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Numerical Analysis of Nozzle Flow and Spray Characteristics from Different Nozzles Using Diesel and Biofuel Blends

Author

Listed:
  • M.H.H. Ishak

    (School of Aerospace Engineering, Universiti Sains Malaysia, Engineering Campus, 14300 Nibong Tebal, Penang, Malaysia)

  • Farzad Ismail

    (School of Aerospace Engineering, Universiti Sains Malaysia, Engineering Campus, 14300 Nibong Tebal, Penang, Malaysia)

  • Sharzali Che Mat

    (Faculty of Mechanical Engineering, Universiti Teknologi MARA Pulau Pinang, 13500 Permatang Pauh, Pulau Pinang, Malaysia)

  • M.Z. Abdullah

    (School of Mechanical Engineering, Universiti Sains Malaysia, Engineering Campus, 14300 Nibong Tebal, Penang, Malaysia)

  • M.S. Abdul Aziz

    (School of Mechanical Engineering, Universiti Sains Malaysia, Engineering Campus, 14300 Nibong Tebal, Penang, Malaysia)

  • M.Y. Idroas

    (School of Mechanical Engineering, Universiti Sains Malaysia, Engineering Campus, 14300 Nibong Tebal, Penang, Malaysia)

Abstract

In this paper, the discrete phase model (DPM) was introduced to study the fuel injector cavitations process and the macro spray characteristic of three different types of nozzle spray shape with diesel and hybrid biofuel blend for several injection pressures and backpressures. The three types of nozzle spray shapes used were circle, elliptical A type, and elliptical B type. The cavitations’ flows inside the injector nozzles were simulated with Computer Fluid Dynamics (CFD) simulations using the cavitations mixture approach. The effect of nozzle spray shape towards the spray characteristic of hybrid biofuel blends is analyzed and compared with the standard diesel. Furthermore, a verification and validation from both the experimental results and numerical results are also presented. The nozzle flow simulation results indicated that the fuel type did not affect the cavitation area vastly, but were more dependent on the nozzle spray shape. In addition, the spray width of the elliptical nozzle shape was higher as compared to the circular spray. Moreover, as the backpressure increased, the spray width downstream increased as well. The spray tip penetration for the elliptical nozzle shape was shorter than the circular nozzle shape due to circular nozzles having smaller nozzle widths and lesser spray cone angles. Thus, this resulted in smaller aerodynamic drag.

Suggested Citation

  • M.H.H. Ishak & Farzad Ismail & Sharzali Che Mat & M.Z. Abdullah & M.S. Abdul Aziz & M.Y. Idroas, 2019. "Numerical Analysis of Nozzle Flow and Spray Characteristics from Different Nozzles Using Diesel and Biofuel Blends," Energies, MDPI, vol. 12(2), pages 1-25, January.
    • Handle: RePEc:gam:jeners:v:12:y:2019:i:2:p:281-:d:198413
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    Cited by:

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    2. Mingfei Mu & Jonas Sjöblom & Henrik Ström & Xinghu Li, 2019. "Analysis of the Flow Field from Connection Cones to Monolith Reactors," Energies, MDPI, vol. 12(3), pages 1-20, January.
    3. Teuku Azuar Rizal & Khairil & Mahidin & Husni Husin & Ahmadi & Fahrizal Nasution & Hamdani Umar, 2022. "The Experimental Study of Pangium Edule Biodiesel in a High-Speed Diesel Generator for Biopower Electricity," Energies, MDPI, vol. 15(15), pages 1-15, July.
    4. Robert Keser & Alberto Ceschin & Michele Battistoni & Hong G. Im & Hrvoje Jasak, 2020. "Development of a Eulerian Multi-Fluid Solver for Dense Spray Applications in OpenFOAM," Energies, MDPI, vol. 13(18), pages 1-18, September.

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