Revision 3 of the burn barrel are done and we are pleased to say the least, this project has so much more potential we cant wait to see how far we can push it! Thankyou to everyone who has given us ideas!! @haltech
Alright episode 6 is now out, we put it on the roof of a car and drove around! Click the link here and check it out! ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-vC_aZTb70u0.html
this way you can have a high boost car with always ready boost pressure not depending on the engine speed, and even more crazy that it means a engine with no back pressure! go ahead and install it into a car, cant wait to see the crazy results
just dont have it knock up to much debris or the turbine wheel probably will get mangled, seen a few of these on youtube lately where air goes in the bottom and turbos getting chewed up
Route the intake air through a pipe or tubing internal to the burn barrel with holes facing towards the center. It acts as a diffuser as well as directing the flame front inwards. With the incoming air being routed near the walls of the burn barrel, it'll also act to keep the outer vessel cooled to some minor extent. If the fuel is semi-enclosed in a metal box within the burn chamber, less debris kicked up - the thing should be able to run on what amounts to wood gas.
Fuel injection will turn this thing to a jet engine, whole point is to use wood as fuel, if you start using liquid fuel, that is not as interesting as it is now.
Please use the dump air from the blue off valve to power a rotisserie to evenly cook a chicken with the exhaust heat. Extra points for adding spices, peppers and onions inside the barrel to inject them at high velocity. Also, I’ve never seen a water cooled work foot before, I’ll have to try that
@@TheAdatto yes it does. Most jet powered airplanes and helicopters use cold side compressed air to power other things. You can pipe it in locations that would be affected by heat, and less temperature change won’t stress parts as much. I figure in this case, it might spin slow enough to not become a chicken flinging turbine
From other boost barrels, it seems that hot wood chip ingestion is a major issue. So a filter of some sort on the hot end (a simple cycloidal, perhaps?) is probably a good idea. Other than that, I think just upping the limit on the waste gate and you're there. This may be the most reliable setup I've seen so far!
@@Jamxknife so they should get something that would immediately clog and fail, that isn't designed for this application at all, will cool down the air, which would make it lose power.
Put some fire bricks on the bottom so you dont burn out the drum at high temps. Maybe put the intake into the drum more to the side to cause a better vortex in the front part of the drum to distribute the heat in the drum more efficiently. And maybe try a copper gasket around the wood chamber opening since it seems to be leaking a lot of boost.
I love how most people who build these turbo barrels don't entirely realize they are making jet engines. If you turn the exhaust tube into a nozzle, it'll 100% make thrust. Throw it on a go-kart, and holy shit. However, just running the pipes a little different will turn this thing into a sorta hybrid rocket.
Hello, I am from Germany. 🇩🇪 I also built a turbo oven a year ago. Now I have uploaded a video. I'm currently in the process of building a vehicle with an afterburner, do you have any tips or suggestions? As soon as I have tested everything extensively I will upload videos, it will be wild! 🔥🇩🇪
@@TurboTonerl The most important thing is to add a nozzle to produce thrust. You need to take the high pressure, low velocity exhaust and turn it into low pressure, high velocity. That will generate more thrust. If you are wanting to add an afterburner, that can be tricky. Typically afterburners are located near the nozzle and use a liquid fuel. So that means you need to spray high-presure fuel into the exhaust, which also needs to be a flame to ignite the fuel. I saw your video and if that's what you are wanting to use, then I recommend making the exhaust tube much shorter, maybe only 30 centimeters. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-lA5h5BDL3VE.html That video is a good example of a nozzle, though they are using propane as a fuel.
Definitely much tamer this time. As a dumb idea, what if you added a 'reheat' feature? Pump a bit of fuel into the exhaust for an actual flamethrower. You *may* need a simple constriction to make that work, and a flame tube.
It may well be that there is unburned CO in the exhaust (similar to wood gas stoves), so even just piping the wastegate into the turbine intake or exhaust may get some additional power
Love the additions and using a haltech is just awsomly bonkers but I can't help but think once the burn barrel is perfected with ecu and potentially waste oil injection as fuel.... it could be the first step towards turbo steam power obviously that would jump the dangerous level up a bit but an interesting concept I think 🤔
So, I didn't mention this in my last comment, but for version 4 you should do an electronic throttle body controlled by a potentiometer. The stepper motor in those will allow you to open it consistently to precise amounts, this way you can have an idle, a low, a mid, or whatever you want and all you have to do is turn a clicky knob to the next position. Also a proper oil pump mechanism and an oil reservoir and cooler with a fan or two.
