WHAT ELSE CAN A JET ENGINE AFTERBURNER DO?!
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- Опубліковано 27 чер 2022
- Today we show you our new jet engine design using a new afterburner setup. We start with how you can build it yourself and then run through some demos. We end with a fun show of fog juice (glycerin) running through the turbojet to create huge clouds of smoke.
Find us on Patreon and our website:
/ techingredients
www.techingredients.com/ - Наука та технологія
Exotic speakers, Fancy laser displays, now the mother of all fog machines... If they guy ever opens a night club it's going to be epic!
I suspect the DJ will be restricted to royalty-free classical music
Be great if it's hooked up to a getaway car being chased by a convoy of cops. Dense up the town for days. (Evil laugh😉)
For a minute, there, I thought that Snoop Dogg was in their garage!
Don't forget the fine distillates.
Sponsored by carlsberg
Years ago, one of the first projects I worked on as an aerospace engineer was "Alternative fuels". We took a stock jet engine (as would be found on a light commuter jet) and ran everything from peanut oil to vodka through it. Turns out, the peanut oil ran the engine just fine, but to get it to run on vodka, we had to make modifications to the engine's software. Turns out, peanut oil is more expensive than jet fuel, but it has the added benefit of making the entire test site smell like fried chicken right after start up and shutdown.
Do you got some videos of that would love to see it
@@thorer6778 Unfortunately, I don't have access to videos of it, and if I had video and posted it to youtube, they'd sue me to the point of homelessness.
You can remake it.
I was going through ideas for alternate diesel fuels for cars. Mostly, I was just exploring options. I have a diesel pusher RV, and wanted to know all my fueling options. Ya, peanut oil, or most any food oils you can buy in a grocery store, are more expensive than their road fuel counterparts. It's probably cheaper to get them in industrial quantities, but same can be said about road fuels.
The vodka may not have worked as desired because of the water content in it. The average is 80 proof, or 40% alcohol, 60% water. You can refine it to about 95% alcohol, 5% water, but after that, it starts absorbing it back in from the atmosphere. You may have been better off with strong methyl alcohol. Just don't drink the surplus methyl alcohol jet fuel after work, that stuff will kill you.
@@JWSmythe Something I've heard of people doing is getting _used_ cooking oil from restaurants for free (they'd normally have to pay to get rid of it) then re-refining it to take out anything you don't want going through an engine and using that. It apparently works pretty well, some people even claim to get better engine performance but I think they're probably imagining it.
You need a secondary ignition in Afterburner for a few reasons, Mixture Pressure, Temperature, time of atomization, and the cooling dynamics of the fluid as it makes it's way out of the nozzle. but when the burnfront is behind the ignitable gases moving at that speed with a soft even molecular cushion, you need a nice sharp spark to break that balloon. and that assuming you have some nice pockets at the injectors to stir things up, I find if you ramp up the fuel pressure nice and high with small nozzles it works well. the algorithm gods apparently know what I'm working on right now...whoa .. haha.
You're right about the nozzle size vs pressure to maximize atomization. Pump capability is really the only limitation here.
Like you, I enjoy pushing past the typical barriers. This is why it's important to study how those barriers were established and understanding how the "pros" do it. Then let it rip...😶
@@TechIngredients absolutely! I 100% agree, you have to have fun in life, life is so much fun when you know how to build things and make a lot of noise...lol!.
Also I wanted to mention with the turbo style exducer vs an axial turbine there's usually a spinning pressure zone coming out of that turbo against the walls of the afterburner creating a sorta lean/rich environment in the same space, but there's so many different variations of this I find that each setup requires individual analysis and treatment.
This may be a bit naïve, but would their be any benefit to introducing a stator to vector some of that exhaust gas into a slightly straighter path down your afterburner? I would imagine that the exhaust gasses experience a lot of angular momentum and want to wrap the wall of the pipe. I wonder if a straighter flow over your flame holders would better promote flame stability.
@@aaronschocke2147 I have the same question. As you mentioned, installing a stator should reduce the swirl. It should also reduce the exhaust gas velocity, which, if I understood @Tech Ingredients, is beneficial when igniting the atomized fuel.
