When does the fire get smaller and smaller? When does it blow bigger and bigger?

If you blow it with a gas that cannot be burned or does not support combustion, such as CO2 (carbon dioxide), and isolate it from the air, it will become smaller and smaller.

If you use combustible gas such as oxygen, it will blow louder and louder.

If a large amount of hydrogen is blown in a short period of time to isolate it from air (or oxygen), it should also be extinguished.

Also, it may be related to the speed of the air flow.

This is a complex issue.

This is inferred from the conditions of combustion and the knowledge of chemistry, which of course has to be tested in practice.

Fires are easier to blow out than small, such as matches. A blow lowers its temperature below the flammable point, so it goes out.

It doesn't work when the fire is relatively large and the temperature is high. For example, when the charcoal is burned at the height of the barbecue. Blowing air on it will not only not lower its temperature below the flammable point. Bring more oxygen to it anyway, so blowing on it at that time will only make it burn more violently.

The combustion of a substance must meet three elements:

1 Have combustibles.

2 There should be combustibles, usually oxygen.

3. The temperature should reach the ignition point of combustibles.

When the fire is small, the wind takes away the heat around the flame, so that the temperature cannot reach the ignition point of the combustible, and the fire is extinguished.

When the fire is large, the heat carried away by the wind is not enough to reduce the temperature below the ignition point, on the contrary, the wind also brings combustibles --- oxygen, so the fire is hot.

The flame is stable, and the air is not sufficient, and if the air is too big, it blows back.

I think it should be that the fire can spread under the condition of a small wind and a big fire! If the wind is strong and the fire is small, it should be extinguished!

**There are three conditions: fuel, oxygen, temperature.

It blows out because the air movement keeps the temperature of the fuel below the ignition point.

The blowing gets louder because the air flow makes the fuel fully oxygen-friendly and the temperature is greater than the ignition point.

From a chemical point of view, because it increases its contact area, so that there is enough oxygen, it blows bigger and bigger.

This is a chemical problem, because there are three combustion conditions, namely: combustibles, oxygen, ignition point (the minimum temperature required for combustible combustion), for large fires, the reason why it blows more and more vigorously is because a large amount of oxygen is added, and the reason why small fires or objects can blow out is because in the process of blowing, the flow of air causes the heat required for combustion to be lost, so that the temperature drops below the ignition point of combustibles, so small fires can be blown out.

This phenomenon is related to the size of the ignition source.

If the fire source is relatively large, you can only blow the fire bigger and bigger.

We all know that wind power fuels fire, because the combustion of substances requires sufficient oxygen, and when the wind blows, the oxygen flow increases, so that the combustion is more sufficient, and the fire burns more and more. But candle flames are small fires that do not lack oxygen when burning. When the wind blows, the moving air can quickly take away some of the heat, which in turn lowers the temperature of the flame below the ignition point, and the candle is easy to extinguish.

The so-called candle flame goes out as soon as it blows, but the fire blows more and more vigorously.

Nameless fire, ghost fire, anger, are all angry and blowing bigger and bigger!!

Flaming Mountain with a fake banana fan Oh hehe.

Don't forget that firefighters also use strong fans.

Because, the size of the fire is different! ~

for example: The small flame on the candle, of course, goes out as soon as it is blown; And the fire is "the fire is extinguished and the wind does not stop"!!

Samadhi true fire and mortal mortal fire.

The fire is blowing bigger and bigger because a large amount of air, that is, oxygen, is added during the blowing process, and oxygen has a combustion effect. Some fires are small in themselves, or they are in full contact with oxygen itself, and they will be extinguished as soon as they are blown.

If you blow a fire, the air is just right to burn, the key is that the fire is big, and the wind you blow is not strong enough.

The candle burns and releases less heat, and when it blows, the heat is lowered to the ignition point, so it is extinguished.

The heat in the stove is more, and the oxygen concentration increases after blowing, which promotes combustion.

There are more combustibles for stove fires, while candles have less combustibles.

This one is a bit similar to chopsticks that break as soon as they are broken, and if you break a bundle, you can keep breaking them, but it's not the same.

The candle flame is small, and you can take the heat away in one breath, causing the temperature to drop to the point where the remaining candle cannot continue to burn.

For the fire, the wind you blow is not enough to reduce the temperature to the point of extinguishing, and the fire will not go out, but will blow louder because the more oxygen you bring in the wind reacts more strongly with the combustible substances in the fire.