IDEAS home Printed from https://ideas.repec.org/a/eee/energy/v323y2025ics0360544225014987.html
   My bibliography  Save this article

Experimental study on dynamic response characteristics of ejector driven by periodic pulse excitation using fast Fourier transform method

Author

Listed:
  • Liu, Bo
  • Zhang, Bo
  • Wang, Ningsheng
  • Yang, Zhuqiang

Abstract

Ejectors play a critical role in thermal energy systems, yet their transient behaviors under fluctuating conditions remain insufficiently characterized. This study systematically investigates the dynamic response characteristics of structurally diverse ejectors through experimental methods. A dedicated test rig incorporating a PWM-controlled solenoid valve was developed to generate precise pressure excitations. The dynamic response characteristics of ejectors with different excitation frequencies and amplitudes acting on ejectors with different structures (Lm = 26.3/34.6/43.9 mm) are analyzed. The experimental results show that the response time of the outlet and secondary flow pressure is independent of the frequency of the primary pressure disturbance, and the amplitude of the disturbance changes linearly with the primary pressure DP. Under different mixing section lengths, when pressure excitation is applied to the primary flow, the response time of ejector pressure does not change with the length of mixing section, and the response time of outlet pressure increases with the growth of mixing section. These findings establish quantitative relationships between ejector geometry and transient response parameters, providing actionable insights for (1) predicting ejector stability margins in dynamic operating conditions and (2) optimizing control strategies for thermal systems with inherent pressure fluctuations.

Suggested Citation

  • Liu, Bo & Zhang, Bo & Wang, Ningsheng & Yang, Zhuqiang, 2025. "Experimental study on dynamic response characteristics of ejector driven by periodic pulse excitation using fast Fourier transform method," Energy, Elsevier, vol. 323(C).
    • Handle: RePEc:eee:energy:v:323:y:2025:i:c:s0360544225014987
    DOI: 10.1016/j.energy.2025.135856
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0360544225014987
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.energy.2025.135856?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

    for a different version of it.

    References listed on IDEAS

    as
    1. Strušnik, Dušan & Marčič, Milan & Golob, Marjan & Hribernik, Aleš & Živić, Marija & Avsec, Jurij, 2016. "Energy efficiency analysis of steam ejector and electric vacuum pump for a turbine condenser air extraction system based on supervised machine learning modelling," Applied Energy, Elsevier, vol. 173(C), pages 386-405.
    2. Braimakis, Konstantinos & Karellas, Sotirios, 2024. "Thermodynamic investigation of integrated organic Rankine cycle-ejector vapor compression cooling cycle waste heat recovery configurations for cooling, heating and power production," Energy, Elsevier, vol. 304(C).
    3. Wang, Yongqing & Wang, Hongkai & Liu, Ye & Wang, Dingbiao & Wang, Guanghui & Li, Han & Chen, Jiaheng, 2024. "Heating and electricity generation performance investigation of a novel ejector enhanced photovoltaic-thermal heat pump," Energy, Elsevier, vol. 313(C).
    4. Liu, Bo & Guo, Xiangji & Xi, Xiuzhi & Sun, Jianhua & Zhang, Bo & Yang, Zhuqiang, 2023. "Thermodynamic analyses of ejector refrigeration cycle with zeotropic mixture," Energy, Elsevier, vol. 263(PD).
    5. Han, Yu & Sun, Yingying & Wu, Junjie, 2020. "An efficient solar-aided waste heat recovery system based on steam ejector and WTA pre-drying in solar/lignite hybrid power plants," Energy, Elsevier, vol. 208(C).
    6. Van den Berghe, Jan & Dias, Bruno R.B. & Bartosiewicz, Yann & Mendez, Miguel A., 2023. "A 1D model for the unsteady gas dynamics of ejectors," Energy, Elsevier, vol. 267(C).
    Full references (including those not matched with items on IDEAS)

