Comparison study of thermoclinic heat storage tanks using different liquid metals for concentrated solar power
Liquid metals are good potential heat transfer materials for thermoclinic heat storage (THS) systems and will play an important role in the next generation solar thermal power system with higher operating temperature. This paper presents a comparative research work on the charging, discharging and m...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-01-01
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| Series: | Case Studies in Thermal Engineering |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214157X22008723 |
| _version_ | 1797956274115051520 |
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| author | Gang Wang Zheng Xie Haichao Peng Tieliu Jiang |
| author_facet | Gang Wang Zheng Xie Haichao Peng Tieliu Jiang |
| author_sort | Gang Wang |
| collection | DOAJ |
| description | Liquid metals are good potential heat transfer materials for thermoclinic heat storage (THS) systems and will play an important role in the next generation solar thermal power system with higher operating temperature. This paper presents a comparative research work on the charging, discharging and mechanical performances of THS tanks based on four different liquid metal materials, which are lead (Pb), lead-bismuth alloy (PbBi), sodium (Na) and sodium-potassium alloy (NaK). The analysis results indicate that for both the charging and discharging processes, the lead-based THS tank can have the shortest operating duration, largest charging and discharging quantities (9.78 × 109 J and 9.21 × 109 J) as well as the highest discharging efficiency (94.17%), revealing its best operating performance. Relatively acceptable operating performances of lead-bismuth-based and sodium-based THS tanks are also demonstrated. Furthermore, in contrast with other three liquid metals, the lead-based THS tank also has the best mechanical performance. It has the smallest peak maximum mechanical stress of the steel wall (58.6 MPa). In summary, the lead-based THS tank has both the best heat storage and mechanical performances. |
| first_indexed | 2024-04-10T23:46:26Z |
| format | Article |
| id | doaj.art-eb65174a583d427c8b1633b7a8e627c3 |
| institution | Directory Open Access Journal |
| issn | 2214-157X |
| language | English |
| last_indexed | 2024-04-10T23:46:26Z |
| publishDate | 2023-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Thermal Engineering |
| spelling | doaj.art-eb65174a583d427c8b1633b7a8e627c32023-01-11T04:29:15ZengElsevierCase Studies in Thermal Engineering2214-157X2023-01-0141102635Comparison study of thermoclinic heat storage tanks using different liquid metals for concentrated solar powerGang Wang0Zheng Xie1Haichao Peng2Tieliu Jiang3School of Energy and Power Engineering, Northeast Electric Power University, Jilin, 132012, Jilin, China; Corresponding author.School of Energy and Power Engineering, Northeast Electric Power University, Jilin, 132012, Jilin, ChinaState Grid Songyuan Electric Power Supply Company, Songyuan, 138000, Jilin, ChinaSchool of Energy and Power Engineering, Northeast Electric Power University, Jilin, 132012, Jilin, ChinaLiquid metals are good potential heat transfer materials for thermoclinic heat storage (THS) systems and will play an important role in the next generation solar thermal power system with higher operating temperature. This paper presents a comparative research work on the charging, discharging and mechanical performances of THS tanks based on four different liquid metal materials, which are lead (Pb), lead-bismuth alloy (PbBi), sodium (Na) and sodium-potassium alloy (NaK). The analysis results indicate that for both the charging and discharging processes, the lead-based THS tank can have the shortest operating duration, largest charging and discharging quantities (9.78 × 109 J and 9.21 × 109 J) as well as the highest discharging efficiency (94.17%), revealing its best operating performance. Relatively acceptable operating performances of lead-bismuth-based and sodium-based THS tanks are also demonstrated. Furthermore, in contrast with other three liquid metals, the lead-based THS tank also has the best mechanical performance. It has the smallest peak maximum mechanical stress of the steel wall (58.6 MPa). In summary, the lead-based THS tank has both the best heat storage and mechanical performances.http://www.sciencedirect.com/science/article/pii/S2214157X22008723Solar powerThermoclinic heat storage tankLiquid metalDischarging performanceMechanical performance |
| spellingShingle | Gang Wang Zheng Xie Haichao Peng Tieliu Jiang Comparison study of thermoclinic heat storage tanks using different liquid metals for concentrated solar power Case Studies in Thermal Engineering Solar power Thermoclinic heat storage tank Liquid metal Discharging performance Mechanical performance |
| title | Comparison study of thermoclinic heat storage tanks using different liquid metals for concentrated solar power |
| title_full | Comparison study of thermoclinic heat storage tanks using different liquid metals for concentrated solar power |
| title_fullStr | Comparison study of thermoclinic heat storage tanks using different liquid metals for concentrated solar power |
| title_full_unstemmed | Comparison study of thermoclinic heat storage tanks using different liquid metals for concentrated solar power |
| title_short | Comparison study of thermoclinic heat storage tanks using different liquid metals for concentrated solar power |
| title_sort | comparison study of thermoclinic heat storage tanks using different liquid metals for concentrated solar power |
| topic | Solar power Thermoclinic heat storage tank Liquid metal Discharging performance Mechanical performance |
| url | http://www.sciencedirect.com/science/article/pii/S2214157X22008723 |
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