IDEAS home Printed from https://ideas.repec.org/a/gam/jeners/v13y2019i1p4-d299165.html
   My bibliography  Save this article

Thermodynamic Analysis of a CO 2 Refrigeration Cycle with Integrated Mechanical Subcooling

Author

Listed:
  • Laura Nebot-Andrés

    (Thermal Engineering Group, Mechanical Engineering and Construction Department, Jaume I University, 12071 Castellón de la Plana, Spain)

  • Daniel Calleja-Anta

    (Thermal Engineering Group, Mechanical Engineering and Construction Department, Jaume I University, 12071 Castellón de la Plana, Spain)

  • Daniel Sánchez

    (Thermal Engineering Group, Mechanical Engineering and Construction Department, Jaume I University, 12071 Castellón de la Plana, Spain)

  • Ramón Cabello

    (Thermal Engineering Group, Mechanical Engineering and Construction Department, Jaume I University, 12071 Castellón de la Plana, Spain)

  • Rodrigo Llopis

    (Thermal Engineering Group, Mechanical Engineering and Construction Department, Jaume I University, 12071 Castellón de la Plana, Spain)

Abstract

Different alternatives are being studied nowadays in order to enhance the behavior of transcritical CO 2 refrigeration plants. Among the most studied options, subcooling is one of the most analyzed methods in the last years, increasing cooling capacity and Coefficient Of Performance (COP), especially at high hot sink temperatures. A new cycle, called integrated mechanical subcooling cycle, has been developed, as a total-CO 2 solution, to provide the subcooling in CO 2 transcritical refrigeration cycles. It corresponds to a promising solution from the point of view of energy efficiency. The purpose of this work is to present, for the first time, thermodynamic analysis of a CO 2 refrigeration cycle with integrated mechanical subcooling cycle from first and second law approaches. Using simplified models of the components, the optimum operating conditions, optimum gas-cooler pressure, and subcooling degree are determined in order to obtain the maximum COP. The main energy parameters of the system were analyzed for different evaporation levels and heat rejection temperatures. The exergy destruction was analyzed for each component, identifying the elements of the system that introduce more irreversibilities. It has been concluded that the new cycle could offer COP improvements from 11.7% to 15.9% in relation to single-stage cycles with internal heat exchanger (IHX) at 35 °C ambient temperature.

Suggested Citation

  • Laura Nebot-Andrés & Daniel Calleja-Anta & Daniel Sánchez & Ramón Cabello & Rodrigo Llopis, 2019. "Thermodynamic Analysis of a CO 2 Refrigeration Cycle with Integrated Mechanical Subcooling," Energies, MDPI, vol. 13(1), pages 1-17, December.
    • Handle: RePEc:gam:jeners:v:13:y:2019:i:1:p:4-:d:299165
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1996-1073/13/1/4/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/1996-1073/13/1/4/
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Purohit, Nilesh & Sharma, Vishaldeep & Sawalha, Samer & Fricke, Brian & Llopis, Rodrigo & Dasgupta, Mani Sankar, 2018. "Integrated supermarket refrigeration for very high ambient temperature," Energy, Elsevier, vol. 165(PA), pages 572-590.
    2. Dai, Baomin & Liu, Shengchun & Li, Hailong & Sun, Zhili & Song, Mengjie & Yang, Qianru & Ma, Yitai, 2018. "Energetic performance of transcritical CO2 refrigeration cycles with mechanical subcooling using zeotropic mixture as refrigerant," Energy, Elsevier, vol. 150(C), pages 205-221.
    3. Paride Gullo & Armin Hafner & Krzysztof Banasiak & Silvia Minetto & Ekaterini E. Kriezi, 2019. "Multi-Ejector Concept: A Comprehensive Review on its Latest Technological Developments," Energies, MDPI, vol. 12(3), pages 1-29, January.
    4. Chesi, Andrea & Esposito, Fabio & Ferrara, Giovanni & Ferrari, Lorenzo, 2014. "Experimental analysis of R744 parallel compression cycle," Applied Energy, Elsevier, vol. 135(C), pages 274-285.
    Full references (including those not matched with items on IDEAS)

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Michał Sobieraj, 2020. "Experimental Investigation of the Effect of a Recuperative Heat Exchanger and Throttles Opening on a CO 2 /Isobutane Autocascade Refrigeration System," Energies, MDPI, vol. 13(20), pages 1-15, October.

