IDEAS home Printed from https://ideas.repec.org/a/eee/energy/v218y2021ics0360544220323562.html
   My bibliography  Save this article

Experimental characterization of nozzle flow expansions of siloxane MM for ORC turbines applications

Author

Listed:
  • Cammi, Giorgia
  • Conti, Camilla Cecilia
  • Spinelli, Andrea
  • Guardone, Alberto

Abstract

This paper reports extensive experimental results characterizing the supersonic expansion of organic vapor MM (hexamethyldisiloxane, C6H18OSi2) in conditions representative of actual Organic Rankine Cycle turbine operation, in the close proximity of the liquid-vapor saturation curve. Experiments were conducted on the Test Rig for Organic VApors, at the Laboratory of Compressible fluid dynamics for Renewable Energy Applications of Politecnico di Milano. A planar nozzle featuring a design exit Mach number of 1.6 was characterized by measuring total pressure, total temperature, static pressures along the nozzle axis and by schlieren visualizations. The non-ideal influence of inlet total conditions on nozzle expansions was verified by gathering data exhibiting total compressibility factor ZT ranging from 0.39 (strongly non-ideal) to 0.98 (almost ideal conditions). Pressure ratio measured at the lowest ZT exceeded by 10%–20% the one at highest ZT along the whole nozzle. An extensive experimental dataset was analyzed to assess the influence of both total compressibility factor ZT and total fundamental derivative of gasdynamics ΓT on the non-dimensional pressure distribution along the nozzle axis. It was investigated whether one parameter only can univocally identify a non-dimensional nozzle expansion. Significant validation data for simulation codes and design tools are provided for MM and for siloxanes in general.

Suggested Citation

  • Cammi, Giorgia & Conti, Camilla Cecilia & Spinelli, Andrea & Guardone, Alberto, 2021. "Experimental characterization of nozzle flow expansions of siloxane MM for ORC turbines applications," Energy, Elsevier, vol. 218(C).
    • Handle: RePEc:eee:energy:v:218:y:2021:i:c:s0360544220323562
    DOI: 10.1016/j.energy.2020.119249
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0360544220323562
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.energy.2020.119249?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. Spinelli, Andrea & Cammi, Giorgia & Conti, Camilla Cecilia & Gallarini, Simone & Zocca, Marta & Cozzi, Fabio & Gaetani, Paolo & Dossena, Vincenzo & Guardone, Alberto, 2019. "Experimental observation and thermodynamic modeling of non-ideal expanding flows of siloxane MDM vapor for ORC applications," Energy, Elsevier, vol. 168(C), pages 285-294.
    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. Andrea Zini & Luca Socci & Guglielmo Vaccaro & Andrea Rocchetti & Lorenzo Talluri, 2024. "Working Fluid Selection for High-Temperature Heat Pumps: A Comprehensive Evaluation," Energies, MDPI, vol. 17(7), pages 1-24, March.
    2. Matar, Camille & Cinnella, Paola & Gloerfelt, Xavier & Reinker, Felix & aus der Wiesche, Stefan, 2023. "Investigation of non-ideal gas flows around a circular cylinder," Energy, Elsevier, vol. 268(C).
    3. Lan, Song & Li, Qingshan & Guo, Xin & Wang, Shukun & Chen, Rui, 2023. "Fuel saving potential analysis of bifunctional vehicular waste heat recovery system using thermoelectric generator and organic Rankine cycle," Energy, Elsevier, vol. 263(PB).

    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. Ping, Xu & Yang, Fubin & Zhang, Hongguang & Xing, Chengda & Zhang, Wujie & Wang, Yan & Yao, Baofeng, 2023. "Dynamic response assessment and multi-objective optimization of organic Rankine cycle (ORC) under vehicle driving cycle conditions," Energy, Elsevier, vol. 263(PA).
    2. Zhang, Bo & Wang, Enhua & Meng, Fanxiao & Zhang, Fujun & Zhao, Changlu, 2020. "Prediction accuracy of thermodynamic properties using PC-SAFT for high-temperature organic Rankine cycle with siloxanes," Energy, Elsevier, vol. 204(C).
    3. Ping, Xu & Yang, Fubin & Zhang, Hongguang & Xing, Chengda & Wang, Chongyao & Zhang, Wujie & Wang, Yan, 2022. "Energy, economic and environmental dynamic response characteristics of organic Rankine cycle (ORC) system under different driving cycles," Energy, Elsevier, vol. 246(C).

    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:218:y:2021:i:c:s0360544220323562. 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.