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Why is vertical flame spread more rapid than horizontal flame spread?
The heat from a fire in the vertical spread is traveling upward and preheating the fuel about to be burned; whereas in horizontal spread, most of the convective heat is escaping into the atmosphere. Only the radiant heat is warming the material to the side.
How high can a forest fire get?
Depends upon what kind of fuel, how much fuel, how dry the fuel is, what the weather is, how steep is the terrain, among other things. Most fires are quite low and spread along the forest floor or in low brush. Where the lower fuels encounter a dead or down tree, the fire may "ladder" into the upper fuels (the canopy), possibly creating a much larger fire. Fireline handbooks for fire management include safety-zone tables for forest fires that have flames up to 300 feet high.
What Are the common denominators in most fires?
Weather, Topography and Fuel are the common denominators in wildland fire.
What are the constituents of fire?
The three contituents of fire include oxidizing agent, heat and fuel. The oxidizing agent is usually oxygen in most cases. A fire occurs when the three elements are present in the right proportion.
Can dry weather cause fires?
Dry weather doesnt cause a fire but it does contribute to the conditions that a fire needs. Lightning strikes cause most fires in dry weatrher. Carelessness of campfires and cigarette butts are other sources as well.
Where did the great fire of London spread to first?
It spread through most of London
Why is vertical flame spread more rapid than horizontal flame spread?
The heat from a fire in the vertical spread is traveling upward and preheating the fuel about to be burned; whereas in horizontal spread, most of the convective heat is escaping into the atmosphere. Only the radiant heat is warming the material to the side.
Which fossil fuel is responsible for most of the electricity generated in the US?
COAL
What was the most responsible for the spread of knowledge during the renaissance?
Broadended ideas of art and science.
What was most responsible for the spread of knowledge during the Renaissance?
Broadended ideas of art and science.
Which culture is most responsible for Christianity?
Many cultures are responsible for the spreading of Christianity. The main culture which spread it was certainly the Roman Empire.
What person was most responsible for spreading Christianity?
The apostle Paul spread Christianity throughout the Mediterranean regionSaint Patrick spread Christianity throughout Ireland!
How high can a forest fire get?
Depends upon what kind of fuel, how much fuel, how dry the fuel is, what the weather is, how steep is the terrain, among other things. Most fires are quite low and spread along the forest floor or in low brush. Where the lower fuels encounter a dead or down tree, the fire may "ladder" into the upper fuels (the canopy), possibly creating a much larger fire. Fireline handbooks for fire management include safety-zone tables for forest fires that have flames up to 300 feet high.
What are the three types of crown fires are?
Active Crown Fire is a crown fire in which the entire fuel complex – all fuel strata – become involved, but the crowning phase remains dependent on heat released from the surface fuel strata for continued spread (also, a running crown fire or continuous crown fire). Passive Crown Fire is a crown fire in which individual or small groups of trees torch out (candle), but solid flaming in the canopy fuels cannot be maintained except for short periods. Independent Crown Fire is a crown fire that spreads through the aerial fuel strata without the aid of a supporting surface fire. This crown fire type rarely occurs and is often mistaken for an active or passive crown fire with a surface fire component that is lagging behind the crown fire component. The most common occurrences of independent crown fire are early spring burns where active crowning occurs in dry aerial fuels over snow in the understory.
Where is the fuel pickup on a 2002 Chev van mine was sitting downhill for about three weeks and wont fire?
most likely in the fuel tank.
How does chopping down trees in a forest fire help?
The process of cutting down trees, or clearing brush during forest firefighting activities is referred to as "cutting a fireline". Once the direction and speed of the fire is determined, fire crews may choose to cut a fireline ahead of the fire, effectively removing the fuel(wood/brush), in an attempt to stop or slow the spread of fire. There are 3 main ways in which forest fires spread. The first is from burning material on the ground, where fire travels across small plants, dead leaves, brush, etc, along the ground, until it reaches the next tree, and so on. The second is by sparks and flaming material carried by the wind into adjacent trees. The third is called 'canopy spread', where fire spreads from the canopy of one tree to another. This is often the most fast-spreading method of fire spread, as winds have the most effect near the top of the fire. Cutting a fireline creates a bare space where there isn't really much to burn, and therefore, the fire stops spreading.
What Are the common denominators in most fires?
Weather, Topography and Fuel are the common denominators in wildland fire.
