@Article{hmt.20.2,
AUTHOR = {HM Iqbal Mahmud
, Vijay Rajaram, Khalid Moinuddin},
TITLE = {THE EFFECTS OF VARIATION IN SHAPE OF SMOKE RESERVOIRS  AND NUMBERS AND DISTRIBUTION OF SMOKE EXTRACTION  POINTS ON THE TENABILITY WITHIN A COMPARTMENT},
JOURNAL = {Frontiers in Heat and Mass Transfer},
VOLUME = {20},
YEAR = {2023},
NUMBER = {1},
PAGES = {1--17},
URL = {http://www.techscience.com/fhmt/v20n1/52364},
ISSN = {2151-8629},
ABSTRACT = {This study has examined some important aspects of the engineered smoke control system, namely the shape of smoke reservoirs and the quantity and 
distribution of smoke extract points within a smoke compartment. Three different shapes of smoke reservoirs have been selected for analysis, namely 
square, rectangular, and T-shaped. The shape of the smoke reservoir has been varied, but the area, length and height have been kept identical. Four 
different configurations of extract points have been used in each shape of the reservoir: a single extract point located at the corner of the smoke 
reservoir, a single extract point located at the centre of the smoke reservoir, two extract points evenly distributed within the smoke reservoir and four 
extract points distributed within the reservoir. These configurations were implemented in three different shaped reservoirs: square, rectangular and Tshaped. The area, length and height of the reservoirs have been kept identical. In this work, the design parameters such as area and length of the 
reservoir, extract rate of smoke, replacement of air in the reservoir and other parameters have been stipulated from the Singapore Fire Code and 
Building Research Establishment Report. Fire Dynamics Simulator (FDS) model has been employed for this research, and results show that 
variations in the shape of smoke reservoirs or quantity and distribution of smoke extract points do have an effect on the tenability within the smoke 
compartment. Generally, it has been found that the untenable conditions within a square-shaped smoke reservoir increased at the slowest rate, given 
the fact that the smoke compartment is symmetrically shaped with equal dimensions on all four sides of the compartment. The smoke compartment 
with the most number of bends, i.e. the T-shaped smoke reservoir, has shown that the untenable conditions increase at the fastest rate, followed by 
the most elongated shaped smoke compartment (i.e. rectangular). For the other part of the research, results have shown that the provision of four 
extract points evenly distributed within the smoke reservoir resulted in the most favourably stable smoke layer and the untenable conditions within 
the smoke compartment increased at the slowest rate. However, one vent in the centre shows a better outcome than two evenly distributed points. It 
has been exhibited in this research that varying the shape of the smoke reservoirs, the quantity and/or the distribution of smoke extract points does 
affect its tenability within a smoke compartment. A sensitivity analysis has confirmed these findings.},
DOI = {10.5098/hmt.20.2}
}