Could you pre-heat the after burner fuel (engine cooling?) to ensure auto-ignition in the AB kinda like the regenerative cooling the shuttle uses in it's rocket engine?
Neighbors, seeing cloud of fog:
"He's at it again."
"What's he doing this time?"
"I think... I think he's building a thunderstorm."
"Martha, call the fire department! That youngin' across the road has set fire to his workshop again!"
" Yes, Henry," and doesn't bother to call.
Cloudbusting.
Better than the hydrogen explosion... The neighbors are still shaking from that one.
@@nameredacted1242 😂 Nobody in that neighborhood will forget that one.
Maybe, approve his request for reduction of property taxes ?
I've had a pretty awful day filled with 4 separate engineering job rejection emails, but this cheered me right the heck back up. You're the coolest internet uncle around lol
Thanks and good luck.
“I love my job” was so sincere. I am jealous of your amazing work and the fun you have, at least I can experience it vicariously by watching your videos. I hope you continue this for many years to come!
Other engineering videos: "Don't try this at home."
Tech Ingredients: "I'm gonna give you the plans, tell you where to get the parts, and give you some cool ideas. Have fun."❤
At 35:40 Vapers out there, rejoice!! We finally have a new jet powered, after-burning vape mod for your vaping pleasure! 😆 😂 🤣
@@BillAnt fuck yeah I'll make all town have 5 meters of vibisibility and reek heavily of strawberry!!!! :v
though i love that cloud oh my god
dont try this at home sounds like a politically correct way to pathologize uselessness and trust in corporate logos. but... i'm cynical so surely that's not the case. right?
Anyway yeah thank goodness.
@@nicewhenearnedrudemostlyel489 actually its to legally disclaim yourself from liability from that special and way too common class of idiots that are iliterate enough to do something dangerous with no prior knowledge or training in the subject (like the microwave transformer wood burner tutorial followers, do not look up the photos of the aftermath of that) but also literate enough to know that courts exist, that lawyers exist and that some lawyers will pursue any case, and that you can sue people for almost any kind of damage with even the vaguest of cause or liability.
@@nicewhenearnedrudemostlyel489 indeed
I love it. The genuine joy on your face when the fog burner was running is heartwarming. Great build. Love the whole thing
You are quite literally a cooler and more legal Mr. White. 10/10 quality videos
Was trying to form words but I can only salute you 😎
I'm still wondering how so many people are considering putting an afterburner on their jet engine. You really shouldn't hesitate.
I'm wondering how do people just casually have loose Jet engines out here.
@@Chris-rg6nm sounds like those "just casually having an electron microscope and Delorean in their garage"
Money problem lol my jet engine sunk me already and then I broke it. Id have to fix it and then build an afterburner
@@Chris-rg6nm Scrap yards are amazing!
@@Chris-rg6nm These are diesel truck and automotive turbochargers converted to jet engines. My first one was made from a "scrapyard" Subaru WRX turbo I got for the price of asking if I could have it. I purchased scrap stainless tubing at the metal scrapyard which included 1"-3" sizes with transition tapers and v bands (probably from a food processing plant) total cost was around $15 by weight. The ignition, oil and fuel pump were from junkyard cars and I got them for free. I started it using air compressor with a blow gun nozzle. I didn't have a TIG welder at the time so I MIG welded everything. It looked like crap but it functioned and made good power. I'm willing to guess I had maybe $100 into my test rig by the time I burnt up the center bearing section and moved on to a really nice gt4202 Diesel truck turbo I purchased on ebay for $250.
Back when I worked as ground-crew on the F-16 fighter-jet, we learned that the afterburner basically doubled the thrust at the cost of _quadrupling_ fuel-consumption.. So if the F-16 were to run on afterburner all the time, it would have enough fuel for ~15 minutes of flight... (That's probably with internal tanks only.)
Yea that's without bags.
The Viper is tiny and doesn't carry that much internally. Still sick AF tho. It amazes me how the F-35 can carry an entire F-16s mass in fuel alone internally. Whew. That a Lotta' gas in a stubby jet. The Panther is pretty cool too, though.
