نوع مقاله : مقاله علمی
نویسندگان
1 استادیار، گروه مهندسی مکانیک، دانشگاه فنی و حرفه ای، تهران، ایران
2 گروه مکانیک ، دانشگاه خیام، مشهد
چکیده
کلیدواژهها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
It Is Important to Prevention of Freezing of Water in Fire fighting System in Building on Winter Season. For This Reason Dry Sprinkler Systems Is Used .In This Method Instead of Water, Air or Nitrogen Is Used on System.When Bulb Burst Pressure Drop Occurs on System and Fire Pump Infuse Water to Systems and so According to Standard, Water Should be Reach to Furthest Sprinkler in Specific Time. Nowadays this Time It Is not Satisfied and not Cconsonant with Standards of Fire Fighting Systems. In This Research with Using Fluent Soft Ware and Increasing Air Volume in System and Changing on the Structural of the Sprinkler and Nozzle Angel, with Increasing Air Speed Outlet, Time of Discharge Water to Furthest Consumer Decrease . Results Show with Change of Angel the Converge Angel to 60 and the Diverge Angel to 15 Instead of Standard Tyco manufacturing Speed of Air in Outlet Sprinkler 60 Percentage Increased.
کلیدواژهها [English]
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