SENG 677 Course_Project_Presentation_Simon

Automatic Fire Sprinkler systems : 

Automatic Fire Sprinkler systems - Nithin Simon

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The concept dates back to the 1800s English inventor John Carey in 1806 developed a heat-operated system that distributed water through perforated pipes to extinguish a fire. First sprinkler head was invented in 1864 by Major Stewart Harrison of London First practical modern sprinkler head was developed ten years later by Henry Parmelee of New Haven,Connecticut . Origin and Development

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NFPA 13R - Installation of Sprinkler Systems in Residential Occupancies Up to and Including Four Stories in Height. NFPA 13D - Installation of Sprinkler Systems in One- and Two-family Dwellings and Manufactured Homes Origin and Development NFPA - 1896

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The idea behind the automatic fire sprinkler system actually hasn’t changed much since its inception. considerable amount of attention and credibility,over the past 25 years, due in part to organizations such as AFSA and NFPA that promote public awareness about the systems and the public’s growing concern with its own safety. One of the biggest successes of recent years is the amount of legislation passing in favor of automatic fire sprinkler systems. Current Systems

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The systems can be classified in two basic categories, residential and commercial, with four basic types of fire sprinkler systems: Wet Pipe Systems: Dry Pipe Systems: Preaction Systems : Deluge systems: Current Systems

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Sprinkler Parts

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Frame. The frame provides the main structural component which holds the sprinkler together. Thermal linkage. The thermal linkage is the component that controls water release. Cap. The cap provides the water tight seal which is located over the sprinkler orifice. Orifice . The machined opening at the base of the sprinkler frame is the orifice from which extinguishing water flows. Deflector. The deflector is mounted on the frame opposite the orifice. Its purpose is to break up the water stream discharging from the orifice into a more efficient extinguishing pattern. Sprinkler Parts

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Home fire sprinklers require very little maintenance. It’s essential to keep the water valve turned on, so a simple visual inspection should be done routinely to ensure the valve is open. Every home sprinkler system should have a water flow test on a regular basis. It’s a simple test that can be done by the homeowner or a fire sprinkler contractor. The national sprinkler installation standard provides guidance for proper installation in cold regions, including appropriate additional insulation and anti-freeze usage. Installation and Maintenance

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Fire sprinkler installations are governed by codes and standards. In general, a code (building code, fire code, Life Safety Code® , etc.) defines when and where fire sprinklers must be installed. Installation and Maintenance

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Water damage from a fire sprinkler system is generally much less severe than the damage caused by water from fire-fighting hose lines or smoke and fire damage if the fire goes unabated. Smoke detectors can save lives by providing a warning system but can do nothing to extinguish a fire or protect those physically unable to escape on their own, such as the elderly or small children. The cost associated with installing an automatic fire sprinkler system depends on several factors such as the location, size, type of construction and intended use of the structure. Advantages of Sprinkler System

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Future Potential More and more homebuilders are encouraging the installation of fire sprinkler systems by taking advantage of building incentives and trade-ups that work in their favor.

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NFPA has been conducting a number of surveys. 70% of the respondents did not think smoke alarms were enough protection to home occupants in the event of a fire. 93% said saving lives was a key benefit. Other key benefits included protection of firefighters, and financial incentives. 69% were not aware that home fire sprinklers are now included in the national model codes for new one- and two- family construction. 63% of legislators surveyed thought home fire sprinkler minimum standards of safety should be mandated. 60% of legislators surveyed did not think home fire sprinkler mandates would negatively impact housing in their state. Future Potential

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Probability of a standard sprinkler discharging accidentally due to manufacturing defects is only 1 in 16 million sprinklers per year in service. An intelligent fire sprinkler systems (on/off) is also getting more attention these days especially in museums and libraries where damage from damage is costlier. The Fike Micromist ® fire suppression system produces a fine mist to extinguish fires quickly, with very little residual water. This system releases 100 times less water than traditional sprinkler systems, yet effectively extinguishes the fire. Future Potential

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Thank You !