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http://dx.doi.org/10.17137/Korrae.2013.21.1.39

The Effect of Fluid Flow on Power Density in a Horizontal-flow Microbial Fuel Cell  

Lee, Chae-Young (Department of Civil Engineering, The University of Suwon)
Park, Su-Hee (Jongwoo Corporation)
Song, Young-Chae (Department of Environmental Engineering, Korea Maritime University)
Yoo, Kyu-Seon (Department of Civil and Environmental Engineering, Jeonju University)
Chung, Jae-Woo (Department of Environmental Engineering, Gyeongnam National University of Science and Technology)
Han, Sun-Kee (Department of Environmental Health, Korea National Open University)
Publication Information
Journal of the Korea Organic Resources Recycling Association / v.21, no.1, 2013 , pp. 39-44 More about this Journal
Abstract
This study evaluated the effect of fluid flow on the power density in a horizontal-flow microbial fuel cell (MFC). The maximum power densities in four types of flow induced by different channel types in the anode chamber were investigated. The fluid flow at each channel was analyzed using tracer tests. Results of polarization curves showed that the maximum power densities of case 1, 2, 3 and 4 were 95.7, 129.1, 190.9 and 114.2 mW/m2, respectively. Case 3 with a set of guide walls where flow had an S type-like shape showed the highest power density. Based on the Morrill Dispersion Index (MDI) value of case 4, microbial activity would be enhanced since the reactor allows even distribution of substrate but the overflow occurrence would not guarantee stable performance. Therefore, case 3 could be an effective reactor type for MFC because of high electricity generation and stable performance.
Keywords
Fluid flow; Power density; Horizontal-flow microbial fuel cell; Anode chamber; Morrill Dispersion Index;
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