Energizing Kowloon East Office
122 Hoi Bun Road, Kwun Tong, Kowloon, Hong Kong
Envelope system
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Design perforated fence wall and operable windows to enhance natural ventilation at both office and courtyard. (Psychological: Controllable ventilation components provide a flexible user experience.)
Indoor air quality (IAQ)
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Qualitative spatial diagnostics
Interior system
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Provide cross-ventilated openings to utilize natural ventilation during desirable windy days.
External
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Orient the building shape to align with the annual prevailing wind direction (Southeast) in order to facilitate air ventilation. (Economic: make the most of urban natural wind to reduce cooling load, especially in summer days, and thus save more energy.)
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Quantitative spatial diagnostics
* Image source: official website of EKEO
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Simulation result indicates that the average wind speed in the internal courtyard reaches over 0.5m/s, which makes the visitors and staff feel comfortable when walking around the courtyard.
Wind speed in the courtyard
Building shape complies with the annual wind direction
Office area
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To make most of the natural wind, the building shape complies with the annual wind direction, which helps facilitate indoor air quality. Furthermore, with a 16m building setback, the prevailing wind is allowed to pass the building as much as possible. Within the setback area, the mean wind velocity is more than 0.5m/s.
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From the computational simulation result, it can be seen that in the office area, the average wind speed exceeds over 0.8 m/s, making the staff work in a place with pleasant ventilation and cooling effect. Even though in some corners the wind speed is low, the overall wind environment is satisfactory to provide good indoor air quality.