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Article
Modeling, optimization, and control of microbial electrolysis cells in a fed-batch reactor for production of renewable biohydrogen gas
International Journal of Energy Research (2015)
Abstract

An integrated modeling, optimization, and control approach for the design of a microbial electrolysis cell (MEC) was studied in this paper. Initially, this study describes the improvement of the mathematical MEC model for hydrogen production from wastewater in a fed-batch reactor. The model, which was modified from an already existing model, is based on material balance with the integration of bioelectrochemical reactions describing the steady-state behavior of biomass growth, consumption of substrates, hydrogen production, and the effect of applied voltage on the performance of the MEC fed-batch reactor. Another goal of this work is to implement a suitable control strategy to optimize the production of biohydrogen gas by selecting the optimal current and applied voltage to the MEC. Various simulation tests involving multiple set-point changes, disturbance rejection, and noise effects were performed to evaluate the performance where the proposed proportional-integral-derivative control system was tuned with an adaptive gain technique and compared with the Ziegler-Nichols method. The simulation results show that optimal tuning can provide better control effect on the MEC system, where optimal H-2 gas production for the system was achieved. Copyright (c) 2014 John Wiley & Sons, Ltd. Link to Full-Text Articles : http://onlinelibrary.wiley.com/doi/10.1002/er.3273/abstract

Keywords
  • modeling,
  • optimization,
  • control,
  • microbial electrolysis cell,
  • biohydrogen,
  • membrane fuel-cell,
  • hydrogen-production,
  • biogas production,
  • electrochemical model,
  • organic-matter,
  • system,
  • wastes,
  • methane
Publication Date
March 25, 2015
Publisher Statement
Cc9ce Times Cited:0 Cited References Count:49
Citation Information
"Modeling, optimization, and control of microbial electrolysis cells in a fed-batch reactor for production of renewable biohydrogen gas" International Journal of Energy Research Vol. 39 Iss. 4 (2015)
Available at: http://works.bepress.com/facultyofengineering_universityofmalaya/224/