This study investigates peculiarities of the filtration combustion (FC) of the gaseous fuel-air mixtures in a porous
inertia media (PIM). Combustion wave velocities and temperatures were measured for hydrogen-air, propane-air and
methane-air mixtures in the PIM at different mixture filtration velocities. It is shown that the dependences of the
combustion wave velocities on the equivalence ratio are V-shaped, It was further confirmed that the FC in the PIM has
more contrasts than similarities with the normal homogeneous combustion. One of the interesting observations in the
present study, which is not common in normal homogenous combustion, is the shifting of the fuel-air equivalent ratio at
the minimum combustion wave velocity from the stoichiometric condition (ยข = 1). For a hydrogen-air mixture, the
fuel-air equivalence ratio at the minimum combustion velocity shifts from the stoichiometric condition to the rich
region, while for the propane-air and methane-air mixtures the fuel-air equivalence ratio at the minimum combustion
velocity shifts toward fuel-leaner conditions. The measured maximum porous media temperatures in the combustion
waves are found to be weakly dependent on the mixture filtration velocities. In general, the effects of the mixture
filtration velocities on the measured maximum porous media temperatures are not significant.
| Identifer | oai:union.ndltd.org:netd.ac.za/oai:union.ndltd.org:tut/oai:encore.tut.ac.za:d1000859 |
| Date | 17 August 2007 |
| Creators | Mbarawa, M, Kakutkina, NA, Korzhavin AA |
| Publisher | Journal of Mechanical Science and Technology |
| Source Sets | South African National ETD Portal |
| Language | English |
| Detected Language | English |
| Type | Text |
| Format | |
| Rights | Journal of Mechanical Science and Technology |
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