For a fire to start, survive, and spread heat, fuel and oxygen is required along with chemical chain reaction—the typical fire triangle or Tetrahedron (Fig. 8.28). Fire may be controlled or is extinguished by influencing at least one or a combination from the four elements (Fig. 8.29). ...
EXPLAIN HOW IT SHOWS “FIRE TETRAHEDRON”--FOUR-SIDED FIGURE SHOWING RELATIONSHIP BETWEEN COMPONENTS OF COMBUSTION PROCESS (UPDATE FROM OLD “FIRE TRIANGLE”--ADDS CHEMICAL CHAIN REACTION AS FOURTH ELEMENT). EXPLAIN THAT EACH COMPONENT IS EQUALLY IMPORTANT. ASK “HOW DO YOU PUT OUT A FIRE?” (...
We were taught the three sides of the fire triangle (soon to become a tetrahedron and gain a fourth dimension, the mysterious uninhibited chain reaction) and the three methods of heat transfer. We were shocked about the emerging understanding about the dangers of smoke, particularly from plastics...
The fire triangle (see Figure 13-1) symbolizes the elements necessary for a fire. Fire requires heat, fuel, oxygen, and then a chemical chain reaction. When all three characteristics, plus a chemical chain reaction, are present, there will be fire. If any one is missing, either through pr...
Fire is a chemical reaction between oxygen (from the air) and fuel (something that will burn to release energy), but it doesn't happen all by itself: you need to add some energy (in the form of heat) to kick it off. Break the fire triangle! Artwork: Breaking the fire triangle: ...
A triangle is the symbol for Class ‘A’ fuels. A square is the symbol for Class ‘B’ fuels. A circle is the symbol for fuels energized with electricity. A star shape is the symbol for Class ‘D’ fuels. Colours are also used on some labels as illustrated above. In addition ...
If this case goes ahead, that is why there’s the saying “bigger than Ben-Hur”. And “Judgement Day” is the day the judge makes a judgement. It could set off a chain reaction of events, with the help of the teleporter. The manager at the meatworks saw I was a genius instantly...
So why were Chang Cheh, David Chiang and Ti Lung given the pseudonym “The Iron Triangle”? Was it because of their long list of badass films that dominated the early 70’s, despite heavy competition with some dude named Bruce?; Was it because they were like an unbreakable bond of bloo...
In addition, C6F12O expands to cover the entire protected area after evaporation, which plays a role in isolating the role of oxygen and destroys the fire triangle [28]. Among fluorinated derivatives, 1,1,1,2,2,3,3,4,4-nonafluoro-4-methoxybutane (C5H3F9O) is commonly used as ...
A triangle cross section is its typical structure, which results in the luster of silkworm silk (Fig. 2.10). Its biocompatibility and gradual disintegration support it to be a good raw material for medical textiles. Like wool, the special luster and triangle cross section has also been an ...