Combined bioelectrochemical–electrical model of a microbial fuel cell | Zendy

Dídac Recio-Garrido | Zendy; Pascal Perrier | Zendy; B. Tartakovsky | Zendy

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Combined bioelectrochemical–electrical model of a microbial fuel cell

Author(s) -

Dídac Recio-Garrido,

Pascal Perrier,

B. Tartakovsky

Publication year - 2015

Publication title -

bioprocess and biosystems engineering

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.628

H-Index - 68

eISSN - 1615-7605

pISSN - 1615-7591

DOI - 10.1007/s00449-015-1510-8

Subject(s) - microbial fuel cell , nonlinear system , work (physics) , equivalent circuit , process engineering , industrial and production engineering , process (computing) , electrochemistry , control theory (sociology) , internal resistance , biological system , electrical network , voltage , power (physics) , materials science , computer science , engineering , chemistry , electricity generation , electrode , mechanical engineering , electrical engineering , control (management) , physics , quantum mechanics , artificial intelligence , battery (electricity) , biology , operating system

Several recent studies demonstrated significant charge storage in electrochemical biofilms. Aiming to evaluate the impact of charge storage on microbial fuel cell (MFC) performance, this work presents a combined bioelectrochemical-electrical (CBE) model of an MFC. In addition to charge storage, the CBE model is able to describe fast (ms) and slow (days) nonlinear dynamics of MFCs by merging mass and electron balances with equations describing an equivalent electrical circuit. Parameter estimation was performed using results of MFC operation with intermittent (pulse-width modulated) connection of the external resistance. The model was used to compare different methods of selecting external resistance during MFC operation under varying operating conditions. Owing to the relatively simple structure and fast numerical solution of the model, its application for both reactor design and real-time model-based process control applications are envisioned.

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