🔥 Does a candle burn without a wick 🪔 Experiment with a pipe 🕯 Physics 🔨 Burning paraffin
🔥►► Help the channel - donate: www.donationalerts.com/r/tati... ► BTC: 1MPHxbhGXaotXhkBU5rCRpfK9npMDoWVBg 🔥►► Experiment. We check whether the candle will burn without a wick. We use a regular paraffin candle. A visual experiment in physics with the combustion of paraffin vapor without a wick. A simplified analogue of Michael Faraday's experiment from the book "The History of a Candle". The physical properties shown are used, for example, in camp paraffin burners, called trench candles, dugout candles, where paraffin vapor burns not only near the wick, but also over the entire open surface of the fuel. The wick in this case is used primarily for the initial heating of the system and the transition of the fuel to the combustion mode over the entire burner area. 🔥► All films about our tube furnaces: • Печка-труба своими руками 🪓► All our joint travels: • Совместные путешествия...
📖 Video content:
00:00 Introduction.
00:07 Question for the audience.
00:13 Solid and liquid paraffin does not burn.
00:31 Will a candle with a non-flammable wick burn?
00:49 Non-flammable wick - does not burn.
00:56 What burns in a candle with non-flammable paraffin and wick?
01:10 Non-flammable wick rubbed with non-flammable paraffin - burns.
01:32 Let's add more paraffin fuel.
01:51 You can see a transparent layer between the fire and the wick.
02:14 Invisible cause of combustion.
02:20 Time-lapse video in the candle wick area.
02:29 A transparent layer of something between the wick and the fire.
03:03 This wick is made of flammable material.
03:23 The transparent flammable layer smoothly transforms into fire.
03:40 Once again we return to the main question of this video.
03:47 Let's try again to light the fuel without a wick.
03:59 Aluminum tube with thick walls.
04:05 Special bracket for inserting the tube into the fire.
04:52 We insert the lower end of the tube into the flame next to the wick.
05:23 Smoke or fog appeared from the upper end of the tube.
05:44 We set fire to the substance coming out of the tube.
05:57 It's burning!
06:17 A transparent layer is visible below the flame.
06:27 What is this video for?
07:02 Paraffin burner with combustion throughout the entire outlet section.
07:25 Subscription reminder.
07:42 Suggestion for sharing experience in the comments.
07:44 A prototype of a tube furnace of our design.
08:07 Replay of the scene of ignition of paraffin vapor without a wick.
08:31 End of the film.
Пікірлер: 9
Thanks, Interesting greetings from Ireland
@jekrecluse
6 ай бұрын
Greetings. Thanks for the kind words.
Если снизу трубки сделать воронку для забора воздуха то гореть наверху будет интенсивней
@jekrecluse
6 ай бұрын
Так и есть. Кстати, там сделана воронка, в виде фаски, аналогичной той, что на верхнем конце трубки, только внизу фаска внутренняя. Без воронки действительно горит чуть менее интенсивно.
Thanks for information, I want to understand if the paraffin does not burn, where does the black smoke come from?
@jekrecluse
6 ай бұрын
Thanks for the kind words. Paraffin is a mixture of various hydrocarbons. Soot gives smoke its black color. Soot is unburned carbon from hydrocarbons. Soot is formed during incomplete combustion or thermal decomposition of paraffin hydrocarbons. That is, soot is formed if there is strong heating of hydrocarbons, and if, for example, there is not enough oxygen for complete combustion of the released carbon. For example, in the video, starting at 5:08, you can see that the lower part of the aluminum tube is blackened with soot. Because when heated strongly, a lot of carbon was released. But the carbon near the tube did not burn. Since aluminum has good thermal conductivity, some of the heat was lost along the tube, and in the flame close to the tube the temperature was insufficient for the combustion of carbon. The tube also partially limited the flow of oxygen from the air into the flame zone, which also led to incomplete combustion of carbon. At the same time, some part of the carbon, in the form of soot, settled on the tube. And some of the carbon, in the form of soot, flew away in the form of smoke. If the tube is not in the flame, it is clear that soot is no longer released. Since all the released carbon burns, that is, it is oxidized by atmospheric oxygen to carbon dioxide. You can understand even better the processes that occur when paraffin is heated, for example, from the book by Michael Faraday - “The Chemical History of a Candle.”
@Canadian.Exper1ence
6 ай бұрын
Thanks
Горит испарения парафин , стеарин , воск . Это можно назвать -- пиролиз .
@jekrecluse
6 ай бұрын
Так и есть, Валерий.