Anisur Rahman Zuall

  Carbon Dioxide Agent: Carbon dioxide is a compressed gas agent and is commonly referred to as CO2, the agent is retained as a liquid at 800 to 900 psi at temperatures below 31°C, and is self-expelling. Matching Hazard to carbon dioxide extinguishers: Although rated for use on Class B and C fires, it is often effectively used on small Class A fires. How Carbon Dioxide Extinguishes Fire? Carbon dioxide prevents combustion by displacing the oxygen in the air surrounding a fire. Cooling the fuel, The rapid expansion and pressure reduction of the pressurized liquid carbon dioxide in the cylinder results in the cooling and refrigeration effect. Advantages: CO2 extinguishers don't leave a residue, a consideration that may be important in laboratories and in areas in which food is prepared or electronic equipment is present. Disadvantages CO2 extinguishers have a relatively short range because the agent is expelled in the form of a gas/snow cloud. CO2 extinguishers are affected by wind o...