TY - GEN
T1 - Study on environment conscious technologies at a super tall building
T2 - 16th Conference of the International Society of Indoor Air Quality and Climate: Creative and Smart Solutions for Better Built Environments, Indoor Air 2020
AU - Matsushita, Toshiyuki
AU - Akimoto, Takashi
AU - Inomata, Ryosuke
AU - Hatori, Daisuke
AU - Takanishi, Shigeaki
AU - Nakamura, Shunsuke
N1 - Publisher Copyright:
© 2020 16th Conference of the International Society of Indoor Air Quality and Climate: Creative and Smart Solutions for Better Built Environments, Indoor Air 2020. All rights reserved.
PY - 2020
Y1 - 2020
N2 - In this report, we focused on the updraft caused by hot air that may occur in the double skin cavity introduced as a load reduction policy, and examined the possibility of Dynamic Draft Skin System (DDSS) a natural ventilation system that attracts high-rise clean outside air to lower layers. We examined the introduction of DDSS for a super tall building scheduled for completion in Japan using computational fluid dynamics (CFD) analysis; nine cases were examined by changing the cross-sectional area of the circulation ducts (CD), opening areas of the double skin, and increasing the number of CDs. From the results, at maximum solar radiation, there was high-temperature air (approximately 50°C) in the upper part of the double skin, and the effect of attracting outside air by the updraft was confirmed.
AB - In this report, we focused on the updraft caused by hot air that may occur in the double skin cavity introduced as a load reduction policy, and examined the possibility of Dynamic Draft Skin System (DDSS) a natural ventilation system that attracts high-rise clean outside air to lower layers. We examined the introduction of DDSS for a super tall building scheduled for completion in Japan using computational fluid dynamics (CFD) analysis; nine cases were examined by changing the cross-sectional area of the circulation ducts (CD), opening areas of the double skin, and increasing the number of CDs. From the results, at maximum solar radiation, there was high-temperature air (approximately 50°C) in the upper part of the double skin, and the effect of attracting outside air by the updraft was confirmed.
KW - CFD analysis
KW - Double skin
KW - Natural ventilation
KW - Negative pressure
KW - Super tall building
UR - http://www.scopus.com/inward/record.url?scp=85101606462&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85101606462&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:85101606462
T3 - 16th Conference of the International Society of Indoor Air Quality and Climate: Creative and Smart Solutions for Better Built Environments, Indoor Air 2020
BT - 16th Conference of the International Society of Indoor Air Quality and Climate
PB - International Society of Indoor Air Quality and Climate
Y2 - 1 November 2020
ER -