摘要
采用商用CFD软件,通过数值模拟和正交实验分析了蜂窝陶瓷的结构参数及各工况条件对换热性能和压力损失的影响,优化了工况参数。数值模拟结果为:进入稳定工作期后,加热期温度效率为94.6%,冷却期温度效率为93.7%,压力损失为457.7Pa。在此基础上,设计了梭式窑高温空气燃烧(HTAC)系统,构建实体模型进行实验,研究余热回收系统的温度效率及烟气在蜂窝陶瓷内压力损失。研究结果表明,加热期与冷却期的温度效率分别为:92.0%,93.2%,测量热烟气和预热空气的压力损失分别为126.3,107.8Pa。
The effect of structural factor of honeycomb ceramic and working conditions to heat exchange capabilities and pressure lose were analyzed by numerical simulation orthogonal experiment in this paper, and an optimal experimental parameter program was got. Simulating the program, the results show that in the stable working process the temperature efficiency of heating process and cooling process is 94.6% and 93.7%, the pressure lose is 457.7 Pa. Based on these, system of HTAC for shuttle kiln was designed, and examined in practice. The temperature efficiency and heat transfer coefficient of the honeycomb ceramic regenerator were reviewed. The experimental results show that the temperature efficiency of heating process and cooling process is 92.0% and 93.2%, pressure loss of honeycomb ceramic is 126.3 Pa, 107.8 Pa.
出处
《工业加热》
CAS
2009年第5期5-9,共5页
Industrial Heating
基金
广东省财政支持技术改造项目(JG2B20070724)
关键词
梭式窑
余热回收
高温空气燃烧
蜂窝陶瓷蓄热体
数值模拟
shuttle kiln
waste heat recovery
high temperature air combustion （HTAC）
honeycomb ceramic regenerator
numerical simulation
