IDEAS home Printed from https://ideas.repec.org/a/eee/appene/v120y2014icp75-84.html
   My bibliography  Save this article

Semi-analytical modelling of a hydraulic free-piston engine

Author

Listed:
  • Wu, Wei
  • Hu, Jibin
  • Yuan, Shihua

Abstract

The hydraulic free-piston engine is a hybrid of a hydraulic plunger pump and a free-piston engine. This paper presents a semi-analytical method for the hydraulic free-piston engine parameter design. An oscillation function described the piston oscillation were established. The piston oscillation characteristics were analysed. The parameter sensitivity and the limit cycle stability of the piston oscillation were investigated. The results show that the single piston free-piston engine system is a hard self-oscillation with variable damping and stiffness. External energy is required to start the piston oscillation. The piston oscillation has an unsymmetrical oscillation characteristic. The dead centres of the piston motion are determined by the energy balance. The energy supply and the energy consumption are determined by the generalised damping in the piston oscillation function. The piston oscillation frequency should satisfy the minimum compression ratio requirement for the compression ignition. In the steady operation, the piston motion is a self-excitation oscillation. The trajectory stability is mainly determined by the fuel combustion energy supply. The scavenging affected by the BDC should be paid special attention to ensure the trajectory stability.

Suggested Citation

  • Wu, Wei & Hu, Jibin & Yuan, Shihua, 2014. "Semi-analytical modelling of a hydraulic free-piston engine," Applied Energy, Elsevier, vol. 120(C), pages 75-84.
    • Handle: RePEc:eee:appene:v:120:y:2014:i:c:p:75-84
    DOI: 10.1016/j.apenergy.2014.01.059
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0306261914000889
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.apenergy.2014.01.059?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. Mikalsen, R. & Roskilly, A.P., 2009. "Coupled dynamic-multidimensional modelling of free-piston engine combustion," Applied Energy, Elsevier, vol. 86(1), pages 89-95, January.
    2. Mao, Jinlong & Zuo, Zhengxing & Feng, Huihua, 2011. "Parameters coupling designation of diesel free-piston linear alternator," Applied Energy, Elsevier, vol. 88(12), pages 4577-4589.
    3. Zhao, Zhenfeng & Zhang, Fujun & Huang, Ying & Zhao, Changlu & Guo, Feng, 2012. "An experimental study of the hydraulic free piston engine," Applied Energy, Elsevier, vol. 99(C), pages 226-233.
    4. Chiang, Chia-Jui & Yang, Jing-Long & Lan, Shao-Ya & Shei, Tsung-Wei & Chiang, Wen-Shu & Chen, Bo-Liang, 2013. "Dynamic modeling of a SI/HCCI free-piston engine generator with electric mechanical valves," Applied Energy, Elsevier, vol. 102(C), pages 336-346.
    5. Xu, Shuaiqing & Wang, Yang & Zhu, Tao & Xu, Tao & Tao, Chengjun, 2011. "Numerical analysis of two-stroke free piston engine operating on HCCI combustion," Applied Energy, Elsevier, vol. 88(11), pages 3712-3725.
