IDEAS home Printed from https://ideas.repec.org/a/eee/energy/v307y2024ics0360544224023624.html
   My bibliography  Save this article

Structural analysis and optimization of flattened tube gas cooler for transcritical CO2 heat pump systems

Author

Listed:
  • Khoshvaght-Aliabadi, M.
  • Ghodrati, P.
  • Rashidi, M.M.
  • Kang, Y.T.

Abstract

The performance of gas cooler is acknowledged as a vital factor in CO2 heat pump systems. Consequently, its optimal design can significantly impact the overall efficiency, attributed to the pronounced changes in thermophysical properties of CO2 during pseudo-critical operating conditions. This research examines, for the first time, various configurations of flattened tubes (FTs) utilized as the conduit for CO2 flow within the gas cooler. It is established that changing the cross-sectional configuration represents an effective approach for enhancing the thermal performance of the gas cooler, resulting in a significant increase of up to 60 % in heat transfer coefficient. All FTs exhibit superior overall performance across most CO2 cooling conditions compared to circular tubes. Regarding the performance index, the overall improvement can be reached up to 31.8 % and 18.6 % under near-critical and trans-critical conditions, respectively. Furthermore, an optimization is conducted using BBD-RSM for a specific alternating FT due to its potential to enhance the thermal performance not only on the CO2 side but also on the cold side of the gas cooler. The analysis highlights the significant positive influence of the minimum axis on the thermal and hydraulic specifications of gas cooler, followed by the transition length.

Suggested Citation

  • Khoshvaght-Aliabadi, M. & Ghodrati, P. & Rashidi, M.M. & Kang, Y.T., 2024. "Structural analysis and optimization of flattened tube gas cooler for transcritical CO2 heat pump systems," Energy, Elsevier, vol. 307(C).
    • Handle: RePEc:eee:energy:v:307:y:2024:i:c:s0360544224023624
    DOI: 10.1016/j.energy.2024.132588
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0360544224023624
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.energy.2024.132588?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    References listed on IDEAS

