Abstract
Five different size of orifice were applied in a constant volume combustion chamber for evaluating the effects of torch-ignition on combustion. The initial flame development and flame propagation were analyzed by the mass burned fraction and combustion enhancement rate. The combustion pressures were measured to calculate the mass burned fractions and the combustion enhancement rates. In addition,the flame propagations were visualized by the shadowgraph method for the qualitative comparison. The result showed that the combustion pressure and mass burned fraction were increased when using the torchignition device. The combustion enhancement rates of torch-ignition cases were improved in comparison with conventional spark ignition. Finally, the visualization results showed that the torch-ignition induced faster burn than conventional spark ignition due to the earlier transition to turbulent flame and larger flame surface, during the initial stage.
| Translated title of the contribution | A Study on Combustion Characteristics of Methane Fuel according to Torch Nozzle Diameter in a Constant Volume Combustion Chamber |
|---|---|
| Original language | Korean |
| Pages (from-to) | 19-24 |
| Number of pages | 6 |
| Journal | 한국가시화정보학회지 |
| Volume | 8 |
| Issue number | 1 |
| DOIs | |
| State | Published - Mar 2010 |