Testing the Hybrid Jet Engine - Update 3.0
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- Опубликовано: 5 окт 2024
- In this second part of a two-part video, I give a brief overview of the changes in our hybrid, turbojet engine. We then fire up the jet and measure its performance with and without fuel. I finish up with some of the pros and cons of this particular engine.
EDF Test - 9:55
First Fuel Test - 13:06
Previous video: • Hybrid Jet Engine - Up...
Thanks for watching!
I'm constantly blown away by the quality of the videos you guys have been making. So glad I stumbled onto your channel before it blows up. I can't think of a more deserving group of content creators.
I hope you mean blow up in the subscriber sense and not the engine sense XD
Indeed, i discovered this awesome channel due their dye laser videos. One of the best series about building a serious power dye laser.
ennit
I can just imagine Bigfoot watching Tech Ingredients on his GIANT Plasma Screen in his man cave!
@@linmal2242 The woods used to be a quiet place until these guys started firing off jet engines.
Beautiful clean design. I had never considered you could use alternately rotating fans rather than stators in a jet engine. Really cool.
They are a compromise solution. Stators also serve to allow for diffusion(compression) and in commercial jets these can articulate to enhance their efficiency.
A contra-rotating compressor is entirely feasible, but unnecessarily complex. Daimler Benz made the 109-007 (ZTL) engine towards the end of the war with a contra-rotating compressor - and it was a turbofan.
Variable stator vanes do not "articulate" to increase efficiency. The aerofoils in their 'open' position are designed to give maximum/optimum compressor efficiency at or near maximum power or cruise. They 'close' to permit low power operation without the compressor surging.
I'm sorry, but I don't see any practical use for this Frankenstein machine.
1) Water cooled. The steam adds "a few Newtons" of thrust. The input water tank adds far more than a few Newtons of downward force.
2) Where is the power turbine to keep the batteries charged? Thrust should be measured after a power turbine.
3) Battery & BMS weight. This is essentially dead weight with a low energy density.
What exactly is the intended application of this?
He does talk about power generation possibilities at the end of the video.
@@perpetualengine He does.. but during fan overspeed conditions. This would not get off the ground with enough battery energy, water and propane / methane to even approach the speeds this would occur at.
Never mind the design of the airframe required to take off so slowly and remain stable at high speed.
The best part was showing the fire on the ground, then the slow pan to the fire extinguisher.
But on the next fire up, there was an additional heat shield for the wooden bench leg. Creative engineering making things work... Love it! Keep up the GREAT work!!!
That's experience lol
That and "assess, not panic".
Along with prevention. I'm sure.
He would very likely have soaked that area in anticipation... Panic is useless at best, less than such in worse... And expecting it to happen implies he expects an outcome.
None of which involve the use of the extinguisher.
Keep going with these in-depth videos! we need more of this on RUclips.
You got it.
We love you, kind sir. You are amazing, humble, and blessed. God be with you :)
next month: "so I built my own wind tunnel..."
We did build our own anechoic chamber as you'll see. But, the wind tunnel will have to be donated...there are limits.
Very fair. Awesome video by the way!
Patreon?
I'd definitely support a Tech Ingredients patreon page.
Commercial wind tunnels actually have the fans on the far end. They pull the air through. That way the airflow in the wind tunnel is much smoother, because the fan blades aren't interfering with it.
Certainly one of my top 3 best reasons to spend time on RUclips!
Thanks!
This is seriously impressive work, I enjoy watching this develop
Thank you!
The sound this jet engine makes is truly fascinating. I wish I had more neighbors like you. Great video as always and thanks.
If I were your neighbor I'd walk over just to hang out and watch/help!
I'll bring Beer!
Yah & I'll bring the scotch whiskey. We should celebrate after your days experimenting with my help maybe:)
@@88mm44 @Stephen Cox Thank you for protecting your fellow man from methanol poisioning!
Seriously, thank you sir. RUclips needs more legitimate content like this!
You're welcome.
What if instead of using water to cool the hot end you used the fuel? It might make burning the less volatile fuels easier.
That is a good idea, it's elegant and should be tried.
Tech Ingredients that kind of fuel regenerative cooling is especially common on rocket engines it would be great to see if it could be implemented in a jet engine. It might be a method to reduce the heat efficiency loss that using a secondary coolant causes.
If you ever saw The Rocketeer, Howard Hughes (Terry O'Quinn) explains that they do just that to "cool the chamber and preheat the fuel at the same time" in the rocket pack.
Payton Gunter Something tells me he is "fully aware" of these affects.
