Experimental study on combustion characteristics of N2 diluted diethyl ether-air mixtures (PDF)
发布时间：2025-04-30
点击次数：
- 发布时间：
- 2025-04-30
- 论文名称：
- Experimental study on combustion characteristics of N2 diluted diethyl ether-air mixtures (PDF)
- 发表刊物：
- Energy & Fuels
- 摘要：
- Combustion characteristics of diethyl ether-air-N2 diluent are studied at different initial temperatures, equivalence ratios and dilution ratios by using outwardly expanding spherically flame and high-speed schlieren photography system. The effects of these parameters on laminar burning velocity, Markstein length and Zeldovich number are analyzed. The results show that laminar burning velocity is increased with the increase of initial temperature and is decreased with the increase of dilution ratio. Maximum value of laminar burning velocity is presented at the equivalence ratio of 1.0. Markstein length is decreased with the increase of initial temperature and equivalence ratio. Except for equivalence ratio of 1.2, Markstein length is increased with the increase of dilution ratio, indicating that the increase of initial temperature and equivalence ratio enhances the diffusional-thermal instability of the flame front, but the increase of dilution ratio reduces the diffusional-thermal instability. Density ratio is decreased and flame thickness is increased with the increase of dilution ratio, indicating that the hydrodynamic instability is suppressed. Zeldovich number is increased with the increase of dilution ratio and is decreased with the increase of initial temperature. Zeldovich number gives the lowest value at the equivalence ratio of 1.0 where adiabatic temperature gives the maximum value. A formula of laminar flame velocity is correlated with initial conditions based on the experimental data.
- 合写作者：
- Zhang N, Di YG, Huang ZH, Zheng B, Zhang ZY
- 卷号：
- 2009, 23(12):5798-5805
- 页面范围：
- 5798-5805
- 是否译文：
- 否
- 发表时间：
- 2009-12-17