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<p>This study presents a computational investigation of various minichannel configurations to enhance heat transfer for battery surface cooling in electric and hybrid electric vehicles. Nanofluids and rib structures are incorporated to achieve improved thermal performance. Copper oxide (CuO)/water nanofluid is employed as the coolant, while ribs are introduced to disturb the boundary layer and generate eddies, thereby intensifying convective heat transfer. Magnetic fields are further applied to promote eddy formation and augment the overall heat transfer rate. To determine the optimal configuration, the Nusselt number (Nu), friction factor (<i>f</i>), Colburn j-factor, and thermal enhancement factor (TEF) are evaluated using empirical correlations. The upstream staggered ribbed configuration demonstrates a 136.036% increase in Nu and a 136.045% rise in the Colburn j-factor compared with a plain channel using water as the base fluid. The corresponding TEF value of 1.92 confirms its superior heat transfer performance. The findings establish that the integration of ribs, magnetic fields, and nanofluid coolants offers a promising approach for enhancing thermal management and extending battery life in electric vehicle applications.</p>

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Magneto-hydrodynamic of inclined ribbed minichannel systems for high-performance battery cooling applications

  • 期刊论文

  • 发表日期：

    2025年11月14日

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  • Nancy Maurya,
  • Asif Afzal,
  • Nirmalendu Biswas,
  • Suvanjan Bhattacharyya

摘要

This study presents a computational investigation of various minichannel configurations to enhance heat transfer for battery surface cooling in electric and hybrid electric vehicles. Nanofluids and rib structures are incorporated to achieve improved thermal performance. Copper oxide (CuO)/water nanofluid is employed as the coolant, while ribs are introduced to disturb the boundary layer and generate eddies, thereby intensifying convective heat transfer. Magnetic fields are further applied to promote eddy formation and augment the overall heat transfer rate. To determine the optimal configuration, the Nusselt number (Nu), friction factor (f), Colburn j-factor, and thermal enhancement factor (TEF) are evaluated using empirical correlations. The upstream staggered ribbed configuration demonstrates a 136.036% increase in Nu and a 136.045% rise in the Colburn j-factor compared with a plain channel using water as the base fluid. The corresponding TEF value of 1.92 confirms its superior heat transfer performance. The findings establish that the integration of ribs, magnetic fields, and nanofluid coolants offers a promising approach for enhancing thermal management and extending battery life in electric vehicle applications.