by U.S. Dept. of Commerce, National Bureau of Standards, National Technical Information Service, distributor in Washington, DC, [Springfield, Va .
Written in English
|Statement||B.J. McCaffrey ; sponsored by U.S. Department of Interior, Minerals Management Service.|
|Series||NBSIR -- 84-2812., NBSIR -- 2812.|
|Contributions||United States. Minerals Management Service., United States. National Bureau of Standards.|
|The Physical Object|
|Pagination||vi, 50 p. :|
|Number of Pages||50|
The results strongly underscore the sensitivity of flame suppression to the water mist's actual droplet size distribution. off of turbulent jet diffusion flames. the use of water sprays. The focus of this report is on the suppression of gas jet diffusion flames using fine water droplets. A two continuum formulation is used in which the gas phase and the water mist are both. Extinguishment of jet diffusion flame by the introduction of water sprays at the base of the flame has been studied by a number of investigators,,,,,,. These flames can be extinguished very efficiently by this technique since the normal air entrainment process assures that all the water spray added adjacent to the flame is actually Cited by: Abstract. This chapter addresses the engineering of fixed fire suppression systems that discharge water mist. The term water mist, as currently understood in the fire protection field, relates to fine water sprays with no drops larger than mm, or μm (micrometers or Cited by:
B. McCaffrey, “Jet Diffusion Flame Suppression Using Water Sprays, An Interim Report,” Combustion Science and Technology, 40, pp. – (). CrossRef Google Scholar Cited by: The dynamics of fire suppression by water sprays Fire suppression using water sprays operates on three principles: cooling of the fire plume by the evaporating water droplets; cooling of the fire surfaces and the fuel bed by the droplets that penetrate the fire plume; and cooling of the environment around the flame. 3. Primary zone injection of steam in methane-fueled, jet-stirred combustors is equally effective whether the steam enters with an air stream or with the fuel stream. 4. Water-to-fuel ratio corrected to equivalent energy content correlates NO x suppression effectiveness for turbulent diffusion flame by: 8. A spray-suppression model that captures the effects of liquid suppressant on a turbulent combusting flow is developed and applied to a turbulent diffusion flame with water spray suppression. The spray submodel is based on a stochastic separated flow approach that .
Results of laboratory experiments were verified by full-scale tests in which two types of model fire sources were extinguished by salt-solution aerosols. The tests showed that short-term action of an aerosol cloud of an aqueous solution of potassium ferricyanide K3[Fe(CN)6] on the flame front of a surface forest fire led to suppression of the gas-phase combustion, and in the case of a model Cited by: Dane Wigington Sharing shocking and inarguable film footage of jet aerosol spraying is the most powerful tool of all for waking people up to the geoengineering crimes occurring above our heads each and every day. In addition to visual tools, combining straightforward facts on the design characteristics of modern jet engines (and why their design . VanDerWege, BA and O'Brien, CJ and Hochgreb, S () Application of shear plate interferometry to jet diffusion flame temperature measurements. In: Fourth International Workshop on Combustion in Microgravity, to , NASA, Cleveland pp. J.P. Gore and C.Q. Jian, "Analytical Solution to the Flame Trajectory Based on the Analysis of 'Scaling of Buoyant Turbulent Jet Diffusion Flames' by N. Peters and J. Gottgens," Comb. Flame, Vol. 93, pp. (Brief Communication),