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Passive Cooling
Passive Cooling
Passive Cooling
Passive Cooling
Passive Cooling
Passive Cooling
Passive Cooling
Passive Cooling
Passive Cooling
Passive Cooling
Passive Cooling
Passive Cooling
Passive Cooling
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Passive Cooling

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A.Alliance Design International

A.Alliance Design International

Published in: Design, Business, Technology
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  • night flushing(using cold night air to ventilate a building and cool its thermal mass) is preferable for places where there is a greater temperature difference between daytime and nighttime temperatures.
  • evaporative cooling(which adds moisture to the air) works best when the air is dryerbreezes flowing under the raised building create evaporative cooling currents that push air up through atria and open stairwells.
  • Transcript

    • 1. contents bio-mimicry passive downdraft evaporative cooling step pool jaalis alterable façade deep water source cooling curtain wall “green” screen
    • 2. Bio-mimicry: The Termite Mound • Utilises vents to circulate air • Circulated air regulates temperature of mound • E.g. Eastgate Centre, Harare
    • 3. How the “Termite Mound” works
    • 4. Passive Downdraft Evaporative Cooling (aka Wind Catching) • Uses water bodies within building & chimneys that capture wind • Captured wind passes over cooled structures for cooling • The wind is then circulated around the building to regulate heat
    • 5. Step Pool (aka Baolis) • Centralised pool in the courtyard of the building • Evaporation of water for Heat removal • E.g. Pearl Academy of Fashion by Morphogenesis
    • 6. Jaalis (Jalis) aka perforated stone • Traditional tiles that laced buildings • Blocks sunlight but allows air to flow through • Practical & Ornate
    • 7. Modern Applications of Jaalis • E.g. Pearl Academy of Fashion by Morphogenesis • The Jara Mashrabiya Tile; uses hollow tiles and water to regulate heat flow.
    • 8. Alterable Facade • Removable shading devices above the courtyards provide solar protection in summer • In winter the operation is reversed, opening during the day to capture solar gains
    • 9. Deep Water Source Cooling • Toronto: Cool water is pumped from a 5 km depth in Lake Ontario to participating office buildings and through metal coils. • Fans blow the cool air from the coils into the buildings‟ climate- control systems • A project using this technology is about to break ground in Honolulu and will use seawater.
    • 10. Curtain Wall • Architect Shigeru Ban‟s literal interpretation of the architectural term “Curtain Wall” • Movable curtains act as a „foldable‟ wall that provides shade & ingenious architecture
    • 11. “Green” Screen • A House in Saitama, Japan • Utilises a foliage of Climbing plants as shelter • Plants acts as Perforated screen allowing air flow & shading
    • 12. The End Copyright Disclaimer Under Section 107 of the Copyright Act 1976, allowance is made for fair use for purposes such as criticism, comment, news reporting, teaching, scholarship, and research. Fair use is a use permitted by copyright statute that might otherwise be infringing for non-profit, educational or personal use. In the case of inaccurate information, A.Alliance Design International is not responsible for any misrepresentation.

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