Performance analysis of a high-temperature magnesium hydride reactor tank with a helical coil heat exchanger for thermal storage
© 2020 Hydrogen Energy Publications LLC Metal hydrides are regarded as one of the most attractive options for thermal energy storage (TES) materials for concentrated solar thermal applications. Improved thermal performance of such systems is vitally determined by the effectiveness of heat exchan...
| Main Authors: | , , , , , |
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| Format: | Journal Article |
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Elsevier
2020
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| Online Access: | http://purl.org/au-research/grants/arc/FT160100303 http://hdl.handle.net/20.500.11937/82256 |
| _version_ | 1848764486974963712 |
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| author | Mathew, Arun Nadim, Nima Chandratilleke, Tilak Humphries, Terry Paskevicius, Mark Buckley, Craig |
| author_facet | Mathew, Arun Nadim, Nima Chandratilleke, Tilak Humphries, Terry Paskevicius, Mark Buckley, Craig |
| author_sort | Mathew, Arun |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | © 2020 Hydrogen Energy Publications LLC
Metal hydrides are regarded as one of the most attractive options for thermal energy storage (TES) materials for concentrated solar thermal applications. Improved thermal performance of such systems is vitally determined by the effectiveness of heat exchange between the metal hydride and the heat transfer fluid (HTF). This paper presents a numerical study supported by experimental validation on a magnesium hydride reactor fitted with a helical coil heat exchanger for enhanced thermal performance. The model incorporates hydrogen absorption kinetics of ball-milled magnesium hydride, with titanium boride and expanded natural graphite additives obtained by Sievert's apparatus measurements and considers thermal diffusion within the reactor to the heat transfer fluid for a realistic representation of its operation. A detailed parametric analysis is carried out, and the outcomes are discussed, examining the ramifications of hydrogen supply pressure and its flow rate. The study identifies that the enhancement of thermal conductivity in magnesium hydride has an insignificant impact on current reactor performance. |
| first_indexed | 2025-11-14T11:20:08Z |
| format | Journal Article |
| id | curtin-20.500.11937-82256 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T11:20:08Z |
| publishDate | 2020 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-822562023-11-01T04:22:03Z Performance analysis of a high-temperature magnesium hydride reactor tank with a helical coil heat exchanger for thermal storage Mathew, Arun Nadim, Nima Chandratilleke, Tilak Humphries, Terry Paskevicius, Mark Buckley, Craig © 2020 Hydrogen Energy Publications LLC Metal hydrides are regarded as one of the most attractive options for thermal energy storage (TES) materials for concentrated solar thermal applications. Improved thermal performance of such systems is vitally determined by the effectiveness of heat exchange between the metal hydride and the heat transfer fluid (HTF). This paper presents a numerical study supported by experimental validation on a magnesium hydride reactor fitted with a helical coil heat exchanger for enhanced thermal performance. The model incorporates hydrogen absorption kinetics of ball-milled magnesium hydride, with titanium boride and expanded natural graphite additives obtained by Sievert's apparatus measurements and considers thermal diffusion within the reactor to the heat transfer fluid for a realistic representation of its operation. A detailed parametric analysis is carried out, and the outcomes are discussed, examining the ramifications of hydrogen supply pressure and its flow rate. The study identifies that the enhancement of thermal conductivity in magnesium hydride has an insignificant impact on current reactor performance. 2020 Journal Article http://hdl.handle.net/20.500.11937/82256 10.1016/j.ijhydene.2020.09.191 http://purl.org/au-research/grants/arc/FT160100303 http://purl.org/au-research/grants/arc/LP150100730 http://purl.org/au-research/grants/arc/LP120101848 http://creativecommons.org/licenses/by-nc-nd/4.0/ Elsevier fulltext |
| spellingShingle | Mathew, Arun Nadim, Nima Chandratilleke, Tilak Humphries, Terry Paskevicius, Mark Buckley, Craig Performance analysis of a high-temperature magnesium hydride reactor tank with a helical coil heat exchanger for thermal storage |
| title | Performance analysis of a high-temperature magnesium hydride reactor tank with a helical coil heat exchanger for thermal storage |
| title_full | Performance analysis of a high-temperature magnesium hydride reactor tank with a helical coil heat exchanger for thermal storage |
| title_fullStr | Performance analysis of a high-temperature magnesium hydride reactor tank with a helical coil heat exchanger for thermal storage |
| title_full_unstemmed | Performance analysis of a high-temperature magnesium hydride reactor tank with a helical coil heat exchanger for thermal storage |
| title_short | Performance analysis of a high-temperature magnesium hydride reactor tank with a helical coil heat exchanger for thermal storage |
| title_sort | performance analysis of a high-temperature magnesium hydride reactor tank with a helical coil heat exchanger for thermal storage |
| url | http://purl.org/au-research/grants/arc/FT160100303 http://purl.org/au-research/grants/arc/FT160100303 http://purl.org/au-research/grants/arc/FT160100303 http://hdl.handle.net/20.500.11937/82256 |