engineering, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju 61186, Korea)

Abstract

The objective of this study was to compare the injection and spray characteristics of water with n-heptane using a port fuel injection (PFI) system. In this study, the injection pressure was changed to 0.3–0.9 Mpa and the energizing duration was changed to 0.5–4 ms. To investigate spray characteristics, the injection quantities of n-heptane and water were measured. Macroscopic spray characteristics were determined through spray visualization. The Sauter mean diameter (SMD) and velocity of spray droplets were measured with a phase Doppler anemometry (PDA) experiment. Spray tip penetration, spray angle, SMD of droplets, and spray droplet velocity were compared. As the injection pressure increased, the injection quantity and the droplets velocity increased. However, the spray tip penetration, SMD of the droplet, and the spray angle decreased. The increase in energizing duration led to an increase in the injection quantity without affecting other spray characteristics. The higher density of water also increased injection quantity, resulting in a decrease in spray tip penetration and increases of SMD and velocity of spray droplets due to high viscosity and surface tension of water.

Suggested Citation

  • Jeonghyun Park & Kyung-Hwan Lee & Suhan Park, 2020. "Comprehensive Spray Characteristics of Water in Port Fuel Injection Injector," Energies, MDPI, vol. 13(2), pages 1-13, January.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:2:p:396-:d:308321
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    References listed on IDEAS

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    1. Zhen, Xudong & Wang, Yang & Xu, Shuaiqing & Zhu, Yongsheng & Tao, Chengjun & Xu, Tao & Song, Mingzhi, 2012. "The engine knock analysis – An overview," Applied Energy, Elsevier, vol. 92(C), pages 628-636.
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    2. Thiago Rodrigo Vieira da Silva & Nilton Antonio Diniz Netto & Jeanine Costa Santos & Augusto Cesar Teixeira Malaquias & José Guilherme Coelho Baêta, 2022. "Development Procedure for Performance Estimation and Main Dimensions Calculation of a Highly-Boosted Ethanol Engine with Water Injection," Energies, MDPI, vol. 15(13), pages 1-24, June.
    3. Magdalena Szwaja & Jeffrey D. Naber & David Shonnard & Daniel Kulas & Ali Zolghadr & Stanislaw Szwaja, 2022. "Comparative Analysis of Injection of Pyrolysis Oil from Plastics and Gasoline into the Engine Cylinder and Atomization by a Direct High-Pressure Injector," Energies, MDPI, vol. 16(1), pages 1-11, December.

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