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Effects of anode materials in electricity generation of microalgal-biophotovoltaic system – part II: free-floating microalgae in aeration mode

A biophotovoltaic (BPV) system is a developing renewable energy technology that promises carbon-free electricity generation from solar energy, by utilizing photosynthetic exoelectrogenic microorganisms. The electrical power production of BPV devices, on the other hand, is relatively low, and this ha...

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Main Authors: Chin, Jia Chun, Khor, Wei Han, Ng, Fong Lee, Chong, William Woei Fong, Wu, Yun Ta, Kang, Hooi Siang
Format: Article
Published: Elsevier Ltd 2022
Subjects:
TJ Mechanical engineering and machinery
Online Access:http://eprints.utm.my/id/eprint/101186/
http://dx.doi.org/10.1016/j.matpr.2022.03.576
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spelling my.utm.1011862023-06-01T09:38:23Z http://eprints.utm.my/id/eprint/101186/ Effects of anode materials in electricity generation of microalgal-biophotovoltaic system – part II: free-floating microalgae in aeration mode Chin, Jia Chun Khor, Wei Han Ng, Fong Lee Chong, William Woei Fong Wu, Yun Ta Kang, Hooi Siang TJ Mechanical engineering and machinery A biophotovoltaic (BPV) system is a developing renewable energy technology that promises carbon-free electricity generation from solar energy, by utilizing photosynthetic exoelectrogenic microorganisms. The electrical power production of BPV devices, on the other hand, is relatively low, and this has become a significant challenge for this new technology. Sufficient supply would require large-scale BPV farms for megawatt applications, which may not be economically viable. A possible solution is to acquire bioelectricity from algae cultivation medium, as it benefits the system in terms of volume. Moreover, it enables combination with an algae pool or floating photobioreactor. One technical concern is that previous studies focused on the absorption of electrons from cultivated biofilm, whereas bioelectricity generation by aerated algae cultivation medium under different anode materials still has research value. Hence, cell performance by well-mixed anodic algae cultivation medium under different anode materials is a crucial decision-making factor of BPV device in aeration mode. In this study, the experiments were repeated three times to compare the performances of various anode-based devices. In the experiments, indium tin oxide (ITO)-coated glass-based BPV device produced a steady power output, comparable to those of graphite- and ITO-coated plastic-based BPV devices. Maximum power densities of 0.659 mW/m2, 0.437 mW/m2, and 0.059 mW/m2, respectively, were obtained in each repeated condition. The findings are expected to contribute to further understanding on the correlation of these parameters, with regards to power generation of the BPV devices. Elsevier Ltd 2022 Article PeerReviewed Chin, Jia Chun and Khor, Wei Han and Ng, Fong Lee and Chong, William Woei Fong and Wu, Yun Ta and Kang, Hooi Siang (2022) Effects of anode materials in electricity generation of microalgal-biophotovoltaic system – part II: free-floating microalgae in aeration mode. Materials Today: Proceedings, 65 (7). pp. 2992-2999. ISSN 2214-7853 http://dx.doi.org/10.1016/j.matpr.2022.03.576 DOI:10.1016/j.matpr.2022.03.576
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
topic TJ Mechanical engineering and machinery
spellingShingle TJ Mechanical engineering and machinery
Chin, Jia Chun
Khor, Wei Han
Ng, Fong Lee
Chong, William Woei Fong
Wu, Yun Ta
Kang, Hooi Siang
Effects of anode materials in electricity generation of microalgal-biophotovoltaic system – part II: free-floating microalgae in aeration mode
description A biophotovoltaic (BPV) system is a developing renewable energy technology that promises carbon-free electricity generation from solar energy, by utilizing photosynthetic exoelectrogenic microorganisms. The electrical power production of BPV devices, on the other hand, is relatively low, and this has become a significant challenge for this new technology. Sufficient supply would require large-scale BPV farms for megawatt applications, which may not be economically viable. A possible solution is to acquire bioelectricity from algae cultivation medium, as it benefits the system in terms of volume. Moreover, it enables combination with an algae pool or floating photobioreactor. One technical concern is that previous studies focused on the absorption of electrons from cultivated biofilm, whereas bioelectricity generation by aerated algae cultivation medium under different anode materials still has research value. Hence, cell performance by well-mixed anodic algae cultivation medium under different anode materials is a crucial decision-making factor of BPV device in aeration mode. In this study, the experiments were repeated three times to compare the performances of various anode-based devices. In the experiments, indium tin oxide (ITO)-coated glass-based BPV device produced a steady power output, comparable to those of graphite- and ITO-coated plastic-based BPV devices. Maximum power densities of 0.659 mW/m2, 0.437 mW/m2, and 0.059 mW/m2, respectively, were obtained in each repeated condition. The findings are expected to contribute to further understanding on the correlation of these parameters, with regards to power generation of the BPV devices.
format Article
author Chin, Jia Chun
Khor, Wei Han
Ng, Fong Lee
Chong, William Woei Fong
Wu, Yun Ta
Kang, Hooi Siang
author_facet Chin, Jia Chun
Khor, Wei Han
Ng, Fong Lee
Chong, William Woei Fong
Wu, Yun Ta
Kang, Hooi Siang
author_sort Chin, Jia Chun
title Effects of anode materials in electricity generation of microalgal-biophotovoltaic system – part II: free-floating microalgae in aeration mode
title_short Effects of anode materials in electricity generation of microalgal-biophotovoltaic system – part II: free-floating microalgae in aeration mode
title_full Effects of anode materials in electricity generation of microalgal-biophotovoltaic system – part II: free-floating microalgae in aeration mode
title_fullStr Effects of anode materials in electricity generation of microalgal-biophotovoltaic system – part II: free-floating microalgae in aeration mode
title_full_unstemmed Effects of anode materials in electricity generation of microalgal-biophotovoltaic system – part II: free-floating microalgae in aeration mode
title_sort effects of anode materials in electricity generation of microalgal-biophotovoltaic system – part ii: free-floating microalgae in aeration mode
publisher Elsevier Ltd
publishDate 2022
url http://eprints.utm.my/id/eprint/101186/
http://dx.doi.org/10.1016/j.matpr.2022.03.576
_version_ 1768006621280075776
score 13.211869

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