Wang, Chin-Tsan and Chen, Yan-Ming and Tang, Raymond Chong Ong and Garg, Akhil and Ong, Hwai-Chyuan and Yang, Yung-Chin (2020) Dominated flow parameters applied in a recirculation microbial fuel cell. PROCESS BIOCHEMISTRY, 99. pp. 236-245. ISSN 13595113, DOI https://doi.org/10.1016/j.procbio.2020.09.014.
Full text not available from this repository.Abstract
Scaling up of microbial fuel cells is a challenge for practical applications in wastewater treatment. In addition, the flow control is an important aspect for the electrochemical reactions occurring at the electrodes are influenced by fluid motions. By using dimensionless parameter analysis fluid regimes can be investigated in different scales of reactors. In this study, four important dimensionless flow parameters such as Reynolds number, P ` eclet number, Schmidt number, and Sherwood number were used for systematic analysis of hydrodynamic effects and power performance of recirculation mode microbial fuel cells together with computational fluid dynamics method. Results showed that the higher value of Reynolds number enhanced the convective flow of anolyte due to the dominant inertial forces in the flow field. Therefore, Reynolds number of 1.6 x 10(1) were obtained high mass transfer coefficient of 4.76 x 10(-7) m s(-1) and thin diffusion layer thickness of 2.52 x 10(-3) m. Maximum power density and limited current density of 2422.8 mW m(-2) and 4736.4 mA m(-2) were obtained respectively which were higher than Reynolds number of 0 by 1.61 and 1.69 times. These findings shall be useful for effective recirculation flow mode MFCs power production and have a great possibility for large scale applications.
| Item Type: | Article |
|---|---|
| Funders: | Department of Energy and Refrigerating Air-Conditioning Engineering, Ministry of Science and Technology, Taiwan (Grant No. 103-2221-E-197-022-MY3), National Taipei University of Technology |
| Uncontrolled Keywords: | Microbial fuel cell; Flow control; Dimensionless flow parameters; Recirculation mode; Computational fluid dynamics; Current density |
| Subjects: | T Technology > T Technology (General) |
| Divisions: | Faculty of Engineering > Department of Mechanical Engineering |
| Depositing User: | Ms Zaharah Ramly |
| Date Deposited: | 28 Dec 2023 08:06 |
| Last Modified: | 28 Dec 2023 08:06 |
| URI: | http://eprints.um.edu.my/id/eprint/36248 |
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