IDEAS home Printed from https://ideas.repec.org/a/gam/jijerp/v20y2022i1p740-d1021204.html
   My bibliography  Save this article

Numerical Investigation of Very Low Reynolds Cross Orifice Jet for Personalized Ventilation Applications in Aircraft Cabins

Author

Listed:
  • Florin Ioan Bode

    (Mechanical Engineering Department, Technical University of Cluj-Napoca, Muncii Boulevard Nr. 103-105, D03, 400114 Cluj-Napoca, Romania
    Building Services Department, CAMBI, Technical University of Civil Engineering in Bucharest, 66 Avenue Pache Protopopescu, 020396 Bucharest, Romania)

  • Ilinca Nastase

    (Building Services Department, CAMBI, Technical University of Civil Engineering in Bucharest, 66 Avenue Pache Protopopescu, 020396 Bucharest, Romania)

Abstract

This study focuses on the numerical analysis of a challenging issue involving the regulation of the human body’s microenvironment through personalized ventilation. We intended to first concentrate on the main flow, namely, the personalized ventilation jet, before connecting the many interacting components that are impacting this microenvironment (human body plume, personalized ventilation jet, and the human body itself as a solid obstacle). Using the laminar model and the large eddy simulation (LES) model, the flow field of a cross-shaped jet with very low Reynolds numbers is examined numerically. The related results are compared to data from laser doppler velocimetry (LDV) and particle image velocimetry (PIV) for a reference jet design. The major goal of this study is to evaluate the advantages and disadvantages of the CFD approach for simulating the key features of the cross-shaped orifice jet flow. It was discovered that the laminar model overestimated the global jet volumetric flow rate and the flow expansion. LES looks more suitable for the numerical prediction of such dynamic integral quantities. In light of the computational constraints, it quite accurately mimics the mean flow behavior in the first ten equivalent diameters from the orifice, where the mesh grid was extremely finely tuned. From the perspective of the intended application, the streamwise velocity distributions, streamwise velocity decay, and volumetric flow rate anticipated by the LES model are rather well reproduced.

