Characterization of laminar premixed methanol-air flames (PDF)
发布时间：2025-04-30
点击次数：
- 发布时间：
- 2025-04-30
- 论文名称：
- Characterization of laminar premixed methanol-air flames (PDF)
- 发表刊物：
- Fuel
- 摘要：
- This study focuses on the effects of initial temperature and pressure on the propagation characteristics of laminar premixed flame of methanol–air mixtures. Spherically expanding laminar premixed flames, freely propagating from spark ignition sources in initially quiescent methanol–air mixtures, are continuously recorded by a high-speed CCD at various equivalence ratios and temperatures. The flames are then analyzed to deduce
the flame speed. The stretch imposed on the spherical flame front is explored experimentally; as a consequence, the unstretched laminar burning velocities of methanol–air flames have been derived. The present measurements are compared with the experimental data reported previously, and good agreements are obtained. Combined previous results, a correlation in the form of ulZuloðTu=Tu0ÞaT ðPu=Pu0Þbp has been developed to describe the dependences of initial temperature and pressure on the burning velocities of methanol–air flames. The global activation temperatures are determined in terms of the burning mass flux. And then, the Zeldovich numbers for methanol–air flames are estimated as a function of equivalence
ratio. On the basis of the mass burning flux, an alternative correlation of laminar burning velocities has been proposed, and agreements can still be found in the comparison between this alternative forms and the power law correlation above.
- 合写作者：
- Liao SY, Jiang DM, Huang ZH
- 卷号：
- 85(10-11): 1346-1353
- 页面范围：
- 1346-1353
- 是否译文：
- 否
- 发表时间：
- 2006-10-15