Table 1. The four components required for a fire are: Fuel; Oxidizing Agent; Heat; and; Uninhibited Chemical Chain Reaction.
• For a fire to occur, four components must be present: fuel, oxidizing agent, heat, and an uninhibited chemical chain reaction. Take away any one of these elements, and the fire cannot exist or will be extinguished if it was already burning. You can usually find them in hallways, laundry rooms, meeting rooms, kitchens, mechanical/electrical rooms, and near exit doors. This theory is known as the fire tetrahedron. PPT-SM-FS 2017. To put out a fire we need to: Smother itSmother it (stops it breathing) Remove the fuelRemove the fuel (stops it from eating, starves it) Reduce the heatReduce the heat (cools the fire) 7. Air/OxygenAir/Oxygen – which it breaths FuelFuel – which it eats HeatHeat – well it’s a fire after all! The fire tetrahedron (Figure 5) is the fire triangle with the added element of a chemical chain reaction. The fire tetrahedron includes the three components covered in the fire triangle, with the addition of a chemical chain reaction. • For a fire to occur, four components must be present: fuel, oxidizing agent, heat, and an uninhibited chemical chain reaction. Typical fires pass through four distinct phases. The fire tetrahedron includes the three components covered in the fire triangle, with the addition of a chemical chain reaction. This model is simply adding another dimension onto the traditional fire triangle model by treating the chemical reaction as its own separate component. Put it simply, a Tetrahedron is a solid pyramid with four plane faces (from the Greek words ''tesseris edres''), each one representative of the four necessary elements. •Symbol is a green or metallic triangle •Flammable liquids •Symbol is a red or metallic square •Live electrical current is present •Symbol is a blue or metallic circle •Certain combustible metals (aluminium, magnesium, sodium, etc.) By: Audrey Priddy 2. Take away one side and the fire will go out. Back To Basic Special Edition Fire Behavior Fire Triangle & Tetrahedron The four basic methods of extinguishing fires require the understanding of how they effect the fire triangle and tetrahe-dron. Keep fire lanes open and unobstructed.
Since then it hasbeen used for light,heat, cooking,destroying, and somuch more. Tetrahedron Create a Simple 3D Pyramid in PowerPoint 2010. When these components are brought together in the proper conditions and preparations, fire will develop. Figure 7: The fire tetrahedron. The Fire Tetrahedron introduces a fourth component – the uninhibited chain reaction – to the fire triangle. Fire extinguishers work by either cooling down heat, taking O2 level below that necessary to support combustion, or interrupting chemical reaction. Fire Behavior/Control/Streams - Engine Manual/Powerpoint study guide by redcoffeecup includes 116 questions covering vocabulary, terms and more. chemistry of fire fire Definition It is a chemical chain reaction which takes place with the evolution of heat and light. It is these vapors which actually burn. Oxygen = most basic 53. This model is simply adding another dimension onto the traditional fire triangle model by treating the chemical reaction as its own separate component.
Chemistary of Fire and Fire Triangle 05-07-2013.ppt - Free download as Powerpoint Presentation (.ppt), PDF File (.pdf), Text File (.txt) or view presentation slides online. This is referred to as the fire tetrahedron. Fire extinguishers put out fires by taking away one or more elements, such as oxygen, from the fire tetrahedron. Fire prevention stops a fire before it starts.
Fire is not, in fact, a substance.
Fire triangle Essentials of Fire Principles ... – A free PowerPoint PPT presentation (displayed as a Flash slide show) on PowerShow.com - id: 3ecb38-Y2E5M Cool the burning material (reduce temperature) 2. 3 Summary(2 of 8) • During a fire, materials may change their physical state as a result of being heated.
Fire triangle and fire tetrahedron represent conditions necessary for combustion. The theory of fire extinguishment is based on removing any one or more
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