Suggested Citation

  • Florin Ioan Bode & Ilinca Nastase, 2022. "Numerical Investigation of Very Low Reynolds Cross Orifice Jet for Personalized Ventilation Applications in Aircraft Cabins," IJERPH, MDPI, vol. 20(1), pages 1-26, December.
    • Handle: RePEc:gam:jijerp:v:20:y:2022:i:1:p:740-:d:1021204
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1660-4601/20/1/740/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/1660-4601/20/1/740/
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Veselý, Michal & Zeiler, Wim, 2014. "Personalized conditioning and its impact on thermal comfort and energy performance – A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 34(C), pages 401-408.
    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. Nweye, Kingsley & Nagy, Zoltan, 2022. "MARTINI: Smart meter driven estimation of HVAC schedules and energy savings based on Wi-Fi sensing and clustering," Applied Energy, Elsevier, vol. 316(C).
    2. Feng, Yanxiao & Liu, Shichao & Wang, Julian & Yang, Jing & Jao, Ying-Ling & Wang, Nan, 2022. "Data-driven personal thermal comfort prediction: A literature review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 161(C).
    3. Enescu, Diana, 2017. "A review of thermal comfort models and indicators for indoor environments," Renewable and Sustainable Energy Reviews, Elsevier, vol. 79(C), pages 1353-1379.
    4. Haider Latif & Samira Rahnama & Alessandro Maccarini & Goran Hultmark & Peter V. Nielsen & Alireza Afshari, 2022. "Precision Ventilation in an Open-Plan Office: A New Application of Active Chilled Beam (ACB) with a JetCone Feature," Sustainability, MDPI, vol. 14(7), pages 1-17, April.
    5. Shahzad, Sally & Calautit, John Kaiser & Aquino, Angelo I. & Nasir, Diana S.N.M. & Hughes, Ben Richard, 2017. "A user-controlled thermal chair for an open plan workplace: CFD and field studies of thermal comfort performance," Applied Energy, Elsevier, vol. 207(C), pages 283-293.
    6. Guillén-Lambea, Silvia & Rodríguez-Soria, Beatriz & Marín, José M., 2017. "Comfort settings and energy demand for residential nZEB in warm climates," Applied Energy, Elsevier, vol. 202(C), pages 471-486.
    7. Jan Kaczmarczyk & Joanna Ferdyn-Grygierek, 2020. "Thermal Comfort and Energy Use with Local Heaters," Energies, MDPI, vol. 13(11), pages 1-14, June.
    8. Nick Van Loy & Griet Verbeeck & Elke Knapen, 2021. "Personal Heating in Dwellings as an Innovative, Energy-Sufficient Heating Practice: A Case Study Research," Sustainability, MDPI, vol. 13(13), pages 1-27, June.
    9. Croitoru, Cristiana & Nastase, Ilinca & Bode, Florin & Meslem, Amina & Dogeanu, Angel, 2015. "Thermal comfort models for indoor spaces and vehicles—Current capabilities and future perspectives," Renewable and Sustainable Energy Reviews, Elsevier, vol. 44(C), pages 304-318.
    10. Zhao, Dongliang & Lu, Xing & Fan, Tianzhu & Wu, Yuen Shing & Lou, Lun & Wang, Qiuwang & Fan, Jintu & Yang, Ronggui, 2018. "Personal thermal management using portable thermoelectrics for potential building energy saving," Applied Energy, Elsevier, vol. 218(C), pages 282-291.
    11. Park, June Young & Nagy, Zoltan, 2018. "Comprehensive analysis of the relationship between thermal comfort and building control research - A data-driven literature review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 82(P3), pages 2664-2679.
    12. Labeodan, Timilehin & Aduda, Kennedy & Boxem, Gert & Zeiler, Wim, 2015. "On the application of multi-agent systems in buildings for improved building operations, performance and smart grid interaction – A survey," Renewable and Sustainable Energy Reviews, Elsevier, vol. 50(C), pages 1405-1414.
    13. Dhumane, Rohit & Ling, Jiazhen & Aute, Vikrant & Radermacher, Reinhard, 2017. "Portable personal conditioning systems: Transient modeling and system analysis," Applied Energy, Elsevier, vol. 208(C), pages 390-401.
    14. Keyvanfar, Ali & Shafaghat, Arezou & Abd Majid, Muhd Zaimi & Bin Lamit, Hasanuddin & Warid Hussin, Mohd & Binti Ali, Kherun Nita & Dhafer Saad, Alshahri, 2014. "User satisfaction adaptive behaviors for assessing energy efficient building indoor cooling and lighting environment," Renewable and Sustainable Energy Reviews, Elsevier, vol. 39(C), pages 277-295.
    15. Zhang, Sheng & Lu, Yalin & Niu, Dun & Lin, Zhang, 2022. "Energy performance index of air distribution: Thermal utilization effectiveness," Applied Energy, Elsevier, vol. 307(C).
    16. D’Oca, Simona & Hong, Tianzhen & Langevin, Jared, 2018. "The human dimensions of energy use in buildings: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 81(P1), pages 731-742.
    17. Moeller, Simon & Bauer, Amelie, 2022. "Energy (in)efficient comfort practices: How building retrofits influence energy behaviours in multi-apartment buildings," Energy Policy, Elsevier, vol. 168(C).
    18. Augusto Cavargna & Luigi Mongibello & Marcello Iasiello & Nicola Bianco, 2023. "Analysis of a Phase Change Material-Based Condenser of a Low-Scale Refrigeration System," Energies, MDPI, vol. 16(9), pages 1-24, April.
    19. Karin Lundgren Kownacki & Chuansi Gao & Kalev Kuklane & Aneta Wierzbicka, 2019. "Heat Stress in Indoor Environments of Scandinavian Urban Areas: A Literature Review," IJERPH, MDPI, vol. 16(4), pages 1-18, February.

    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:gam:jijerp:v:20:y:2022:i:1:p:740-:d:1021204. 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: MDPI Indexing Manager (email available below). General contact details of provider: https://www.mdpi.com .

    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.