Study of low pressure premixed dimethyl ether/hydrogen/oxygen/argon laminar flames with photoionization mass spectrometry (PDF)
发布时间：2025-04-30
点击次数：
- 发布时间：
- 2025-04-30
- 论文名称：
- Study of low pressure premixed dimethyl ether/hydrogen/oxygen/argon laminar flames with photoionization mass spectrometry (PDF)
- 发表刊物：
- Energy & Fuels
- 摘要：
- Laminar premixed fuel rich (equivalence ratio of 1.5) dimethyl ether/hydrogen/oxygen/ argon flames with different hydrogen fractions (0%, 20%, 40%, 60%, 80%) were investigated with tunable synchrotron VUV photoionization and molecular-beam mass spectrometry. The flame temperature profile was measured. By measuring the signal intensities at different distances from the burner surface, the mole fraction profiles of major intermediates are derived. Comparison of flame temperature profiles or mole fraction profiles is made among these flames. The influences of hydrogen addition on flame temperature, mole fractions of major species and intermediates are analyzed. The results show that the flame temperature in the flame zone decreases with the increase of hydrogen addition. The mole fractions of major species and intermediates are decreased with the increase of hydrogen fraction. This might be attributed to the decrease of C/H ratio of the fuel blend by hydrogen addition. The mole fraction ratios of CO to CO2 are decreased with the increase of hydrogen fraction, and this indicates that hydrogen addition can promote the oxidation of CO and realizes complete combustion of dimethyl ether.
- 合写作者：
- Chen ZY, Wei LX, Gu XL, Huang ZH
- 卷号：
- 2010, 24(3):1628-1635
- 页面范围：
- 1628-1635
- 是否译文：
- 否
- 发表时间：
- 2010-03-18