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A study of flame and flow structures and their effect on emission properties in a bidirectional vortex pulverized peat combustor

机译：火焰和流动结构的研究及其对双向涡旋煤泥煤燃烧器中排放特性的影响

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The paper reports on experimental and numerical studies of flame and flow structures in a bidirectional vortex pulverized peat combustor. This study seeks to develop a new method of burning solid pulverized fuel in a bidirectional swirling flow suggested in prior literature. To this end, reactive and non-reactive modes at different input parameters have been examined. Special attention was given to the effect of flame and flow on pollutant emissions, e.g., CO and NOx. It is numerically and experimentally shown that the bidirectional combustor facilitates environmentally friendly and stable combustion of solid pulverized fuel in a wide range of boundary conditions. However, in terms of flame and flow structures, the most effective operating modes have been observed at n = 5.0. Moreover, a similarity of the reaction fronts and velocity profiles is observed within the same range of values of n. Variations in thermal power cause only quantitative changes in parameter distributions, whereas qualitative characteristics of these distributions remain unchanged.
机译：双向涡旋煤泥燃烧器中火焰和流动结构的实验和数值研究报告。该研究旨在在现有文献中提出的双向旋流流动中开发一种燃烧固体粉碎燃料的新方法。为此，已经检查了不同输入参数的反应性和非反应模式。特别注意火焰和流动对污染物排放的影响，例如CO和NOx。在数字和实验上表明，双向燃烧器在广泛的边界条件下便于固体粉碎燃料的环境友好和稳定的燃烧。然而，就火焰和流动结构而言，在N＆GT的情况下已经观察到最有效的操作模式。= 5.0。此外，在相同的N值范围内观察到反应前和速度分布的相似性。热功率的变化导致参数分布的定量变化，而这些分布的定性特性保持不变。

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