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%20%20%20%20Hydrogen-assisted%20self-ignition%20of%20propane-air%20mixtures%20in%20catalytic%20micro-combustor%20in%20the%20sequential%20feed%20mode
Research article
  

Hydrogen-assisted self-ignition of propane-air mixtures in catalytic micro-combustor in the sequential feed mode


Junjie Chen, Deguang Xu

School of Mechanical and Power Engineering, Henan Polytechnic University, Jiaozuo, Henan, China.


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Received: July 22, 201,   Accepted: October 16, 2015,   Published:


Abstract:

Hydrogen-assisted self-ignition of propane-air mixtures in the sequential feed mode was investigated numerically in Pt/γ-Al2O3 catalytic micro-combustors. The computational results indicate that, the time taken to reach steady state, the hydrogen cut-off time, the propane ignition time and the cumulative propane emissions increased with increasing wall thermal conductivity; the self-ignition characteristics are similar to partially preheating the initial segment of the micro-combustor for low and moderate conductive walls; however, the self-ignition characteristics are close to completely heating the micro-combustor wall for high-conductivity walls. The minimum cumulative amount of hydrogen usage and minimization of startup time are discussed.


Keywords: micro-combustion; ignition characteristics; catalytic combustion; self-ignition; hydrogen-assisted ignition


Citation:

Junjie Chen et al. Hydrogen-assisted self-ignition of propane-air mixtures in catalytic micro-combustor in the sequential feed mode. J. of Advancement in Engineering and Technology V3I3 DOI: 10.15297/JAET.V3I3.10


Copyright:

© 2015 Junjie Chen. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.


      
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      Journal of Advancement in Engineering and Technology