Kilowatt-Scale Fuel Cell Systems Powered by Recycled Aluminum
| Autor: | Douglas P. Hart, Jason Fischman, Peter Godart |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Materials science
Scale (ratio) Renewable Energy Sustainability and the Environment 020209 energy Mechanical Engineering Nuclear engineering 05 social sciences Energy Engineering and Power Technology chemistry.chemical_element 02 engineering and technology Electronic Optical and Magnetic Materials chemistry Mechanics of Materials Aluminium 0502 economics and business 0202 electrical engineering electronic engineering information engineering Fuel cells 050207 economics |
| Zdroj: | Journal of Electrochemical Energy Conversion and Storage. 18 |
| ISSN: | 2381-6910 2381-6872 |
| DOI: | 10.1115/1.4046660 |
| Popis: | Presented here is a novel system that uses an aluminum-based fuel to continuously produce electrical power at the kilowatt scale via a hydrogen fuel cell. This fuel has an energy density of 23.3 kW h/L and can be produced from abundant scrap aluminum via a minimal surface treatment of gallium and indium. These additional metals, which in total comprise 2.5% of the fuel’s mass, permeate the grain boundary network of the aluminum to disrupt its oxide layer, thereby enabling the fuel to react exothermically with water to produce hydrogen gas and aluminum oxyhydroxide (AlOOH), an inert and valuable byproduct. To generate electrical power using this fuel, the aluminum–water reaction is controlled via water input to a reaction vessel in order to produce a constant flow of hydrogen, which is then consumed in a fuel cell to produce electricity. As validation of this power system architecture, we present the design and implementation of two proton-exchange membrane (PEM) fuel cell systems that successfully demonstrate this approach. The first is a 3 kW emergency power supply, and the second is a 10 kW power system integrated into a BMW i3 electric vehicle. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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