Dynamic modeling of a microbial fuel cell considering anodic electron flow and electrical charge storage

Jae Do Park, Timberley M. Roane, Zhiyong Jason Ren, Muhannad Alaraj

Research output: Contribution to journalArticlepeer-review

18 Scopus citations


To describe the anodic electron flow and electric charge storage behavior of an MFC system from an electrical perspective, a dynamic model based on a novel electrical equivalent circuit is developed. Conventional equivalent circuits typically have series impedances to model the system from the standpoint of terminal quantities: output voltage and current. However, the conventional approaches do not properly explain internal anodic electron flow and double-layer charge storage characteristics of MFCs. The proposed model uses an equivalent capacitance in parallel and series resistances to accurately model and characterize the anodic electron flow, electrical charge storage, and the dynamic characteristics of both output voltage and current. Two straightforward test methods are proposed to determine the equivalent circuit parameters. Experimental results showed the validity of proposed MFC model.

Original languageEnglish (US)
Pages (from-to)507-514
Number of pages8
JournalApplied Energy
StatePublished - 2017
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering
  • General Energy
  • Management, Monitoring, Policy and Law
  • Building and Construction
  • Renewable Energy, Sustainability and the Environment


  • Anodic current
  • Capacitive storage
  • Equivalent circuit
  • Microbial fuel cell
  • Modeling


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