TY - GEN
T1 - Numerical Study on the Effect of Single and Multi-injection Pressurized Fan in Enclosed Stairwell of High-Rise Building
AU - Alianto, Beline
AU - Nasruddin, null
AU - Nugroho, Yulianto Sulistyo
N1 - Funding Information:
The authors would like to thank the financial support provided by the Ministry of Research, Technology, and Higher Education of the Republic of Indonesia through Penelitian Terapan Unggulan Perguruan Tinggi (PTUPT) 2019?2020 funding scheme managed by the Directorate for Research and Public Services (DRPM) Universitas Indonesia.
Publisher Copyright:
© 2022, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.
PY - 2022
Y1 - 2022
N2 - This study aimed to evaluate the pressure difference distribution across the escape stair in a 24-story stairwell. A large eddy simulation (LES) method was used to model the pressure in a stairwell model with a set of simulation parameters using FDS (Fire Dynamic Simulator) software. Two configurations of fans involved single injection, and multiple fan injection is observed. A Single-injection fan is located on the highest point of the stair. The double injection system consists of two fans and is separated at 45 m at each other. When the fire alarm is activated, the pressurization fan automatically runs and delivered outdoor air to the stairwell. It is commonly acknowledged that the pressure would start to built-up in the stairwell before the occupants entering the stair by open the door. Besides, when the pressure is significantly high, the door is unable to be open from outside by occupants as a consequence. In order to overcome this issue, a pressure relief damper was then installed on the top of the stair. The numerical study shows possible pressure difference in the stairwell is about 50 and 95 Pa. However, a multi injection system has the advantages of proper pressure distribution along the stairwell. Performance-based design by using numerical computation is a valuable tool to predict the engineering system and presents a better understanding of how the system would perform in design.
AB - This study aimed to evaluate the pressure difference distribution across the escape stair in a 24-story stairwell. A large eddy simulation (LES) method was used to model the pressure in a stairwell model with a set of simulation parameters using FDS (Fire Dynamic Simulator) software. Two configurations of fans involved single injection, and multiple fan injection is observed. A Single-injection fan is located on the highest point of the stair. The double injection system consists of two fans and is separated at 45 m at each other. When the fire alarm is activated, the pressurization fan automatically runs and delivered outdoor air to the stairwell. It is commonly acknowledged that the pressure would start to built-up in the stairwell before the occupants entering the stair by open the door. Besides, when the pressure is significantly high, the door is unable to be open from outside by occupants as a consequence. In order to overcome this issue, a pressure relief damper was then installed on the top of the stair. The numerical study shows possible pressure difference in the stairwell is about 50 and 95 Pa. However, a multi injection system has the advantages of proper pressure distribution along the stairwell. Performance-based design by using numerical computation is a valuable tool to predict the engineering system and presents a better understanding of how the system would perform in design.
KW - Multi-injection
KW - Pressure difference
KW - Pressurization
KW - Single-injection
KW - Stairwell
UR - http://www.scopus.com/inward/record.url?scp=85113744561&partnerID=8YFLogxK
U2 - 10.1007/978-981-16-2329-5_12
DO - 10.1007/978-981-16-2329-5_12
M3 - Conference contribution
AN - SCOPUS:85113744561
SN - 9789811623288
T3 - Lecture Notes in Civil Engineering
SP - 99
EP - 105
BT - Sustainable Architecture and Building Environment - Proceedings of ICSDEMS 2020
A2 - Yola, Lin
A2 - Nangkula, Utaberta
A2 - Ayegbusi, Olutobi Gbenga
A2 - Awang, Mokhtar
PB - Springer Science and Business Media Deutschland GmbH
T2 - International Conference on Sustainable Design, Engineering, Management, and Sciences, ICSDEMS 2020
Y2 - 8 December 2020 through 9 December 2020
ER -