Diversified façade architecture for optimizing air flow in tall residential buildings in tropics: a field investigation based on a literature review

  • YEAR
    2018
  • AUTHORS
    Rodrigo, Supun
    Rajapaksha, Upendra
  • CATEGORIES
    2018 Conference Papers
    Architectural Science: Architecture, Design and Environment
    Conference Papers

Extract

In this paper, a theoretical framework was developed to assess optimization of diverse vertical wind climate in tall, residential buildings in enhancing indoor comfort. A total of 200 papers were reviewed in respect to two subject areas; i.e. preferred air speeds for indoor comfort and vertical climatic behaviour around high-rise buildings. Both subject areas were then combined to create an air-flow responsive Theoretical High-rise Model (THM) in relation to a tropical, tall residential building, as the base framework. The TMH reveals that the façade should be integrated with different interventions when responding to both, the diversity of wind climate around the building and its height. The evaluation involved assessing of design strategies employed on buildings in 3 key areas: reducing internal heat gain, enhancing preferred air flow distribution across the unit layout and utilizing the vertical climate diversity to harness the preferred air speed along the full height. Results from the field investigation on 43 residential buildings revealed that buildings that do exist in the studied context have poor implementation of design strategies, when it comes to harness the vertical wind climate for preferred air flow speed with building height. Furthermore, it was found that uniform facades, repetitive floors and symmetrical building forms were found to be most common building characteristics in this building population which is contrary to the projections by the THM.

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