V8 Header on a Turbo Burn Barrel
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- Опубликовано: 7 сен 2024
- Attempted to improve the fire in the chamber with more ports. Seems to work we gained run time.
Next issue is the backpressure from the drive turbo being installed. Obvious choice is larger exhaust housing and larger wastegates, but I have some tricks up my sleeve.
Stay tuned.
You always stage turbochargers smaller to larger when applying compound chargers.
I agree, the air distribution, along with the fire swirl is really going to improve your combustion.
I definitely 100% want my burn barrel engineers hands to look just like yours
Nice to see some creativity going on!
I'm surprised that the waste gate on the boost pipe didn't cut it out before it went fluttering.
Do you have a small A/R on the hot side on the first turbo?
A bigger hot side housing might be worth to consider.
In my questions on your earlier video, you have some suggestions imbedded as well.
That swirling V8 header action is a nice feature when it comes to a full combustion of the fuel.
I do think a standing barrel with a big rocket stove inspired combustion setup could take it even a step further in all kinds of little ways.
Nice temps. A thin layer of sheet metal can be used to shield the boost pipe or to keep more heat in the barrel saving energy, should the need for that arise.
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Side note: If your purpose is to use it for power generation other than heat, you'd probably be way better off building a gasifier for an engine to drive generators and stuff.
amazing work! its starting to look like a spaceship ^^ if you want to take power of it via another turbine it will have to be from the compressor side since the gasflow after the turbine has already done its work. just replace the compressor wastegate with the smaller turbo (that way no boost is wasted lol). block its exhaust to start it then slowly open it once the main turbo starts flying. this should also stop it from running away. oil cooler sounds easy enough, just wash one or more old radiators and run the oil return through them. a bigger door is gonna be a problem. they NEVER seal and the smallest hole is gonna blowtorch itself open.
All said, great work and I fully support you, this technology is long overdue.
Interesting. Subbed to see the development.
You need a large diameter, low pressure impeller to collect any useful power.
Also, a long enough 'ram' for the air to gain some velocity while spreading out [conically].
Two four inch ball valves on your wood inlet and you could feed the fire while it was running by opening the first one, wood in and closed and then open the second and drop the wood into the burning chamber 🤔
If you want this to run longer, you need to recuperate the heat energy from the exhaust, just like a jet engine. So from the turbo compressor side outlet, run it through a heat exchanger of some sort. That heat exchanger's other inlet can from from the turbine outlet or even the turbine inlet (if the temperature is normally too high)
Also, you can adjust the flow into the burn barrel. One flow aimed at the fuel. The other flow between the fuel and the turbine inlet. That second flow will improve efficiency by ensuring complete burning.
Higher A/R ratio turbine housing for the power turbine AND/OR a wastegate for the compressor side that opens at a higher pressure for more burn to sustain the flow load of the power turbine.
Maybe a oil cooler of some kind in the intake air stream ??
That thing looks amazing 🥲…
Secondary turbine may need to be a different type in order to function better as an expansion stage. I think some turboprop engines or how the turbines work on a helicopter may give an idea. Those will have separate shafts for the different turbine stages, even if the whole assembly is configured to use a common housing to make it compact. I'm not entirely sure of the terminology, but I guess one turbine set is the gas generator and the other one is the power turbine? Also may need more work on controlling the gates and figuring out pressure vs. flow. With no back pressure you'd have a run-away state, but with back pressure you need to head that direction to start making power. Might also consider some idea around water injection too. Steam expands a lot (I think it's around 700X the volume of water), but it will also slow the burn and carry away heat. Very little water from a misting nozzle may do the trick. Too much and it'll displace the air and kill off the burn cycle.
Also at some point these things are more like wood gasification than just typical wood burning. Basically the flame front will be coming from the air being injected into an enclosed atmosphere of flammable gas. So think of the air coming into the furnace chamber as functioning like the burner or nozzle on a blow-torch. Might even want to form an injector or diffuser screen of sorts instead of an wide open tube, so the gas burn will be in the furnace instead of working its way up the air input tube if the flow rate slows while pressurized.
