IDEAS home Printed from https://ideas.repec.org/a/eee/energy/v45y2012i1p829-839.html
   My bibliography  Save this article

Investigation on performance of variable geometry ejectors for CO2 refrigeration cycles

Author

Listed:
  • Liu, Fang
  • Groll, Eckhard A.
  • Li, Daqing

Abstract

This paper presents a comprehensive study on a controllable two-phase flow ejector component efficiencies and ejector performances in transcritical CO2 refrigeration cycles. A two-phase flow ejector expansion model was developed and experimentally validated. A method of determining the efficiencies of ejector motive nozzle, suction nozzle, and mixing section based on the measured performance data external to the ejector was developed. It was found that motive nozzle efficiency decreases as ejector throat area decreases, and that suction nozzle efficiency is affected by outdoor air temperature. Empirical correlations of ejector component efficiencies were reduced. Parametric modeling study results show that the operation of an ejector reaches its optimum performance at ejector throat diameter approximately of 2.3 mm, mixing section constant-area diameter approximately of 3.5 mm, and diffuser diameter ratio a little bit larger than 2. Higher efficiencies of motive nozzle and suction nozzle as well as higher motive nozzle inlet pressure result in better ejector performances in certain ranges of motive nozzle throat diameter and mixing section constant-area diameter.

