Modeling, optimization, and control of microbial electrolysis cells in a fed-batch reactor for production of renewable biohydrogen gas

Yahya, A.M. and Hussain, M.A. and Wahab, A.K.A. (2015) Modeling, optimization, and control of microbial electrolysis cells in a fed-batch reactor for production of renewable biohydrogen gas. International Journal of Energy Research, 39 (4). pp. 557-572. ISSN 0363-907X

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Official URL: http://onlinelibrary.wiley.com/doi/10.1002/er.3273...

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.

Item Type: Article
Additional Information: Cc9ce Times Cited:0 Cited References Count:49
Uncontrolled Keywords: Modeling, optimization, control, microbial electrolysis cell, biohydrogen, membrane fuel-cell, hydrogen-production, biogas production, electrochemical model, organic-matter, system, wastes, methane,
Subjects: T Technology > T Technology (General)
T Technology > TP Chemical technology
Divisions: Faculty of Engineering
Depositing User: Mr Jenal S
Date Deposited: 22 Sep 2015 00:23
Last Modified: 22 Sep 2015 00:23
URI: http://eprints.um.edu.my/id/eprint/14017

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