Energy conservation and emission reduction are critical global concerns, with infrared gas stoves recognized for their superior thermal efficiency and low emissions. However, research on infrared gas stoves with vertical ejectors, particularly those designed for use in horizontally constrained spaces, remains sparse. To bridge this gap, an experimental system is constructed to investigate the effects of perforated plate height, nozzle exit position (NXP), and heating height on stove performance. The experimental results reveal that gas uniformity is significantly influenced by the height of the perforated plate, while NXP has a lesser impact. The optimal height of the perforated plate is 12 mm, and the recommended value for NXP is −4 mm. With the heating height increasing from 15.0 mm to 36.5 mm, the thermal efficiency of the infrared gas stove decreases from 70.2 % to 59.3 %. The concentration of carbon monoxide in the flue gas initially declines sharply then gradually increases with the increase of heating height. Meanwhile, the concentration of nitrogen oxide exhibits slight fluctuations, with a mere 2 ppm difference between maximum and minimum values. Based on the results, a heating height of 19.3 mm is recommended. This study provides guidance for optimizing domestic gas stoves.

中文翻译：

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立式喷射红外燃气灶性能分析


节能减排是全球关注的重要问题，红外线燃气灶以其卓越的热效率和低排放而受到认可。然而，对带有垂直喷射器的红外燃气灶的研究，特别是那些设计用于水平受限空间的燃气灶，仍然很少。为了弥补这一差距，构建了一个实验系统来研究穿孔板高度、喷嘴出口位置 (NXP) 和加热高度对炉子性能的影响。实验结果表明，气体均匀性受穿孔板高度的影响显着，而NXP影响较小。穿孔板的最佳高度为12毫米，NXP的推荐值为-4毫米。随着加热高度从15.0毫米增加到36.5毫米，红外线燃气灶的热效率从70.2%下降到59.3%。随着加热高度的增加，烟气中一氧化碳浓度先急剧下降，后逐渐升高。同时，氮氧化物浓度略有波动，最大值和最小值之间仅相差2 ppm。根据结果​​，建议加热高度为 19.3 mm。本研究为优化家用燃气灶提供指导。