Suggested Citation

  • Liu, Fang & Groll, Eckhard A. & Li, Daqing, 2012. "Investigation on performance of variable geometry ejectors for CO2 refrigeration cycles," Energy, Elsevier, vol. 45(1), pages 829-839.
    • Handle: RePEc:eee:energy:v:45:y:2012:i:1:p:829-839
    DOI: 10.1016/j.energy.2012.07.008
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0360544212005385
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.energy.2012.07.008?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. Sarkar, Jahar, 2008. "Optimization of ejector-expansion transcritical CO2 heat pump cycle," Energy, Elsevier, vol. 33(9), pages 1399-1406.
    2. Sun, Da-Wen, 1996. "Variable geometry ejectors and their applications in ejector refrigeration systems," Energy, Elsevier, vol. 21(10), pages 919-929.
    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. Mastrowski, Mikolaj & Smolka, Jacek & Hafner, Armin & Haida, Michal & Palacz, Michal & Banasiak, Krzysztof, 2019. "Experimental study of the heat transfer problem in expansion devices in CO2 refrigeration systems," Energy, Elsevier, vol. 173(C), pages 586-597.
    2. 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.
    3. Besagni, Giorgio & Mereu, Riccardo & Inzoli, Fabio, 2016. "Ejector refrigeration: A comprehensive review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 53(C), pages 373-407.
    4. Zhu, Yinhai & Jiang, Peixue, 2014. "Bypass ejector with an annular cavity in the nozzle wall to increase the entrainment: Experimental and numerical validation," Energy, Elsevier, vol. 68(C), pages 174-181.
    5. Lin, Chen & Cai, Wenjian & Li, Yanzhong & Yan, Jia & Hu, Yu, 2012. "The characteristics of pressure recovery in an adjustable ejector multi-evaporator refrigeration system," Energy, Elsevier, vol. 46(1), pages 148-155.
    6. Haida, Michal & Smolka, Jacek & Hafner, Armin & Ostrowski, Ziemowit & Palacz, Michał & Madsen, Kenneth B. & Försterling, Sven & Nowak, Andrzej J. & Banasiak, Krzysztof, 2018. "Performance mapping of the R744 ejectors for refrigeration and air conditioning supermarket application: A hybrid reduced-order model," Energy, Elsevier, vol. 153(C), pages 933-948.
    7. Palacz, Michal & Haida, Michal & Smolka, Jacek & Plis, Marcin & Nowak, Andrzej J. & Banasiak, Krzysztof, 2018. "A gas ejector for CO2 supercritical cycles," Energy, Elsevier, vol. 163(C), pages 1207-1216.
    8. Jeon, Yongseok & Jung, Jongho & Kim, Dongwoo & Kim, Sunjae & Kim, Yongchan, 2017. "Effects of ejector geometries on performance of ejector-expansion R410A air conditioner considering cooling seasonal performance factor," Applied Energy, Elsevier, vol. 205(C), pages 761-768.
    9. Jeon, Yongseok & Kim, Dongwoo & Jung, Jongho & Jang, Dong Soo & Kim, Yongchan, 2018. "Comparative performance evaluation of conventional and condenser outlet split ejector-based domestic refrigerator-freezers using R600a," Energy, Elsevier, vol. 161(C), pages 1085-1095.
    10. Wang, Xiao & Yu, Jianlin & Zhou, Mengliu & Lv, Xiaolong, 2014. "Comparative studies of ejector-expansion vapor compression refrigeration cycles for applications in domestic refrigerator-freezers," Energy, Elsevier, vol. 70(C), pages 635-642.
    11. Yan, Gang & Bai, Tao & Yu, Jianlin, 2016. "Thermodynamic analysis on a modified ejector expansion refrigeration cycle with zeotropic mixture (R290/R600a) for freezers," Energy, Elsevier, vol. 95(C), pages 144-154.
    12. Li, Fenglei & Wu, Changzhi & Wang, Xiangyu & Tian, Qi & Teo, Kok Lay, 2016. "Sparsity-enhanced optimization for ejector performance prediction," Energy, Elsevier, vol. 113(C), pages 25-34.
    13. Bai, Tao & Yan, Gang & Yu, Jianlin, 2015. "Thermodynamics analysis of a modified dual-evaporator CO2 transcritical refrigeration cycle with two-stage ejector," Energy, Elsevier, vol. 84(C), pages 325-335.
    14. Zhang, Ying & Deng, Shuai & Ni, Jiaxin & Zhao, Li & Yang, Xingyang & Li, Minxia, 2017. "A literature research on feasible application of mixed working fluid in flexible distributed energy system," Energy, Elsevier, vol. 137(C), pages 377-390.
    15. Hongzeng Ji & Jinchen Pei & Jingyang Cai & Chen Ding & Fen Guo & Yichun Wang, 2023. "Review of Recent Advances in Transcritical CO 2 Heat Pump and Refrigeration Cycles and Their Development in the Vehicle Field," Energies, MDPI, vol. 16(10), pages 1-21, May.
    16. Bodys, Jakub & Smolka, Jacek & Palacz, Michal & Haida, Michal & Banasiak, Krzysztof & Nowak, Andrzej J. & Hafner, Armin, 2016. "Performance of fixed geometry ejectors with a swirl motion installed in a multi-ejector module of a CO2 refrigeration system," Energy, Elsevier, vol. 117(P2), pages 620-631.
    17. Shan, Yong & Zhang, Jing-zhou & Ren, Xiao-wen, 2018. "Numerical modeling on pumping performance of piccolo-tube multi-nozzles supersonic ejector in an oil radiator passage," Energy, Elsevier, vol. 158(C), pages 216-227.
    18. Wang, Xiao & Yu, Jianlin, 2015. "An experimental investigation on a novel ejector enhanced refrigeration cycle applied in the domestic refrigerator-freezer," Energy, Elsevier, vol. 93(P1), pages 202-209.
    19. Jesús Catalán-Gil & Daniel Sánchez & Rodrigo Llopis & Laura Nebot-Andrés & Ramón Cabello, 2018. "Energy Evaluation of Multiple Stage Commercial Refrigeration Architectures Adapted to F-Gas Regulation," Energies, MDPI, vol. 11(7), pages 1-31, July.
    20. Shizhen Li & Wei Li & Yanjun Liu & Chen Ji & Jingzhi Zhang, 2020. "Experimental Investigation of the Performance and Spray Characteristics of a Supersonic Two-Phase Flow Ejector with Different Structures," Energies, MDPI, vol. 13(5), pages 1-17, March.
    21. 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.

