结合计算流体动力学和动力学模型,使用一个用于全尺寸农业消化机的隔间模型
Tatiana Segura1, Liliane Megue Kamkeng2, Benjamin Le Creurer3
1INRAE, Univ Montpellier, LBE, 102 Avenue des Etangs, F-11100, Narbonne, France.
Journal of environmental management
|February 14, 2026
概括
一个新的分区模型 (CM) 有效地模拟了全面的无氧消化,将水力动力学和生物动力学联系起来. 它在入口附近显示出高活性,这对于优化甲 (CH4) 生产和消化器健康至关重要.
科学领域:
- 环境工程 环境工程
- 生物化学工程 生物化学工程
- 可再生能源系统可再生能源系统
背景情况:
- 无氧消化对于减缓气候变化至关重要,但缺乏全面的水力动力学和生动力学相互作用研究.
- 了解这些相互作用对于优化生物气生产和消化器效率至关重要.
研究的目的:
- 开发和验证一个区块模型 (CM) 适用于全面的农业无氧消化器.
- 研究水力动力学和生物动力学之间的相互作用,包括机械动的影响.
- 为消化器建模提供计算效率高的计算流体动力学 (CFD) 替代方案.
主要方法:
- 通过将一个全尺寸的消化器分成基于CFD速度场的隔间,开发了一个分区模型 (CM).
- 通过将居住时间分布 (RTD) 与CFD模拟进行比较,验证了CM的水力动力学组成部分.
- 综合性厌氧消化模型号. 1 (ADM1) 进入CM以模拟时间和空间上的生动力学过程.
主要成果:
- 该CM准确预测了RTD,为水力动力学分析提供了CFD更快的替代方案.
- 最高的生物活性 (58.9%的CH4产量) 发生在入口附近的26.8%的反应器体积中,这表明酸化风险很高.
- 模拟显示,没有机械混合的系统产生更多的甲 (CH4),但与激动系统相比,具有更高的酸化风险.
结论:
- 开发的CM是一个强大的,计算效率高的工具,用于分析全尺寸无氧消化器.
- 入口区域对于消化器的性能至关重要,需要仔细监测以防止酸化.
- 机械动对RTD和CH4生产都有影响,在收益率和运行稳定性之间进行权衡.
关键词:
ADM1 ADM1 ADM1 ADM1 ADM1 ADM1 ADM1 ADM1 ADM1 ADM1 ADM2 ADM3 ADM4 ADM5 ADM6 ADM7 ADM8无氧消化消化无氧消化在 CFD 交易中,我们可以看到 CFD.分区 分区 分区.流动 流动 流动 流动混合 混合 混合 混合更多相关视频
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