IDEAS home Printed from https://ideas.repec.org/a/eee/energy/v68y2014icp174-181.html
   My bibliography  Save this article

Bypass ejector with an annular cavity in the nozzle wall to increase the entrainment: Experimental and numerical validation

Author

Listed:
  • Zhu, Yinhai
  • Jiang, Peixue

Abstract

A bypass ejector geometry with an annular cavity in the nozzle wall was tested for various operating conditions to evaluate the entrainment performance. The results were compared with those of a conventional ejector. The data shows that the primary mass flow rate in the bypass ejector is always about 20% less than that in the conventional ejector. The results show that the bypass ejector is better than the conventional ejector at relatively high primary and secondary flow pressures with a maximum improvement in the entrainment performance of 31.5%. The bypass ejector has better entrainment performance in the critical mode. Since most ejectors operate in the critical mode, this ejector will have many applications requiring more entrainment.

Suggested Citation

  • 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.
  • Handle: RePEc:eee:energy:v:68:y:2014:i:c:p:174-181
    DOI: 10.1016/j.energy.2014.02.046
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0360544214001807
    Download Restriction: Full text for ScienceDirect subscribers only

    File URL: https://libkey.io/10.1016/j.energy.2014.02.046?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. 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.
    2. Li, Xinguo & Zhang, Qilin & Li, Xiajie, 2013. "A Kalina cycle with ejector," Energy, Elsevier, vol. 54(C), pages 212-219.
    3. Chua, K.J. & Chou, S.K. & Yang, W.M., 2010. "Advances in heat pump systems: A review," Applied Energy, Elsevier, vol. 87(12), pages 3611-3624, December.
    4. Sun, Da-Wen, 1996. "Variable geometry ejectors and their applications in ejector refrigeration systems," Energy, Elsevier, vol. 21(10), pages 919-929.
    5. Yari, Mortaza & Mehr, A.S. & Mahmoudi, S.M.S., 2013. "Thermodynamic analysis and optimization of a novel dual-evaporator system powered by electrical and solar energy sources," Energy, Elsevier, vol. 61(C), pages 646-656.
    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. Besagni, Giorgio & Mereu, Riccardo & Inzoli, Fabio, 2016. "Ejector refrigeration: A comprehensive review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 53(C), pages 373-407.
    2. Tang, Yongzhi & Liu, Zhongliang & Shi, Can & Li, Yanxia, 2018. "A novel steam ejector with pressure regulation to optimize the entrained flow passage for performance improvement in MED-TVC desalination system," Energy, Elsevier, vol. 158(C), pages 305-316.
    3. 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.
    4. 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.
    5. Chen, Jianyong & Li, Yunhai & Chen, Weixiong & Luo, Xianglong & Chen, Ying & Yang, Zhi & Eames, Ian W., 2018. "Investigation of the ejector nozzle in refrigeration system," Energy, Elsevier, vol. 157(C), pages 571-587.
    6. Song, Tao & Tian, Jinyi & Ni, Long & Shen, Chao & Yao, Yang, 2018. "Experimental study on enhanced separation of a novel de-foulant hydrocyclone with a reflux ejector," Energy, Elsevier, vol. 163(C), pages 490-500.
    7. Zheng, Ping & Li, Bing & Qin, Jingxuan, 2018. "CFD simulation of two-phase ejector performance influenced by different operation conditions," Energy, Elsevier, vol. 155(C), pages 1129-1145.
    8. Yiming Zhao & Haoran Li & Dapeng Hu & Minghao Liu & Qing Feng, 2022. "Study on the Performance of Collaborative Production Mode for Gas Wave Ejector," Sustainability, MDPI, vol. 14(12), pages 1-21, June.
    9. Jafarian, Ali & Azizi, Mohammad & Forghani, Pezhman, 2016. "Experimental and numerical investigation of transient phenomena in vacuum ejectors," Energy, Elsevier, vol. 102(C), pages 528-536.
    10. 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.
    11. 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.

