The Impossible Fire pit Tornado
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- Опубликовано: 26 окт 2020
- Join the science discord! / discord Is it possible to make a fire pit that always makes a fire tornado? I put some ideas to the test in this video to see if its possible!
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Backyard scientist: I'm scared of commitment.
Inner voice: oh wait, I'm married
ruclips.net/video/GjPrpYqoR9g/видео.html
Wait he is?
Commitment?
Marriage?
I don't see the connection...
@@noble2046 Exactly what I was thinking! Never seen any ring.
Yeah, I’ve been working on a Cold Frame for my garden, and my brain won’t commit to a cut list.
I told my brain “no, I won’t make the block wall higher”.
I think it’s sulking.
I've thought about this project a lot also. It's a tough one to figure out. I've also played with making a desktop fire tornado that uses a candle. Tougher than it sounds.
It really is tough! To be honest I wasn't even completely sure any of these ideas would work but I had to try them for myself 😅 I just saw this video, and something like this might work too (~7:35) ruclips.net/video/i-WBTugxhHM/видео.html
If I had those fins spiraling air up instead of into the fire it might work.
@@TheBackyardScientist That's pretty clever, but not real practical. I think your design is closer to the target of a fire pit that's worth using for more than the subject of a video. A leaf blower is no good to relax around. If it turns out that forced air is really needed to get the tornado going it might work to use peltier powered fans. I've got one that sits on top of my wood stove and runs passively whenever it gets hot. I think your design might work if you could figure out how to get more directed air into the fuel, or maybe just get faster burning wood like pine.
Gasifier fire tornado?
@@TheBackyardScientist Why not use tempered glass slats on your design instead of metal slats - this way you can see the fire tornado that is occurring inside the unite.
@@TheBackyardScientist Hey Backyard scientist!!!! I am a big fan of your videos. Thanks for checking out my video.
@NightHawkInLight
I have some ideas for how to make it quieter because I agree a leaf blower is not a relaxing ambiance
Would be super excited to collaborate
I've built loads of these over the years and you were really close a few times, but move on from one design to a different one far too quickly.
The slatted type will do it, but the gaps need to be tiny (2mm or less) if you're making it that high. The top ring also needs to have a smaller hole to concentrate the exhaust because all the versions you made had far too low backpressure to sustain a tornado effectively.
The simplest way to make one is to cut the drum into 4 parts and overlap them in a spiral, and then cap it with a piece that has a hole 1/2 the diameter.
If you go up to 8 pieces it can give a tighter tornado effect, but the tolerances are much tighter and the gaps need to be much smaller.
Nice
I'm amazed there isn't a response from The Backyard Scientist on this comment. Seems like the answer is right here.
His other major problem was no thermal insulation.
A firepit (or any hearth, really) NEEDS thermal insulation to contain the heat, and build it up enough to combust the smoke.
@@TheRojo387 Wow so true! The Backyard Scientist should totally try this
Post a video of your fire tornado, would love to see it
"I'm jealous of California because they're *lit*!"
"I'm scared of commitment."
"Epic welding montage!"
Dude you're a meme lord lmao
Nice
sus amogos
Years ago without that plasma cutter, that project would've taken forever. Great job!
Oh yeah
Wait, he has plasma cutter??
@@techsbyglebbagrov7470 a hand held one, he's using it a bunch
Hello
nobody knows what's that plasma your talking about
The coolest Florida man is back
Graystillplays is pretty cool as well
Lol
Finally he has posted another video
Yes siiir
Yea lol
“Number two, they’re 400 bucks for a fire pit. Four hundred dollars for a fire pit. that’s pretty ridiculous, which is why I decided to buy 400 dollars of steel to try to make my own.”
this is why I love his channel.
I had to double back cuz I thought I misunderstood him. Literally laughed out loud
Thumbnail: he's a Firebender 🔥
awesome florida man scientist back at it again
can This comment get any likes???
Congrats on funny comment
Wait how u comment 15 mins ago but its uploaded 1 min ago
@@proxy6815 it was unlisted, he put the link in his discord
YES
6:54
Backyard Scientist: challenges everybody to make their own fire tornadoes
California: no! God please NO!
Australia be like I’m good
ruclips.net/video/GjPrpYqoR9g/видео.html
Haha that made me 😂
😆
@@rufuslion5612 Tennessee be we got shields
Mark Rober and Science Bob used a ton of fans for making a really cool fire tornado.
"California is lit" hits hard for me. my house was burned down in the creek fire and we had to find another place to live. keep in mind that I'd been living in that house my entire life. #MountainStrong
Welp. This is comedy (sorry btw)
I thought of that and I’m so so sorry mate
That's sad
I’m so sorry to hear that
condolences
"California is lit"
Australia: I felt that
How could they feel it if they have 3rd degree burns and skin cancer?
