Modelling and simulation of two-chamber microbial fuel cell

Title
Modelling and simulation of two-chamber microbial fuel cell
Authors
Yingzhi ZengYeng Fung Choo김병홍Ping Wu
Keywords
Microbial fuel cell; Model; Parameter estimation; Simulation
Issue Date
2010-01
Publisher
Journal of power sources
Citation
VOL 195, NO 1, 79-89
Abstract
Microbial fuel cells (MFCs) offer great promise for simultaneous treatment of wastewater and energy recovery. While past research has been based extensively on experimental studies, modelling and simulation remains scarce. A typical MFC shares many similarities with chemical fuel cells such as direct ascorbic acid fuel cells and direct methanol fuel cells. Therefore, an attempt is made to develop a MFC model similar to that for chemical fuel cells. By integrating biochemical reactions, Butler–Volmer expressions and mass/charge balances, a MFC model based on a two-chamber configuration is developed that simulates both steady and dynamic behaviour of a MFC, including voltage, power density, fuel concentration, and the influence of various parameters on power generation. Results show that the cathodic reaction is the most significant limiting factor of MFC performance. Periodic changes in the flow rate of fuel result in a boost of power output; this offers further insight into MFC behaviour. In addition to a MFC fuelled by acetate, the present method is also successfully extended to using artificial wastewater (solution of glucose and glutamic acid) as fuel. Since the proposed modelling method is easy to implement, it can serve as a framework for modelling other types of MFC and thereby will facilitate the development and scale-up of more efficient MFCs.
URI
http://pubs.kist.re.kr/handle/201004/39406
ISSN
0378-7753
Appears in Collections:
KIST Publication > Article
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