Thermal and chemical effects of water addition on laminar burning velocity of syngas (PDF)
发布时间：2025-04-30
点击次数：
- 发布时间：
- 2025-04-30
- 论文名称：
- Thermal and chemical effects of water addition on laminar burning velocity of syngas (PDF)
- 发表刊物：
- Energy & Fuels
- 摘要：
- An experimental and numerical study on thermal and chemical effects of water vapor addition on the laminar burning velocities of syngas was conducted using a constant volume chamber and CHEMKIN package. The experimental conditions in the present study for CO/H2/air/H2O mixtures with hydrogen fraction in syngas are from 5% to 50%, initial temperature of 373 K, pressures of 0.1MPa and 0.5MPa and water dilution ratios from 0% to 30%. The measured laminar burning velocity data were compared with simulations with three mechanisms-mechanisms of Davis et al, Li et al and San Diego. The experimental data show a reasonable agreement with the calculated values at low and high pressures when H2 content of the fuel is low. However, when H2/CO ratio in the fuel is higher (75/25 and 95/05), all of three mechanisms over-predicated the laminar burning velocity for fuel-rich mixtures. Sensitivity analysis is performed to identify the possible sources of discrepancy between the experimental data and calculated ones. Furthermore, chemical effects of H2O on the laminar burning velocities at various CO/H2 ratios when water is added into the mixtures were studied. For syngas with CO/H2 ratio of 50/50, water has a weak inhibiting effect on the chemical reaction of the mixtures. For the higher CO/H2 ratios, water addition accelerates the chemical reaction and this positive effect becomes more remarkable for the syngas with the increased CO/H2 ratio. Different trends were explained using the consumption path analysis.
- 合写作者：
- Xie YL, Wang JH, Xu N, Yu SB, Huang ZH
- 卷号：
- 2014, 28(5): 3391-3398
- 页面范围：
- 3391-3398
- 是否译文：
- 否
- 发表时间：
- 2014-05-14