STUDY OF FORCED ACOUSTIC OSCILLATIONS INFLUENCE ON METHANE OXIDATION PROCESS IN OXYGEN-CONTAINING FLOW OF HYDROGEN COMBUSTION PRODUCTS

IF 1.7 4区工程技术 Q3 THERMODYNAMICS Heat Transfer Research Pub Date : 2023-12-01 DOI:10.1615/heattransres.2023051433

Anastasiya Krikunova, Konstantin Arefyev, Ilya Grishin, Maxim Abramov, Vladislav Ligostaev, Evgeniy Slivinskii, Vitaliy Krivets

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Abstract

The article presents the results of a computational and experimental study of the acoustic intensification of methane oxidation processes in high-enthalpy oxygen-containing flow of hydrogen combustion products. The studies were conducted by using tube with constant cross-section and finite length. Initial specific enthalpy of the oxygen-containing flow is varied from 1600 kJ/kg to 2400 kJ/kg. The patterns of total enthalpy influence of the oxygen-containing flow of hydrogen combustion products and acoustic effect on the efficiency (completeness of chemical reactions) of methane oxidation were obtained. The dependence of acoustic frequency influence on completeness coefficient of physics-chemical processes has been found. The values of fuel equivalence ratio were determined for various total enthalpies of the oxygen-containing flow, corresponding to diffusion and kinetic regimes of methane oxidation. Stability of methane oxidation process and influence of forced acoustic oscillations on the spectral characteristics of static pressure pulsations in the flow were analyzed.

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研究强迫声波振荡对含氢燃烧产物氧流中甲烷氧化过程的影响

文章介绍了在高焓含氧氢燃烧产物流中甲烷氧化过程声学强化的计算和实验研究结果。研究使用了横截面恒定且长度有限的管道。含氧流的初始比热从 1600 kJ/kg 到 2400 kJ/kg 不等。研究得出了含氧气流对氢燃烧产物的总焓影响以及声波对甲烷氧化效率（化学反应完整性）的影响模式。还发现了声频对物理化学过程完整性系数的影响。根据甲烷氧化的扩散和动力学状态，确定了不同含氧流总焓下的燃料等效比值。分析了甲烷氧化过程的稳定性以及强迫声波振荡对流动中静压脉动频谱特征的影响。

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来源期刊

Heat Transfer Research 工程技术-热力学

CiteScore

3.10

自引率

23.50%

发文量

102

审稿时长

13.2 months

期刊介绍： Heat Transfer Research (ISSN1064-2285) presents archived theoretical, applied, and experimental papers selected globally. Selected papers from technical conference proceedings and academic laboratory reports are also published. Papers are selected and reviewed by a group of expert associate editors, guided by a distinguished advisory board, and represent the best of current work in the field. Heat Transfer Research is published under an exclusive license to Begell House, Inc., in full compliance with the International Copyright Convention. Subjects covered in Heat Transfer Research encompass the entire field of heat transfer and relevant areas of fluid dynamics, including conduction, convection and radiation, phase change phenomena including boiling and solidification, heat exchanger design and testing, heat transfer in nuclear reactors, mass transfer, geothermal heat recovery, multi-scale heat transfer, heat and mass transfer in alternative energy systems, and thermophysical properties of materials.