IDEAS home Printed from https://ideas.repec.org/a/gam/jeners/v14y2021i6p1754-d521749.html
   My bibliography  Save this article

Pressure Exchanger for Energy Recovery in a Trans-Critical CO 2 Refrigeration System

Author

Listed:
  • Ahmed Elatar

    (Oak Ridge National Laboratory, Oak Ridge, TN 37830, USA)

  • Brian Fricke

    (Oak Ridge National Laboratory, Oak Ridge, TN 37830, USA)

  • Vishaldeep Sharma

    (Oak Ridge National Laboratory, Oak Ridge, TN 37830, USA)

  • Kashif Nawaz

    (Oak Ridge National Laboratory, Oak Ridge, TN 37830, USA)

Abstract

Trans-critical CO 2 vapor compression (VC) refrigeration cycles require a high compression ratio, which is associated with high expansion losses. To recover these expansion losses, a pressure exchange process between the low- and high-pressure sides of the VC cycle is proposed and examined in this study. The proposed pressure exchange system is an open type constant volume process where the high- and low-pressure flows mix inside the system. This prototype is inspired by the pressure exchangers used in reverse-osmosis (RO) desalination systems. In this system, a 2D model was generated and modeled using the computational fluid dynamics (CFD) technique. The numerical model ignored any losses due to leakage or hydraulic friction and the process is considered adiabatic. For the modeling, it was assumed that the inlet conditions for the two pressure exchanger flows are similar to the flow conditions at the evaporator and gas cooler outlets in a VC cycle. Two parameters are examined to test the validity of the system and understand their effect on the performance, including the inlet flow rate represented by the inlet velocity and the process time represented by the speed of rotation. A total of nine cases were simulated and analyzed in this study.

