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Assessment of Outdoor Air Temperature with Different Shaded Area within an Urban University Campus in Hot-Humid Climate

Author

Listed:
  • Sheikh Ahmad Zaki

    (Malaysia-Japan International Institute of Technology, Universiti Teknologi Malaysia, Kuala Lumpur 54100, Malaysia)

  • Siti Wan Syahidah

    (Malaysia-Japan International Institute of Technology, Universiti Teknologi Malaysia, Kuala Lumpur 54100, Malaysia)

  • Mohd Fairuz Shahidan

    (Faculty of Design and Architecture, Universiti Putra Malaysia, Serdang 43400, Malaysia)

  • Mardiana Idayu Ahmad

    (Environmental Technology Division, School of Industrial Technology, Universiti Sains Malaysia, Penang 11800, Malaysia)

  • Fitri Yakub

    (Malaysia-Japan International Institute of Technology, Universiti Teknologi Malaysia, Kuala Lumpur 54100, Malaysia)

  • Mohamad Zaki Hassan

    (Razak Faculty of Technology and Informatics, Universiti Teknologi Malaysia, Jalan Semarak, Kuala Lumpur 54100, Malaysia)

  • Mohd Yusof Md Daud

    (Razak Faculty of Technology and Informatics, Universiti Teknologi Malaysia, Jalan Semarak, Kuala Lumpur 54100, Malaysia)

Abstract

This study investigated the variation of outdoor air temperature in the shaded area covered by buildings in an urban university campus in Malaysia. In-situ field measurements were conducted to measure the distribution of outdoor air temperature at eight different locations for seven days. Meanwhile, the building-induced shadows were generated using the AutoCAD Revit software to investigate the air temperature change. The study used four urban morphological parameters namely building to greenery ratio, sky view factor (SVF), and height-to-street width ( H / W ) ratio. The relationship between building-induced shadow and outdoor air temperature ( T out ) obtained from the in-situ measurement was investigated. The results showed that the building-induced shadows could lower air temperature. It can be noted that a high ratio of building to greenery resulted in a higher air temperature. In contrast, the area with a low SVF value due to the combination of prolonged shading by buildings and trees had a lower air temperature. Thus, the area with a high building ratio, low greenery ratio, higher SVF value, and low H / W ratio potentially has a higher outdoor air temperature. Conclusively, combination of building shading created by appropriate ratio of building morphology and sufficient greenery able to improve the microclimate of a campus area.

Suggested Citation

  • Sheikh Ahmad Zaki & Siti Wan Syahidah & Mohd Fairuz Shahidan & Mardiana Idayu Ahmad & Fitri Yakub & Mohamad Zaki Hassan & Mohd Yusof Md Daud, 2020. "Assessment of Outdoor Air Temperature with Different Shaded Area within an Urban University Campus in Hot-Humid Climate," Sustainability, MDPI, vol. 12(14), pages 1-24, July.
    • Handle: RePEc:gam:jsusta:v:12:y:2020:i:14:p:5741-:d:385668
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    References listed on IDEAS

    as
    1. Sheikh Ahmad Zaki & Hai Jian Toh & Fitri Yakub & Ahmad Shakir Mohd Saudi & Jorge Alfredo Ardila-Rey & Firdaus Muhammad-Sukki, 2020. "Effects of Roadside Trees and Road Orientation on Thermal Environment in a Tropical City," Sustainability, MDPI, vol. 12(3), pages 1-23, February.
    2. Bourbia, F. & Boucheriba, F., 2010. "Impact of street design on urban microclimate for semi arid climate (Constantine)," Renewable Energy, Elsevier, vol. 35(2), pages 343-347.
    3. Bourbia, F & Awbi, H.B, 2004. "Building cluster and shading in urban canyon for hot dry climate," Renewable Energy, Elsevier, vol. 29(2), pages 249-262.
    4. Sheikh Ahmad Zaki & Nurnida Elmira Othman & Siti Wan Syahidah & Fitri Yakub & Firdaus Muhammad-Sukki & Jorge Alfredo Ardila-Rey & Mohd Fairuz Shahidan & Ahmad Shakir Mohd Saudi, 2020. "Effects of Urban Morphology on Microclimate Parameters in an Urban University Campus," Sustainability, MDPI, vol. 12(7), pages 1-17, April.
    5. Jamei, Elmira & Rajagopalan, Priyadarsini & Seyedmahmoudian, Mohammadmehdi & Jamei, Yashar, 2016. "Review on the impact of urban geometry and pedestrian level greening on outdoor thermal comfort," Renewable and Sustainable Energy Reviews, Elsevier, vol. 54(C), pages 1002-1017.
    6. Bourbia, F & Awbi, H.B, 2004. "Building cluster and shading in urban canyon for hot dry climate," Renewable Energy, Elsevier, vol. 29(2), pages 291-301.
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    Cited by:

    1. Ruixin Li & Yiwan Zhao & Gaochong Lv & Weilin Li & Jiayin Zhu & Olga L. Bantserova, 2021. "Thermal Performance Analysis of Heat Collection Wall in High-Rise Building Based on the Measurement of Near-Wall Microclimate," Energies, MDPI, vol. 14(7), pages 1-24, April.
    2. Boni Sena & Sheikh Ahmad Zaki & Hom Bahadur Rijal & Jorge Alfredo Ardila-Rey & Nelidya Md Yusoff & Fitri Yakub & Farah Liana & Mohamad Zaki Hassan, 2021. "Development of an Electrical Energy Consumption Model for Malaysian Households, Based on Techno-Socioeconomic Determinant Factors," Sustainability, MDPI, vol. 13(23), pages 1-22, November.
    3. Sheikh Ahmad Zaki & Nor Suhada Azid & Mohd Fairuz Shahidan & Mohamad Zaki Hassan & Mohd Yusof Md Daud & Nor Azlina Abu Bakar & Mohamed Sukri Mat Ali & Fitri Yakub, 2020. "Analysis of Urban Morphological Effect on the Microclimate of the Urban Residential Area of Kampung Baru in Kuala Lumpur Using a Geospatial Approach," Sustainability, MDPI, vol. 12(18), pages 1-29, September.

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