All I know is I'd be happy as a clam to have neighbors like these guys. I'd be over there all the time checking out what they're up to and offering help where I could.
He would have stopped that long ago.
24:18 Stage one exhaust gasses have plenty of CO2 and NOx which are really good at absorbing heat and not giving it to the cold fuel. The way to auto-ignite is to pre-heat the fuel.
Run it through a pipe wrapped around the exaust and pre-heat it(it doubles as protection for the pipe)
I think this is similar to what they do in commercial liquid fuel rocket engines right?
@@bruceschneier6283 It is. In rocket engines they even use the heat to drive the turbopumps and pressurize the fuel. It's really elegant and kinda nuts. These kinds of engines use a system called "expander cycle" and also feature probably the sharpest temperature gradient ever observed, going from being able to boil steel to liquid oxygen in less than an inch
Reminds me of how wide-eyed I was when I found out that huge spiral of tubing wrapped around a hot air balloon’s flame was propane being pre-heated. 😳
I wpuld also suggest a pilot burner inside the combustion chamber instead of the spark plug, a tiny tube with separate fuel and air mix delivered from the atmosphere via venturi intake. The pilot flame needs to be protected from the turbulent atmosphere of the engine with a perforated shield. We found (at our company making industrial burners) that the pilot is a well worth investment because it provides a constant ignition point regardless of the disturbances the main flaim would have due to changing (for example) combustion air temperature.
Remember, with CO2 in the combustion air, just a few Celsius up or down can shut off your flame.
Note: This will however produce NOx and CO so the environment will not like it, but for testing purposes and for proof of concept it will definitely have a huge boost in momentum/inertia performance.
Because a good pilot and a stable flame will allow you to increase the overall speed that you had to reduce initially....
@@ridermak4111 even a simple Coleman lantern or stove uses a preheater, though it's not for cooling, just proper performance.
It's great seeing something being constructed from theory and in the process, overcoming the constraints that a practical, working model presents. Very informative and cool!
My mother always told me growing up to be a physicist or something.
I just became a something.
You got to admire the intellect.....
@@mapo5976 A something is better than a nothing!
I'm despaired when I see all those tiktok and other "social networks" addicted people who can't even answer a simple math or physics question and who have absolutely no curiosity to understand the world around them. Narcissism and superficiality, the keys to this modern society...
i dont even know how can someone criticize you man, you're the best teacher ever!
Every time you release a video, I'm notified 7 to 10 hours later because of time difference zone, so it's in morning time at work, I impatiently look for a peace time to watch and got drown in extreme pleasure by your nice and easy to understand explanation of each and every science and engineering points.
You are a great teacher, best wishes for you and your family from Iran.
Your neighbors must have a great sense of humor.
I wish I was his neighbor!
I wish I was his neighbor
I wish, I was his neighbour.
Especially when the hydrogen/oxygen balloon was touched off. 💥
Lower oxygen content in the gases after the turbine seem to be a reasonable explaination for an increased temperature for self ignition. Additionally, evaporating the fuel in the afterburner requires energy, which is taken from the turbine exhaust gases. Hence the temperature of those exhaust gases might be decreased significantly, depending on the amount of fuel added. Both effects together might be enough to prevent autoignition...
I also think evaporative cooling of the kerosene might play a role.
That's what I was thinking , cat member the video but that asked a drag car driver why there car had no intercooler he sed the cooling of the air from the fuel evaporating was around 200 degrees .
That's what i thought. TechIngredients, try to measure the ex temp without spark plugs active?
I think I spotted the rocket scientist
I experienced this with an auto ignition coil and butane. Worked fine for slow butane gas, but as you try to increase the fuel delivery rate the expansion of the stored liquid into a gas cooled the fuel to the point the ignition coil couldn't maintain the temperature required for auto ignition.
A fatter element pulling enough power to offset the fuel cooling effect can work, but then it is likely to melt without the cooling from the fuel. This pushes you towards some kind of closed feedback loop maybe based on the resistance of the element in order to vary the voltage and maintain an electrode temperature within operating ranges.