Kinda like every every rocket motor?
I wish I had you as a neighbor. I'd be over all the time, learning and helping in any way I could. Sounds like your neighbor needs to relax or take up a hobby.
Who is this guy?! He is a super engineer/certified genius. Can you please do a video where he talks about his background in his early life/education/ and then career?
He's probably a professor of engineering at a university.
Fav thing about this man and channel: He is a man with dreams and knowledge on how to reach them. But then he shares with others who may have similar dreams how he reached them 😍
That's it in a nutshell.
Tech Ingredients I hope you and yours are all well! I wish you the best of times in the coming season and holidays! Take care(:
That is the biggest, baddest ESC I've seen in my life holy shit
The lightbulb went off in my head when you described the regenerative braking on the turbo fan to pull heat out of the incoming air.. Awesome.
Thanks!
Really amazing project, this channel keeps getting better
Thanks! We're trying.
I worked as an engineer at a company that makes military jet engines, this was an awesome display of a jet engine.
Thank you!
Worlds most overly complicated shop heater.... subscribed.
and noisiest
@@jazldazl9193 Sounds just like a shop heater to me
You make this world a better place to be I feel so lucky, and grateful to have stumbled across your channel, your curiosity and willingness to jump in with both feet and try something new without fear is inspiring. Not many have the courage to be authentic, for me it’s not just all the technical stuff it’s that your love of it shines through and that makes all the different in the world! Never stop doing YOU! Love it thank you.
Clear precise information just what my brain needs, very Grateful plan to pay in future . Thank you Tech ingredients.
I'm so happy I stumbled across this channel. I absolutely love your clear and precise explanations. Your broad knowledge of engineering and physics is phenomenal. Thanks very much for sharing your knowledge using such high quality production.
Subscribed for life.
Great!
Thanks!
Just a thought, but you might want to relocate your fire supression equipment further away from the spot where a fire is most likely. It would suck to be standing there with your hands in your pockets because your fire extinguisher is sitting at the center of a flaming methanol puddle!
Good point!
Former Crew Chief here. These sounds make me smile!
I would absolutely love it if you was my neighbour, your experiments are fascinating and cool as hell.
I don't care what any neighbor would say - you, Sir, gotta be the coolest dad around! You remind me of my own dad. He was a Civil Engineer and Professor, and I hope your kids appreciate every second they get to spend with you, and all they get to learn from your vast base of knowledge! I miss my dear departed father immensely, and I am so grateful for everything he taught me all the time we got to spend together!
As for fuels I would have tried to slightly modify and fit the burner of a Primus MultiFuel III as a flame holder. The Primus MultiFuel III can burn gas, chemically pure gasoline, diesel, kerosene and aviation fuels. It is quite small, and would provide a relatively small amount of back pressure. Liquid fuels in the Primus system are contained in a container that is pressurized by hand pumping. This could of course be pressurized with an electric pump or a small gas cartridge. A lot of R&D has gone into the design of the nozzles in the Primus MultiFuel systems to get the optimum air-fuel mixture. It is small and light weight, and it can sustain very high temperatures, so I would definitely have tried that commercially available system with this hybrid engine to run on various liquid fuels. I have a hunch that would be just the ticket needed to get a great air-fuel mixture with very little back pressure towards the compressor area. Just an idea for any future modifications to increase the trust and fuel efficiency of this magnificent engine.
If I may ask; what is your background? You have an eminent knowledge of industrial systems, which leads me to think maybe you are working with R&D or process supervisory capacity in some field of industry, but at the same time you have a great natural talent as a presenter of knowledge, so I'm thinking you might just as well be a professor at a technical college/university? Thanks again for sharing your brilliance, Sir!
Awesome series guys! As always, exceptional quality of video, left feild thinking, well excecuted, and a damn fine peice of kit. Love it!
If i can contribute anything to people watching, those marine "switches" are actually isolators. Can handle 200A easily, but *Can Not* switch it. Only switch them at no load. They arc internally, damaging the contacts, make a high ohm connection, getting them hot, n they melt (after a 100-odd throws). No problem here, the ESC does the switching, but anyone who needs to switch 100-odd amps, these wont cut it. The expensive switches are pricy for a reason, and worth it.
We used to use them, power switch for 10x 20a 12v-5v dc-dc converters. The inrush current destroyed the contacts, an eventually melted every single one. They look good, but an industrial dc rated switch is far more reliable. Again i stress, no problem here tho, just sharing something i learnt the hard way :-D
This gives me a new appreciate for the engineers that were able to make jet turbines that run on a single fuel source through all regions of operation.
