An operational high temperature thermal energy storage system using magnesium iron hydride
| Autor: | Terry D. Humphries, Mark Paskevicius, Craig E. Buckley, Lucas Poupin |
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| Rok vydání: | 2021 |
| Předmět: |
Battery (electricity)
Materials science Iron hydride Hydrogen Renewable Energy Sustainability and the Environment Magnesium 05 social sciences Energy Engineering and Power Technology chemistry.chemical_element 02 engineering and technology 021001 nanoscience & nanotechnology Condensed Matter Physics Thermal energy storage 7. Clean energy Energy storage Fuel Technology chemistry Chemical engineering Operating temperature 13. Climate action 0502 economics and business 050207 economics 0210 nano-technology Thermal Battery |
| Zdroj: | International Journal of Hydrogen Energy. 46:38755-38767 |
| ISSN: | 0360-3199 |
| Popis: | Metal hydrides have been demonstrated as energy storage materials for thermal battery applications. This is due to the high energy density associated with the reversible thermochemical reaction between metals and hydrogen. Magnesium iron hydride (Mg2FeH6) is one such material that has been identified as a thermal energy storage material due to its reversible hydrogenation reaction at temperatures between 400 and 600 °C. This study demonstates an automated thermal battery prototype containing 900 g of Mg2FeH6 as the thermal energy storage material with pressurised water acting as the heat transfer fluid to charge and discharge the battery. The operating conditions of the system were optimised by assessing the ideal operating temperature, flow rate of the heat transfer fluid, and hydrogen pressures. Overall, excellent cyclic energy storage reversibility was demonstrated between 410 and 450 °C with a maximum energy capacity of 1650 kJ which is 87% of the theoretical value (1890 kJ). |
| Databáze: | OpenAIRE |
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