    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. Mastrowski, Mikolaj & Smolka, Jacek & Hafner, Armin & Haida, Michal & Palacz, Michal & Banasiak, Krzysztof, 2019. "Experimental study of the heat transfer problem in expansion devices in CO2 refrigeration systems," Energy, Elsevier, vol. 173(C), pages 586-597.
    2. Sun, Fangtian & Fu, Lin & Sun, Jian & Zhang, Shigang, 2014. "A new waste heat district heating system with combined heat and power (CHP) based on ejector heat exchangers and absorption heat pumps," Energy, Elsevier, vol. 69(C), pages 516-524.
    3. Xu, Xiao Xiao & Liu, Chao & Fu, Xiang & Gao, Hong & Li, Yourong, 2015. "Energy and exergy analyses of a modified combined cooling, heating, and power system using supercritical CO2," Energy, Elsevier, vol. 86(C), pages 414-422.
    4. Varga, Szabolcs & Oliveira, Armando C. & Palmero-Marrero, Anna & Vrba, Jakub, 2017. "Preliminary experimental results with a solar driven ejector air conditioner in Portugal," Renewable Energy, Elsevier, vol. 109(C), pages 83-92.
    5. 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.
    6. Sözen, Adnan & Yücesu, H. Serdar, 2007. "Performance improvement of absorption heat transformer," Renewable Energy, Elsevier, vol. 32(2), pages 267-284.
    7. Yari, Mortaza & Mahmoudi, S.M.S., 2011. "Thermodynamic analysis and optimization of novel ejector-expansion TRCC (transcritical CO2) cascade refrigeration cycles (Novel transcritical CO2 cycle)," Energy, Elsevier, vol. 36(12), pages 6839-6850.
    8. Meyer, A.J. & Harms, T.M. & Dobson, R.T., 2009. "Steam jet ejector cooling powered by waste or solar heat," Renewable Energy, Elsevier, vol. 34(1), pages 297-306.
    9. Bodys, Jakub & Smolka, Jacek & Palacz, Michal & Haida, Michal & Banasiak, Krzysztof & Nowak, Andrzej J. & Hafner, Armin, 2016. "Performance of fixed geometry ejectors with a swirl motion installed in a multi-ejector module of a CO2 refrigeration system," Energy, Elsevier, vol. 117(P2), pages 620-631.
    10. Wang, Lei & Liu, Jiapeng & Zou, Tao & Du, Jingwei & Jia, Fengze, 2018. "Auto-tuning ejector for refrigeration system," Energy, Elsevier, vol. 161(C), pages 536-543.
    11. Li, Huashan & Cao, Fei & Bu, Xianbiao & Wang, Lingbao & Wang, Xianlong, 2014. "Performance characteristics of R1234yf ejector-expansion refrigeration cycle," Applied Energy, Elsevier, vol. 121(C), pages 96-103.
    12. Sahar Taslimi Taleghani & Mikhail Sorin & Sébastien Poncet, 2019. "Analysis and Optimization of Exergy Flows inside a Transcritical CO 2 Ejector for Refrigeration, Air Conditioning and Heat Pump Cycles," Energies, MDPI, vol. 12(9), pages 1-15, May.
    13. He, S. & Li, Y. & Wang, R.Z., 2009. "Progress of mathematical modeling on ejectors," Renewable and Sustainable Energy Reviews, Elsevier, vol. 13(8), pages 1760-1780, October.
    14. 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.
    15. Xu, Xiao Xiao & Chen, Guang Ming & Tang, Li Ming & Zhu, Zhi Jiang, 2012. "Experimental investigation on performance of transcritical CO2 heat pump system with ejector under optimum high-side pressure," Energy, Elsevier, vol. 44(1), pages 870-877.
    16. Anand, S. & Gupta, A. & Tyagi, S.K., 2015. "Solar cooling systems for climate change mitigation: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 41(C), pages 143-161.
    17. Aprea, Ciro & Maiorino, Angelo, 2009. "Heat rejection pressure optimization for a carbon dioxide split system: An experimental study," Applied Energy, Elsevier, vol. 86(11), pages 2373-2380, November.
    18. Besagni, Giorgio & Mereu, Riccardo & Inzoli, Fabio, 2016. "Ejector refrigeration: A comprehensive review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 53(C), pages 373-407.
    19. Sarkar, Jahar, 2012. "Ejector enhanced vapor compression refrigeration and heat pump systems—A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 16(9), pages 6647-6659.
    20. Zeng, Min-Qiang & Zheng, Qiu-Yun & Zhang, Xue-Lai & Mo, Fan-Yang & Zhang, Xin-Rong, 2022. "Thermodynamic analysis of a novel multi-target temperature transcritical CO2 ejector-expansion refrigeration cycle with vapor-injection," Energy, Elsevier, vol. 259(C).

    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:45:y:2012:i:1:p:829-839. 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.