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Prediction of the phase distribution of diesel/CNG bubbly flow in a horizontal pipe under the influence of a magnetic field

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Abstract

This paper describes an analytical study of the magneto hydrodynamics of small CNG bubbles in laminar horizontal diesel flow under the influence of a magnetic field. The investigation is based on experiments carried out to identify the effect of varying the magnetic field intensity on the trajectory, the formation of bubbles and their shape and velocity in the flow. Different images at different positions downstream of the CNG bubbles injection point were captured by a high speed camera and analyzed by image processing techniques provided information on bubble velocity, bubbles size, spatial location and gas area fraction as a function of changing the magnetic field intensity. The outcomes confirmed that CNG bubbles under magnetic field grow up vertically to an elliptical shape in the diesel phase with a mean diameter about twice that of the original bubble. It was also noticed that the velocity of the CNG bubbles decreased as the strength of the magnetic field increased.

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Authors and Affiliations

  1. Centre for Automotive Research and Electric Mobility, Mechanical Engineering Department, Universiti Teknologi PETRONAS, 32610, Bandar Seri Iskandar, Perak, Malaysia

    Hasanain A. Abdul Wahhab & A. Rashid A. Aziz

  2. Mechanical Engineering Department, University of Technology, Baghdad, Iraq

    Hasanain A. Abdul Wahhab

  3. Mechanical Engineering Department, Universiti Teknologi PETRONAS, 32610, Bandar Seri Iskandar, Perak, Malaysia

    Hussain H. Al-Kayiem, Mohammed S. Nasif & Lukmon O. Afolabi

Authors
  1. Hasanain A. Abdul Wahhab
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  2. A. Rashid A. Aziz
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  3. Hussain H. Al-Kayiem
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  4. Mohammed S. Nasif
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  5. Lukmon O. Afolabi
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Corresponding author

Correspondence to A. Rashid A. Aziz.

Additional information

Recommended by Associate Editor Weon Gyu Shin

Hasanain A. Abdul Wahhab had B.Sc. of Mechanical Engineering from University of Technology 1996 and M.Sc. of mechanical engineering with combustion field from University of Technology 2000 in Iraq. He is a Lecturer in Mechanical Engineering Department at University of Technology-Baghdad. Currently, his research work is focused on pre-mixing dieselgas fuel two phase by utilizing magnetization fluid. He has membership with Iraqi engineers union.

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Wahhab, H.A.A., Aziz, A.R.A., Al-Kayiem, H.H. et al. Prediction of the phase distribution of diesel/CNG bubbly flow in a horizontal pipe under the influence of a magnetic field. J Mech Sci Technol 31, 5299–5309 (2017). https://doi.org/10.1007/s12206-017-1024-1

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  • DOI: https://doi.org/10.1007/s12206-017-1024-1

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