Zhang Ouyuan, Yuan Lin, Teng Xurong, Zhao Fangfang, Fan Xing, Tao Changyuan, Liu Renlong
College of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 400044, China.
State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing, 400044, China.
Sci Rep. 2025 Apr 1;15(1):11037. doi: 10.1038/s41598-025-87261-8.
This study focuses on a 200 t/d glass fiber furnace with an electric boosting system using oxygen and air as the oxidizers. A furnace model, including the combustion space and glass melt, was developed using CFD numerical simulation techniques. Temperature fields, velocity fields, and glass particle trajectories were used to compare the operating conditions of air-fuel and oxy-fuel combustion, analyzing the impact of the oxy-fuel system on the glass furnace. Additionally, the residence time distribution, melting factor, and mixing factor were used as quality indicators to assess the performance and production quality of the glass furnace. The results demonstrated that in the oxy-fuel electric boosting process, the flame-covered zone reached higher temperatures, the high-temperature region was larger, and the maximum temperature difference was about 378.5 K, which improved the heat transfer efficiency to the glass melt. Additionally, the oxy-fuel process promoted glass flow, and enhanced the mixing of the glass melt, although the residence time of the fastest-moving particles was only 8.0 h, which might have an inferior melting quality. These research findings can provide valuable insights for the engineering optimization of the oxy-fuel electric boosting process.
本研究聚焦于一座日产量200吨的玻璃纤维熔炉，该熔炉配备了使用氧气和空气作为氧化剂的电助熔系统。利用计算流体力学（CFD）数值模拟技术建立了一个包括燃烧空间和玻璃熔体的熔炉模型。通过温度场、速度场和玻璃颗粒轨迹来比较空气燃料燃烧和氧燃料燃烧的运行条件，分析氧燃料系统对玻璃熔炉的影响。此外，停留时间分布、熔化因子和混合因子被用作质量指标，以评估玻璃熔炉的性能和生产质量。结果表明，在氧燃料电助熔过程中，火焰覆盖区域达到更高的温度，高温区域更大，最大温差约为378.5K，这提高了向玻璃熔体的传热效率。此外，氧燃料过程促进了玻璃流动，并增强了玻璃熔体的混合，尽管移动最快的颗粒的停留时间仅为8.0小时，这可能导致熔化质量较差。这些研究结果可为氧燃料电助熔过程的工程优化提供有价值的见解。
