IDEAS home Printed from https://ideas.repec.org/a/eee/energy/v95y2016icp380-392.html
   My bibliography  Save this article

Mixing layer effects on the entrainment ratio in steam ejectors through ideal gas computational simulations

Author

Listed:
  • Ariafar, Kavous
  • Buttsworth, David
  • Al-Doori, Ghassan
  • Sharifi, Navid

Abstract

Ejector entrainment ratios are influenced by both pressure-driven effects and the mixing between the primary and secondary streams, but the significance of each factor has not been identified in prior literature. This paper presents a computational simulation investigation of flow in a representative steam ejector to specify the contribution of mixing and pressure-driven effects to the overall ejector entrainment ratio under different operating conditions. The simulation of mixing layer growth was validated by using experimental data available in the literature, while the application of the computational method to the ejector flows was validated using static pressure distribution and entrainment ratio data in the particular experimental ejector arrangement. Simulation results show that under a fixed operating condition for the primary and discharge streams, at lower secondary pressure the ejector entrainment ratio is more strongly influenced by the mixing effects. For the particular ejector and the operating conditions considered herein, about 35% of the ejector entrainment ratio is due to mixing effects when the secondary stream pressure lift ratio is 4.5, while this portion is reduced to about 22% when the secondary stream pressure lift ratio is 1.6.

Suggested Citation

  • Ariafar, Kavous & Buttsworth, David & Al-Doori, Ghassan & Sharifi, Navid, 2016. "Mixing layer effects on the entrainment ratio in steam ejectors through ideal gas computational simulations," Energy, Elsevier, vol. 95(C), pages 380-392.
  • Handle: RePEc:eee:energy:v:95:y:2016:i:c:p:380-392
    DOI: 10.1016/j.energy.2015.12.027
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0360544215016692
    Download Restriction: Full text for ScienceDirect subscribers only

    File URL: https://libkey.io/10.1016/j.energy.2015.12.027?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. Ji, MyoungKuk & Utomo, Tony & Woo, JuSik & Lee, YongHun & Jeong, HyoMin & Chung, HanShik, 2010. "CFD investigation on the flow structure inside thermo vapor compressor," Energy, Elsevier, vol. 35(6), pages 2694-2702.
    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. 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).
    2. 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.
    3. 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.
    4. 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).
    5. 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.
    6. 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.
    7. Ge, Jing & Chen, Hongjie & Jin, Yang & Li, Jun, 2023. "Conical-cylindrical mixer ejector design model for predicting optimal nozzle exit position," Energy, Elsevier, vol. 283(C).
    8. 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.
    9. Wang, Chen & Wang, Lei & Wang, Xinli & Zhao, Hongxia, 2017. "Design and numerical investigation of an adaptive nozzle exit position ejector in multi-effect distillation desalination system," Energy, Elsevier, vol. 140(P1), pages 673-681.

    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. Jingming Dong & Weining Wang & Zhitao Han & Hongbin Ma & Yangbo Deng & Fengmin Su & Xinxiang Pan, 2018. "Experimental Investigation of the Steam Ejector in a Single-Effect Thermal Vapor Compression Desalination System Driven by a Low-Temperature Heat Source," Energies, MDPI, vol. 11(9), pages 1-13, August.
    2. Sharifi, Navid & Boroomand, Masoud & Kouhikamali, Ramin, 2012. "Wet steam flow energy analysis within thermo-compressors," Energy, Elsevier, vol. 47(1), pages 609-619.
    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. Li, Qubo & Piechna, Janusz & Müller, Norbert, 2011. "Numerical simulation of novel axial impeller patterns to compress water vapor as refrigerant," Energy, Elsevier, vol. 36(5), pages 2773-2781.
    5. Lamberts, Olivier & Chatelain, Philippe & Bourgeois, Nicolas & Bartosiewicz, Yann, 2018. "The compound-choking theory as an explanation of the entrainment limitation in supersonic ejectors," Energy, Elsevier, vol. 158(C), pages 524-536.
    6. Yang Tang & Peng Zhao & Xiaoyu Fang & Guorong Wang & Lin Zhong & Xushen Li, 2022. "Numerical Simulation on Erosion Wear Law of Pressure-Controlled Injection Tool in Solid Fluidization Exploitation of the Deep-Water Natural Gas Hydrate," Energies, MDPI, vol. 15(15), pages 1-17, July.
    7. Zhu, Hongjun & Lin, Pengzhi & Pan, Qian, 2014. "A CFD (computational fluid dynamic) simulation for oil leakage from damaged submarine pipeline," Energy, Elsevier, vol. 64(C), pages 887-899.
    8. Feng, Haodong & Yao, Ailing & Han, Qingyang & Zhang, Hailun & Jia, Lei & Sun, Wenxu, 2024. "Effect of droplets in the primary flow on ejector performance of MED-TVC systems," Energy, Elsevier, vol. 293(C).
    9. Sharifi, Navid & Sharifi, Majid, 2014. "Reducing energy consumption of a steam ejector through experimental optimization of the nozzle geometry," Energy, Elsevier, vol. 66(C), pages 860-867.
    10. Ahmadpour, A. & Noori Rahim Abadi, S.M.A. & Meyer, J.P., 2017. "On the performance enhancement of thermo-compressor and steam turbine blade cascade in the presence of spontaneous nucleation," Energy, Elsevier, vol. 119(C), pages 675-693.
    11. Luo, Chending & Zhang, Na & Lior, Noam & Lin, Hu, 2011. "Proposal and analysis of a dual-purpose system integrating a chemically recuperated gas turbine cycle with thermal seawater desalination," Energy, Elsevier, vol. 36(6), pages 3791-3803.
    12. Ravi Koirala & Quoc Linh Ve & Eliza Rupakheti & Kiao Inthavong & Abhijit Date, 2023. "Design Enhancement of Eductor for Active Vapor Transport and Condensation during Two-Phase Single-Species Flow," Energies, MDPI, vol. 16(3), pages 1-22, January.
    13. 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).
    14. 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.
    15. 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.
    16. Ariafar, Kavous & Buttsworth, David & Al-Doori, Ghassan & Malpress, Ray, 2015. "Effect of mixing on the performance of wet steam ejectors," Energy, Elsevier, vol. 93(P2), pages 2030-2041.
    17. 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.

    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:95:y:2016:i:c:p:380-392. 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.