Metal Hydrides for High-Temperature Power Generation
Metal hydrides can be utilized for hydrogen storage and for thermal energy storage (TES) applications. By using TES with solar technologies, heat can be stored from sun energy to be used later, which enables continuous power generation. We are developing a TES technology based on a dual-bed metal hy...
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| Format: | Article |
| Language: | English |
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MDPI AG
2015-08-01
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| Series: | Energies |
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| Online Access: | http://www.mdpi.com/1996-1073/8/8/8406 |
| _version_ | 1818033376662126592 |
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| author | Ewa C. E. Rönnebro Greg Whyatt Michael Powell Matthew Westman Feng (Richard) Zheng Zhigang Zak Fang |
| author_facet | Ewa C. E. Rönnebro Greg Whyatt Michael Powell Matthew Westman Feng (Richard) Zheng Zhigang Zak Fang |
| author_sort | Ewa C. E. Rönnebro |
| collection | DOAJ |
| description | Metal hydrides can be utilized for hydrogen storage and for thermal energy storage (TES) applications. By using TES with solar technologies, heat can be stored from sun energy to be used later, which enables continuous power generation. We are developing a TES technology based on a dual-bed metal hydride system, which has a high-temperature (HT) metal hydride operating reversibly at 600–800 °C to generate heat, as well as a low-temperature (LT) hydride near room temperature that is used for hydrogen storage during sun hours until there is the need to produce electricity, such as during night time, a cloudy day or during peak hours. We proceeded from selecting a high-energy density HT-hydride based on performance characterization on gram-sized samples scaled up to kilogram quantities with retained performance. COMSOL Multiphysics was used to make performance predictions for cylindrical hydride beds with varying diameters and thermal conductivities. Based on experimental and modeling results, a ~200-kWh/m3 bench-scale prototype was designed and fabricated, and we demonstrated the ability to meet or exceed all performance targets. |
| first_indexed | 2024-12-10T06:22:17Z |
| format | Article |
| id | doaj.art-9fd5eac6e4b347e69a4f6536b02848ca |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-12-10T06:22:17Z |
| publishDate | 2015-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-9fd5eac6e4b347e69a4f6536b02848ca2022-12-22T01:59:18ZengMDPI AGEnergies1996-10732015-08-01888406843010.3390/en8088406en8088406Metal Hydrides for High-Temperature Power GenerationEwa C. E. Rönnebro0Greg Whyatt1Michael Powell2Matthew Westman3Feng (Richard) Zheng4Zhigang Zak Fang5Pacific Northwest National Laboratory, Richland, WA 99352, USAPacific Northwest National Laboratory, Richland, WA 99352, USAPacific Northwest National Laboratory, Richland, WA 99352, USAPacific Northwest National Laboratory, Richland, WA 99352, USAPacific Northwest National Laboratory, Richland, WA 99352, USADepartment of Metallurgical Engineering, University of Utah, 135 S. 1460 E., Room 412, Salt Lake City, UT 84112, USAMetal hydrides can be utilized for hydrogen storage and for thermal energy storage (TES) applications. By using TES with solar technologies, heat can be stored from sun energy to be used later, which enables continuous power generation. We are developing a TES technology based on a dual-bed metal hydride system, which has a high-temperature (HT) metal hydride operating reversibly at 600–800 °C to generate heat, as well as a low-temperature (LT) hydride near room temperature that is used for hydrogen storage during sun hours until there is the need to produce electricity, such as during night time, a cloudy day or during peak hours. We proceeded from selecting a high-energy density HT-hydride based on performance characterization on gram-sized samples scaled up to kilogram quantities with retained performance. COMSOL Multiphysics was used to make performance predictions for cylindrical hydride beds with varying diameters and thermal conductivities. Based on experimental and modeling results, a ~200-kWh/m3 bench-scale prototype was designed and fabricated, and we demonstrated the ability to meet or exceed all performance targets.http://www.mdpi.com/1996-1073/8/8/8406metal hydridesthermal energy storagehydrogen storagehydrogen diffusion ratethermal conductivityscale-upsolar technologies |
| spellingShingle | Ewa C. E. Rönnebro Greg Whyatt Michael Powell Matthew Westman Feng (Richard) Zheng Zhigang Zak Fang Metal Hydrides for High-Temperature Power Generation Energies metal hydrides thermal energy storage hydrogen storage hydrogen diffusion rate thermal conductivity scale-up solar technologies |
| title | Metal Hydrides for High-Temperature Power Generation |
| title_full | Metal Hydrides for High-Temperature Power Generation |
| title_fullStr | Metal Hydrides for High-Temperature Power Generation |
| title_full_unstemmed | Metal Hydrides for High-Temperature Power Generation |
| title_short | Metal Hydrides for High-Temperature Power Generation |
| title_sort | metal hydrides for high temperature power generation |
| topic | metal hydrides thermal energy storage hydrogen storage hydrogen diffusion rate thermal conductivity scale-up solar technologies |
| url | http://www.mdpi.com/1996-1073/8/8/8406 |
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