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Experiment on the effect of Pt-catalyst on the characteristics of a small heat-regenerative CH4-air premixed combustor

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  • Lee, Min Jung
  • Kim, Nam Il

Abstract

Heat-regenerative small combustors consisting of a combustion space and a pair of counter-current-channels were fabricated. The methane-air combustion characteristics in the combustion space were examined with and without catalytic platinum wires. The installing locations and scale effects of the platinum wires were varied to distinguish between thermo-fluidic and catalytic effects. Temperature distribution through the channels and the compositions of burned gas were measured. Conclusively, the platinum wires in the upstream channel slightly enhanced flame stabilization by an enhanced heat transfer, not by a catalytic reaction. In contrast, the platinum wire located within the recirculation area of the combustion space promoted the catalytic reaction and extended the self-sustainable reaction conditions when it had sufficient surface area. Two reaction regimes, of an ordinary gas reaction and of a catalytic reaction, were distinguished and a hysteresis in the reaction-mode transition was confirmed through the comparison of CO, O2, and methane across the transition conditions.

Suggested Citation

  • Lee, Min Jung & Kim, Nam Il, 2010. "Experiment on the effect of Pt-catalyst on the characteristics of a small heat-regenerative CH4-air premixed combustor," Applied Energy, Elsevier, vol. 87(11), pages 3409-3416, November.
    • Handle: RePEc:eee:appene:v:87:y:2010:i:11:p:3409-3416
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    References listed on IDEAS

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    1. Mujeebu, M. Abdul & Abdullah, M.Z. & Bakar, M.Z. Abu & Mohamad, A.A. & Abdullah, M.K., 2009. "Applications of porous media combustion technology - A review," Applied Energy, Elsevier, vol. 86(9), pages 1365-1375, September.
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    1. Shirsat, V. & Gupta, A.K., 2011. "A review of progress in heat recirculating meso-scale combustors," Applied Energy, Elsevier, vol. 88(12), pages 4294-4309.
    2. Zhu, Mingming & Ma, Yu & Zhang, Dongke, 2012. "Effect of a homogeneous combustion catalyst on the combustion characteristics and fuel efficiency in a diesel engine," Applied Energy, Elsevier, vol. 91(1), pages 166-172.
    3. Gurunadh Velidi & Chun Sang Yoo, 2023. "A Review on Flame Stabilization Technologies for UAV Engine Micro-Meso Scale Combustors: Progress and Challenges," Energies, MDPI, vol. 16(9), pages 1-44, May.

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