Experimental and modeling study on ignition delay times of DME/n-butane blends at pressure of 2.0 MPa (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 DME/n-butane blends at pressure of 2.0 MPa (PDF)
- 发表刊物：
- Energy & Fuels
- 摘要：
- In this study, the ignition delay times of DME/n-C4H10 fuel blends, neat DME, and neat n-C4H10 diluted with argon were measured behind reflected shock waves. The experiments were performed in the temperature range of 1100 – 1600 K, at pressure of 2.0 MPa and equivalence ratios from 0.5 to 2.0. A latest kinetic mechanism NUIG Aramco Mech 1.3 was validated against the measured ignition data and was used to conduct the chemical kinetic analysis. Results showed that different equivalence ratio-dependent behaviors were exhibited at different temperature regimes for the DME, the n-C4H10, and their blend. The ignition delay time of neat n-C4H10 was increased with an increase in equivalence ratio. Strong inhibiting trend was exhibited at high temperature. For the neat DME, however, an opposite influencing tendency from equivalence ratio was presented compared to that on n-C4H10. Ignition promotion becomes significantly at relative-low temperature. 50%DME/50%n-C4H10 blend show a combined behavior of both n-butane and DME. Fuel reaction flux analysis, sensitive analysis and mole fraction analysis were conducted for the understanding of the interaction between the ignition chemistries of DME and n-C4H10 at pressure of 2.0 MPa.
- 合写作者：
- Jiang X, Zhang YJ, Man XJ, Pan L, Huang ZH
- 卷号：
- 2014, 28(3): 2189-2198
- 页面范围：
- 2189-2198
- 是否译文：
- 否
- 发表时间：
- 2014-03-20