The option I went for in the end was a ~100W ZVS flyback transformer and a spark gap strong enough to melt 2.5 mm steel electrodes. Tungsten electrodes helps with the melting. Then you have to worry about the wind speed "blowing the spark out".
I can't believe that I'm watching a video that opens with asking if you happen to have a turbo jet. I love this channel. Great vids. Keep them coming.
I wish I had you as a lecturer when I was studying engineering almost 20 years ago.
my first job in the Air Force after turbojet mechanic tech school was in the afterburner shop at Edwards AFB I worked on J85 and J79 afterburners. all this info good
I don’t always build turbo jets, but when I do, I always add an afterburner 😆
why dont you always build turbojets ? get a proper hobby then !
WHEW, you were way beyond my paygrade, but I sat glued to the computer watching this. Thank you, sir, for a MOST INTERESTING education!!!
Finally, a person that can explain this so even a dummy like me can understand ! Now I get it......and I'm loving every minute of it ! Thank you
Some of the coolest, well thought out projects on this channel instead of regurgitated content! Thanks guys!
The flames look so mesmerizing!
I have to say, you have a way to explain things in a very eloquent and simple manner. I look forward to your video's!
My favourite moment of this one was watching you walk back through the fog trailing your own wake!
Got to say ..... I Love watching you love your job!
Your commitment to creating this incredibly digestible content is amazing. Thank you for all the time and effort you put in to both the builds and the videos.
Thanks!
The father-son production is so cool, with great camera work, and amazing project ideas.. this channel deserves all of the interaction it receives.
Wow, even KISS would be jealous of that fog machine! Great video, as always.
Not only I again learned a bunch, but also wat a great fun to watch. My thanks for the work you and your sons put in it.
"I know a fair amount of engineering" the understatement of the century!
More fascinating explanations and data - as usual very well put together and really super demos. Much kudos and thank you. :)
That is literally a cloud generation machine. As in full size clouds up in the sky. Friggin' Amazing !! !
Yes, just like what we see when we look up and watch jets passing overhead on a clear blue day creating clouds that last all day, I think that some say it is just contrails, and others say it is chemtrails.
More Jet Engine Stuff Yessssssss! Have you considered making a DIY Turboshaft and/or Turbogenerator?
This guy's a genius, started watching every single one of his video's after I saw the world's best speaker series!
That was pretty awesome! 😎 The work and dedication that you have put in to what you do along with being an open source is very admirable! You along with others have been an inspiration to do better. 🤠
Thanks!
@@TechIngredients You are most welcome!
@@TechIngredients Give me my fucking refund
Auto-ignition: 02 is important, but also consider the temp drop as the fuel is vaporized/atomized
I also suspect the time it takes to get (back?) up to that temperature is too long before it's out of the engine.
My intuition is that air temperature is not distributed equally in the chamber, so may be lower around fuel inlets and it is not able to get auto-ignition one before leaving an afterburner.
But I'm not a rocket 🚀 scientist
also pressure would play a role.
- Really enjoyed it. I’m an aviation enthusiast, but I didn’t know much about afterburners. Thank you. It is such a variated channel. I love it. Your doing a great job.
Thank you so much Main Presenter and team. You have a great job and you bring us so much fun. Another interesting project!
The fog juice hit is the quickest set up for a Sisters of Mercy show I've ever seen!
We had a jet engine t clear ice and snow from the railroad tracks. It was very powerful!
Thank you for the lessons. The ease of consuming your information is inspiring.
Such a great teacher. The educational value is a terrific as the projects themselves! I love this channel!
Apparently it makes the ultimate fog /smoke machine
That is a beautiful jet engine.
With the afterburner, your engine appears to be losing a lot of stability. I think your exhaust/ afterburner section has too much restriction for the compressor you are using. You appear to be touching areas of compressor stall/surge. I think a design implementing less restriction (larger diameter) would work better ! But it sure is one of the nicer jet engines out there :)
I love how your assistants shirt is waving in the exhaust winds.
