Assessment of cryogenic energy storage systems efficiency
This study evaluates the efficiency of cryogenic energy storage systems from energy, exergy, and economic perspectives. Cryogenic energy storage systems that store energy through gas liquefaction and regasification, offer high energy capacity but face challenges in storage efficiency. The authors pr...
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| Format: | Article |
| Language: | English |
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Samara National Research University
2025-06-01
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| Series: | Вестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение |
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| Online Access: | https://journals.ssau.ru/vestnik/article/viewFile/28710/11336 |
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| author | E. V. Blagin D. A. Uglanov |
| author_facet | E. V. Blagin D. A. Uglanov |
| author_sort | E. V. Blagin |
| collection | DOAJ |
| description | This study evaluates the efficiency of cryogenic energy storage systems from energy, exergy, and economic perspectives. Cryogenic energy storage systems that store energy through gas liquefaction and regasification, offer high energy capacity but face challenges in storage efficiency. The authors propose a comprehensive performance indicator that integrates these factors, addressing limitations of traditional metrics like the round-trip efficiency, which fails to account for external heat/cold sources. Analysis of 30 installations reveals that systems utilizing compression heat and cryogenic cold achieve up to 70% efficiency, while those relying solely on electricity average 25%. Key findings highlight the trade-offs between energy density, cost, and thermodynamic perfection, with advanced configurations (e.g., hybrid systems with LNG cold recovery) achieving round-trip efficiency more than 100% but lower exergy efficiency (10.4%). A novel composite metric balances , exergy efficiency, and specific energy capacity, identifying optimal designs. The study concludes that integrating auxiliary heat/cold storage and external energy sources (e.g., geothermal, LNG) enhances performance, though practical constraints like regenerative heat exchanger stability persist. |
| format | Article |
| id | doaj-art-a70985a27d544946aa7cceb4d7b8c83a |
| institution | Matheson Library |
| issn | 2542-0453 2541-7533 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | Samara National Research University |
| record_format | Article |
| series | Вестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение |
| spelling | doaj-art-a70985a27d544946aa7cceb4d7b8c83a2025-06-27T06:49:43ZengSamara National Research UniversityВестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение2542-04532541-75332025-06-0124210912310.18287/2541-7533-2025-24-2-109-1238974Assessment of cryogenic energy storage systems efficiencyE. V. Blagin0https://orcid.org/0000-0002-8921-4122D. A. Uglanov1Samara National Research UniversitySamara National Research UniversityThis study evaluates the efficiency of cryogenic energy storage systems from energy, exergy, and economic perspectives. Cryogenic energy storage systems that store energy through gas liquefaction and regasification, offer high energy capacity but face challenges in storage efficiency. The authors propose a comprehensive performance indicator that integrates these factors, addressing limitations of traditional metrics like the round-trip efficiency, which fails to account for external heat/cold sources. Analysis of 30 installations reveals that systems utilizing compression heat and cryogenic cold achieve up to 70% efficiency, while those relying solely on electricity average 25%. Key findings highlight the trade-offs between energy density, cost, and thermodynamic perfection, with advanced configurations (e.g., hybrid systems with LNG cold recovery) achieving round-trip efficiency more than 100% but lower exergy efficiency (10.4%). A novel composite metric balances , exergy efficiency, and specific energy capacity, identifying optimal designs. The study concludes that integrating auxiliary heat/cold storage and external energy sources (e.g., geothermal, LNG) enhances performance, though practical constraints like regenerative heat exchanger stability persist.https://journals.ssau.ru/vestnik/article/viewFile/28710/11336cryogenic energy storageround-trip efficiencyexergy efficiencyspecific energy capacity |
| spellingShingle | E. V. Blagin D. A. Uglanov Assessment of cryogenic energy storage systems efficiency Вестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение cryogenic energy storage round-trip efficiency exergy efficiency specific energy capacity |
| title | Assessment of cryogenic energy storage systems efficiency |
| title_full | Assessment of cryogenic energy storage systems efficiency |
| title_fullStr | Assessment of cryogenic energy storage systems efficiency |
| title_full_unstemmed | Assessment of cryogenic energy storage systems efficiency |
| title_short | Assessment of cryogenic energy storage systems efficiency |
| title_sort | assessment of cryogenic energy storage systems efficiency |
| topic | cryogenic energy storage round-trip efficiency exergy efficiency specific energy capacity |
| url | https://journals.ssau.ru/vestnik/article/viewFile/28710/11336 |
| work_keys_str_mv | AT evblagin assessmentofcryogenicenergystoragesystemsefficiency AT dauglanov assessmentofcryogenicenergystoragesystemsefficiency |