Love the overkill attitude of this. Id be curious how the wastgate would work on the hot side before the turbo like a typical turbo setup on an engine. Keep it up!!!
You people are our type of people. We love stupid ideas!!! Let’s get this thing ripping 40psi next video!!! If you missed the second episode click here ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-WTze6g9ZuF4.html Follow us on Instagram here instagram.com/eviltwinep91/
You can tell these guys thought every steps through. The part where they set the metal wrench on top of the hot burning metal thing. And the part where they connected the pressurized fire thing to their car were great. I was waiting for something to go wrong and they decide to try and back the car away from the fire. Either the fire will still be attached to the car and chasing them around, or they'll cut the oil lines and be squirting that oil into the fire. Its like watching a pack wile-e coyotes all teaming up to catch that road runner.
This would be counter productive if you do not install some kind of insulation on the inside, the purpose of the fuel is to get things hot, so don't smuther the flames.
Real nice adjustments made! One thing what did catch my eye. A wastegate is supposed to bypass exhaust smoke, not intake air. This way it can still overspeed
Couple of ideas. 1 - open the barrel and weld in some sort of mesh over the exhaust port of the barrel. Make it cover a large area so there's still loads of space for air to pass. Don't just put it in the pipe itself. The reason is because I could see in the video where chunks of fuel were running through the exhaust wheel and getting chewed up by the turbo. 2 - reposition the intake to barrel pipe to either the front and bottom of the tank facing the back OR in a position to encourage a vortex in the tank which will get oxygen to more places and encourage burn.
Read about Ericsson cycle, if you heat up compressed air with hot exhaust before injecting it to barrel, it should gain a lot of power and efficiency. Currently it works in Bryton cycle, which is best for multistage high pressure ratio systems - Ericsson is much better for low pressure ratio, like turbocharger gives. Also add some ceramic bricks inside as obstacle for direct path of hot gases to turbine side, should help decrease smoke production and prevent charcol chunks from hitting turbine.
Welcome to episode 23, here’s our fully forged block for the new compound turbo burn barrel. Our new anchor system is installed after the burn barrel pushed the shed from the back yard to the front last episode
Used oil injection for the fuel. If it's thick, preheat it using the exhaust. Great way to clear all the mozzie outta darwins rural area and get rid of old oil.
You should make a rocket engine next. Get 2 turbos and make a turbo pump, one for fuel on for air. Mix it in a nozzle and voila, home made rocket engine.
* If you want to do something similar to true rocket engines, you would have 2 barrels like these, but one is burning incredibly rich while the other is very lean, the exhaust for both of those would mix in the main combustion chamber -> rocket nozzle like you see in conventional rockets.
@@brycekovalik2381 would be interesting to balance the turbos for the mixture and egt. If one barrel was used to produce wood gas from another barrel of wood that would be very cool!
Awesome stuff boys I'm obsessed with these videos and wanna build one. I reckon add a hectic intercooler and a throttle body after it just like a car so you can build boost and shut it for some mad turbo dose/flutter with all that added volume of the intercooler
The wastegate is just acting as a second blow off Valve, it's on the cold side of the throttle blade, it should be on the other side so I can still vent pressure from the burn chamber when the throttle body is closed.
In addition to the changes you made, I'd suggest adding oil injection as fuel instead of wood, black diesel or used motor oil would be epic. That way you can adjust fuel ratios in addition to cleaning up the exhaust and making the turbo more reliable throughout the burn. Perhaps add some kind of cooling to the vessel to mitigate any thermal breakdown and melt-through. Of course I'm seeing this a year after you did it and you probably got all these suggestions in comments I've been too lazy to read before typing this out.
Now that you have the basics worked out.. find a way to power something?.. turbine driven alternator?... granted, it would take a Hella gear reduction to be at a useful speed.. but see if you can make off grid power via firewood?
Two fuel injectors, using diesel because it's a lil more stable at temperature. Put one where boost enters the tank and one on the turbo outlet. Run it with a micro squirt ecu. You could also pipe the boost further into the tank with some kind of diffuser tube to help prevent hot spots in the tank and a potential blow out.