Your channel is so cool. Great job. You make hours of content feel like seconds because i enjoy it so much. Thanks a lot.
Dope, next time I'm building a jet engine I'll keep this in mind
Really interesting to see all the little solutions combined here. I built a mini-turboramjet engine for research in college that only worked (in its turbo bypass mode) inside of this hypersonic wind tunnel they had…but I still have dreams of putting a scaled up version on some crazy homemade jet project someday now that I have my private pilots license.
The "Fog juice" reminded me of those mosquito control fog vehicles from the 60s we used to see down in central Florida. I haven't seen one in years but I remember they used to come through the area twice a week. The fog had sort of a creosote-like odor. I think most people then misinterpreted their intended function at the time. I believe they dispersed a residual oil into the environment to starve the mosquito larvae of oxygen in the areas of standing water where they develop. Most people think it was supposed to work like an insecticide and kill them outright but I found that just wasn't the case. In any case very interesting material ... Thank you !
They still have those trucks in St. Louis. I never tried to find out exactly what they were spraying - just assumed it was worse for the mosquitoes than me!
DDT
@37:17, after watching the preceding 30 seconds of you smiling while walking through the fog made me say to myself, "i think this guy must really love his job. than you removed any and all doubt in my mind with this clip. I know nothing about jet engines, im a carpenter and wood is my thing, but your love of and manner in which you explain them makes me have a deeper appreciation of them. thxs for sharing.
Head in the clouds. No thermal camera required , bright orange is self explanatory. . Love the colours of the engine cold parts and the story the holes tell. Made a kiln gas burner with 1" pipe and cut a lip into the 2" exit nozel taper to hold the flame. Works very well. Nice work.
Love the video, the experiments, the shop, the location, the awesome knowledge.... but! how could you possibly post this without at least some simple thrust comparisons?!?! 😁 Keep them coming...
Yes, AIT varies with oxygen concentration and other gases at higher partial pressures can interfere. Thanks for being willing to admit it! The exception to this would be self-igniting substances like peroxides and azides. Quality work as usual.
Its amazing how much you have done (by your own experience, calculations and some guessing) to recreate an LM2500 GTE. I chuckled when you mentioned the sparks issue and adding in full on spark plugs as that was a major point in one of our training docs way back when. Very much enjoyed this episode 👍
Glad to see new videos on the Gas Turbine Engine series!
Really anticipating it going multi-stage like you mentioned in the very beginning!
Great video. I have to say the space you’re living / working looks incredible. As someone who lives in the UK, my little 1 car garage doesn’t quite measure up. Goals!
(Minor note: the pedant in me cannot help but say that that Thrust is not momentum, but is instead the rate of change of momentum since thrust is a force :).
Thanks!
I'll call your pedanticism and raise you.
Momentum relative to the air surrounding the engine assumes that any net velocity differential is the result of acceleration generated by the engine.
@@TechIngredients Ah ha! I suppose that’s technically correct. The best kind of correct.
The flame catchers in the afterburner look to be very close to inducing engine-rich combustion modes. You can see them a bright orange in the camera shot down the afterburner. Could you drill those screw flame catchers out and make them double as a fuel injection stage, which would cool them (and atomize the fuel rather well)?
For a second I wanted to recommend automotive nitrous plates as those sort of match your description, but I think those tend to be made of aluminium so probably aren’t a great idea unless you like your jet exhaust with added chunks 😁
@@ChrisDRimmer extra crunchy
Close to engine-rich isn't engine-rich. If needed, tungsten TIG welding electrodes could handle the heat, but if it's not a problem why overcomplicate it by looking for solutions you don't need? If/when it becomes a problem I'm sure he will solve it.
@@ParadigmUnkn0wn they are clearly much hotter than the surrounding parts, and the engine is likely temperature limited. So updating those parts would likely increase the operating window of the engine.
I am also not convinced that titanium would do any better in that specific use case. Titanium can take a large amount of heat in a oxygen free environment, in a hot oxygen environment like that however it’s heat tolerance is dramatically reduced, and particularly when it is then it can combust.
