Using the central ventilation shaft design within public buildings for natural aeration enhancement

Challenges in the low-carbon adaptation of China’s apartment towers

“…More complex geometry in a single isolated building has also been numerically studied to quantify the efficiency of natural ventilation in more realistic building configurations (Carrilho Da Graca, Chen, Glicksman, & Norford, 2002;Essah, Yao, & Short, 2017;Hajdukiewicz, Geron, & Keane, 2013;Muhsin, Yusoff, Mohamed, & Sapian, 2017;Short, Noakes, Gilkeson, & Fair, 2014;Tong, Chen, Malkawi, Adamkiewicz, & Spengler, 2016;Wang & Wong, 2008;Wu, Yang, Tseng, & Liu, 2011;Yang, Wen, Juan, Su, & Wu, 2014).…”

“…A ventilation shaft (or chimney) consists of a vertical space used to create a passage for encouraging vertical air circulation (Chiu & Etheridge, 2007;Lomas, 2007;Prajongsan & Sharples, 2012;Priyadarsini, Cheong, & Wong, 2004;Short, Lomas, et al, 2012;Short, Yao, Luo, & Li, 2012;Yang et al, 2014). The stack can be active (with a fan at the top, for example) or passive (Priyadarsini et al, 2004) for buildings where only single-sided ventilation could otherwise be performed.…”

“…The stack can be active (with a fan at the top, for example) or passive (Priyadarsini et al, 2004) for buildings where only single-sided ventilation could otherwise be performed. Judiciously applied, this system permits the occupant to be more comfortable during warm summer conditions (Prajongsan & Sharples, 2012;Yang et al, 2014), reducing AC energy consumption (Prajongsan & Sharples, 2012). The efficiency of the stack is affected by the area of the openings (Priyadarsini et al, 2004) and the height of the stack (Lomas, 2007).…”

Review on pollutant dispersion in urban areas-part A: Effects of mechanical factors and urban morphology

“…A literature review indicates that the urban wind environment has high spatial variation and strongly depends on the characteristics of the urban texture features [19,[148][149][150][151][152][153]. Once traffic emissions are discharged into the atmosphere, the distribution of air pollution is considerably affected by the urban morphology [154][155][156][157][158].…”

The hot summer-cold winter region in China: Challenges in the low carbon adaptation of residential slab buildings to enhance comfort

“…The natural ventilation of a building can be enhanced using elements and/or features such as wind tower, windcatcher, ventilation shaft or chimney ( [13], [14]). Chimneys (stacks) consist of a vertical space to create a passage for facilitating air circulation towards the outdoor ( [11], [15], [16], [17], [18], [19], [20]) helping to improve the indoor thermal comfort during hot summers ( [15], [17]), while reducing the air-conditioning energy consumption [17]. Three cylindrical stacks, each of them linked to seven floors of a tower building located in Hangzhou, have been presented in [6] with promising efficiency in enhancing the natural ventilation flows.…”