IDEAS home Printed from https://ideas.repec.org/a/eee/renene/v36y2011i9p2494-2501.html
   My bibliography  Save this article

Outdoor airflow analysis and potential for passive cooling in the traditional urban context of Dubai

Author

Listed:
  • Al-Sallal, Khaled A.
  • Al-Rais, Laila

Abstract

The main aim of the study is to investigate passive cooling performance in traditional urban contexts in the hot humid climate of the city of Dubai. Three cases were simulated for Al-Ras area with laminar and turbulent wind flow depending on Computational Fluid Dynamics (CFD) methodology. The laminar case was firstly run to study the general wind behavior around buildings and at the pedestrian level. The other two cases were turbulence modeling in both winter and summer seasons. The results were merely discussed and analyzed in terms of passive cooling via natural ventilation and its impact on human comfort. Narrow street canyons (4 m and less) can accelerate wind speed passing through it, resulting in a better passive cooling performance but sometimes in creating eddies if there are lots of bending angles. When the wind speed is higher (5 m/s), wind can reach deeper inside the traditional narrow streets providing better potential for thermal comfort. Most locations (49–57% of the studied area) inside the traditional urban context (street canyons aspect ratio, AR = 2–0.67) have wind speeds that range from light breeze to gentle breeze (according to Beaufort scale); which has the potential to provide natural cooling with around 5–8.5 °C lower temperature comfort sensation with basic assumption of 1.3 metabolic rate (MET) and 0.4 insulating value of summer clothing (CLO).

Suggested Citation

  • Al-Sallal, Khaled A. & Al-Rais, Laila, 2011. "Outdoor airflow analysis and potential for passive cooling in the traditional urban context of Dubai," Renewable Energy, Elsevier, vol. 36(9), pages 2494-2501.
    • Handle: RePEc:eee:renene:v:36:y:2011:i:9:p:2494-2501
    DOI: 10.1016/j.renene.2011.01.035
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0960148111000577
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.renene.2011.01.035?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. Awbi, Hazim B., 1998. "Chapter 7--Ventilation," Renewable and Sustainable Energy Reviews, Elsevier, vol. 2(1-2), pages 157-188, June.
    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. Kim, Se Woong & Brown, Robert D., 2021. "Urban heat island (UHI) variations within a city boundary: A systematic literature review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 148(C).
    2. Costanzo, Vincenzo & Yao, Runming & Xu, Tiantian & Xiong, Jie & Zhang, Qiulei & Li, Baizhan, 2019. "Natural ventilation potential for residential buildings in a densely built-up and highly polluted environment. A case study," Renewable Energy, Elsevier, vol. 138(C), pages 340-353.
    3. Javanroodi, Kavan & Mahdavinejad, Mohammadjavad & Nik, Vahid M., 2018. "Impacts of urban morphology on reducing cooling load and increasing ventilation potential in hot-arid climate," Applied Energy, Elsevier, vol. 231(C), pages 714-746.
    4. Toparlar, Y. & Blocken, B. & Maiheu, B. & van Heijst, G.J.F., 2017. "A review on the CFD analysis of urban microclimate," Renewable and Sustainable Energy Reviews, Elsevier, vol. 80(C), pages 1613-1640.
    5. Al-Sallal, Khaled A. & Al-Rais, Laila, 2012. "Outdoor airflow analysis and potential for passive cooling in the modern urban context of Dubai," Renewable Energy, Elsevier, vol. 38(1), pages 40-49.
    6. Rosso, Federica & Golasi, Iacopo & Castaldo, Veronica Lucia & Piselli, Cristina & Pisello, Anna Laura & Salata, Ferdinando & Ferrero, Marco & Cotana, Franco & de Lieto Vollaro, Andrea, 2018. "On the impact of innovative materials on outdoor thermal comfort of pedestrians in historical urban canyons," Renewable Energy, Elsevier, vol. 118(C), pages 825-839.

    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. Guo, Chun & Wang, Mingnian & Yang, Lu & Sun, Zhitao & Zhang, Yunlong & Xu, Jianfeng, 2016. "A review of energy consumption and saving in extra-long tunnel operation ventilation in China," Renewable and Sustainable Energy Reviews, Elsevier, vol. 53(C), pages 1558-1569.
    2. Chan, Hoy-Yen & Riffat, Saffa B. & Zhu, Jie, 2010. "Review of passive solar heating and cooling technologies," Renewable and Sustainable Energy Reviews, Elsevier, vol. 14(2), pages 781-789, February.
    3. Liu, Di & Zhao, Fu-Yun & Tang, Guang-Fa, 2010. "Active low-grade energy recovery potential for building energy conservation," Renewable and Sustainable Energy Reviews, Elsevier, vol. 14(9), pages 2736-2747, December.
    4. Abdel-Salam, Mohamed R.H. & Fauchoux, Melanie & Ge, Gaoming & Besant, Robert W. & Simonson, Carey J., 2014. "Expected energy and economic benefits, and environmental impacts for liquid-to-air membrane energy exchangers (LAMEEs) in HVAC systems: A review," Applied Energy, Elsevier, vol. 127(C), pages 202-218.
    5. Abdel-Salam, Mohamed R.H. & Ge, Gaoming & Fauchoux, Melanie & Besant, Robert W. & Simonson, Carey J., 2014. "State-of-the-art in liquid-to-air membrane energy exchangers (LAMEEs): A comprehensive review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 39(C), pages 700-728.

    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:renene:v:36:y:2011:i:9:p:2494-2501. 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/renewable-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.