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<p>This study designed catalytic corrugated plates to enhance the hydrogen removal efficiency of a passive autocatalytic recombiner (PAR) facility using a nuclear power plant. After validating computational fluid dynamics (CFD) modeling and simulation with the experimental data of the reported REKO-3 facility using flat-type plates, the treated H<sub>2</sub> mole fraction and catalytic plate efficiency of the REKO-3 facility was evaluated as a comparison reference. New corrugated plates, to improve the contact between the catalytic plate and gas, were designed by considering the angle and number of corrugated plates (90-Type A, 90-Type B, 120-Type A, and 120-Type B). Under identical boundary conditions, we evaluated the H₂ mole fraction, pressure drop, velocity, and temperature. The 120-Type A corrugated plate significantly enhanced the overall performance. Examining the diverse catalytic plate shapes yielded a significant parametric correlation with the reduction in the effluent H<sub>2</sub> mole fraction. This study emphasizes the importance of catalytic plate design and efficiency through a comparative analysis of results under the identical boundary conditions of the REKO-3 facility. Additionally, it provides insights into facility design and maintenance for H<sub>2</sub> treatment in an emission gas.</p>

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Enhanced H2 Removal Efficiency of Catalytic Corrugated Plates in Passive Autocatalytic Recombiner System by CFD Simulation

  • 期刊论文

  • 发表日期：

    2026年2月2日

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  • Rakyoung Jeon,
  • Hyun Chul Lee,
  • Jaehoon Jung,
  • Chang-Ha Lee

摘要

This study designed catalytic corrugated plates to enhance the hydrogen removal efficiency of a passive autocatalytic recombiner (PAR) facility using a nuclear power plant. After validating computational fluid dynamics (CFD) modeling and simulation with the experimental data of the reported REKO-3 facility using flat-type plates, the treated H2 mole fraction and catalytic plate efficiency of the REKO-3 facility was evaluated as a comparison reference. New corrugated plates, to improve the contact between the catalytic plate and gas, were designed by considering the angle and number of corrugated plates (90-Type A, 90-Type B, 120-Type A, and 120-Type B). Under identical boundary conditions, we evaluated the H₂ mole fraction, pressure drop, velocity, and temperature. The 120-Type A corrugated plate significantly enhanced the overall performance. Examining the diverse catalytic plate shapes yielded a significant parametric correlation with the reduction in the effluent H2 mole fraction. This study emphasizes the importance of catalytic plate design and efficiency through a comparative analysis of results under the identical boundary conditions of the REKO-3 facility. Additionally, it provides insights into facility design and maintenance for H2 treatment in an emission gas.