GET THE FRICK OFF RUclips
How just how are you everywhere
ruclips.net/video/GjPrpYqoR9g/видео.html
@@PaperBees you know you can do that if you comment in every video in youtube
3020: DIY fire pit black hole!
He won’t be alive then
@@TheMisssarahrenee no sh sherlock
@@TheMisssarahrenee im sorry to say this but you belong in r/wooooosh
Sarah Wolfe r/wooosh
@@TheMisssarahrenee hmmmm megasus
“Everything changed when the fire nation attacked”
I personally hate you
Lol
If it's any consolation, fire whirls are incredibly rare and typically last only a few seconds. The fact that you were able to create one at all was impressive.
Alternate title: Florida man makes giant vortex of fire from scraps of metal
Alternate title: Florida man tries to make giant vortex of fire from scraps of metal
h
@@JohnADoe-pg1qk lol it took me a minute to see the “tries” part
@@moment3380 Same
Anytime an article starts with " Florida Man " you know its going to be good.
This man is the definition of chaotic neutral
Edit: Chaotic Good
You mean chaotic good
@@felixkalenskyy93 true, I amend my statement
Dnd reference
@@TurtleTrinity26 yes
@@djsalad5752 lol
Does anyone else get nervous when Kevin starts playing with fire? I keep thinking today's the day he catches himself on fire.
He did that when he set the pool on fire
i live in california and i physically recoiled when he lit the ground on fire.
With some adjustments, I think the third one you made could have worked. 1) The angle of the fins at the top weren't angled enough. If you compare the angle of those to the angle of the 2nd one you made, it was much less of an angle. 2) You should raise the floor inside it up a little bit so that it's not quite so deep and and put holes in the bottom to allow fresh oxygen in to feed the fire at the bottom. That will get it really hot. 3) put enough wood in and let it burn long enough to really heat up the walls of the stove so that the fresh oxygen coming in at the top fins will be super heated. I think that would do it. I'd like to see you attempt round 2 of this with some of these suggestions, or other suggestions that you have received.
Me: goes to park with blowtorch
Uk: nah everythings wet and is always wet
Canada: nah everything is covered in snow
Moon: nah no oxygen m8
Venus: Hmmmm... It's hot here but no fire.
Facts. All facts
The sun: pffff I can do better than that
How many times did he say "fire tornado"? Can someone count?
About 24 times
69 times
About 420 times
not nearly enough
A googolplex
I can think of one additional part to create natural tall ones kind of...
Ur right about the fan and how in nature it's usually as simple as a tornado meets a fire and what else would ya get.
I think u should combine all of your set ups. The basic outer shell being the omnidirectional slat rig... The inner shell being the basic half wall set up the ring slats to connect the two shells.
Then my additional part a tall propeller with a free axil facing up high above the fire.
The idea isn't to add any motors just fuel. Pack it round the stalk of the propeller and then ignite it. Once the inner shell heats up the cold air will come in raising the velocity of the propeller and it should make a firenado.
Cause the leaves were moving the right direction
"Eh, I didn't need that arm hair anyways"
Reminds me of "Am I missing an eyebrow?"
Mythbusters budget team: There goes the cheap insurance. Good quote for a shirt to offset the coverage cost.
Him says he has to put 64 pins on it
My brain: a stack of pins
mc player XD
Mc player def
I think that too 😭 someone said they had 64 paper to glue in and I said out loud ‘a stack of paper’
I built a 'Vortex Incinerator' several years ago. It was like a vertical jet engine with a chimney. The base was a 55 gallon drum burner with a shielded axle in the center, it had a grate in the bottom where fresh air entered. Under the grate was a many vaned fan attached to the axle to spin away the ash if it didn't blow up and out. Up above, the axle had large helix vanes inside a chimney to provide motive force. There was a space between the burner and the chimney to load wood and see fire and the lower part of the chimney had a funnel shroud to concentrate the fire up the chimney. It was all made of scrap metal. The bearings were pins in cup and a large tripod held up the top of the chimney. It worked spectacularly once, the burner drum got red hot and glowed in spiral waves and the axle spun nicely, then the axle got red hot at the top and bent. And that was that. Too many moving parts of junk to last. Then it was art.
Any chance you have any photo's of it? Or could sketch a diagram of how it worked? Sounds really interesting!
While I've wanted exactly one of these for years, I've only RUclips researched the topic if fire vortexes and burners. A strong updraft from intense heat is one of the prime forces between tornados. Simply rotating air may be insufficient.
