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首页> 外文期刊>Journal of Thermal Science and Engineering Applications: Transactions of the ASME >Study of the Heat Transfer of a Large-Scale Tunnel Furnace Based on Numerical Modeling
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Study of the Heat Transfer of a Large-Scale Tunnel Furnace Based on Numerical Modeling

机译：基于数值模拟的大型隧道炉传热研究

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摘要

The aim of this work is to perform a thermal analysis of the operational conditions of a large-scale roller conveyor furnace in a ceramic factory. The entire furnace was divided into three subzones according to the combustion conditions, and the temperature and gas (CO2, H2O vapor, and O-2) distributions of each subzone were evaluated. The computational fluid dynamics (CFD) approach was employed to simulate the flow, temperature profile, and heat transfer. The realizable k-epsilon model was applied for turbulence simulation of the fluid flow coming from the burners. The discrete ordinates method (DOM) and weighted sum of gray gases (WSGG) model were used for simulation of the radiative heat transfer of the furnace. The high accuracy of the simulation methods was validated with the temperature data of the furnace measured by an infrared thermal camera. From the comparisons between the furnace's operating conditions and the numerical simulations, it was concluded that the simulation methods yielded successful results, and relative deviations of up to 22% were observed in the side wall.
机译：这项工作的目的是在陶瓷厂进行大型滚筒输送机炉的运行条件进行热分析。根据燃烧条件将整个炉子分成三个子区，评价每种子中的温度和气体（CO 2，H 2 O蒸气和O-2）分布。使用计算流体动力学（CFD）方法来模拟流动，温度曲线和传热。可实现的K-EPSILON模型应用于来自燃烧器的流体流动的湍流模拟。用于模拟炉子的辐射热传递的离散坐标方法（DOM）和加权和的灰气体模型。使用红外热相机测量的炉的温度数据验证了仿真方法的高精度。从炉子的操作条件和数值模拟之间的比较来，得出结论，模拟方法产生了成功的结果，在侧壁中观察到高达22％的相对偏差。

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