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High-Resolution CFD and In-Situ Monitoring Based Validation of an Industrial Passive Air Conduction System (PACS)

Author

Listed:
  • Ádám László Katona

    (Energia Design Building Technology Research Group, Szentágothay Research Centre, H-7624 Pécs, Hungary
    Breuer Marcel Doctoral School, Faculty of Engineering and Information Technology, University of Pécs, H-7624 Pécs, Hungary)

  • Huang Xuan

    (Department of Architecture, School of Architecture and Design, Southwest Jiaotong University, Chengdu 611756, China)

  • Sara Elhadad

    (Energia Design Building Technology Research Group, Szentágothay Research Centre, H-7624 Pécs, Hungary
    Breuer Marcel Doctoral School, Faculty of Engineering and Information Technology, University of Pécs, H-7624 Pécs, Hungary
    Department of Architecture, Faculty of Engineering, Minia University, Minia 61111, Egypt)

  • István Kistelegdi

    (Energia Design Building Technology Research Group, Szentágothay Research Centre, H-7624 Pécs, Hungary
    Department of Building Structures and Energy Design, Institute of Architecture, Faculty of Engineering and Information Technology, University of Pécs, H-7624 Pécs, Hungary)

  • István Háber

    (Energia Design Building Technology Research Group, Szentágothay Research Centre, H-7624 Pécs, Hungary
    Department of Mechanical Engineering, Institute of Smart technology and Engineering, Faculty of Engineering and Information Technology, University of Pécs, H-7624 Pécs, Hungary)

Abstract

Natural driven ventilation is a widely used technique in hot and arid climate, but it is rarely known that it can lead to significant energy saving in a moderate climate too. In this paper, an existing building is presented that was designed with a passive air conduction system (PACS), where wind and buoyancy effects induce air to be exchanged without external energy needs. The aim is to show that the design methodology, using numerical simulation to give accurate results, is able to use them in further developments. Due to this design process, the specific building possesses numerous special properties, including airflow accelerating elements, solar-heated “chimneys”, and the indoor heat sources coming from the industrial technology. As the building has been constructed and was equipped with around 750 sensors (integrated and manual), it is possible to analyze the ongoing physical phenomenon in a highly detailed way and to collect the experienced dataset for further investigations. The current study carries out a complex validation of the design and the used numerical methods to give general design rules for further PACS design and support following investigations, e.g., occupant comfort prediction or latent heat storage calculation. The experiences showed that the developed computational fluid dynamics technique gives a below 99% accuracy in the velocity and the temperature field, and approximately 85% accuracy in the volume flow values, resulting in a good prediction for aerodynamic characterization of buildings, i.e., passive ventilation air exchange rate.

Suggested Citation

  • Ádám László Katona & Huang Xuan & Sara Elhadad & István Kistelegdi & István Háber, 2020. "High-Resolution CFD and In-Situ Monitoring Based Validation of an Industrial Passive Air Conduction System (PACS)," Energies, MDPI, vol. 13(12), pages 1-23, June.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:12:p:3157-:d:373043
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    References listed on IDEAS

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    1. Awbi, H.B., 1996. "Air movement in naturally-ventilated buildings," Renewable Energy, Elsevier, vol. 8(1), pages 241-247.
    2. Tong, Zheming & Chen, Yujiao & Malkawi, Ali & Liu, Zhu & Freeman, Richard B., 2016. "Energy saving potential of natural ventilation in China: The impact of ambient air pollution," Applied Energy, Elsevier, vol. 179(C), pages 660-668.
    3. Chen, Yujiao & Malkawi, Ali & Liu, Zhu & Freeman, Richard Barry & Tong, Zheming, 2016. "Energy Saving Potential of Natural Ventilation in China: The Impact of Ambient Air Pollution," Scholarly Articles 27733689, Harvard University Department of Economics.
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    Cited by:

    1. Sara Elhadad & Zoltan Orban, 2021. "A Sensitivity Analysis for Thermal Performance of Building Envelope Design Parameters," Sustainability, MDPI, vol. 13(24), pages 1-17, December.
    2. Radoslav Ponechal & Peter Krušinský & Peter Kysela & Peter Pisca, 2021. "Simulations of Airflow in the Roof Space of a Gothic Sanctuary Using CFD Models," Energies, MDPI, vol. 14(12), pages 1-20, June.

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