The effect of smoke venting on the operation of sprinklers subsequent to the first

Experimental investigation on drag effect of sprinkler spray to adjacent horizontal natural smoke venting

“…Since then, many large scale experiments were conducted by Suchomel [14], Waterman [15], Hinkley [16], Sheppard [17] and McGrattan [8] respectively to investigate the interaction between the sprinklers system and the vents system. Numerical studies on interaction of roof vents and sprinklers were also carried out by Heselden [18], Hinkley [19,20], Chow [21], McGrattan [8] and Cooper [22,23]. Most of these studies focused on how roof vents affect the activation time, number and location of operating sprinklers; or how the sprinklers affect the activation time and number of automatic roof vents.…”

Numerical study of water spray interaction with fire plume in dual chambers connected to tall shaft

“…However there are concerns about the performance of smoke vents under water sprays, since drag force from falling water droplets opposes smoke buoyancy force and affects discharge rate through vents. The research investigations on interactions between sprinkler sprays with fire plume in vented enclosures have received considerable attention in the literature [1][2][3][4]. Their study determined that water sprays pull smoke layer downwards until it reaches the floor and leads to smoke logging.…”

A Mathematical Model of the Drag Component of a Sprinkler Spray Adjacent to Horizontal Smoke Vents

“…Since then, large scale experiments have been conducted by Suchomel [11], Waterman et al [12], Hinkley et al [13], Sheppard and Steppan [14] and McGrattan et al [5] to investigate the interaction between sprinklers and smoke vents. Numerical work on the interaction of roof vents and sprinklers has also been studied by Heselden [15], Hinkley [16,17], Chow and Cheung [18], McGrattan et al [5] and Cooper [19,20]. However most of these experimental and numerical studies focused on how roof vents affect the activation time, number, and location of operating sprinklers; or how sprinklers affect the activation time and number of operating automatic roof vents.…”