An alternative concept for DMFC - Combined electrolyzer and H2 PEMFC
| Autor: | Tuula Noponen, Aarne Halme, Axel Kohonen, Jorma Selkäinaho |
|---|---|
| Přispěvatelé: | Department of Electrical Engineering and Automation, Department of Mechanical Engineering, Aalto-yliopisto, Aalto University |
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
020209 energy
Energy Engineering and Power Technology Proton exchange membrane fuel cell 02 engineering and technology law.invention Stack (abstract data type) law Portable power sources 0202 electrical engineering electronic engineering information engineering Electronics Methanol electrolysis Process engineering Electrolysis ta213 Renewable Energy Sustainability and the Environment Chemistry business.industry Scale (chemistry) Hydrogen as energy carrier Condensed Matter Physics Power (physics) Combined electrolysis and PEM fuel cell Fuel Technology business Electrical efficiency Polymer electrolyte membrane electrolysis |
| Popis: | The article introduces a novel concept that combines a methanol electrolyzer and a H2-PEMFC to a power source for small scale applications, e.g. portable electronics. Due to the low energy requirements of methanol electrolysis the released hydrogen contains enough energy both to maintain the electrolysis and to provide power to the application device. The concept is comparable to DMFC technology, but offers additional features, which make it interesting when developing the methanol based small scaled power sources further. The article considers those features both theoretically and experimentally by a proof-of - the concept approach. Comparison to DMFC is made through a semi-empirical modeling which determines the conditions where the combined system has a better power efficiency. In addition, some interesting properties like tolerance to high methanol concentrations are considered and justified. Finally, a rough comparison of the stack sizes needed by the two concepts is made through an illustrative design example. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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