fire tetrahedron ppt

fire tetrahedron ppt

The Fire Tetrahedron. Fire triangle and fire tetrahedron represent conditions necessary for combustion.

•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.) Cool the burning material (reduce temperature) 2. Fire Tetrahedron: all parts needed for fire. Quizlet flashcards, activities and games help you improve your grades. – Fire Safety slide #5 Fire Classifications •Ordinary combustibles (wood, paper, cloth, rubber, plastics, etc.) In short, a fire begins by an external ignition source which is usually in the form of a flame or spark. This representation more accurately describes the fire as a chain reaction process. Fire Tetrahedron Explained. The fire triangle was changed to a fire tetrahedron to reflect this fourth element. Fire Safety Fire Tetrahedron Consists of 4 sides Oxygen Fuel Heat Chain of Reaction Classes of Fire Class A wood, cloth, paper, cardboard Class B flammable or ... – A free PowerPoint PPT presentation (displayed as a Flash slide show) on PowerShow.com - id: 3afcf0-YThkZ The four components required for a fire are: Fuel; Oxidizing Agent; Heat; and; Uninhibited Chemical Chain Reaction. 5 * Summary (2 of 3) Five classes of fire require specific extinguishing methods. The Fire Triangle. The basic fire theory says that a fire needs four main elements in order to start: heat, fuel, oxygen, and a chain reaction. Seven out of ten fire -related deaths occur from breathing poisonous gases produced by the fire. The Fire Triangle was consequently transformed to the Fire Tetrahedron. Typical fires pass through four distinct phases. Remove any of these items = No fire (fire goes out) Basic fire prevention = Separate fuel & ignition sources . Take away any one of these elements, and the fire cannot exist or will be extinguished if it was already burning.

The theory of fire extinguishment is based on removing any one or more A tetrahedron can be described as a pyramid which is a solid having four plane faces.

wildland fuels. Fire Extinguisher Locations Fire extinguishers are located throughout the workplace and readily accessible in the event of a fire. The four basic methods of extinguishing fires are: 1. When you gaze at the leaping flames of a campfire, you’re observing not an object, but a process – a chemical reaction. Fire Safety Fire Tetrahedron Consists of 4 sides Oxygen Fuel Heat Chain of Reaction Classes of Fire Class A wood, cloth, paper, cardboard Class B flammable or ... – A free PowerPoint PPT presentation (displayed as a Flash slide show) on PowerShow.com - id: 3afcf0-YThkZ Fire Tetrahedron = Add chemical reaction. 53. 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. As a result, the basic elements of fire are represented by the fire tetrahedron - HEAT, FUEL, OXYGEN and CHAIN REACTION.

It’s used in schools to teach children about fire safety and it also is a useful tool for teaching employees about basic fire prevention. Here ... Fire Safety Sign an ate tis uiz seet Cire te etter reresenting te rret Fire is not, in fact, a substance. It is these vapors which actually burn.

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.

• The fire tetrahedron is a graphical representation of fire in the flaming mode. Figure 7: The fire tetrahedron. Exclude oxygen 3. In the mythology of virtually every culture, fire is a sacred substance that gives life or power. PPT-013-01. FIRE SAFETY. The class, quantity, and placement of fire … If using a flammable solvent: Search for and remove sources of ignition. The fire tetrahedron includes the three components covered in the fire triangle, with the addition of a chemical chain reaction. Essentially all four elements must be present for fire to occur, fuel, heat, oxygen, and a chemical chain reaction. This theory is known as the fire tetrahedron. The ancient Greeks believed that fire was one the four basic elements that composed all things in the universe. The fire extinguishes by removing any one of the elements. Fire ppt 1. PPT-SM-FS 2017. This model is simply adding another dimension onto the traditional fire triangle model by treating the chemical reaction as its own separate component. It's not a theory, it's more of a model to explain what is needed for fire to occur. Presentation Summary : Fire Tetrahedron: all parts needed for fire. burning, you won't know what type of fire extinguisher to use. Air/OxygenAir/Oxygen – which it breaths FuelFuel – which it eats HeatHeat – well it’s a fire after all!

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