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Abstract <p>We theoretically estimated the maximum achievable efficiency of radiative burners with filtration gas combustion in a porous medium. The theoretical estimates obtained for a cylindrical burner with two coaxial porous shells, between which the flame is stabilized, and for a single-layer porous burner with filtration combustion of combustion gas. In the first case, heat regeneration is carried out due to radiation heat exchange between the layers, and in the second case, it occurs due to the thermal conductivity of the porous frame. It has been shown that the radiation efficiency of the burners is approximately the same and does not depend on the heat recovery way. At the same time, a two-layer system has an obvious advantage over a single-layer burner due to significantly lower material consumption and lower hydraulic losses when filtering gas through a porous medium.</p>

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Gas Combustion in Two-Layer Cylindrical Burner with Return by Radiative Heat Exchange

  • 期刊论文

  • 发表日期：

    2025年9月1日

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  • S. S. Minaev,
  • E. P. Dats,
  • S. N. Mokrin

摘要

Abstract

We theoretically estimated the maximum achievable efficiency of radiative burners with filtration gas combustion in a porous medium. The theoretical estimates obtained for a cylindrical burner with two coaxial porous shells, between which the flame is stabilized, and for a single-layer porous burner with filtration combustion of combustion gas. In the first case, heat regeneration is carried out due to radiation heat exchange between the layers, and in the second case, it occurs due to the thermal conductivity of the porous frame. It has been shown that the radiation efficiency of the burners is approximately the same and does not depend on the heat recovery way. At the same time, a two-layer system has an obvious advantage over a single-layer burner due to significantly lower material consumption and lower hydraulic losses when filtering gas through a porous medium.