Effect of hydrogen addition on early flame growth of lean burn natural gas-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：
- Effect of hydrogen addition on early flame growth of lean burn natural gas-air mixtures (PDF)
- 发表刊物：
- Int J Hydrogen Energy
- 摘要：
- Effect of hydrogen addition on early flame growth of lean burn natural gas-air mixtures was investigated experimentally and numerically. The flame propagating photos of premixed combustion and direct-injection combustion was obtained by using a constant volume vessel and schlieren photographic technique. The pressure derived initial combustion durations were also obtained at different hydrogen fractions (from 0% to 40% in volumetric fraction) at overall equivalence ratio of 0.6 and 0.8, respectively. The laminar premixed methane-hydrogen-air flames were calculated with PREMIX code of CHEMKIN II program with GRI 3.0 mechanism. The results showed that the initial combustion process of lean burn natural gas-air mixtures was enhanced as hydrogen is added to natural gas in the case of both premixed combustion and direct injection combustion. This phenomenon is more obvious at leaner mixture condition near the lean limit of natural gas. The mole fractions of OH and O are increased with the increase of hydrogen fraction and the position of maximum OH and O mole fractions move closing to the unburned mixture side.
- 合写作者：
- Wang JH, Huang ZH, Tang CL, Zheng JJ
- 卷号：
- 2010, 35(13):7242-7252
- 页面范围：
- 7242-7252
- 是否译文：
- 否
- 发表时间：
- 2010-07-10