By Code Consultants Inc.
Antifreeze recommendations in domestic hearth Sprinkler platforms examines using antifreeze ideas in residential sprinklers, and analyzes their effectiveness in controlling a fireplace and assisting in containment. The booklet additionally investigates the potential for a large-scale ignition happening from options of various combinations, and proposes the optimum ones for decreasing flammability.
Antifreeze suggestions in domestic hearth Sprinkler structures is designed for practitioners as a reference consultant for dealing with antifreeze options in residential sprinkler structures. Researchers operating in a comparable box also will locate the publication valuable.
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Antifreeze ideas in domestic fireplace Sprinkler structures examines using antifreeze strategies in residential sprinklers, and analyzes their effectiveness in controlling a fireplace and assisting in containment. The e-book additionally investigates the opportunity of a large-scale ignition happening from suggestions of various combinations, and proposes the optimum ones for lowering flammability.
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Additional info for Antifreeze Solutions in Home Fire Sprinkler Systems
D. D. H. Twilley, “Determination of Water Spray Drop Size and Speed from a Standard Oriﬁce, Pendent Spray Sprinkler,” National Institute of Standards and Technology, Gaithersburg, MD, FR4003 Sept. 1995, rev. May 1999. 21. F. Widmann, “Characterization of a Residential Fire Sprinkler Using Phase Doppler Interferometry,” National Institute of Standards and Technology, Gaithersburg, MD, NISTIR 6561, 2000. 22. , “Summary of Fire Test Data for Phase II Research of Antifreeze Solutions in Home Fire Sprinkler Systems,” Northbrook, IL, September 7, 2010.
A research effort would be needed to correlate the results of any such small or medium scale test with the results of this or other full scale testing. The investigation of a small or medium scale test might also provide additional insight into the droplet size distributions that increase the potential for ignition. D Develop a Listing Standard for Solutions Introduced into Sprinkler Systems NFPA 13 currently only permits glycerin or propylene glycol antifreeze solutions to be used in antifreeze sprinkler systems connected to potable water supplies.
15, below, which shows the increase in heat release rate due to the application of each antifreeze solution using the same sprinkler and ignition source. 9 Concealed Sprinkler 40% Propylene Glycol 50% Glycerin 45% Propylene Glycol 55% Glycerin 50% Propylene Glycol 7,000 6,000 5,000 4,000 3,000 2,000 1,000 0 0 10 20 30 40 50 60 70 -1,000 -2,000 Sprinkler Flow Rate (gpm) Fig. 15 Increase in fire size for various antifreeze solutions The results presented above show increases in heat release rate of more than 6,000 kW or 500% for the 50% propylene glycol and 55% glycerin solutions at certain flow rates.
Antifreeze Solutions in Home Fire Sprinkler Systems by Code Consultants Inc.