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Numerical simulation of transient radial temperature distribution in rotating drum bioreactor for solid state fermentation

机译：旋转滚筒生物反应器瞬态径向温度分布的数值模拟，用于固态发酵

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Solid-state fermentation (SSF) has received more and more attention and been applied to produce many kinds of chemicals in recent years, especially in the field of biofuel. The major problems to overcome in large-scale application of SSF are heat accumulation and heterogeneous distribution in this complex gas-liquid-solid multiphase bioreactor (or fermentor) system. In this work, a mathematical model of a rotating drum bioreactor for solid state anaerobic fermentation was developed which consider the transient radial temperature distribution in the substrate bed. Corresponding partial differential equations were solved using the finite volume method (FVM). Validation experiments were conducted in a 50L rotating drum fermentor. Simulation results could agree well with the experimental data. From these results, it was concluded that the mathematical model developed is a powerful tool to investigate design and scale-up of anaerobic SSF fermentors.
机译：固态发酵（SSF）近年来越来越多地受到越来越多的关注，尤其是在生物燃料领域中生产多种化学品。在大规模应用SSF中克服的主要问题是在该复杂的气体 - 液体固体多相生物反应器（或发酵罐）系统中的热累积和异质分布。在这项工作中，开发了一种用于固态厌氧发酵的旋转鼓生物反应器的数学模型，其考虑基材床中的瞬态径向温度分布。使用有限体积法（FVM）解决了相应的局部微分方程。在50L旋转鼓发酵罐中进行验证实验。仿真结果可能与实验数据很好。从这些结果来看，得出的结论是，发达的数学模型是一种强大的工具，可以调查厌氧SSF发酵罐的设计和扩展。

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