    as
    1. Walmsley, Timothy Gordon & Philipp, Matthias & Picón-Núñez, Martín & Meschede, Henning & Taylor, Matthew Thomas & Schlosser, Florian & Atkins, Martin John, 2023. "Hybrid renewable energy utility systems for industrial sites: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 188(C).
    2. Du, Xin & Lv, Zhihao & Yu, Xiao & Cao, Maoguo & Zhou, Jianjun & Ren, Yongxiang & Qiu, Qinggang & Zhu, Xiaojing, 2020. "Heat transfer of supercritical CO2 in vertical round tube: A considerate turbulent Prandtl number modification," Energy, Elsevier, vol. 192(C).
    3. Austin, Brian T. & Sumathy, K., 2011. "Transcritical carbon dioxide heat pump systems: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 15(8), pages 4013-4029.
    4. Zhang, Shijie & Xu, Xiaoxiao & Liu, Chao & Dang, Chaobin, 2020. "A review on application and heat transfer enhancement of supercritical CO2 in low-grade heat conversion," Applied Energy, Elsevier, vol. 269(C).
    5. Zendehboudi, Alireza, 2024. "Optimal discharge pressure and performance characteristics of a transcritical CO2 heat pump system with a tri-partite gas cooler for combined space and water heating," Renewable Energy, Elsevier, vol. 226(C).
    6. Khoshvaght-Aliabadi, Morteza & Ghodrati, Parvaneh & Kang, Yong Tae, 2023. "Optimal combination of converging and diverging minichannels in PCHE as precooler under diverse operating conditions of supercritical CO2," Energy, Elsevier, vol. 272(C).
    7. Khoshvaght-Aliabadi, Morteza & Ghodrati, Parvaneh & Mahian, Omid & Kang, Yong Tae, 2024. "CFD study of rib-enhanced printed circuit heat exchangers for precoolers in solar power plants' supercritical CO2 cycle," Energy, Elsevier, vol. 292(C).
    8. Han, Zengxiao & Guo, Jiangfeng & Huai, Xiulan, 2023. "Theoretical analysis of a novel PCHE with enhanced rib structures for high-power supercritical CO2 Brayton cycle system based on solar energy," Energy, Elsevier, vol. 270(C).
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Khoshvaght-Aliabadi, Morteza & Ghodrati, Parvaneh & Mahian, Omid & Kang, Yong Tae, 2024. "Performance evaluation of non-uniform twisted designs in precooler of supercritical CO2 power cycle," Energy, Elsevier, vol. 292(C).
    2. Khoshvaght-Aliabadi, Morteza & Ghodrati, Parvaneh & Mahian, Omid & Kang, Yong Tae, 2024. "CFD study of rib-enhanced printed circuit heat exchangers for precoolers in solar power plants' supercritical CO2 cycle," Energy, Elsevier, vol. 292(C).
    3. Li, Zhen & Lu, Daogang & Wang, Zhichao & Cao, Qiong, 2023. "Analysis on flow and heat transfer performance of SCO2 in airfoil channels with different fin angles of attack," Energy, Elsevier, vol. 282(C).
    4. Feng, Jiaqi & Wang, Junpeng & Chen, Zhentao & Li, Yuzhe & Luo, Zhengyuan & Bai, Bofeng, 2024. "Performance advantages of transcritical CO2 cycle in the marine environment," Energy, Elsevier, vol. 305(C).
    5. Fatong Jia & Dazhang Yang & Jing Xie, 2021. "Numerical Investigation on the Performance of Two-Throat Nozzle Ejectors with Different Mixing Chamber Structural Parameters," Energies, MDPI, vol. 14(21), pages 1-16, October.
    6. Andrei David & Brian Vad Mathiesen & Helge Averfalk & Sven Werner & Henrik Lund, 2017. "Heat Roadmap Europe: Large-Scale Electric Heat Pumps in District Heating Systems," Energies, MDPI, vol. 10(4), pages 1-18, April.
    7. Ignacio López Paniagua & Ángel Jiménez Álvaro & Javier Rodríguez Martín & Celina González Fernández & Rafael Nieto Carlier, 2019. "Comparison of Transcritical CO 2 and Conventional Refrigerant Heat Pump Water Heaters for Domestic Applications," Energies, MDPI, vol. 12(3), pages 1-17, February.
    8. Xiaojing Zhu & Ruizeng Zhang & Xiao Yu & Maoguo Cao & Yongxiang Ren, 2020. "Numerical Study on the Gravity Effect on Heat Transfer of Supercritical CO 2 in a Vertical Tube," Energies, MDPI, vol. 13(13), pages 1-20, July.
    9. Noor Muhammad Abd Rahman & Lim Chin Haw & Ahmad Fazlizan, 2021. "A Literature Review of Naturally Ventilated Public Hospital Wards in Tropical Climate Countries for Thermal Comfort and Energy Saving Improvements," Energies, MDPI, vol. 14(2), pages 1-22, January.
    10. Guo, Yabin & Li, Yuduo & Li, Weilin, 2023. "On-site fault experiment and diagnosis research of the carbon dioxide transcritical heat pump system for energy saving," Energy, Elsevier, vol. 274(C).
    11. Moreno-Leiva, Simón & Haas, Jannik & Nowak, Wolfgang & Kracht, Willy & Eltrop, Ludger & Breyer, Christian, 2024. "Flexible copper: Exploring capacity-based energy demand flexibility in the industry," Energy, Elsevier, vol. 305(C).
    12. Adamson, Keri-Marie & Walmsley, Timothy Gordon & Carson, James K. & Chen, Qun & Schlosser, Florian & Kong, Lana & Cleland, Donald John, 2022. "High-temperature and transcritical heat pump cycles and advancements: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 167(C).
    13. Jianfei Tong & Lingbo Zhu & Yiping Lu & Tianjiao Liang & Youlian Lu & Songlin Wang & Chaoju Yu & Shikui Dong & Heping Tan, 2021. "Heat Transfer Analysis in Supercritical Hydrogen of Decoupled Poisoned Hydrogen Moderator with Non-Uniform Heat Source of Chinese Spallation Neutron Source," Energies, MDPI, vol. 14(15), pages 1-17, July.
    14. Yang, Zimu & Jiang, Hongsheng & Zhuge, Weilin & Qian, Yuping & Zhang, Yangjun, 2024. "Design of a partial discharge shrouded impeller for the centrifugal compressor of supercritical carbon dioxide power cycles," Energy, Elsevier, vol. 307(C).
    15. Xinxin Liu & Shuoshuo Li & Liang Liu & Chao He & Zhuang Sun & Faruk Özdemir & Muhammad Aziz & Po-Chih Kuo, 2022. "Research Progress on Convective Heat Transfer Characteristics of Supercritical Fluids in Curved Tube," Energies, MDPI, vol. 15(22), pages 1-23, November.
    16. Yu, Binbin & Yang, Jingye & Wang, Dandong & Shi, Junye & Chen, Jiangping, 2019. "An updated review of recent advances on modified technologies in transcritical CO2 refrigeration cycle," Energy, Elsevier, vol. 189(C).
    17. J. M. Belman-Flores & V. H. Rangel-Hernández & V. Pérez-García & A. Zaleta-Aguilar & Qingping Fang & D. Méndez-Méndez, 2020. "An Advanced Exergoeconomic Comparison of CO 2 -Based Transcritical Refrigeration Cycles," Energies, MDPI, vol. 13(23), pages 1-15, December.
    18. Wakui, Tetsuya & Kawayoshi, Hiroki & Yokoyama, Ryohei & Aki, Hirohisa, 2016. "Operation management of residential energy-supplying networks based on optimization approaches," Applied Energy, Elsevier, vol. 183(C), pages 340-357.
    19. Gao, Yuan & Hu, Zehuan & Shi, Shanrui & Chen, Wei-An & Liu, Mingzhe, 2024. "Adversarial discriminative domain adaptation for solar radiation prediction: A cross-regional study for zero-label transfer learning in Japan," Applied Energy, Elsevier, vol. 359(C).
    20. Zhu, Lin & Yu, Jianlin & Zhou, Mengliu & Wang, Xiao, 2014. "Performance analysis of a novel dual-nozzle ejector enhanced cycle for solar assisted air-source heat pump systems," Renewable Energy, Elsevier, vol. 63(C), pages 735-740.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:eee:energy:v:307:y:2024:i:c:s0360544224023624. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Catherine Liu (email available below). General contact details of provider: http://www.journals.elsevier.com/energy .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.