Faculty of Engineering and Informatics, University of Bradford, Bradford BD7 1DP, United Kingdom.
Faculty of Engineering and Informatics, University of Bradford, Bradford BD7 1DP, United Kingdom.
Bioresour Technol. 2018 Oct;265:480-489. doi: 10.1016/j.biortech.2018.06.036. Epub 2018 Jun 15.
An Euler-Lagrange CFD model is applied to a full-scale, biogas-mixed anaerobic digester to improve mixing efficiency and improve overall performance. Two quantitative mixing criteria previously adopted in anaerobic digestion (viz., uniformity index and dead volume) are critically assessed for the first time. A novel qualitative method is introduced to clarify the output of the quantitative methods. The first-ever quantitative assessment of mixing quality in full-scale, biogas-mixed anaerobic digestion is then proposed, and a strategy to improve mixing, involving the combined use of concentric nozzle manifolds at the base of the digester, is evaluated.
应用欧拉-拉格朗日 CFD 模型于全尺寸沼气混合厌氧消化器，以提高混合效率并改善整体性能。首次对先前在厌氧消化中采用的两种定量混合标准（即均匀指数和死体积）进行严格评估。引入了一种新的定性方法来阐明定量方法的输出。首次对全尺寸沼气混合厌氧消化中的混合质量进行定量评估，并评估了一种改进混合的策略，包括在消化器底部使用同心喷嘴歧管。
