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A Study on Sun Chui Shopping Centre. Natural Ventilation and Daylighting Design. Lee Lap Cho, Eldon 1155008260. Sun Chui Shopping Centre. Built: 1983 No. of Storey : 2 Total GFA: About 5,400m 2. Sun Chui Shopping Centre. Sun Chui Shopping Centre. LEED Assessment. LEED Assessment.
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A Study on Sun Chui Shopping Centre Natural Ventilation and DaylightingDesign Lee Lap Cho, Eldon 1155008260
Sun Chui Shopping Centre • Built: 1983 • No. of Storey: 2 • Total GFA: About 5,400m2
LEED Assessment • IEQ Credit 2: Increased Ventilation • IEQ Credit 8.1: Daylightand Views—Daylight
IEQ Credit 2: Increased Ventilation • The required minimum internal air speed calculated = 0.9m/s • Requirement: Exceeding by 30% the minimum outside air requirements set by ASHRAE 62.1-2004.
AVA - Hot Still Day Scenario G/F -Air Velocity :0.5m/s East,25 DegC at 1.5m high above (floor level)
IEQ Credit 8.1: Daylight and Views—Daylight Requirement: 75% (1 point) or 90% (2 points) or more of all regularly occupied spaces achieve daylight illuminance levels of a minimum of 25 fc and a maximum of 500 fc in a clear-sky condition on September 21 at 9 a.m. and 3 p.m.
Shadowing Analysis Shadow Range of the surrounding buildings Sun-path: September 21 at 3 p.m.
Conclusion • IEQ Credit 2: Increased Ventilation r • Surrounding high buildings reduce the available wind to building. r • Vertical distance between openings; vertical distance should be as great as possible: “Chimney" effect . a
Conclusion • IEQ Credit 8.1: Daylight and Views-Daylight a • Sufficient general lighting to create a pleasant and suitable internal environment a • The relationship between the height of the building and the diffusing quality of the skylight to provide good general light at ground level. a