@@MatthewMenze he said tungsten not titanium.
Your presentations are more addictive than *** - (self-censored). Superlatives are insufficient to express my fascination. Thank you so much!
I think I enjoyed every moment of this, almost as much as you did.
Your neighbours must be very understanding folks, even those a mile away. 😬🙂
Constructive feedback for you:
1- I assume you purposely avoided dubbing in a voiceover narration during the loud runs, but I am certain it would've made the video more engaging.
2- I was anxiously waiting for you to explain the difference between optimizing for thrust versus power generation, e.g. in a turbine generator, but I don't think you did; or if you did, I had already zoned out by then.
3- I would've also been much more engaged if you were comparing measured thrusts in your different versions using force transducers.
Still a great show!
for power generation you are just utilizing the thrust differently. instead of a nozzle you would have your vanes that have a shaft that drives your generator rotor.
You do have a lot of fun... thanks for sharing - really interesting 🙂
I love the "long" 30+ minute format of these videos. You pack so much quality information into just a few minutes that I feel engaged throughout. I admit that I skipped to the end to see "cloud machine go brrrrrrr," but I intend on watching the entirety over my lunch break in 6 hrs. I run a hackspace and this could be a useful/fun project.
Ooof... I don't think we have the funding/knowledge/time to make this happen after all. It was really cool to watch. We have you playing on our shop TV a lot for inspiration.
This dude is an absolute genius. What did you do in your past life?
Oddly enough: olive farmer.
Worked at warehouse 13
seemingly everything technical.
Thanks for the vid!
I noticed you've been having audio issues the last few vids, I'd check all your wires before forking out for a new mic etc. Could easily be a defective wire/connection from how it sounds.
I've casually watched many DIY jet engine videos. But I was glued to this one, for all the 38 minutes.
Thanks!
Check out some of our earlier videos that dive deep into the jet engine builds.
I really like your engineering projects and the scientific explanations that you provide. I am a retired electrical engineer myself but I do occasionally dabble in the mechanical engineering side of things.
The auto-ignition issue with the afterburner might be due to a high velocity and low pressure flow of the exhaust gases that are entering into the chamber from the turbine.
here early to boost engagement cause I love the channel!! we all know premieres are perfectly balanced (?
tea
Pretty sure he’s not on the tea drinking side of the puddle….
@@Relkond oh we know what tea stands for, perfectly balanced with no exploits whatsoever (?
Very excited about the upcoming content expanding on this topic! Excellent work as always guys
you are one smart guy...interesting stuff thanks for the detailed workings of a turbo jet engine
I would like to see more videos on turbine technology. Maybe a video on different fuels like hydrogen, common pump gas, oxyacetylene, 50%< alcohol... Etc!
19:00 this was one of the difficulties in SCRAM jets, the geometry needed to have these low pressure slower area's when trying to achieve mach 5+ is obviously very hard.
It's a rain maker! California needs you!
A happy man enjoying his creation. Absolutely love this side of youtube
What kind of thrust did you get out of Version 2.0?
The fogger would be an excellent option for people that follow your car too closely!
This dude is in better shape than 90% of twentysomethings these days.
Stupid sexy Flanders!
MP should post his workout routine & diet :)
Your videos keep getting better with every one I watch thanks for all you do and keep up the good work 👍👍👍
Great vid, I'm amazed those little exhaust clamps held up to the task.
The fog juice could be a very good addition for the M1 Abrams. Since they use a jet engine too, the fog juice would add a tactical advantage in the battle field!
It already has a smoke generator
@@shawncooke7991 What i wanted to say is that the smoke generator wouldnt be necessary, since the engine itself could be the smoke generator
@@cdribeiro82 that’s how it works…injects fuel directly into the exhaust
Hey Howard, will this turbo finally make my air conditioner cool my entire house? Just kidding. Love the videos. Hate that video. On the other hand, you have enough fans to actually make that happen.
🤣🤣🤣🤣 I had to re-read this, that was epic.
@@MakeItWithCalvin ha thanks
I only did it because they are one of my favorite channels.