After the hot air and fire raises, it can easily hit a ceiling of cold air and smother the lift and rotation needed.
If the air above the top of the fire chamber can be induced to turn, that could help, but having strong lift from intense heat is very important.
Maybe if a vacuum or fan could be mounted a few feet higher than the flame, that could help.
can we talk about the hard work he did?
thanks for the shoutout!
(im the person on discord)
3:31 drops blowtorch right next to a gallon of propane
This is the same guy who pours molten Aluminium in water like there's zero danger and wears shorts and a button down shirt blowing up fish tanks with molten salt.
Florida man.
Ah yes.. A wild Florida man at his best. Watch as this meticulous creature performs dangerous tasks one by one.
I love this channel! Im glad you guys are back!
Dude you are living out my fantasy!! I want to make a fire pit/tornado to maybe 1) have the tornado tend to direct the smoke straight up and away 2) be dope to look at 3) maybe achieve really good combustion.
Then, I am looking for a 'Tensile tarp structure' that I can A) raise, B) lower for when not in use, and C) close off more if its windy. Smoke would exit a hole in the center, which would also be the highest point.
Back to the hearth: what if you had a series of steel pipes in a spiral that would feed air into a large steel bowl that contains the burning wood. Cold air, which is heavier, begins orbiting the fire and gases, which stay in the center because they are lighter.... producing a swirl.
My summer project!!!
California is lit! Yea man we have the BEST gender reveal party’s! You should come and join us sometime.
I think you mean Antifa Arsonists
@@Mike-ky6jc ...no
@@NikkiDimesYT why you don't like and appreciate Equity for all?
Bruh
Im dead...
Gender reveal parties. Why would Californians have those? The parents are just gonna have the kid decide they're trans when they're the ripe old age of 3.
If he accidentally caught the ground on fire “Florida man sets fire to local neighborhood”
he got so many fire extinguisher at home he probably could extinguisher the fire
You are awesome. Keep doing what you are doing!
“I told you” - that sounded confident
What a pleasant surprise in my sub box mid day. That intro was great as always.
Makes my day whenever BackyardScientist uploads
Same here
i give you prop on the " just be a man, grab the hot metal and move it, WITH YOUR BARE HANDS!" 1:30
You are the nerdiest looking metal worker I've seen and that is awesome! When I contracted in Afghanistan and working out all the time I got pretty big and nobody believed that I was actually working on my aerospace engineering degree. Muscle heads can't be smart. lol I love people that shatter stereotypes. Great video!
You need a narrower body and a choked neck. It's about increasing ambient temp to drive of wood gas for a cleaner burn. The impeller neck was GREAT! I've actually made a fire tornado stove out of an old thermos. Lots of 3/8" air holes at the base. I drilled and bent few smaller 3/16" angled holes. They were in the old threaded neck. They created a great vortex and afterburner effect. I could heat my whole shop off of it and some large soup cans as a chimney and radiator. Surprisingly simple and effective. When I hooked up an old CPAP as forced air it was almost scary in my home shop!! With your shop you could knock that out of the park!
Is it just me that absolutely loves all his T-shirt in his videos
must help with heat
I really like the design and the fire tornado for the vented (2nd) pit. I’d like to have a fire pit like that one day but shorter and wider
1:52
I love the design of that shirt so much omg
Life before quarantine: Oh a backyard scientist video
Life in quarantine: BaCk YaRd scientists video👀
Kinda looked like you was building a turbine engine with all those fins! Another great video! Also, I want to thank you, I just finished building my own fire fountain! Absolutely awesome! It really surprises people that come by and see it.
fire tornado propelled plane coming up soon!
*WHEN I SAW THE THUMNAIL I THOUGHT HE WAS FIREBENDING*
4:49 "and then beat this thing into submission"🤣 lol
Backyard sciencetist: posts
Everyone: RUSHES TO COMMENTS
I make vidz
I live in Cali and everyday seems like “get lung caner in two days” simulator
Im not worried about lung caner. Ive got a caneropener.
heyyy i just started watching a few hours ago and i am already addicted!!!!
I'm a month late but I have a take on this. TLDR, make it hot and dry above your fire pit.
I am not an expert but an enthusiast, the following is a condensation of remembered scientific fact from a novice. It might help though.
