Combustion of gaseous and liquid fuels in meso-scale tubes with wire mesh

Proceedings of the Combustion Institute, Volume 34, Issue 2, 2013, Pages 3387–3394
Combustion of gaseous and liquid fuels in meso-scale tubes with wire mesh
Masato Mikami (a), Yoshiyuki Maeda (a), Keiichiro Matsui (a), Takehiko Seo (a), Lilis Yuliati (b)
a Department of Mechanical Engineering, Yamaguchi University, Japan
b Department of Mechanical Engineering, Brawijaya University, Indonesia
Abstract
Reports results of an investigation of the combustion of gaseous and liquid fuel in meso-scale tubes with wire mesh. For C3H8/air mixtures, the flame can be stabilized near the mesh inside the tube without external heating even for smaller tube than the classical quenching diameter by heat recirculation from the burned gas to the unburned gas through heat conduction in the wall and mesh.
The mesh enhances heat transfer from the heated wall to the unburned gas. For tubes larger than the classical quenching diameter, the flame can be stabilized inside the tube even outside the flashback limit by heat recirculation. Within a specific range of flow velocity, the flame propagates at relatively high speed and extinction occurs near the mesh, but the flame can be stabilized near the mesh if the condition is gradually shifted from another condition with a stabilized flame. Consequently, the mesh can act as a combustion inhibitor or an enhancer.
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