Logic Egypt For Security And Surveillance Products :: لوجيك مصر للتقنية الأمنية و الرقابية

Fire and Science

Over the last 500 years, science has progressed at an accelerating pace from the beginnings of mathematical generality to a full set of conservation principles needed to address most problems. Yet fire, one of the earliest tools of mankind, needed the last 50 years to give it mathematical expression. Fire is indeed complex and that surely helped to retard its scientific development. But first, what is fire?

• How shall we define it ?

Fire is generally a turbulent ensemble of flames (or flame Jets). A flame let or laminar flame can have a thickness of the order of 10-3 cm and an exothermic production rate of energy per unit volume of about108W=cm3. However, at the onset of ignition, the reaction might only possess. Several factors need to be present before combustion can occur. The first requirements are fuel and oxygen. Fuel can range from a forest to home furniture or from crude oil to gasoline. A fuel can present itself in any physical form i.e. gases, liquids or solids can burn.

General chemical reaction for fire

OXYGEN + HEAT + FUEL = FIRE

To control fire we take 3 steps

1. Fire detection system
2. Evacuation system
3. Fire Fighting system