二次注氧微平面燃烧室氨氧预混燃烧NOx排放及热性能研究

IF 9 1区工程技术 Q1 ENERGY & FUELS

Energy Pub Date : 2025-05-12 DOI:10.1016/j.energy.2025.136460

Xiong Liu , Wei Zuo , Qingqing Li , Kun Zhou , Yuhan Huang , Yawei Li

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引用次数: 0

摘要

为了提高微燃烧室的热性能和降低NOx排放，本文提出了一种平面二次喷氧燃烧室。微平面燃烧室二次注氧降低了NO排放，外壁温度更高、更均匀。这是由于二次注氧提高了微平面燃烧室下游火焰温度，加速了NO向NO2的转化，增强了混合气与燃烧室壁面之间的换热。然后，研究了二次氧注入比例和二次氧注入位置的影响。结果表明，提高微平面燃烧室中部二次氧注入比例和二次氧注入位置有利于减少微平面燃烧室NO排放，提高微平面燃烧室热性能，提高微热光伏系统总能量输出和总能量转换效率。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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NOx emission and thermal performance studies on ammonia/oxygen premixed combustion in micro planar combustor with a secondary oxygen injection

In order to enhance thermal performance and reduce NO_x emissions of micro combustor, in this work, a planar combustor with a secondary oxygen injection is proposed. With a secondary oxygen injection, NO emission of micro planar combustor is decreased and outer wall temperature is higher and more uniform. This is due to that the flame temperature at the downstream of micro planar combustor is increased by the secondary oxygen injection, which accelerates the transformation from NO to NO₂ and enhances the heat transfer between gas mixture and combustor wall. Then, effects of secondary oxygen injection ratio and secondary oxygen injection position are investigated. Results show that a higher secondary oxygen injection ratio and secondary oxygen injection position at middle of micro planar combustor is good for reducing NO emission and improving thermal performance of micro planar combustor, as well as the total energy output and total energy conversion efficiency of micro-thermophotovoltaic system can be improved.

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来源期刊

Energy 工程技术-能源与燃料

CiteScore

15.30

自引率

14.40%

发文量

审稿时长

14.2 weeks

期刊介绍： Energy is a multidisciplinary, international journal that publishes research and analysis in the field of energy engineering. Our aim is to become a leading peer-reviewed platform and a trusted source of information for energy-related topics. The journal covers a range of areas including mechanical engineering, thermal sciences, and energy analysis. We are particularly interested in research on energy modelling, prediction, integrated energy systems, planning, and management. Additionally, we welcome papers on energy conservation, efficiency, biomass and bioenergy, renewable energy, electricity supply and demand, energy storage, buildings, and economic and policy issues. These topics should align with our broader multidisciplinary focus.