My suggestions would be to line the lower third of the barrel where the fuel sits with fire brick and have water injection on the inlet of the exhaust turbo.
A jet engine(or the power unit of a turbofan) will often have ~80% bypass air, that is only 20% of the air sees combustion, and 80% cools that air to safe levels for the metal of the turbine and housing. As for the turbo barrel, adding a 1/2 or 3/4 pipe with a ball valve to dump air from the intake tube (before the nox), into the barrel to cool the exhaust heading into the turbo, could be used to prolong the turbo's life, unless it causes a secondary burn, in witch case its gonna shoot fire directly into the turbine. That said you should probably have a baffle or 2 before the barrel's exit to the turbo, to extend the minimal distance the air/flame will travel from the fuel to the turbine.
put it in a bathtub lid and turbo over the water line then pipe out rad then into the same car engine as the oil and use its water pump then back to the bathtub
@@thedude7726 Every other turbo burn barrel I've seen was not in any way starving for air - it looks like something was bleeding off boost way too early here and the nitrous was compensating for the flaw. In fact before all the changes they were hitting 30 PSI and getting a runaway system - This seemed to go a bit too far in the opposite direction and was having trouble hitting even 5 PSI.
@@thedude7726 Not with a gas turbine , just a waste , nitros makes oxygen , a gas turbine dumps 3/4 of the oxygen coming from the compressor, straight out the exhaust, nitros is OK on an IC piston engine where all the oxygen is burnt , but not on a GT .
The data logging is neat even if overkill. But now you have some stuff to go on if chasing an "ideal" design. The temp difference across the turbo shows how much work it's doing. The main things with this one is there's no run-away condition with steady RPM on the turbine and the oil situation was good. In that regard it's a success. The visible issue is the hot-spot on the burn barrel. Maybe try having the incoming air come in through a coil of high-temp tubing that spirals around just inside the burn barrel with air-holes facing inward? Although having the fuel fill panel on the side rather than as an end cap means you might have to do something besides having the incoming air tube spiral it around in that area.
The car being used as an oil pump like an old-timey blood transfusion got a good laugh out of me! My thoughts for further development would be a throttle-controlled bypass tube that lets some of the charge air past the barrel, that way boost pressure could be controlled by letting some of the air skip the combustion chamber plus the cold air mixing in could cool the exhaust and burn some of the smoke before it hits the turbine. Maybe something to distribute the air coming into the barrel too, looks like it's heating the hell out of the spot right below it. Also maybe a slight jet-like nozzle for the post-turbine exhaust to see if it can get some thrust going ;)
literally pissed my pants laughing when I saw the hose go on the foot. I'm thinking, fark you're game using power tools barefoot, then the hose came out = mission accomplished!!!
damn. i read online that jet engines(even wood burning ones) cant run nitrous properly. i was wrong. as soon as i saw that nitrous i was like what the hell? that actually works?
N2O doesn't burn alone, you have to add fuel. Open a bottle N2O a bit and hold a lighter at it. Doesn't burn. You should inject it in front of the turbo compressor inlet to cool down the intake air.
Most of the air in a turbine engine goes straight through and is not used in the combustion - so most of the nitrous will also be wasted. This is why the wideband sensor didn't show an AFR. In a piston engine, a lot of the combustion heat is lost during the expansion in the power stroke, but if you run the same air fuel ratio in a turbine, the temperature will be way too high. For the same power output, a turbo used as a turbine engine needs to be much larger than it would be when used on a piston engine.
I like the idea of using the intake flow to move air across an intercooler, but question whether it would have any effect on the intake temp. You’d be rejecting heat from the intake air into the intake air like a thermodynamic ouroboros.
Those weld’s are better than the weld’s on my turbo manifolds! Not even kidding! Btw It sounds lean af that’s why the nitrous didn’t go ballistic she needed a wet shot but leave out the fuel jet for max fuel or run kero
I think a bigger tank with a built internal setup to create swirl inside the barrel will produce higher boost pressures as well as reduce the spot thermal stresses that might prevent higher boost pressures. Maybe a cool RU-vid collab with Hunter Goodrich for this??? Earned my subscribe...cant wait to see where this goes!!
