Experimental and Modeling Study on Ignition Delay Times of Dimethoxy Methane/n-Heptane Blends (PDF)
发布时间：2025-04-30
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- 发布时间：
- 2025-04-30
- 论文名称：
- Experimental and Modeling Study on Ignition Delay Times of Dimethoxy Methane/n-Heptane Blends (PDF)
- 发表刊物：
- Fuel
- 摘要：
- Ignition delay times of dimethoxy methane (DMM), n-heptane and DMM/n-heptane mixtures were measured behind reflected shock waves. The experiments were performed at the temperature ranges of 1100–1600 K, at pressures of 2 and 10 atm and equivalence ratios of 0.5, 1.0 and 2.0. A chemical kinetic model for DMM/n-heptane blends was built and validated with the experimental data. The calculations well agreed with the measurements for pure fuel and binary fuels. Based on the experimental and calculated results, effects of pressure, equivalence ratio and DMM blending ratio on ignition delay times were analyzed. Through sensitivity analysis, the most important reactions were found and then the effect of equivalence ratio on ignition delay times was interpreted. The ignition delay times of DMM/n-heptane blends decreased with the addition of DMM. Kinetic analysis revealed that the concentration of radical pool increased with the increase of DMM addition, resulting in an enhancement effect on the chemical reactivity.
- 合写作者：
- Hu EJ, Gao ZH, Liu Y, Yin GY, Huang ZH
- 卷号：
- 2017, 189: 350-357
- 页面范围：
- 350-357
- 是否译文：
- 否
- 发表时间：
- 2016-12-31