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<p>This study quantitatively examines the impact of magnetic fields on methane flame characteristics, specifically analyzing changes in flame height, width, and velocity. Using flame photography and Particle Image Velocimetry (PIV), the effects of varying magnetic field strengths (ranging from 25 to 45 mT) on flame behavior were measured across equivalence ratios (<i>φ</i>) from 0.8 to 2.0. The results reveal that applying a magnetic field increases flame height by up to 6.75% while reducing flame width by approximately 6% under a field strength of 45 mT at <i>φ</i>=2.0. Additionally, PIV data demonstrate a significant increase in upward flame velocity, with an observed enhancement of 20% at higher magnetic field intensities. The gradient magnetic field was found to reduce flame distortion, leading to a smoother flame profile. Compared to the control group (M0, with no magnetic field), these findings confirm that magnetic fields can effectively adjust flame properties. This study underscores the potential of magnetic fields in optimizing combustion processes.</p>

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Effect of Permanent Magnetic Field on Premixed CH4 Flames

  • 期刊论文

  • 发表日期：

    2025年4月25日

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  • Muhammad Bilal,
  • Bipro Gain,
  • Kairu Jin,
  • Zhenyu Tian

摘要

This study quantitatively examines the impact of magnetic fields on methane flame characteristics, specifically analyzing changes in flame height, width, and velocity. Using flame photography and Particle Image Velocimetry (PIV), the effects of varying magnetic field strengths (ranging from 25 to 45 mT) on flame behavior were measured across equivalence ratios (φ) from 0.8 to 2.0. The results reveal that applying a magnetic field increases flame height by up to 6.75% while reducing flame width by approximately 6% under a field strength of 45 mT at φ=2.0. Additionally, PIV data demonstrate a significant increase in upward flame velocity, with an observed enhancement of 20% at higher magnetic field intensities. The gradient magnetic field was found to reduce flame distortion, leading to a smoother flame profile. Compared to the control group (M0, with no magnetic field), these findings confirm that magnetic fields can effectively adjust flame properties. This study underscores the potential of magnetic fields in optimizing combustion processes.