TITLE:
Design of Mechanical Smoke Exhaust System in Large Space of Convention Center
AUTHORS:
Jung-Yup Kim, Chan-Sol Ahn
KEYWORDS:
Smoke Control, Mechanical Exhaust System, Large Space, Convention Center, Numerical Analysis
JOURNAL NAME:
Open Journal of Fluid Dynamics,
Vol.7 No.3,
September
28,
2017
ABSTRACT: The volumetric flow rate of smoke generated from the fire in large space often
reaches to hundreds of thousands CMH because of extended floor height and
as it’s more difficult to isolate the smoke to the limited area, comparing to
normal-scale building, design and operation of effective smoke control system
for large space is more than important. In this study, with the analysis model
for such a large space as exhibition hall or conference room in conventional
center, design of mechanical smoke exhaust system was conducted based on
currently-available design standard which was then followed by numerical
analysis of the design using 3D numerical analysis method. For conference
room at 2.0 MW heat release rate, 99,173 CMH flow rate is required, if smoke
layer is maintained at 60% of the floor height and for exhibition hall at 8.8
MW with 80% of floor height, flow rate required is 219,802 CMH, which are
incorporated into the design. In view of 3D numerical analysis, accuracy of
the design according to algebraic expression is sufficient.