    6. Hu, Jibin & Wu, Wei & Yuan, Shihua & Jing, Chongbo, 2011. "Mathematical modelling of a hydraulic free-piston engine considering hydraulic valve dynamics," Energy, Elsevier, vol. 36(10), pages 6234-6242.
    7. Mao, Jinlong & Zuo, Zhengxing & Li, Wen & Feng, Huihua, 2011. "Multi-dimensional scavenging analysis of a free-piston linear alternator based on numerical simulation," Applied Energy, Elsevier, vol. 88(4), pages 1140-1152, April.
    8. Hu, Jibin & Wu, Wei & Yuan, Shihua & Jing, Chongbo, 2013. "Fuel combustion under asymmetric piston motion: Tested results," Energy, Elsevier, vol. 55(C), pages 209-215.
    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. Hu, J.Y. & Luo, E.C. & Dai, W. & Zhang, L.M., 2017. "Parameter sensitivity analysis of duplex Stirling coolers," Applied Energy, Elsevier, vol. 190(C), pages 1039-1046.
    2. Jia, Boru & Mikalsen, Rikard & Smallbone, Andrew & Zuo, Zhengxing & Feng, Huihua & Roskilly, Anthony Paul, 2016. "Piston motion control of a free-piston engine generator: A new approach using cascade control," Applied Energy, Elsevier, vol. 179(C), pages 1166-1175.
    3. Wang, Yaodong & Chen, Lin & Jia, Boru & Roskilly, Anthony Paul, 2017. "Experimental study of the operation characteristics of an air-driven free-piston linear expander," Applied Energy, Elsevier, vol. 195(C), pages 93-99.
    4. Zhao, Zhenfeng & Wang, Shan & Zhang, Shuanlu & Zhang, Fujun, 2016. "Thermodynamic and energy saving benefits of hydraulic free-piston engines," Energy, Elsevier, vol. 102(C), pages 650-659.
    5. Yuan, Chenheng & Lu, Jiangchuan & Li, Shilei, 2023. "Thermoelectric coupling effect of secondary injection on gasoline fuel spray and mixing of a free vibration combustion alternator," Energy, Elsevier, vol. 281(C).
    6. Ayodeji Sowale & Athanasios J. Kolios, 2018. "Thermodynamic Performance of Heat Exchangers in a Free Piston Stirling Engine," Energies, MDPI, vol. 11(3), pages 1-20, February.
    7. Jia, Boru & Smallbone, Andrew & Feng, Huihua & Tian, Guohong & Zuo, Zhengxing & Roskilly, A.P., 2016. "A fast response free-piston engine generator numerical model for control applications," Applied Energy, Elsevier, vol. 162(C), pages 321-329.
    8. Fukang Ma & Shuanlu Zhang & Zhenfeng Zhao & Yifang Wang, 2021. "Research on the Operating Characteristics of Hydraulic Free-Piston Engines: A Systematic Review and Meta-Analysis," Energies, MDPI, vol. 14(12), pages 1-23, June.
    9. Zhang, Shuanlu & Zhao, Changlu & Zhao, Zhenfeng & Ma, Fukang, 2015. "Combustion characteristics analysis of hydraulic free piston diesel engine," Applied Energy, Elsevier, vol. 160(C), pages 761-768.
    10. Zhang, Shuanlu & Zhao, Changlu & Zhao, Zhenfeng, 2015. "Stability analysis of hydraulic free piston engine," Applied Energy, Elsevier, vol. 157(C), pages 805-813.
    11. Ayodeji Sowale & Edward J. Anthony & Athanasios John Kolios, 2018. "Optimisation of a Quasi-Steady Model of a Free-Piston Stirling Engine," Energies, MDPI, vol. 12(1), pages 1-17, December.
    12. Zhang, Shuanlu & Zhao, Zhenfeng & Zhao, Changlu & Zhang, Fujun & Wang, Shan, 2016. "Experimental study of hydraulic electronic unit injector in a hydraulic free piston engine," Applied Energy, Elsevier, vol. 179(C), pages 888-898.