The physics of fire tornadoes are not dissimilar from those of dust devils, and those are not too awfully dissimilar from tornadoes (though certainly not the same). The energy of all of these phenomenon are derived from temperature differences at different altitudes. For tornadoes, three masses of are involved. Cold moist air from the North Pacific colliding with warm moist air from the Gulf of Mexico. The third air mass, warm and dry from the Southwest deserts, acts as a lid on the warm moist air from the Gulf. When the energy from the sun begins to wane in the afternoon the lid breaks down without heat from the sun, allowing the warm moist air from the south to rise rapidly. As it rises the moisture in the air cools and condenses into water droplets forming clouds. Condensation creates a warming effect in the air around it (also using moisture from pacific maritime polar air) thus fueling the updraft and more cloud creation at higher altitudes. This situation will feed itself as long as moisture and heat in the lower air mass remain, and are not canceled out by up and down drafts colliding. This brings us to the last ingredient. Wind shear. A wind blowing across the updraft will allow the updraft to continue while the inevitable precipitation from the storm is allowed to fall in a different place. The other effect wind shear has is to induce rotation. This sheer has the effect of creating rotation and can move that rotation from a horizontal orientation to a vertical one. The energy in a tornado comes from the energy from the entire storm cell being reduced to a relatively small footprint. As the rotation contracts, conservation of angular momentum win intensify the effect of the energy, converting lower velocity winds at the outer bands of the cell to extremely high velocity winds towards the center of a tornado.
This is all to make the point that higher temperatures and lower humidity in the ambient air above which dust devils and fire tornadoes form may have a great effect on the overall size, strength and organization of these smaller phenomenon (think of the lid of warm dry air on the warm moist air that fuels a tornado). This was cited as one reason the fire whirl in Redding, California in the 2018 Carr fire was so big. The area was in the middle of a drought and had been experiencing triple digit temperatures. If you can figure out a way to create a very hot and dry column of air above the fire pit, you could conceivably create a taller and more organized fire tornado pit.
5:40 - then why don't you add a fresh-air intake at the bottom of the fire pit, to make sure a lot of oxygen gets in at the base of the flames?
And make a piece of metal that is riveted to a center pivot on the bottom with a small handle that sticks out the side. Drill equally distant spaced holes going through both the piece added to the bottom and the bottom. Then that way he'd have a blender door to control the amount of air going into it. That way it's not drawing so much air that it's unstable, but just enough to feed convection and get it going.
I think a few more modest things, and he'd have a design that would work. (Seems the one with the perimeter slats is thisclose.) But I guess there's other things going on that limit the amount of patience in working out a good solution.
Also, those fancy fire pits don't have the fuel at the bottom, there is usually a grate mud way it sits on
Add 3-6 pipes winding in the same coil direction like a curly horn curving and getting wider as it comes to a end like a funnel. Sorry horrible at explaining but if im correct the sheer momentum and buildup coming to a finer point will increase the force and oxygen intake... Im not this smart trust me
imagine birds eye view looking down the tube of the fire tornado, now imagine 3-6 preferably 4 every 45 degrees at the base spun around the outer rim of the drums slates so it levels out the oxygen and prevents gusts of wind to extinguish the flame... damn my sleepy thoughts are smart sounding in my head ugh
@@pauljs75 sus mongus
The backyard sure gets more scientific with a fire in tornado form, awesome stuff.
post more pleasee!
so funnnnn!!!
Backyard scientist: you can't make a constant fire tornado.
Mark Rober: hold my beer
Early mans where you at
lets go
Kaasblokjes
2:08 hope your girlfriend doesn't watch this video!
Lol
Alike to coiling copper tube around fire to make a water heater... perhaps multiple individual coils set to discharge the heated air at a high velocity three inches below the top flange of the fire pit would make the tornado. I'd also try dampeners. One for the bottom intake and one for the coils so you can manipulate the amount of unburnt fuel from the lower fire before it hits the second burn, and the dampened on the second burn air so you can get the pit very hot before opening meaning higher velocity.
It would have dampeners as moving parts, but this could also be a design test where you may make some observations to how much dampening is required when the fire is burning efficiently. This could then be used to build one without the dampeners based on the flow restrictions found when you had dampeners, if it works at all.
Hey backyard scientist do it with glass and while your cutting the glass it has to be wet so it dosent break instantly
"I still challenge anybody to try to make their own fire tornado..."
*no no no please no don't*
Maybe if the inflow was channeled in a few longish tubes to store up some directional momentum instead of swirling past a sharp orifice/slit into the chamber that could be creating unwanted eddy currents and drag losses. Also some more height proportional to width on the chamber might help to increase draw and feedback.
I think you were on to something with your revelation that you need jets of air around the top. It's definitely possible. You have all the heat energy you need to move air up and out at a high velocity. I think it's a question of optimizing the efficiency of the heat exchange and the aerodynamics of ducting for the air from the bottom, through the heat exchange section, and out through the jets.
