The article describes the stability of gaseous fuel combustion in gas turbine low-emission combustion chambers with the plasma-chemical assistance. The mathematical model of unsteady processes in a low-emission combustion chamber with a plasma-chemical stabilizer that takes into consideration the impact of low-temperature plasma on aerodynamics flow in a combustion chamber and the characteristics of heat release is developed. A methodology of a numerical experiment concerning the stability of gaseous fuel combustion in a combustion chamber with plasma assistance using computational fluid dynamics, which enhances the efficiency of designing and adjustment, is proposed. Practical recommendations for improvement of stability of a gas turbine combustion chamber with partially premixed lean fuel–air mixtures, working on gaseous fuels, are developed. They allow to reduce pressure fluctuations inside the flame tube by 10–35%, to decrease spectral power of static pressure in the flame tube in 1.5–2.0 times, to reduce nitrogen oxide emission up to 33.6 ppm in the exit section while retaining a carbon monoxide emission level, that corresponds modern international ecological standards.

中文翻译：

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等离子化学产物对低排放燃气轮机燃烧室过程稳定性的影响

该文章描述了在等离子体化学辅助下燃气轮机低排放燃烧室中气体燃料燃烧的稳定性。建立了具有等离子体化学稳定剂的低排放燃烧室内不稳定过程的数学模型，该模型考虑了低温等离子体对燃烧室内空气动力学流动的影响以及放热特性。提出了一种数值实验的方法，该方法涉及利用计算流体力学在具有等离子体辅助的燃烧室中进行气体燃料燃烧的稳定性，从而提高了设计和调整的效率。针对使用气态燃料的部分预混合稀燃空气混合物提高燃气轮机燃烧室稳定性的实用建议已经提出。