Suggested Citation

  • Ahmed Elatar & Brian Fricke & Vishaldeep Sharma & Kashif Nawaz, 2021. "Pressure Exchanger for Energy Recovery in a Trans-Critical CO 2 Refrigeration System," Energies, MDPI, vol. 14(6), pages 1-15, March.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:6:p:1754-:d:521749
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1996-1073/14/6/1754/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/1996-1073/14/6/1754/
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Besagni, Giorgio & Mereu, Riccardo & Inzoli, Fabio, 2016. "Ejector refrigeration: A comprehensive review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 53(C), pages 373-407.
    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. Chen, Guangming & Ierin, Volodymyr & Volovyk, Oleksii & Shestopalov, Kostyantyn, 2019. "An improved cascade mechanical compression–ejector cooling cycle," Energy, Elsevier, vol. 170(C), pages 459-470.
    2. Zhu, Jingwei & Botticella, Francesco & Elbel, Stefan, 2018. "Experimental investigation and theoretical analysis of oil circulation rates in ejector cooling cycles," Energy, Elsevier, vol. 157(C), pages 718-733.
    3. Bi, Rongshan & Chen, Chen & Li, Jiansong & Tan, Xinshun & Xiang, Shuguang, 2018. "Research on the CFD numerical simulation of flash boiling atomization," Energy, Elsevier, vol. 165(PA), pages 768-781.
    4. Ramesh, A.S. & Sekhar, S. Joseph, 2018. "Experimental and numerical investigations on the effect of suction chamber angle and nozzle exit position of a steam-jet ejector," Energy, Elsevier, vol. 164(C), pages 1097-1113.
    5. Valerie Eveloy & Dereje S. Ayou, 2019. "Sustainable District Cooling Systems: Status, Challenges, and Future Opportunities, with Emphasis on Cooling-Dominated Regions," Energies, MDPI, vol. 12(2), pages 1-64, January.
    6. Han, Qingyang & Liu, Changchao & Xue, Haoyuan & Zhang, Hailun & Sun, Wenhui & Sun, Wenxu & Jia, Lei, 2023. "Working condition expansion and performance optimization of two-stage ejector based on optimal switching strategy," Energy, Elsevier, vol. 282(C).
    7. Zhang, Zhenying & Wang, Jiayu & Feng, Xu & Chang, Li & Chen, Yanhua & Wang, Xingguo, 2018. "The solutions to electric vehicle air conditioning systems: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 91(C), pages 443-463.
    8. Mohanraj, M. & Belyayev, Ye. & Jayaraj, S. & Kaltayev, A., 2018. "Research and developments on solar assisted compression heat pump systems – A comprehensive review (Part A: Modeling and modifications)," Renewable and Sustainable Energy Reviews, Elsevier, vol. 83(C), pages 90-123.
    9. Hu, Bin & Wu, Di & Wang, R.Z., 2018. "Water vapor compression and its various applications," Renewable and Sustainable Energy Reviews, Elsevier, vol. 98(C), pages 92-107.
    10. Zou, Lingeng & Liu, Ye & Yu, Jianlin, 2023. "Energy, exergy and economic evaluation of a solar enhanced ejector expansion heat pump cycle," Renewable Energy, Elsevier, vol. 217(C).
    11. Tashtoush, Bourhan M. & Al-Nimr, Moh'd A. & Khasawneh, Mohammad A., 2017. "Investigation of the use of nano-refrigerants to enhance the performance of an ejector refrigeration system," Applied Energy, Elsevier, vol. 206(C), pages 1446-1463.
    12. Sierra-Pallares, José & García del Valle, Javier & Paniagua, Jorge Muñoz & García, Javier & Méndez-Bueno, César & Castro, Francisco, 2018. "Shape optimization of a long-tapered R134a ejector mixing chamber," Energy, Elsevier, vol. 165(PA), pages 422-438.
    13. Karthick, S.K. & Rao, Srisha M.V. & Jagadeesh, G. & Reddy, K.P.J., 2018. "Experimental parametric studies on the performance and mixing characteristics of a low area ratio rectangular supersonic gaseous ejector by varying the secondary flow rate," Energy, Elsevier, vol. 161(C), pages 832-845.
    14. Li, Xiaoqiong & Wang, Xiaoyan & Zhang, Yufeng & Fang, Lei & Deng, Na & Zhang, Yan & Jin, Zhendong & Yu, Xiaohui & Yao, Sheng, 2020. "Experimental and economic analysis with a novel ejector-based detection system for thermodynamic measurement of compressors," Applied Energy, Elsevier, vol. 261(C).
    15. Zhao, Hongxia & Yuan, Tianpeng & Gao, Jia & Wang, Xinli & Yan, Jia, 2019. "Conventional and advanced exergy analysis of parallel and series compression-ejection hybrid refrigeration system for a household refrigerator with R290," Energy, Elsevier, vol. 166(C), pages 845-861.
    16. Knut Emil Ringstad & Krzysztof Banasiak & Åsmund Ervik & Armin Hafner, 2022. "Swirl-Bypass Nozzle for CO 2 Two-Phase Ejectors: Numerical Design Exploration," Energies, MDPI, vol. 15(18), pages 1-30, September.
    17. Tang, Yongzhi & Liu, Zhongliang & Li, Yanxia & Shi, Can & Lv, Chen, 2019. "A combined pressure regulation technology with multi-optimization of the entrainment passage for performance improvement of the steam ejector in MED-TVC desalination system," Energy, Elsevier, vol. 175(C), pages 46-57.
    18. Anas F A Elbarghthi & Saleh Mohamed & Van Vu Nguyen & Vaclav Dvorak, 2020. "CFD Based Design for Ejector Cooling System Using HFOS (1234ze(E) and 1234yf)," Energies, MDPI, vol. 13(6), pages 1-19, March.
    19. Valerie Eveloy & Yusra Alkendi, 2021. "Thermodynamic Performance Investigation of a Small-Scale Solar Compression-Assisted Multi-Ejector Indoor Air Conditioning System for Hot Climate Conditions," Energies, MDPI, vol. 14(14), pages 1-31, July.
    20. Wang, Jiong & Xu, Shuangjie & Cheng, Huaiyu & Ji, Bin & Zhang, Junqiang & Long, Xinping, 2018. "Experimental investigation of cavity length pulsation characteristics of jet pumps during limited operation stage," Energy, Elsevier, vol. 163(C), pages 61-73.

    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:gam:jeners:v:14:y:2021:i:6:p:1754-:d:521749. 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: MDPI Indexing Manager (email available below). General contact details of provider: https://www.mdpi.com .

    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.