    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. Zhang, Shuanlu & Zhao, Changlu & Zhao, Zhenfeng, 2015. "Stability analysis of hydraulic free piston engine," Applied Energy, Elsevier, vol. 157(C), pages 805-813.
    2. Yuan, Chenheng & Feng, Huihua & He, Yituan & Xu, Jing, 2016. "Combustion characteristics analysis of a free-piston engine generator coupling with dynamic and scavenging," Energy, Elsevier, vol. 102(C), pages 637-649.
    3. Jia, Boru & Zuo, Zhengxing & Feng, Huihua & Tian, Guohong & Smallbone, Andrew & Roskilly, A.P., 2016. "Effect of closed-loop controlled resonance based mechanism to start free piston engine generator: Simulation and test results," Applied Energy, Elsevier, vol. 164(C), pages 532-539.
    4. Zhao, Zhenfeng & Wu, Dan & Zhang, Zhenyu & Zhang, Fujun & Zhao, Changlu, 2014. "Experimental investigation of the cycle-to-cycle variations in combustion process of a hydraulic free-piston engine," Energy, Elsevier, vol. 78(C), pages 257-265.
    5. Wu, Limin & Feng, Huihua & Jia, Boru & Tang, Zhifeng & Yan, Xiaodong & Wang, Wei, 2022. "A novel method to investigate the power generation characteristics of linear generator in full frequency operation range applied to opposed-piston free-piston engine generator _ Simulation and test re," Energy, Elsevier, vol. 254(PB).
    6. Wu, Yining & Wang, Yang & Zhen, Xudong & Guan, Shuai & Wang, Jiancai, 2014. "Three-dimensional CFD (computational fluid dynamics) analysis of scavenging process in a two-stroke free-piston engine," Energy, Elsevier, vol. 68(C), pages 167-173.
    7. Peng Sun & Chi Zhang & Jinhua Chen & Fei Zhao & Youyong Liao & Guilin Yang & Chinyin Chen, 2016. "Decoupling Design and Verification of a Free-Piston Linear Generator," Energies, MDPI, vol. 9(12), pages 1-23, December.
    8. Lim, Ocktaeck & Hung, Nguyen Ba & Oh, Seokyoung & Kim, Gangchul & Song, Hanho & Iida, Norimasa, 2015. "A study of operating parameters on the linear spark ignition engine," Applied Energy, Elsevier, vol. 160(C), pages 746-760.
    9. Zhang, Shuanlu & Zhao, Zhenfeng & Zhao, Changlu & Zhang, Fujun & Wang, Shan, 2016. "Experimental study of hydraulic electronic unit injector in a hydraulic free piston engine," Applied Energy, Elsevier, vol. 179(C), pages 888-898.
    10. Jia, Boru & Tian, Guohong & Feng, Huihua & Zuo, Zhengxing & Roskilly, A.P., 2015. "An experimental investigation into the starting process of free-piston engine generator," Applied Energy, Elsevier, vol. 157(C), pages 798-804.
    11. Hung, Nguyen Ba & Lim, Ocktaeck, 2016. "A review of free-piston linear engines," Applied Energy, Elsevier, vol. 178(C), pages 78-97.
    12. Ziwei Zhang & Huihua Feng & Zhengxing Zuo, 2020. "Numerical Investigation of a Free-Piston Hydrogen-Gasoline Engine Linear Generator," Energies, MDPI, vol. 13(18), pages 1-16, September.
    13. Zhang, Shuanlu & Zhao, Zhenfeng & Zhao, Changlu & Zhang, Fujun & Wang, Shan, 2017. "Cold starting characteristics analysis of hydraulic free piston engine," Energy, Elsevier, vol. 119(C), pages 879-886.
    14. Hung, Nguyen Ba & Lim, Ocktaeck & Iida, Norimasa, 2015. "The effects of key parameters on the transition from SI combustion to HCCI combustion in a two-stroke free piston linear engine," Applied Energy, Elsevier, vol. 137(C), pages 385-401.
    15. Huihua Feng & Yu Song & Zhengxing Zuo & Jiao Shang & Yaodong Wang & Anthony Paul Roskilly, 2015. "Stable Operation and Electricity Generating Characteristics of a Single-Cylinder Free Piston Engine Linear Generator: Simulation and Experiments," Energies, MDPI, vol. 8(2), pages 1-21, January.
    16. Yan, Xiaodong & Feng, Huihua & Zuo, Zhengxing & Zhang, Zhiyuan & Wu, Limin & Shi, Cheng, 2021. "A study on the working characteristics of free piston linear generator with dual cylinder configuration by different secondary injection strategies," Energy, Elsevier, vol. 233(C).
    17. Hu, Jibin & Wu, Wei & Yuan, Shihua & Jing, Chongbo, 2013. "Fuel combustion under asymmetric piston motion: Tested results," Energy, Elsevier, vol. 55(C), pages 209-215.
    18. Guo, Chendong & Zuo, Zhengxing & Feng, Huihua & Jia, Boru & Roskilly, Tony, 2020. "Review of recent advances of free-piston internal combustion engine linear generator," Applied Energy, Elsevier, vol. 269(C).
    19. Feng, Huihua & Guo, Chendong & Yuan, Chenheng & Guo, Yuyao & Zuo, Zhengxing & Roskilly, Anthony Paul & Jia, Boru, 2016. "Research on combustion process of a free piston diesel linear generator," Applied Energy, Elsevier, vol. 161(C), pages 395-403.
    20. Zhao, Zhenfeng & Wang, Shan & Zhang, Shuanlu & Zhang, Fujun, 2016. "Thermodynamic and energy saving benefits of hydraulic free-piston engines," Energy, Elsevier, vol. 102(C), pages 650-659.

    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:appene:v:120:y:2014:i:c:p:75-84. 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.elsevier.com/wps/find/journaldescription.cws_home/405891/description#description .

    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.