Global Sensitivity Analysis of a Microbial Fuel Cell Model

被引:2
|
作者
Yin, Yankai [1 ]
Fu, Chengcai [2 ]
Ma, Fengying [1 ]
机构
[1] Qilu Univ Technol, Sch Elect Engn & Automat, Jinan 250100, Shandong, Peoples R China
[2] China Univ Min & Technol, Sch Mech Elect & Informat Engn, Beijing 100083, Peoples R China
来源
基金
中国国家自然科学基金;
关键词
global sensitivity; microbial fuel cell; variance-based method; electrochemical model; ELECTRICITY-GENERATION; UNCERTAINTY; SIMULATION; BIOENERGY; FRAMEWORK;
D O I
10.20964/2019.11.55
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
The global sensitivity method based on variance was applied to the microbial fuel cell (MFC) field for the first time here. The purpose of this study was to expound how the global sensitivity method can be used in the mathematical model of MFC and to visualize the sensitivity index of eight key parameters, such as the flow rate of the fuel feed, with respect to the MFC power performance. This algorithm can not only clarify the influence of uncertain parameters on power density, but also explain the influence of the interaction of uncertain parameters on MFC power density. The result shows that the cathodic charge transfer coefficient, acetate concentration in the influent of the anode chamber, forward rate constant of anode reaction under standard conditions, half velocity rate constant for acetate, charge transfer coefficient of the anode, forward rate constant of the cathode reaction under standard conditions and flow rate of the fuel feed to the anode are sensitive parameters that affect the power density of MFC; furthermore, the cathodic charge transfer coefficient is the most influential. Additionally, it was found that the electrical conductivity of the aqueous solution in MFC is the least sensitive parameter. The research achievements in this paper can be used in model optimization, parameter analysis or model simplification.
引用
收藏
页码:10592 / 10606
页数:15
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