By Code Consultants Inc.
Antifreeze ideas in domestic hearth Sprinkler platforms examines the use of antifreeze options in residential sprinklers, and analyzes their effectiveness in controlling a hearth and helping in containment. The ebook additionally investigates the opportunity of a large-scale ignition taking place from options of various combos, and proposes the optimum ones for decreasing flammability.
Antifreeze options in domestic fireplace Sprinkler structures is designed for practitioners as a reference advisor for dealing with antifreeze ideas in residential sprinkler platforms. Researchers operating in a similar box also will locate the publication valuable.
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Extra resources for Antifreeze Solutions in Home Fire Sprinkler Systems
1 sprinkler supplied with water at 150 psi. This result is likely due to the test room being larger than the listed protection area of the sprinkler; however, the same test configuration with 50% glycerin solution better controlled the fire condition. 4 Number of Sprinkler Activated The UL 1626 criteria allows no more than two of the three sprinklers in the room to activate for a successful test. Figure 24, below, shows that the number of sprinklers activated met this criteria for each of the tests.
2 Sidewall Fig. 9 Sprinkler [Flow/Pressure] Fig. 2 Sidewall 32 IV Phase II Test Results All of the tests remained well below the temperature criteria specified in UL 1626. The maximum temperature for water and 50% glycerin were each slightly higher than 125°F compared with a criteria of 200°F. 2 sidewall sprinkler were nearly the same. The results for the 2 minute temperature criteria in the tests at 80 psi and 150 psi show somewhat higher temperatures with the 50% glycerin solution compared with water.
1 Sprinkler at 20' Above Floor Pressure at Sprinkler Heat Release Rate (kW) 180 160 3,000 140 2,500 120 2,000 100 80 1,500 60 1,000 40 20 500 0 0 60 120 180 240 300 360 420 Time (seconds) 480 540 -20 600 Fig. 1 sprinkler at 20 ft Sprinkler Operating Pressure (psi) Heat Release Rate 3,500 28 IV Phase II Test Results 3 Sprinkler Height Tests were conducted for solutions of 40%, 50% and 60% propylene glycol for sprinkler heights of 8 feet and 20 feet. Results of the tests are summarized in Fig. 18, below, which shows the increase in heat release rate due to the change in ceiling height for each antifreeze solution using the same sprinkler and ignition source.