@@mannye Tech Grandpa is low key awesome. The dude knows his stuff but is very humble and down-to-earth on camera. I appreciate that!
@@MakeItWithCalvin Absolutely. I discovered his channel a couple/three years ago and it's just brilliant. This guy should have 100 million subs.
as always, very compressive explanations
I was looking up how an afterburner works because I was curious, and there was a three minute video and then I saw your video and I definitely have to click on your video knowing that I was going to get that much Francis thing and in-depth explanation
@Tech Ingredients: Really love your channel brother, another great video (series of videos I hope). When you brought up AgentJayZ I was way ahead of you X-) as any good dude who's geeked out on jet engines should. I have a litany of questions, but I'll just ask: Does not the forcing cone at the beginning of the reheater section negate most of the standard jet thrust achieved by the first stage in your turbo jet? IE if you were measuring the thrust would you not be getting 90% afterburner thrust and a minimal amount of standard jet thrust? Thanks again, I really HOPE you've got some cool sht planned for the 4th of July, and you're planning on filming it!!
Thanks.
Not at all. The cone is located in the duct where the inside diameter has increased so that the open cross sectional area changes little from the area of the exducer of the turbocharger.
My hunch for why the jet fuel doesn’t autoignite is heat loss through vaporisation. I’d imagine when you introduce liquid fuel into the exhaust, it rapidly evaporates which could well reject enough heat for long enough that the exhaust gas stream just can’t get the added fuel to auto ignition point before it all escapes out of the nozzle. Perhaps with better atomisation it could work, as the surface area might allow enough heat transfer into the fuel to overcome the cooling, but that seems a difficult target to achieve even for serious engine makers!
Well shit I basically said the same thing as I did not see your comment earlier. 🤣
That's a pretty good theory.
Have you guys tried running gas for the reheat? If introducing something that’s already gas phase doesn’t work that would debunk my hypothesis pretty quickly!
You could achieve a better atomisation through increasing the fuel pressure, like its done in direct injection engines (petrol and diesel). Sometimes upwards of 200 bar or 2900 psi, but these pressures are hard to achieve.(in comertial diesel engines its usually done by a highpressure pump driven by a cam on the camshafts) and he uses the fuel pressure to regulate the amount of fuel deliverd. Cars solve this problem by only activating the injector for a short amount of time (pulsing) to get the right amount of fuel. If you could solve these technical difficulties you could make an autoignition afterburner work. But i dont think this is a resonable thing to build. Its only advantage would be that i could prove or disprove your thesis
If that is the case, a fuel preheater should work. If however the fuel needs to be preheated a lot that would be very hazardous
Secondary, schmecondary ignition - EXCELLENT video, I love it!
I picked up a military surplus fog machine. It tows behind a truck and can single-handedly generate enough smoke screen to cover a international airport (with perfect weather conditions). I used it to fog up a pretty large gorge up in the mountains once.
Flame grill a steak in under a second?!!😈
I was thinking hot dogs:)
Love the channel, but I hate UA-cam Premieres
again such a great vid!
i wont built anything like that the next 10 Years. Still watching and consuming all of the explanations, just because its fun and intersting to watch you explain things
Your amazing. You've got the best light. Keep it up.
In this time of skyrocketed prices for fuel, this is a lovely waste of money. Having fun is priceless!!
Impressive ! Have you mesured the thrust and ISP of this jet engine ?
Yes...
@@TechIngredients Tease.
@@TechIngredients So what are the values, if I may ask ?
@@alisioardiona727 I'm betting Howard is doing a video on it .
@@texasslingleadsomtingwong8751 Howard ?
Watching you makes me want a different day job lol. Your creations and knowledge are simply awesome. 👍👍
what a well put together video of really specific engine information! thank you very much for posting to share :D
I just want to know if it can cook a mean hotdog.
rare, medium, well done or charcoal?!!😈
I wish I could be a jet engine after burner
Just eat some Taco Bell
go to a gay club and you will get your after burned 😂
oh thanks god, your video appeared again in my feed ! Hope the troubles you had recently are resolved!
Great learning experience this was! Thank you for sharing!