Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6700895 | Building and Environment | 2013 | 16 Pages |
Abstract
Five semi-open roof types are studied: Walls being hung above street roofs (coverage ratio λa = 100%) at z = 1.5H, 1.2H, 1.1H ('Hung1.5H', 'Hung1.2H', 'Hung1.1H' types); Walls partly covering street roofs (λa = 80%) at z = H ('Partly-covered' type); Walls fully covering street roofs (λa = 100%) at z = H ('Fully-covered' type). They basically obtain worse UCL ventilation than open street roof type due to the decreased roof ventilation. 'Hung1.1H', 'Hung1.2H', 'Hung1.5H' types are better designs than 'Fully-covered' and 'Partly-covered' types. Greater urban size contains larger UCL volume and requires longer time to ventilate. The methodologies and ventilation indices are confirmed effective to quantify UCL ventilation.
Related Topics
Physical Sciences and Engineering
Energy
Renewable Energy, Sustainability and the Environment
Authors
Jian Hang, Zhiwen Luo, Mats Sandberg, Jian Gong,