From my experience with dust collection, air needs smooth curves to maintain pressure and velocity through ducting. Perhaps try round pipe with smooth bends. Arrange them vertically around the inside edge of the pit and bent gently towards almost horizontal at the top to create your vortex. The greater surface area of the pipe would exchange more heat and the smooth race track curves inside the pipe would help the air reach peak velocities.
Dude this is one of the most hilarious anybody could do that for cheaper ideas I have seen in a long time. I’m sure any extra metal will be used resourcefully
Seller: will you like to buy a fire pit for $400?
Backyard scientist: thats too expensive
Seller: will you like to buy steel for $400?
Backyard scientist: Take my money
Lol
The low production value makes this channel extremely watchable (I know that sounded sarcastic, it's not). Stuff like this is what makes me really like the internet. That and Bee Movie memes.
Love ur vids keep posting
Nice to know this principle of fire building!
"here in Florida, if I try to start a fire, I cant!" *starts fire*
Add 3' high temp glass offset half cylinders on top of the solo stove - will look amazing
I imagine anyone who successfully achieves a fire tornado in their backyard will probably need a new house!
You’re giving Colin Furze a run for his steel fabrication. Interesting video.
I've been watching since 2015 the fire sword. I love this channel❤
Very interesting - thinking about all of the work that you had to do for this very short 7 minute video. Yikes. Thanks for sharing.
Ohhh, you are going to have to re visit this one! I feel like you are on the verge of figuring it out. I believe in you man!
This video was really well edited in my opinion
In the powered tornados they tilt the blowers up a bit. Adding a vertical component may help yours remain stable as it grows taller.
I was craving a good dose of Backyard Scientist.
Outstanding random intro vid 👏👏👏 Subscribed 👍 This bro in the vid's a bona fide Dark Souls pyromancer! Forgotten sciences 🌞🌻🌀⚡🔥
Pal please dont stop what you are doing, dont delete the older videos and such! I want my future children to watch and learn from them:| Anyway I love your content, and your attitude so much. I hope you are fine and having a great day!:)
"Ok, I'm seeing some circular rotation".
Yes, I am a tautology pedant.
The name of the game is trial and error. I experience that a lot when working at the research lab. Great video!
Great video
Woah, I haven't watched this dude since I was like 10, glad to be back Florida man.
Backyard scientist- I'm scared of commitment
Girlfriend-looks at hand no sht
The Backyard Scientist today :- I didn't need those arm hairs anyway.
The Backyard Scientist next video :- I didn't need those arms anyway.
Dust devils are caused by unevenly heated air. @ 3:16 you can see the effect of the heated air column reaching about 20m with a simple set up. It should be possible to engineer dust devils and even wind given the right atmospheric conditions and enough heat in larger columns; so a couple more barrels and more gas.
I think you had the right idea at 3:19 (re: some good tornado action but the fuel source being too deep in the chamber so the propane burned off before it got high enough). Moving the flame source higher cuts down on the amount of air draw, however, so you lose rotation. Rather than moving the propane ring up, why not keep the one at the bottom to maintain the rotation, then just add a second (or third or fourth) ring higher in the chamber to "refuel" the flames on their way out?
There's a type of fire called a blue whirl. Apparently it's a top-like vortex of fire that burns perfectly clean. It looks amazing and is apparently really difficult to make, but it would be really cool to see you give it a try and maybe get some cool video of it!
I wonder if you can use convection of warm air to spin a hoop with some fins on it to get some air above to keep spiraling. You'll need to use ballbearings or something to eliminate as much friction as possible so the speed can build up....
We build huge smokestacks from stones in a quarry, they shot fire at least a meter with only sticks laying around. The stack was at least 1.5m high and firepit in the bottom. You can also get same effect with metal cones over fires.
You know what's cool fire tornadoes
-backyard scientists
Hey guys backyard scientists here! And today I will try to power my WiFi with a single lemon and we are going to see if we can upload this video with it.
this is actually a good idea
Yes this is exactly what we need right now in california
I didnt even know fire tornadoes existed until recently, they and other fire related events are my favorite natural occurrences.
I have seen some of the comments and reply’s and I would really like to see a backyard scientist community website or something as such it would spark some ideas or maybe help for peoples upcoming projects!
Fire is literally glowing smoke.
There is a way to make a giant fire tornado! You just need 10 giant fans and put them at an angle around the fire but make sure they don’t blow out the fire mark rober’s video on the devil’s toothpaste has a clip of a giant fire tornado
Sick man !
So I was wondering if you had given any idea to trying to make those directional airflow blades be able to spin powered by the upwards draft of the fire? This addition of essentially turning it into a mini turbine might have the desired effect you are looking for.