Of course I'm just another random internet idiot, so take these comments with a grain of salt. I guess that's a reminder to do your own homework.
i wana watch the vids bro..
but that sniffing?!?!?! snorting??
driving me nuts lol
its a Supra barrel
Think of it like a governor on a lawnmower engine. When you try to send the exhaust through a second turbo to pull power out of it, you're going to have to "open the throttle" on the wastegate on the intake pipe (in this case, NOT open the wastegate, so it will try to spin faster and make more power). Then, it's a matter of tuning the thing to always keep itself at 3-5psi or whatever it is it runs best at without running away, but can still kick itself in the ass when it's put under load.
that would be the most complicated way of doing it. not to say it cant be done Camp Dogs straight up put an electronic wastegate on theirs
? What would happen if you put the drive on the in take not the exhaust ?
@@TheArrow1100 it does work better but restricts too much air to the fire.
You should add a 50/50 coolant mix (ethanol to water [literally just vodka]) to the intake to help cool the charge, aiding in compression, and also improve expansion by providing both fuel and additional mass
That header certainly does increase your combustion air distribution!
It wont spin that other turbo because that big ass pully u got on the compressor wheel. That thing spings like 30000 rpm so that pully u got on there is keeping it from spooling up. Spin it up with a blow gun to get it going
I have a fully perfected design I will be building, but mine will be built out of different materials and I am starting with a much larger compressor off of a B-27 and I will be building my own impeller.
You MIGHT need a heat shield around your tires there. ~( 'w')/
Have you tried spinning up the second turbo while installing it? so it's going the same speed already so shouldn't choke it down as much.
I think 🤔 the waste gates are on the wrong exhaust turbo, the should be mounted before the exhaust enters the turbo
@@nicmaz37 maybe on an engine but not for wood burning barrels. The 2 after primary turbo were only to see if bypassing enough air would sustain. Blocking the exhaust chokes the system of letting exhaust out. Wood fires need to move air out efficiently they dont have pop like gas or diesel fires.
I had a idea for you . Maybe you can start the machine with the second turbo plug on at the beginning
@@olgacoupal-bergeron7633 I threw this perticular barrel in the dumpster and am building a new one with a better integrated steam/pyrolosis tank.
For starting the machine Ive been toying with the idea of steam. Convert a turbo to operate off steam you could possibly spin it up enough to build boost and simply close the steam off when its operating. Obviously the steam needs a vent after so run it to a steam pump of sorts for the alternator.
think you could add a propane line to each of the header elbows? and a catalytic converter before the turbo? oil cooler in front of the turbo intake. big shop heater ++A
Love the power turbine. You want to run a alternator off of it?
This is probably a dumb question but what is the point of having a burn barrel? Don’t get me wrong I think it’s cool as hell but I need a way to convenience my wife that we can’t live without it! Could I heat the house with it?
@@danielm2246 My ultimate goal is to use it as a glorified battery charger and fuel refinery in one unit. You could technically heat a 4000 sq ft house to 300 degrees in 40 seconds but thats a bit hot if you ask me. If anything possible use in a giant steel build would be mint. Personally I wouldnt attempt to run it indoors at all its so loud. Stay safe!
Am intrigued and want you to realize new concepts, best found practices and expand your mental territories in your exploration. If it has one, what is the name given to such a system?
.... 7:24 - Is there a plausibility worth considering that it might not so much be the [back pressure] as your concern but, moreso, the *_rate of change_* bringing [that] into the air flow is too steep of a rate and that it needs time to spool up to match the flowrate of the system if [that] has the same/better ~volumetric efficiency as the system? If so, is a diverter/damper/[blow-off?] parallel apparatus ahead of [that] implied to retain full flow rate while bringing [that] up to speed and, eventually, closing off such a [by-pass] circuit? My mind then goes into the loading of [that] for power generation causing a [back-pressure] if [that] doesn't have *_(better?)_* volumetric efficiency than the system in order to maximize power generation while under the expected loads and not bog down/stop the [burn system]. A fine balancing act it seems for those metrics to reach your KPI(s). Like I said, intriguing.
Also, as mentioned elsewhere here, a wood gasifier powered generator is a great, low-branch entry as I'm sure you know to getting you an interim power/heating source while working on this exploration. 👍☕️👌
bro i had to read your comment a few times. the thing is called a "Turbo Furnace" but most people call it a Turbo burn barrel or boost barrel. there are only about 126 videos on yt. i am working on a playlist. no its not the rate of change, he tried to spool it up while it was mounted but the increased pressure opens the wastegate to early. the rest of your comment probably means the system should have the generator turbine and the barrel in parallel and a valve to divert some of the flow through it once it starts screaming which is the perfect setup but boy thats gonna be a lot of welding.
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