Search results
Results From The WOW.Com Content Network
The fire triangle or combustion triangle is a simple model for understanding the necessary ingredients for most fires. [1] The triangle illustrates the three elements a fire needs to ignite: heat, fuel, and an oxidizing agent (usually oxygen). [2] A fire naturally occurs when the elements are present and combined in the right mixture. [3]
Gaseous fire suppression, also called clean agent fire suppression, is the use of inert gases and chemical agents to extinguish a fire. These agents are governed by the National Fire Protection Association (NFPA) Standard for Clean Agent Fire Extinguishing Systems – NFPA 2001 in the US, with different standards and regulations elsewhere.
Fire is the rapid oxidation of a fuel in the exothermic chemical process of combustion, releasing heat, light, and various reaction products. [1] [a] Flames, the most visible portion of the fire, are produced in the combustion reaction when the fuel reaches its ignition point.
Dry chemical powder is used on all classes of fires. Dry chemical powder puts out the fire by coating the burning material with a thin layer of dust, thereby separating the fuel from the oxygen in the air. The powder also works to interrupt the chemical reaction of fire, so these extinguishers are extremely effective at putting out the fire.
Liquid nitrogen or water is then forced in at the bottom to reduce the oxygen supply and put out the fire. The "LeRoy Corporation, Houston Oil well Firefighters" constructed a machine with an arm that was positioned over an oil well pipe on fire. The machine then lowers a cap over the pipe, extinguishing the flames.
Alabama is preparing to use a new method of execution: nitrogen gas. Kenneth Eugene Smith, who survived the state’s previous attempt to put him to death by lethal injection in 2022, is scheduled ...
Alabama inmate Kenneth Smith was put to death Thursday night, marking the nation’s first known execution using nitrogen gas. An Alabama inmate was executed with nitrogen gas. How does it work?
Hypoxic air technology for fire prevention, also known as oxygen reduction system (ORS), is an active fire protection technique based on a permanent reduction of the oxygen concentration in the protected rooms. Unlike traditional fire suppression systems that usually extinguish fire after it is detected, hypoxic air is able to prevent fire.