    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. Hundi, Prabhas & Shahsavari, Rouzbeh, 2020. "Comparative studies among machine learning models for performance estimation and health monitoring of thermal power plants," Applied Energy, Elsevier, vol. 265(C).
    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. 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).
    4. 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).
    5. Gagan, Jerzy & Śmierciew, Kamil & Pawluczuk, Andrzej & Łukaszuk, Michał & Dudar, Adam & Butrymowicz, Dariusz, 2025. "The first experimental tests of novel bivalent hybrid ejector-compressor refrigeration system," Energy, Elsevier, vol. 317(C).
    6. 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).
    7. Wu, Junjie & Li, Yun & Han, Yu, 2024. "A novel solar-aided lignite-fired power generation system with calcium looping CO2 capture, lignite pre-drying and feedwater preheating," Energy, Elsevier, vol. 296(C).
    8. Siddiqui, Mohd Asjad, 2023. "Development and assessment of a novel natural gas fuelled HCCI engine based combined power, heating, and refrigeration system," Energy, Elsevier, vol. 283(C).
    9. 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).
    10. Ye, Kai & Liang, Youcai & Zhu, Yan & Ling, Xunjie & Wu, Jintao & Lu, Jidong, 2024. "Performance improvement and multi-objective optimization of a two-stage and dual-temperature ejector auto-cascade refrigeration cycle driven by the waste heat," Energy, Elsevier, vol. 311(C).
    11. Han, Yu & Sun, Yingying & Wu, Junjie, 2021. "A low-cost and efficient solar/coal hybrid power generation mode: Integration of non-concentrating solar energy and air preheating process," Energy, Elsevier, vol. 235(C).
    12. Wu, Ying & Dai, Ying & Xie, Weiyi & Chen, Haijun & Zhu, Yuezhao, 2022. "Performance analysis for post-combustion CO2 capture in coal-fired power plants by integration with solar energy," Energy, Elsevier, vol. 261(PA).
    13. Zhang, Shaozhi & Luo, Jielin & Wang, Qin & Chen, Guangming, 2018. "Step utilization of energy with ejector in a heat driven freeze drying system," Energy, Elsevier, vol. 164(C), pages 734-744.
    14. Miri, Seyedeh Mohadeseh & Farzaneh-Gord, Mahmood & Kianifar, Ali, 2023. "Triple-objective MPSO of zeotropic-fluid solar ejector cycle integrated with cold storage tank based on techno-economic criteria," Energy, Elsevier, vol. 283(C).
    15. Braimakis, Konstantinos & Kitsopoulou, Angeliki & Roumpedakis, Tryfon C. & Stavrakakis, George M. & Tzivanidis, Christos, 2025. "Part-load based optimization of solar ejector cooling cycle," Renewable Energy, Elsevier, vol. 243(C).
    16. Wasik, Michał & Łapka, Piotr, 2023. "Numerical analysis on the energy efficiency improvement of thermo-injection method of masonry walls drying by applying the variable temperature profiles of drying air," Energy, Elsevier, vol. 282(C).
    17. Chantasiriwan, Somchart, 2023. "The recovery of blowdown heat using steam dryer in biomass power plant," Energy, Elsevier, vol. 283(C).
    18. Han, Yu & Yan, Xue & Sun, Yingying & Wu, Junjie, 2024. "A novel solar-aided NOx removal system in peaking power plants," Energy, Elsevier, vol. 306(C).
    19. Zhang, Guojie & Wang, Xiaogang & Wiśniewski, Piotr & Chen, Jiaheng & Qin, Xiang & Dykas, Sławomir, 2023. "Effect of NaCl presence caused by salting out on the heterogeneous-homogeneous coupling non-equilibrium condensation flow in a steam turbine cascade," Energy, Elsevier, vol. 263(PE).
    20. Cao, Yue & Hu, Hui & Chen, Ranjing & He, Tianyu & Si, Fengqi, 2023. "Comparative analysis on thermodynamic performance of combined heat and power system employing steam ejector as cascaded heat sink," Energy, Elsevier, vol. 275(C).

    More about this item

    Keywords

    ;
    ;
    ;
    ;

    Statistics

    Access and download statistics

    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:323:y:2025:i:c:s0360544225014987. 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.