Optimization of Hexagonal Structure for Enhancing Heat Transfer in Storage System
Thermal performance was tested during cycling work for latent heat storage systems based on KNO<sub>3</sub> and NaNO<sub>3</sub> (weight ratio 54:46). For heat transfer improvement, cast aluminum honeycomb-shaped structures were produced via 3D printing of polymer model and i...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-01-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/16/3/1207 |
| _version_ | 1797623911639154688 |
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| author | Natalia Raźny Anna Dmitruk Artur Nemś Magdalena Nemś Krzysztof Naplocha |
| author_facet | Natalia Raźny Anna Dmitruk Artur Nemś Magdalena Nemś Krzysztof Naplocha |
| author_sort | Natalia Raźny |
| collection | DOAJ |
| description | Thermal performance was tested during cycling work for latent heat storage systems based on KNO<sub>3</sub> and NaNO<sub>3</sub> (weight ratio 54:46). For heat transfer improvement, cast aluminum honeycomb-shaped structures were produced via 3D printing of polymer model and investment casting. Different wall thicknesses were tested at 1.2 mm and 1.6 mm. The obtained results were compared to working cycles of pure PCM bed. The use of enhancers is reported to improve the rate of charging and discharging of the deposit. In the next step, the structures were examined with numerical simulation performed with ANSYS Fluent software. The wall thicknesses taken into consideration were the following: 0.8, 1.2, 1.6, and 2.0 mm. An insert with a greater wall thickness allows for smaller dT/dt and better heat distribution in the vessel. The investment casting process enables the manufacturing of complex structures of custom shapes without porosity and contamination. |
| first_indexed | 2024-03-11T09:35:39Z |
| format | Article |
| id | doaj.art-82a7bc749ace48828aaa07c576bbf5a2 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-11T09:35:39Z |
| publishDate | 2023-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-82a7bc749ace48828aaa07c576bbf5a22023-11-16T17:18:41ZengMDPI AGMaterials1996-19442023-01-01163120710.3390/ma16031207Optimization of Hexagonal Structure for Enhancing Heat Transfer in Storage SystemNatalia Raźny0Anna Dmitruk1Artur Nemś2Magdalena Nemś3Krzysztof Naplocha4Department of Lightweight Elements Engineering, Foundry and Automation, Faculty of Mechanical Engineering, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, PolandDepartment of Lightweight Elements Engineering, Foundry and Automation, Faculty of Mechanical Engineering, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, PolandDepartment of Thermodynamics and Renewable Energy Sources, Faculty of Mechanical and Power Engineering, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, PolandDepartment of Thermodynamics and Renewable Energy Sources, Faculty of Mechanical and Power Engineering, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, PolandDepartment of Lightweight Elements Engineering, Foundry and Automation, Faculty of Mechanical Engineering, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, PolandThermal performance was tested during cycling work for latent heat storage systems based on KNO<sub>3</sub> and NaNO<sub>3</sub> (weight ratio 54:46). For heat transfer improvement, cast aluminum honeycomb-shaped structures were produced via 3D printing of polymer model and investment casting. Different wall thicknesses were tested at 1.2 mm and 1.6 mm. The obtained results were compared to working cycles of pure PCM bed. The use of enhancers is reported to improve the rate of charging and discharging of the deposit. In the next step, the structures were examined with numerical simulation performed with ANSYS Fluent software. The wall thicknesses taken into consideration were the following: 0.8, 1.2, 1.6, and 2.0 mm. An insert with a greater wall thickness allows for smaller dT/dt and better heat distribution in the vessel. The investment casting process enables the manufacturing of complex structures of custom shapes without porosity and contamination.https://www.mdpi.com/1996-1944/16/3/1207heat storageheat transferPCMspatial structureshoneycombmetal structures |
| spellingShingle | Natalia Raźny Anna Dmitruk Artur Nemś Magdalena Nemś Krzysztof Naplocha Optimization of Hexagonal Structure for Enhancing Heat Transfer in Storage System Materials heat storage heat transfer PCM spatial structures honeycomb metal structures |
| title | Optimization of Hexagonal Structure for Enhancing Heat Transfer in Storage System |
| title_full | Optimization of Hexagonal Structure for Enhancing Heat Transfer in Storage System |
| title_fullStr | Optimization of Hexagonal Structure for Enhancing Heat Transfer in Storage System |
| title_full_unstemmed | Optimization of Hexagonal Structure for Enhancing Heat Transfer in Storage System |
| title_short | Optimization of Hexagonal Structure for Enhancing Heat Transfer in Storage System |
| title_sort | optimization of hexagonal structure for enhancing heat transfer in storage system |
| topic | heat storage heat transfer PCM spatial structures honeycomb metal structures |
| url | https://www.mdpi.com/1996-1944/16/3/1207 |
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