    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. Artur Bieniek & Jan Kuchmacz & Karol Sztekler & Lukasz Mika & Ewelina Radomska, 2021. "A New Method of Regulating the Cooling Capacity of a Cooling System with CO 2," Energies, MDPI, vol. 14(7), pages 1-18, March.
    2. Lawrence Drojetzki & Mieczyslaw Porowski, 2023. "Outdoor Climate as a Decision Variable in the Selection of an Energy-Optimal Refrigeration System Based on Natural Refrigerants for a Supermarket," Energies, MDPI, vol. 16(8), pages 1-24, April.
    3. Michal Haida & Rafal Fingas & Wojciech Szwajnoch & Jacek Smolka & Michal Palacz & Jakub Bodys & Andrzej J. Nowak, 2019. "An Object-Oriented R744 Two-Phase Ejector Reduced-Order Model for Dynamic Simulations," Energies, MDPI, vol. 12(7), pages 1-24, April.
    4. J. Catalán-Gil & L. Nebot-Andrés & D. Sánchez & R. Llopis & R. Cabello & D. Calleja-Anta, 2020. "Improvements in CO 2 Booster Architectures with Different Economizer Arrangements," Energies, MDPI, vol. 13(5), pages 1-29, March.
    5. Liu, Shengchun & Lu, Fenping & Dai, Baomin & Nian, Victor & Li, Hailong & Qi, Haifeng & Li, Jiayu, 2019. "Performance analysis of two-stage compression transcritical CO2 refrigeration system with R290 mechanical subcooling unit," Energy, Elsevier, vol. 189(C).
    6. Paolo Artuso & Giacomo Tosato & Antonio Rossetti & Sergio Marinetti & Armin Hafner & Krzysztof Banasiak & Silvia Minetto, 2021. "Dynamic Modelling and Validation of an Air-to-Water Reversible R744 Heat Pump for High Energy Demand Buildings," Energies, MDPI, vol. 14(24), pages 1-25, December.
    7. Li, Jiaojiao & Zoghi, Mohammad & Zhao, Linfeng, 2022. "Thermo-economic assessment and optimization of a geothermal-driven tri-generation system for power, cooling, and hydrogen production," Energy, Elsevier, vol. 244(PB).
    8. Ángel Á. Pardiñas & Michael Jokiel & Christian Schlemminger & Håkon Selvnes & Armin Hafner, 2021. "Modeling of a CO 2 -Based Integrated Refrigeration System for Supermarkets," Energies, MDPI, vol. 14(21), pages 1-21, October.
    9. Daniel Sánchez & Jesús Catalán-Gil & Ramón Cabello & Daniel Calleja-Anta & Rodrigo Llopis & Laura Nebot-Andrés, 2020. "Experimental Analysis and Optimization of an R744 Transcritical Cycle Working with a Mechanical Subcooling System," Energies, MDPI, vol. 13(12), pages 1-27, June.
    10. 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.
    11. Haida, Michal & Smolka, Jacek & Hafner, Armin & Ostrowski, Ziemowit & Palacz, Michal & Nowak, Andrzej J. & Banasiak, Krzysztof, 2018. "System model derivation of the CO2 two-phase ejector based on the CFD-based reduced-order model," Energy, Elsevier, vol. 144(C), pages 941-956.
    12. Li, Shengyu & Yan, Jia & Liu, Zhan & Yao, Yong & Li, Xianbi & Wen, Na & Zou, Guorong, 2019. "Optimization on crucial ejector geometries in a multi-evaporator refrigeration system for tropical region refrigerated trucks," Energy, Elsevier, vol. 189(C).
    13. Lixing Zheng & Yiyan Zhang & Lifen Hao & Haojie Lian & Jianqiang Deng & Wei Lu, 2022. "Modelling, Optimization, and Experimental Studies of Refrigeration CO 2 Ejectors: A Review," Mathematics, MDPI, vol. 10(22), pages 1-23, November.
    14. Yulong Song & Haidan Wang & Feng Cao, 2020. "Investigation of the Impact Factors on the Optimal Intermediate Temperature in a Dual Transcritical CO 2 System with a Dedicated Transcritical CO 2 Subcooler," Energies, MDPI, vol. 13(2), pages 1-23, January.
    15. Yikai Wang & Yifan He & Yulong Song & Xiang Yin & Feng Cao & Xiaolin Wang, 2021. "Energy and Exergy Analysis of the Air Source Transcritical CO 2 Heat Pump Water Heater Using CO 2 -Based Mixture as Working Fluid," Energies, MDPI, vol. 14(15), pages 1-18, July.
    16. Besagni, Giorgio, 2019. "Ejectors on the cutting edge: The past, the present and the perspective," Energy, Elsevier, vol. 170(C), pages 998-1003.
    17. Yu, Binbin & Yang, Jingye & Wang, Dandong & Shi, Junye & Guo, Zhikai & Chen, Jiangping, 2019. "Experimental energetic analysis of CO2/R41 blends in automobile air-conditioning and heat pump systems," Applied Energy, Elsevier, vol. 239(C), pages 1142-1153.
    18. Xu, Weicong & Zhao, Ruikai & Deng, Shuai & Zhao, Li & Mao, Samuel S., 2021. "Is zeotropic working fluid a promising option for organic Rankine cycle: A quantitative evaluation based on literature data," Renewable and Sustainable Energy Reviews, Elsevier, vol. 148(C).
    19. Peris Pérez, Bernardo & Ávila Gutiérrez, Miguel & Expósito Carrillo, José Antonio & Salmerón Lissén, José Manuel, 2022. "Performance of Solar-driven Ejector Refrigeration System (SERS) as pre-cooling system for air handling units in warm climates," Energy, Elsevier, vol. 238(PA).
    20. Benlin Shi & Muqing Chen & Weikai Chi & Qichao Yang & Guangbin Liu & Yuanyang Zhao & Liansheng Li, 2022. "Effects of Internal Heat Exchanger on Two-Stage Compression Trans-Critical CO 2 Refrigeration Cycle Combined with Expander and Intercooling," Energies, MDPI, vol. 16(1), pages 1-16, December.

    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:13:y:2019:i:1:p:4-:d:299165. 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.