Influence of temperature and other system parameters on microbial fuel cell performance: Numerical and experimental investigation
Influence of temperature and other system parameters on microbial fuel cell performance: Numerical and experimental investigation
复制标题
DOI：
10.1016/j.cej.2020.124176
复制
发表时间：
2020-05-15
影响因子：
15.1
通讯作者：
Sadhukhan, Jhuma
中科院分区：
文献类型：
--
作者：
Gadkari, Siddharth;Fontmorin, Jean-Marie;Sadhukhan, Jhuma
通过耦合质量、电荷、能量平衡和生物电化学反应，建立了微生物燃料电池的二维稳态数学模型。模型参数的估计和验证，从五个空气阴极MFC在不同温度下运行的实验结果。模型分析正确预测了温度在20摄氏度到40摄氏度之间的MFC的非线性性能趋势。二维分布允许计算生物膜中的局部电流密度和反应速率，有助于正确捕获系统变量的相互依赖性并预测较高温度下功率密度的下降。通过研究电极间距和离子强度对MFC性能的影响，进一步突出了参数分析和工艺优化的模型适用性。
This study presents a steady state, two dimensional mathematical model of microbial fuel cells (MFCs) developed by coupling mass, charge and energy balance with the bioelectrochemical reactions. The model parameters are estimated and validated using experimental results obtained from five air-cathode MFCs operated at different temperatures. Model analysis correctly predicts the nonlinear performance trend of MFCs with temperatures ranging between 20 degrees C and 40 degrees C. The two dimensional distribution allows the computation of local current density and reaction rates in the biofilm, helping to correctly capture the interdependence of system variables and predict the drop in power density at higher temperatures. Model applicability for parametric analysis and process optimization is further highlighted by studying the effect of electrode spacing and ionic strength on MFC performance.