蓄热体与换热时间的数值模拟分析  

Numerical Simulation Analysis of Heat Accumulator and Heat Transfer Time

作　　者：邵和平 汪建新[1] 张庆宇 吴启明[2] 王佳微 SHAO He-ping;WANG Jian-xin;ZHANG Qing-yu;WU Qi-ming;WANG Jia-wei(School of Mechanical Engineering,Inner Mongolia University of Science and Technology,Baotou 014010,China;CERI Phoenix Industrial Furnance Co.,Ltd.,Beijing 100176,China)

机构地区：[1]内蒙古科技大学机械工程学院,包头014010 [2]北京京诚凤凰工业炉工程技术有限公司,北京100176

出　　处：《科学技术与工程》2021年第4期1382-1387,共6页Science Technology and Engineering

摘　　要：运用ANSYS中的Fluent模块功能,从流体初始速度、蓄热体结构数值以及换向周期等几个因素对其换热性能的影响进行了数值模拟,可得到蓄热室内部和面壁在蓄热和冷却期间的温度云图。结果表明:蓄热体换热过程中温度随时间变化的规律;运用数值分析的方法对蓄热室内部从初始状态到稳态工作过程进行了模拟,得到并分析了在工作运行中烟气和空气出口温度的改变状况;分析稳态时的加热和冷却末期时间段蓄热体内部温度情况。研究结果为进一步探究换热机制提供了一定的科学依据。Using the function of the Fluent module in ANSYS,the effects of several factors such as the initial velocity of the fluid,the value of the heat storage structure and the commutation period on its heat transfer performance were numerically simulated.Temperature cloud of the inner space and the wall of the heat storage chamber during heat storing and cooling was obtained.The research concluded the law of temperature change with time during the heat storage process of heat storage body.The numerical analysis method was used to simulate the working process from the initial state to the steady state inside the heat storage chamber,and the working flue gas and air outlet temperature changes during operation were discussed.The internal temperature of the regenerator during the final period of heating and cooling at steady state was analyzed.The results can lay a good foundation in the following research on heat exchange mechanism.

关 键 词：蓄热体 高温空气燃烧 换热特性 数值模拟 

分 类 号：TK124[动力工程及工程热物理—工程热物理]