IDEAS home Printed from https://ideas.repec.org/a/eee/energy/v242y2022ics0360544221032163.html
   My bibliography  Save this article

Study on evolution laws of two-phase choking flow and entrainment performance of steam ejector oriented towards MED-TVC desalination system

Author

Listed:
  • Tang, Yongzhi
  • Yuan, Jiali
  • Liu, Zhongliang
  • Feng, Qing
  • Gong, Xiaolong
  • Lu, Lin
  • Chua, Kian Jon

Abstract

In this study, a visualizable experimental platform of steam ejector oriented towards MED-TVC desalination system is constructed, and the evolution laws of two-phase choking flow and ejector's entrainment performance under various operating parameters are obtained. Further, a matching double-choking theory with consideration of the condensing flow is developed to explain the inherent reason behind these evolution laws. Key results revealed that the formed two-phase choking flows have great effects on ejector's entrainment performance. The primary jet flow choking area linearly increases as the primary steam pressure raises, and the entrainment choking area experiences a small reduction, while the extended flow area marginally increases. Accordingly, the entrainment ratio significantly decreases, while the choking cross-section is slightly shifted upstream. In addition, the primary jet flow choking area considerably decreases with increasing entrainment pressure, but the entrainment choking area is nearly unchanged and the extended flow area increases by more than 8 times. As a result, the entrainment ratio remarkably increases, the choking cross-section migration distances are much larger than that in the case of primary steam pressure varies. A meaningful guide evolves from fact that priority should be given to restrain the condensing flow for achieving a higher energy efficiency of ejector.

Suggested Citation

  • Tang, Yongzhi & Yuan, Jiali & Liu, Zhongliang & Feng, Qing & Gong, Xiaolong & Lu, Lin & Chua, Kian Jon, 2022. "Study on evolution laws of two-phase choking flow and entrainment performance of steam ejector oriented towards MED-TVC desalination system," Energy, Elsevier, vol. 242(C).
    • Handle: RePEc:eee:energy:v:242:y:2022:i:c:s0360544221032163
    DOI: 10.1016/j.energy.2021.122967
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0360544221032163
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.energy.2021.122967?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. Bian, Jiang & Cao, Xuewen & Yang, Wen & Song, Xiaodan & Xiang, Chengcheng & Gao, Song, 2019. "Condensation characteristics of natural gas in the supersonic liquefaction process," Energy, Elsevier, vol. 168(C), pages 99-110.
    2. Yang, Yan & Zhu, Xiaowei & Yan, Yuying & Ding, Hongbing & Wen, Chuang, 2019. "Performance of supersonic steam ejectors considering the nonequilibrium condensation phenomenon for efficient energy utilisation," Applied Energy, Elsevier, vol. 242(C), pages 157-167.
    3. Bian, Jiang & Cao, Xuewen & Yang, Wen & Edem, Mawugbe Ayivi & Yin, Pengbo & Jiang, Wenming, 2018. "Supersonic liquefaction properties of natural gas in the Laval nozzle," Energy, Elsevier, vol. 159(C), pages 706-715.
    4. Kuo, Jenn-Kun & Hsieh, Chun-Yao, 2021. "Numerical investigation into effects of ejector geometry and operating conditions on hydrogen recirculation ratio in 80 kW PEM fuel cell system," Energy, Elsevier, vol. 233(C).
    5. 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.
    6. Yang, Yan & Karvounis, Nikolas & Walther, Jens Honore & Ding, Hongbing & Wen, Chuang, 2021. "Effect of area ratio of the primary nozzle on steam ejector performance considering nonequilibrium condensations," Energy, Elsevier, vol. 237(C).
    7. 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.
    8. Wang, Ji-Xiang & Li, Yun-Ze & Li, Jia-Xin & Li, Chao & Xiong, Kai & Ning, Xian-Wen, 2018. "Enhanced heat transfer by an original immersed spray cooling system integrated with an ejector," Energy, Elsevier, vol. 158(C), pages 512-523.
    9. Chen, Q. & Ja, M. Kum & Li, Y. & Chua, K.J., 2019. "Energy, exergy and economic analysis of a hybrid spray-assisted low-temperature desalination/thermal vapor compression system," Energy, Elsevier, vol. 166(C), pages 871-885.
    10. Chong, Daotong & Hu, Mengqi & Chen, Weixiong & Wang, Jinshi & Liu, Jiping & Yan, Junjie, 2014. "Experimental and numerical analysis of supersonic air ejector," Applied Energy, Elsevier, vol. 130(C), pages 679-684.
    11. Croquer, Sergio & Fang, Yu & Metsue, Antoine & Bartosiewicz, Yann & Poncet, Sébastien, 2021. "Compound-choking theory for supersonic ejectors working with real gas," Energy, Elsevier, vol. 227(C).
    12. Tang, Yongzhi & Liu, Zhongliang & Li, Yanxia & Huang, Zhifeng & Chua, Kian Jon, 2021. "Study on fundamental link between mixing efficiency and entrainment performance of a steam ejector," Energy, Elsevier, vol. 215(PB).
    13. Gude, Veera Gnaneswar, 2015. "Energy storage for desalination processes powered by renewable energy and waste heat sources," Applied Energy, Elsevier, vol. 137(C), pages 877-898.
    14. Li, Yafei & Deng, Jianqiang & Ma, Li, 2019. "Experimental study on the primary flow expansion characteristics in transcritical CO2 two-phase ejectors with different primary nozzle diverging angles," Energy, Elsevier, vol. 186(C).
    15. Tashtoush, Bourhan M. & Al-Nimr, Moh'd A. & Khasawneh, Mohammad A., 2019. "A comprehensive review of ejector design, performance, and applications," Applied Energy, Elsevier, vol. 240(C), pages 138-172.
    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. Jiajie Zhang & Yun Liu & Yumeng Guo & Jingxian Zhang & Suxia Ma, 2023. "Numerical Study on Flow and Noise Characteristics of High-Temperature and High-Pressure Steam Ejector," Energies, MDPI, vol. 16(10), pages 1-24, May.

