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首页> 外文会议>International Conerence on Applied Energy >Development of transient mathematical models for a large-scale reheating furnace using hybrid zone-CFD methods
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Development of transient mathematical models for a large-scale reheating furnace using hybrid zone-CFD methods

机译：用杂交区 - CFD方法开发大型再加热炉的瞬态数学模型

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While providing an accurate means of simulating radiative heat transfer within a furnace, the major limitation of the classical zone method of radiation analysis has been the difficulty of incorporating furnace flow patterns within the model. This aspect is of particular importance in furnaces where the flow pattern may be highly complex due to the burner arrangement and variations in the flow pattern may be significant during transient furnace operation. This paper is concerned with the development of a hybrid modelling approach to simulate transient thermal performances of a large scale reheating furnace. In particular, this new modelling approach combines the advantages of the zone method and Computational Fluid Dynamics (CFD) in a robust manner. The hybrid model has been validated using comprehensive experimental data collected during an instrumented bloom trial period that includes a long production delay. The results suggest that the model predictions are in good agreement with actual measurements, and that the model is able to respond correctly with respect to the production delay. Furthermore, the hybrid approach has a relatively modest computing demand so that it may be used efficiently for off-line (or near real-time) simulations to investigate problems related to furnace optimisation and control.
机译：虽然在炉内提供准确的模拟辐射传热的准确方法，但是辐射分析的经典区域方法的主要限制是难以在模型内结合炉流模式。这方面特别重要地在熔炉中，由于燃烧器布置，流动图案可以是高度复杂的，并且在瞬态炉操作期间流动模式的变化可能是显着的。本文涉及开发混合建模方法以模拟大规模再加热炉的瞬态热性能。特别地，这种新的建模方法以稳健的方式结合了区域方法和计算流体动力学（CFD）的优点。使用在包括长生产延迟的植物盛开的试验期内收集的综合实验数据验证了混合模型。结果表明，模型预测与实际测量很好，该模型能够在生产延迟方面正确响应。此外，混合方法具有相对适度的计算需求，使得它可以有效地用于离线（或接近实时）模拟，以研究与炉优化和控制相关的问题。

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