foam definitions

Heat tends to flow from a hot substance to a cold substance

Is the transfer of heat from one body to another by direct contact of the two bodies or by an intervening heat-conducting medium

Is the transfer of heat by the movement of heated air or liquid

Is the transmission of energy as an electromagnetic wave w/o an intervening medium

(Sometimes called infrared rays) are longer than light waves

Impingement other term

combination of convection and radiation at close range

Other word for sublimation

The chemical decomposition of a substance through the action of heat.

Minimum temp at which a liquid releases enough vapors to form an igniteable mixture

Ease with which a liquid releases vapors

A measure of the pressure that is exerted by the LIQUID on the atmosphere it is in contact with

70*F - 21*C

The temp at which a fuel produces sufficiant vapors to support combustion

Burning point AKA

Release enough vapors to support combustion at temp less than 100°

Liquids that must be at temp greater than 100° to release flamable liquids

Radiant heat providing energy for continued vapor production.

Other term for Incipient phase or ignition

Period when the four elements of the fire tetrahedron come together and flamming combustion begins.

The amount of heat energy released in a fire

Dissolve in water

Do not mix with water

The effect of a surfacant on the solution allows water to spread more rapidly over the surface of class A fuels and penatrate organic fuels

Aeration of the solution into a volume of bubbles that is greater than the volume of the solutionand is expressed in air/solution

AR-AFFF

• 1. Smart foams
• 2. Adjust there chemistry