    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. 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.
    2. Zhang, Kun & Chen, Xue & Markides, Christos N. & Yang, Yong & Shen, Shengqiang, 2016. "Evaluation of ejector performance for an organic Rankine cycle combined power and cooling system," Applied Energy, Elsevier, vol. 184(C), pages 404-412.
    3. 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.
    4. Besagni, Giorgio & Mereu, Riccardo & Inzoli, Fabio, 2016. "Ejector refrigeration: A comprehensive review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 53(C), pages 373-407.
    5. 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.
    6. Fredrik Skaug Fadnes & Reyhaneh Banihabib & Mohsen Assadi, 2023. "Using Artificial Neural Networks to Gather Intelligence on a Fully Operational Heat Pump System in an Existing Building Cluster," Energies, MDPI, vol. 16(9), pages 1-33, May.
    7. Jie, Ji & Jingyong, Cai & Wenzhu, Huang & Yan, Feng, 2015. "Experimental study on the performance of solar-assisted multi-functional heat pump based on enthalpy difference lab with solar simulator," Renewable Energy, Elsevier, vol. 75(C), pages 381-388.
    8. 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.
    9. Mahmoudi, S.M.S. & Akbari Kordlar, M., 2018. "A new flexible geothermal based cogeneration system producing power and refrigeration," Renewable Energy, Elsevier, vol. 123(C), pages 499-512.
    10. Sun, Fangtian & Fu, Lin & Sun, Jian & Zhang, Shigang, 2014. "A new ejector heat exchanger based on an ejector heat pump and a water-to-water heat exchanger," Applied Energy, Elsevier, vol. 121(C), pages 245-251.
    11. Nguyen, Hiep V. & Law, Ying Lam E. & Alavy, Masih & Walsh, Philip R. & Leong, Wey H. & Dworkin, Seth B., 2014. "An analysis of the factors affecting hybrid ground-source heat pump installation potential in North America," Applied Energy, Elsevier, vol. 125(C), pages 28-38.
    12. Sözen, Adnan & Yücesu, H. Serdar, 2007. "Performance improvement of absorption heat transformer," Renewable Energy, Elsevier, vol. 32(2), pages 267-284.
    13. Kayaci, Nurullah, 2020. "Energy and exergy analysis and thermo-economic optimization of the ground source heat pump integrated with radiant wall panel and fan-coil unit with floor heating or radiator," Renewable Energy, Elsevier, vol. 160(C), pages 333-349.
    14. Giovanni Murano & Francesca Caffari & Nicolandrea Calabrese, 2024. "Energy Potential of Existing Reversible Air-to-Air Heat Pumps for Residential Heating," Sustainability, MDPI, vol. 16(14), pages 1-23, July.
    15. 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.
    16. Aste, Niccolò & Adhikari, R.S. & Manfren, Massimiliano, 2013. "Cost optimal analysis of heat pump technology adoption in residential reference buildings," Renewable Energy, Elsevier, vol. 60(C), pages 615-624.
    17. Treichel, Calene & Cruickshank, Cynthia A., 2021. "Energy analysis of heat pump water heaters coupled with air-based solar thermal collectors in Canada and the United States," Energy, Elsevier, vol. 221(C).
    18. 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.
    19. Balghouthi, M. & Chahbani, M.H. & Guizani, A., 2012. "Investigation of a solar cooling installation in Tunisia," Applied Energy, Elsevier, vol. 98(C), pages 138-148.
    20. Mohamed, Elamin & Riffat, Saffa & Omer, Siddig & Zeinelabdein, Rami, 2019. "A comprehensive investigation of using mutual air and water heating in multi-functional DX-SAMHP for moderate cold climate," Renewable Energy, Elsevier, vol. 130(C), pages 582-600.

    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:68:y:2014:i:c:p:174-181. 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.