    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. Tang, Yongzhi & Liu, Zhongliang & Li, Yanxia & Huang, Zhifeng & Chua, Kian Jon, 2021. "Study on fundamental link between mixing efficiency and entrainment performance of a steam ejector," Energy, Elsevier, vol. 215(PB).
    2. Wen, Chuang & Gong, Liang & Ding, Hongbing & Yang, Yan, 2020. "Steam ejector performance considering phase transition for multi-effect distillation with thermal vapour compression (MED-TVC) desalination system," Applied Energy, Elsevier, vol. 279(C).
    3. Bian, Jiang & Cao, Xuewen & Teng, Lin & Sun, Yuan & Gao, Song, 2019. "Effects of inlet parameters on the supersonic condensation and swirling characteristics of binary natural gas mixture," Energy, Elsevier, vol. 188(C).
    4. 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.
    5. Ding, Hongbing & Dong, Yuanyuan & Zhang, Yu & Yang, Yan & Wen, Chuang, 2023. "Energy efficiency assessment of hydrogen recirculation ejectors for proton exchange membrane fuel cell (PEMFC) system," Applied Energy, Elsevier, vol. 346(C).
    6. Chen, Jianan & Li, Anna & Huang, Zhu & Jiang, Wenming & Xi, Guang, 2023. "Non-equilibrium condensation in flue gas and migration trajectory of CO2 droplets in a supersonic separator," Energy, Elsevier, vol. 276(C).
    7. Zhang, Guojie & Dykas, Sławomir & Li, Pan & Li, Hang & Wang, Junlei, 2020. "Accurate condensing steam flow modeling in the ejector of the solar-driven refrigeration system," Energy, Elsevier, vol. 212(C).
    8. Yang, Yan & Karvounis, Nikolas & Walther, Jens Honore & Ding, Hongbing & Wen, Chuang, 2021. "Effect of area ratio of the primary nozzle on steam ejector performance considering nonequilibrium condensations," Energy, Elsevier, vol. 237(C).
    9. Bian, Jiang & Cao, Xuewen & Yang, Wen & Song, Xiaodan & Xiang, Chengcheng & Gao, Song, 2019. "Condensation characteristics of natural gas in the supersonic liquefaction process," Energy, Elsevier, vol. 168(C), pages 99-110.
    10. 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).
    11. Song, Yajie & Wang, Xinli & Wang, Lei & Pan, Fengwen & Chen, Wenmiao & Xi, Fuqiang, 2021. "A twin-nozzle ejector for hydrogen recirculation in wide power operation of polymer electrolyte membrane fuel cell system," Applied Energy, Elsevier, vol. 300(C).
    12. Jie Wang & Hongfang Gu, 2021. "A Study of Moist Air Condensation Characteristics in a Transonic Flow System," Energies, MDPI, vol. 14(13), pages 1-12, July.
    13. 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.
    14. Jia-Xin Li & Yun-Ze Li & Ben-Yuan Cai & En-Hui Li, 2019. "Experimental Investigation on Heat Transfer Mechanism of Air-Blast-Spray-Cooling System with a Two-Phase Ejector Loop for Aeronautical Application," Energies, MDPI, vol. 12(20), pages 1-20, October.
    15. Besagni, Giorgio, 2019. "Ejectors on the cutting edge: The past, the present and the perspective," Energy, Elsevier, vol. 170(C), pages 998-1003.
    16. Chen, Jianan & Huang, Zhu & Li, Anna & Gao, Ran & Jiang, Wenming, 2022. "Carbon capture in laval nozzles with different bicubic parametric curves and translation of witoszynski curves," Energy, Elsevier, vol. 260(C).
    17. Yiqiao Li & Shengqiang Shen & Chao Niu & Yali Guo & Liuyang Zhang, 2022. "The Effect of Different Pressure Conditions on Shock Waves in a Supersonic Steam Ejector," Energies, MDPI, vol. 15(8), pages 1-15, April.
    18. Li, Zhuoran & Zhang, Caigong & Li, Changjun & Jia, Wenlong, 2022. "Thermodynamic study on the natural gas condensation in the throttle valve for the efficiency of the natural gas transport system," Applied Energy, Elsevier, vol. 322(C).
    19. Bian, Jiang & Guo, Dan & Li, Yuxuan & Cai, Weihua & Hua, Yihuai & Cao, Xuewen, 2022. "Homogeneous nucleation and condensation mechanism of methane gas: A molecular simulation perspective," Energy, Elsevier, vol. 249(C).
    20. Jianmei Feng & Jiquan Han & Zihui Pang & Xueyuan Peng, 2023. "Designing Hydrogen Recirculation Ejectors for Proton Exchange Membrane Fuel Cell Systems," Energies, MDPI, vol. 16(3), pages 1-10, January.

    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:242:y:2022:i:c:s0360544221032163. 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.