Module 9_DRRR The elements of fire triangle.ppt
- 2. FIRE is considerably a friend but once fire is not controlled it could be one of our greatest enemies. Irresponsibility may lead to disaster and everything may change as fast as a split of a second.
- 3. In all fire cases, loss of lives, jobs,investment, and properties can literally go up in smoke just in a matter of hours. Knowledge on the behavior,cause, effects and safety tips can help save lives and properties.
- 6. Fuel- is any material that can be burned such as solid,liquid,gas.Combustion takesplace when fuel is converted into gaseous state as moisture is removed. This happens when vapor is escaping from any combustible material.
- 7. Heat-is an energy that flows through object.Enough amount of heat would free the vapor from solid and liquid forms of fuel.The lowest temperaturer needed to form ani gnitable mixture in air near the surface of the liquid is called flash point.
- 8. The higher the flash point,the more difficult it is to ignite the material.the ignition of fire to solid and liquid fuels varies.most solid combustible materials ignate immediatly.
- 9. Oxygen -is an element,estemated 21% of it can be found in the air.During combustion process chemical reaction takes place.oxygen is released and serves as an oxidizing agent for combustable material.without an oxidizing agent like oxygen there will be no fire even if heat and fuel are present.
- 10. The theory of fire extinguishment is based on removing any of the elements in the fire Triangle to suppress the fire.
- 11. 1.Removing the heat -the goal here is to lower the temperature which is usually accomplished by adding water as an extinguishing agent.other extinguishing agents include chemical and mechanical foams.
- 12. 2. Removing the fuel- In most cases, removing the fuel from the fire is not a practical way of extinguishing fire except when dialing with flamable liquid fires,valves can be shut off and storage vessels pumped to safe areas to help eleminate the supply of fuel to the fire.
- 13. 3. Removing the oxygen - Air is mainly 21% oxygen and this is sufficient to support combustion in most fires situation.Removal of the air or oxygen can be accomplished by separating it from the feul source or by displacing it with other gases like carbon dioxide, nitrogen and steam.Examples of separation would be foam on a flamable liquid fire,or a tight fitting lid on a skillet fire. Foam does not only lowerteamperature but also remove oxygen.
- 14. Presented by: Jed C.Donaire : Morales Thank you for listening