Look up wastegate crack pressure. A 1 bar spring is 100% open at 1 bar. It cracks opens significantly lower than that. Your sensors are correct. The reason it didn’t maintain boost is because the fire never got hot enough to maintain “turbine drive pressure”. Give it a bit more fuel and a bit stiffer wastegate spring. 1000-1300 egt is considered “safe”. steel starts to soften around 1300 degrees sustained.
The largest improvement would come from having a way to meter the fuel burn exposure the hotter and more evenly you heat the fuel charge the more stable the performance. I suggest a internal burn chamber that mixes the fuel in a quantitative manner. Maybe a barrel inside that you can slowly add into the outer barrel. That will reduce the turbo eating large chunks of fuel
My thought is bringing the air up through the fuel like a lot of forced air furnaces do. Could be as simple as turning the barrel up on its end. Then have some of the charge air bypass the fuel section to cool the exhaust and provide oxygen to burn the smoke/ash before it hits the turbine. They could put a throttle on the bypass pipe and use that for pressure regulation instead of the waste gate system.
My idea aims to have the fuel creat the heat and reach full combustion by the time it reaches the inlet of the turbine it may even make sense to feed stock in at the air inlet and direct the burn in only a spiral between the barrels. Also if you insulate the outside of your barrel you'll gain efficiency as well
Have a starter burn area open to the main burn chamber, and a larger metal box enclosure with holes or vents that the rest of the wood fuel goes into. The result is a solid fuel gas generator as long as it's kept hot enough (easy when internal to the burn chamber itself), it should run just fine as a wood gas setup and you can prevent debris from flying around if you're clever about it.
Make it like a feeder nuclear reactor. Have some chamber that can regulated the flow of wood into the main chamber. Could use piston like device that could drop down a perpendicular cylinder to the main chamber. This would collect more wood then bring it up to add more fuel to the main chamber. This would allow for modulation of fuel material while still keeping the main chamber pressurized. This would allow you to modulate the temperature. Also you could water cooling to the exterior and capture that thermal energy.
You could try do direct the fresh air from the blow off vent into the exaust pipe behind the turbo. Then ad some diesel and it should act as an afterburner.
Hey guys episode 5 is out now and is by far the best episode yet!! (Electronic wastegate and we build a flamethrower) click the link here and check it out ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-ujvFu_6DVG0.html&si=EnSIkaIECMiOmarE
Two things, Don’t run a wastegate, run a blow off from the cold pressure turbo out , to, hot exhaust into turbo. This will cool the exhaust and slow it but maintain full efficiency. 2, have you thought of running total loss oiling and feed the return into the turbo as fuel or even just as flame thrower? 3, catalytic converter as combustion chamber for diesel or oil feed.
Best setup I've seen, but few things I think you should/could try. You want to gasify the wood so don't use charcoal otherwise it's just running heat not gas. Wood/particulate going through the turbine looks to be a thing so I would say try go vertical barrel inlet around the bottom on a angle to swirl and outlet from the centre (not top) then you have basic centrifugal cleaning that might work. Small turbo/small pipework might actually be better as hot charge air should be better for burning the wood. Throttle body pre-turbo should be reliable guess it just looks less cool for the RU-vid's
Put an afterburner on it and use it to create thrust and power something. Could also have a multi fuel system, with oil and gas injection along with solid fuels so you can run it off literally anything. Definitely agree with changing the intake to create swirl in the chamber, and using fire bricks to protect the tank. For the oiling system, just have a stand alone pump with a large reservoir and an oil cooler, keep it super cool
This is literally how a turbojet engine works. Ooohhh, i see now, you misspelled “The most advanced/dangerous wood fired turbojet engine on the internet”. Sweet! This project is seriously awesome. How does this not have millions of views by now?
I'm getting ideas and have no way to fund that kind of thing. Things needed. Thermal generators around the barrel, a massive turbo for a ship engine, sensors to read air pressure and temperature, a intake valve to block the intake, 2 large radiators to cool the engine oil, a tub for 10 gallons of lube and an electric fan powered by the thermal generators to start adding boost.
- "I don't recon it'll read plywood." Perfect. Gonna go with, yeah it's not supposed to. Denso didn't really have that particular fuel in mind when they engineered it