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Combustion of Hydrogen-enriched Methane in a Lean Premixed Swirl Burner
| Content Provider | Semantic Scholar |
|---|---|
| Author | Schefer, Robert W. |
| Copyright Year | 2001 |
| Abstract | The stability characteristics of a premixed, swirl-stabilized flame were studied to determine the effects of hydrogen addition on flame stability under fuel-lean conditions. The burner configuration consisted of a centerbody with an annular, premixed methane/air jet. Swirl was introduced to the flow using 45-degree swirl vanes. The combustion occurred within an aircooled quartz chamber at atmospheric pressure. The results, using methane/hydrogen fuel mixtures, showed that the addition of up to 41% hydrogen significantly extended the lean burning limit. Planar Laser-Induced Fluorescence (PLIF) measurements of the OH radical were applied to study the behavior of the OH mole fraction near the lean stability limit. The results showed that as the lean stability limit was approached the overall OH mole fraction decreased, the flame width decreased and length increased, and the high OH region took on a more intermittent, shredded appearance. For operating conditions near the lean stability limit, the addition of a moderate amount of hydrogen to the methane/air mixture resulted in a significant increase in the OH concentration and a more robust appearing flame. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | https://www.eecbg.energy.gov/hydrogenandfuelcells/pdfs/30535bg.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
