Investigation on voltage loss mechanism for direct methanol fuel cell
Direct methanol fuel cell (DMFC) is a device which converts chemical potential energy into electrical energy through the electrochemical reaction that involves oxidation of methanol. This study investigates the underlying voltage loss mechanism and determines how a change in process conditions will...
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| Format: | Article |
| Language: | English |
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Elsevier
2023-11-01
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| Series: | Energy Reports |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2352484723010491 |
| _version_ | 1797378691201761280 |
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| author | A. Ismail Y.W. Kee |
| author_facet | A. Ismail Y.W. Kee |
| author_sort | A. Ismail |
| collection | DOAJ |
| description | Direct methanol fuel cell (DMFC) is a device which converts chemical potential energy into electrical energy through the electrochemical reaction that involves oxidation of methanol. This study investigates the underlying voltage loss mechanism and determines how a change in process conditions will affects the resulting voltage loss, through the development of a one-dimensional mathematical DMFC model in software (MATLAB). The one-dimensional mathematical model has adopted a modelling approach that is simple and relatively easy to be constructed, thus providing a method for simple yet accurate estimation of the DMFC voltage loss curve. The study is conducting in three stages, which include the construction of preliminary model, model parameter fitting and model simulation. Based on the developed DMFC model, the polarization curve of a DMFC are dividing into three regions, including activation polarization-controlled region, ohmic drop controlled region and concentration polarization-controlled region. In each of these regions, one of the voltage loss mechanisms is the dominant mechanism that causes the greatest voltage loss. Voltage loss from all three mechanisms are finding to be reduced at higher temperature. The simulated DMFC can operate at a maximum power density of 0.15 W/cm2, with a voltage efficiency of 33.9%. This model operates at temperature of 343K and uses 2M methanol concentration. |
| first_indexed | 2024-03-08T20:11:20Z |
| format | Article |
| id | doaj.art-9c5cd30ff0074c7b8f0556cb2198ba9a |
| institution | Directory Open Access Journal |
| issn | 2352-4847 |
| language | English |
| last_indexed | 2024-03-08T20:11:20Z |
| publishDate | 2023-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Energy Reports |
| spelling | doaj.art-9c5cd30ff0074c7b8f0556cb2198ba9a2023-12-23T05:21:04ZengElsevierEnergy Reports2352-48472023-11-0110535543Investigation on voltage loss mechanism for direct methanol fuel cellA. Ismail0Y.W. Kee1Corresponding author.; Department of Chemical Engineering, LKC Faculty of Engineering and Science, Universiti Tunku Abdul Rahman, Sungai Long Campus, Jalan Sungai Long, Cheras, 43000 Kajang, Selangor, MalaysiaDepartment of Chemical Engineering, LKC Faculty of Engineering and Science, Universiti Tunku Abdul Rahman, Sungai Long Campus, Jalan Sungai Long, Cheras, 43000 Kajang, Selangor, MalaysiaDirect methanol fuel cell (DMFC) is a device which converts chemical potential energy into electrical energy through the electrochemical reaction that involves oxidation of methanol. This study investigates the underlying voltage loss mechanism and determines how a change in process conditions will affects the resulting voltage loss, through the development of a one-dimensional mathematical DMFC model in software (MATLAB). The one-dimensional mathematical model has adopted a modelling approach that is simple and relatively easy to be constructed, thus providing a method for simple yet accurate estimation of the DMFC voltage loss curve. The study is conducting in three stages, which include the construction of preliminary model, model parameter fitting and model simulation. Based on the developed DMFC model, the polarization curve of a DMFC are dividing into three regions, including activation polarization-controlled region, ohmic drop controlled region and concentration polarization-controlled region. In each of these regions, one of the voltage loss mechanisms is the dominant mechanism that causes the greatest voltage loss. Voltage loss from all three mechanisms are finding to be reduced at higher temperature. The simulated DMFC can operate at a maximum power density of 0.15 W/cm2, with a voltage efficiency of 33.9%. This model operates at temperature of 343K and uses 2M methanol concentration.http://www.sciencedirect.com/science/article/pii/S2352484723010491Direct methanol fuel cellVoltage loss mechanismOperating temperatureMathematical model |
| spellingShingle | A. Ismail Y.W. Kee Investigation on voltage loss mechanism for direct methanol fuel cell Energy Reports Direct methanol fuel cell Voltage loss mechanism Operating temperature Mathematical model |
| title | Investigation on voltage loss mechanism for direct methanol fuel cell |
| title_full | Investigation on voltage loss mechanism for direct methanol fuel cell |
| title_fullStr | Investigation on voltage loss mechanism for direct methanol fuel cell |
| title_full_unstemmed | Investigation on voltage loss mechanism for direct methanol fuel cell |
| title_short | Investigation on voltage loss mechanism for direct methanol fuel cell |
| title_sort | investigation on voltage loss mechanism for direct methanol fuel cell |
| topic | Direct methanol fuel cell Voltage loss mechanism Operating temperature Mathematical model |
| url | http://www.sciencedirect.com/science/article/pii/S2352484723010491 |
| work_keys_str_mv | AT aismail investigationonvoltagelossmechanismfordirectmethanolfuelcell AT ywkee investigationonvoltagelossmechanismfordirectmethanolfuelcell |