000			01927nab a2200205 4500
005			20260520000833.0
008			260224s2010 xxu
245	0	0	_aInvestigations of sprinkler sprays on fire induced doorway flows
260			_a _b _cabr. 2010
270			_a05/05/2010 ; 05/05/2010
300			_a15 p. ; 347-362
520			_aPerformance based methodologies are becoming increasingly common in fire safety due to the inability of prescriptive codes to account for every architectural feature. Fire Sprinkler suppression systems have long been used to provide property protection and enhance life safety. However, very few methodologies exist to account for the impact of sprinkler sprays on fire scenarios. Current methods are extremely complicated and difficult to use as an engineering tool for performance based design. Twenty-four full scale fire tests were conducted at Tyco Fire Suppression & Building Products Global Technology Center to determine a simple method for accounting for the impact of a single residential sprinkler on fire induced doorway flows. It was found that a spraying sprinkler reduced the mass flows at the doorway while maintaining two stratified layers away from the sprinkler spray. The mass flow reduction was consistent and could be predicted through the use of a simple buoyancy based equation. The current study suggests that the buoyancy equation can be altered through the use of a constant cooling coefficient (equal to 0.84 for a Tyco LFII (TY2234) sprinkler) based on the test results reported in this paper. This study is a proof of concept and the results suggest the methodology can be applicable to similar situations.
581			_a2
773	0		_tFire Technology _g46
942			_cARTICULO
100	1		_aCrocker, Jeremiah P. _942108
100	1		_aRangwala, Ali S. _942109
100	1		_aDembsey, Nicholas A. _942110
999			_c170674 _d170674