Liquid cooling system performance analysis: free cooling opportunities in Saint Petersburg
- 作者: Sigunov R.V.1, Baranov I.V.1, Mitropov V.V.1
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隶属关系:
- ITMO University
- 期: 卷 114, 编号 1 (2025)
- 页面: 27-34
- 栏目: Reviews
- URL: https://journals.rcsi.science/0023-124X/article/view/357920
- DOI: https://doi.org/10.17816/RF678130
- EDN: https://elibrary.ru/FTEMLG
- ID: 357920
如何引用文章
详细
This paper presents an analysis and comparison of the energy and cost effectiveness of year-round liquid cooling systems that could be used in the climate of Saint Petersburg. An analysis of average monthly outdoor air temperatures over the past 10 years and the calculation of the seasonal energy performance ratio of a standard chiller and a chiller with an integrated free cooling system allowed to calculate the cost effectiveness of the free cooling technology.
The study showed that a chiller with an integrated free cooling system has a significantly higher (by approximately 30%) seasonal energy performance ratio compared to a standard chiller. A cost estimate has confirmed that, despite higher initial capital costs, the free cooling system provides annual energy savings of approximately 1.5 million RUB. Economic benefits (return on additional investment) are already achieved in the first year of operation due to a significant reduction in operating costs.
This study analyzes and provides design solutions for cooling systems based on real-life climate data for Saint Petersburg (average annual temperature = 7.1 °C) and the parameters of specific systems, enhansing the applicability of the findings in desiging energy-efficient systems in this region.
作者简介
Rostislav Sigunov
ITMO University
编辑信件的主要联系方式.
Email: rsigunov@thermexenergy.ru
俄罗斯联邦, Saint Petersburg
Igor Baranov
ITMO University
Email: barigor@mail.ru
ORCID iD: 0000-0003-0595-368X
SPIN 代码: 1938-6901
Scopus 作者 ID: 57209773690
Dr. Sci. (Engineering), Professor
俄罗斯联邦, Saint PetersburgVladimir Mitropov
ITMO University
Email: vvmitropov@itmo.ru
ORCID iD: 0000-0003-1614-7392
SPIN 代码: 6602-5288
Scopus 作者 ID: 57213689378
Cand. Sci. (Engineering), Assistant Professor
俄罗斯联邦, Saint Petersburg参考
- Kwon TD, Jeong JW. Energy advantage of cold energy recovery system using water- and air-side free cooling technologies in semiconductor fabrication plant in summer. Journal of Building Engineering. 2023;69. doi: 10.1016/j.jobe.2023.106277 EDN: GMMJPE
- Kargar S, Moran JL. Combining direct and indirect free cooling for data centers via transformation into a building-scale heat exchanger. Applied Energy. 2025;392. doi: 10.1016/j.apenergy.2025.125973
- Borkowski M, Piłat AK. Customized data center cooling system operating at significant outdoor temperature fluctuations. Applied Energy. 2022;306. doi: 10.1016/j.apenergy.2021.117975 EDN: SUOFIH
- Borkowski M, Piłat AK. Energy Efficiency Increase Achieved by Dedicated Rule-Based Control of Chillers Operating in the Data Center. Energies. 2022;15. doi: 10.3390/en15010254 EDN: HKJTHD
- Astafiev R. Application of direct freecooling (freshcooling) based on STULZ precision air conditioning. AVOK. 2021;7:16–19. (In Russ.)
- Khomutskiy Yu. Bulletin of the UCC APIC: Myths and Truth about Free Cooling. 2019. (In Russ.) Accessed: 04.04.2025. Available from: https://mir-klimata.info/vestnik-ukc-apik-mify-i-pravda-o-frikulinge/
- Fan C, Zou B, Liao Y, Zhou X. Evaluation of energy performance and ecological benefit of free-cooling system for data centers in worldwide climates. Sustainable Cities and Society. 2024;108(3). doi: 10.1016/j.scs.2024.105509
- Baranenko AV, Malinina OS. Development of refrigeration systems based on absorption lithium bromide refrigeration machines. Bulletin of the International Academy of Refrigeration. 2024;1:3–12. (In Russ.) doi: 10.17586/1606-4313-2024-23-1-3-12 EDN: ICQZTI
- Baranenko AV, Bukharin NN, Pekarev VI, et al. Refrigerating machines. St. Petersburg: Politekhnika; 1997. (In Russ.)
- Antipov AV. Ways to improve the energy efficiency of chillers. Milk processing. 2012;147(1):28–33. (In Russ.) EDN: WJLLVF
- Weather in Saint Petersburg — RP5. [internet] Accessed: 04.04.2025. Available from: https://rp5.ru/Погода_в_Санкт-Петербурге
- Bozorgi M, Tasnim SH, Mahmud S. Machine learning-driven hybrid cooling system for enhanced energy efficiency in multi-unit residential buildings. Energy & Buildings. 2025;336:11–28.
- Yang J, Chan KT, Wu X, et al. An analysis on the energy efficiency of air-cooled chillers with water mist system. Energy and Buildings. 2012;55:273–284.
- Selection of compressor and piping of refrigeration machine. (In Russ.) [internet] Accessed: 04.04.2025. Available from: https://ridan.ru/instruments/coolconfig#introduce-cool-config (дата обращения 15.05.2024).
- Maake V, Eckert GYu, Koshpen JL. Textbook on refrigeration engineering. Moscow: Polmann; 1998. (In Russ.)
- Axial fans EC Weiguang. [internet] Accessed: 04.04.2025. Available from: https://weiguang.ru/catalog/r-osevie_ec/
- SANHUA. Micro-channel heat exchangers [internet] Accessed: 04.04.2025. Available from: https://cdn.sanhuaeurope.co.uk/new_content/static/uploads/files/catalogue/mche-pdf.pdf
- Pump selection CNP. [internet] Accessed: 04.04.2025. Available from: https://v3.cnppump.ltd/#/RU/Index (дата обращения 10.05.2024).
- Maslakov V.N. Method for calculating the payback period of natural cooling (free cooling). Refrigeration Technology. 2018;107(2):44–48. (In Russ.) EDN: YVVLIL
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