What are different types of flame?
Two primary flame types are a diffuse flame in which oxidation and fuel gradually disperse together and a ridiculous flame in which the oxidizer and fuel are mixed in advance and the flame is shorter and warmer. Diffuse flames, as well as those in candles and forest fires, are primarily red or red/orange reflecting the black body of the heated soot particles, while the pre -scented flames have a narrowly reflecting emission spectrum of burnt substances that move from yellow to green. Flames are the result of exothermic chemical reactions, ie reactions with pure thermal output. Chemical reactions that absorb heat are called endotermic.
The flame occurs when fuel and oxidative, usually air or oxygen, mix together in the presence of sufficient heat. Our ancestors use heat for heat and cooking from 1 to 1.8 million years. Significant transitions in history, such as the transition between the Stone Age and the Bronze Age, have been determinedthe chip of the temperature flame.
Copper, such as the primary bronze component, requires a flame of 1,984 ° F (1,084,62 ° C). For comparison, the candle temperature is 2,552 ° F (1,400 ° C) and a kerosene torch of about 2,372 ° F (1,300 ° C). Oxyacethylene torch burns at 5 432 ° F (3,000 ° C). The nuclear "flame" produced more from nuclear reactions than chemical reactions in the heart of the Sun is 24 500,000 ° F (13 611 093 ° C).
Common flammable materials include wood, wax, fat, plastics, propane and gasoline. Most of these substances are organic, filled with energy chemical ties formed in living organisms. Like a nuclear chain reaction, the heat released from the hot molecules is heated by the neighboring molecules enough to cause to disintegrate, which further releases heat. Cycle Continue until one of the key flame elements is removed - fuel, oxidative to or heat -
Although the flame is one of the most useful of the natural phenomena used by man, it is also one of the most dangerous. Fires outside control have claimed millions of lives and destroyed thousands of cities in history. Currently, humanitarian efforts to make cheap lighting LCD are underway to people in developing countries, thereby reducing the occurrence of injuries related to fire and monitor survey.