I mean it took the massive efforts of the German and British war departments with lots of money thrown at them. It was hardly a 2 guys in a shed operation.
14:16 I like how you said everything that needed to be said there with the camera.
Just found your channel and I am blown away. I have been looking for a channel like this that has concentrated on this very area.
Not to mention his son being able to be part of this build, can't ask for a better way to bond
I subscribed!
Thanks so much. It is indeed a family affair.
I find it funny how you mention it's so loud that even neighbors are complaining, but you fail to ever use the ear-protection you have hanging from your neck. Great video by the way. It's really neat to watch physics in action in this way.
I think they're a little sensitive...but when you're running this up again and again, the protection is nice
Agreed. Its loud and unpleasant when you are doing dozens of tests, but it's not so loud that you can't do a run or two without the ear protection. Maybe he was a being little sensitive or maybe it was some of the testing we did late at night that put him off.
You need to vaporize the after burner fuel by running tube of copper around the hot part and semi vaporize it and then inject it
I think I've learned more watching your videos than I did in acquiring my A&P licence and associates degree in aviation maintenance technology. Great job! Keep 'em coming.
Thanks, will do!
Noise, what noise? I would love to have a neighbor making this kind of noise! I would probably help him make more.
Fascinating! Reminded me of my youth when I and my brother bought a so-called "jet engine" from an ad in the back of a popular magazine for something like $1.50 and ran it in our backyard scaring the daylights out of our neighbor who lived behind us. I was maybe ten years old, brother was 9, and this was over a half century ago. If I remember correctly, the engine was just a spent CO2 canister with some steel wool or other porous material stuffed inside. You poured gasoline into the thing, closed the nozzle which had a tiny orifice pre-drilled into it, and lit a fire in a small tray that was slung underneath the canister. We suspended the whole apparatus by string under our mother's backyard laundry hanger (we made sure she wasn't around) and this allowed it to spin like a toy airplane in a horizontal loop maybe three feet in diameter under the thrust it generated from the expanding burning fuel. For a few seconds it shot a nice stream of liquid flame out the nozzle, and we thought that was the coolest thing we'd ever seen, but I had to do some fancy talking to assure our neighbor that it was perfectly safe, which of course it wasn't.
Also, I'm glad to see that for part of your video at least you were sporting ear protectors, but for most of the loudest tests you didn't wear them! I can't overemphasize the fact that you're gunning for a silent retirement if you don't wear them for these tests. Hobby motors, jet engines (small and large), power tools and even loud music are just a few of the many things that can permanently damage your hearing so it pays to wear hearing protectors or turn down the volume whenever you're operating this equipment.
Can't wait to see it's manned maiden flight. :-)
We're looking for volunteers, my neighbor declined.
I bet Colin Furze would do it. He'll be fine as long as he remembers to pack his safety tie.
Ford mustang gt500 2023?!?
2023 Chevy Camaro SS amphibious plane model with optional champagne cooler.
Looks like a ton of fun, what a privilege to have the means for this.
That's why we're sharing it. That's almost as much fun.
Some thoughts on the design:
When considering the use of such a hybrid engine in a R/C aircraft, the design has some serious problems,
most of which will result in a rather heavy design.
First of all the water cooling: additional fluid, additional pump(s) and an andditional jacket are all heavy
Secondly, the massive (and therefore also heavy) flame tube, which seems to be required to achieve a good evaporation of the fuel
My suggestion to get rid of these items: using a combustor liner, in which part of the air is used to burn it directly with the fuel,
while the remainder is added through additional holes in the sidewall of the combustor liner, so a jacket of cool air is generated,
protecting the combustor liner from direct exposure to the flame. In this way, several layers of metal can be skipped,
the combustor liner can be made out of thin sheet metal, since it does not require to have a big heat capacity.
Here is an example of combustor liners:
ruclips.net/video/xycmedGUdB4/видео.html
To compensate for the lack of effective evaporation area, a beefier fuel pump combined with a more aggressive fuel nozzle,
that creates smaller dropplets of fuel, might be the way to go: a fuel pump is required anyway when using liquid hydrocarbons as fuel,
so there is no additional part - just a slightly heavier one.
The higher energy demand of the heftier pump is still marginal compared to the dual fan arrangement.
Talking about the dual fan arrangement:
wouldn´t it make sense to decrease the diameter of the tube between the compression stages and maybe even using a secondary EDF with a smaller diameter?
Greetings
Rage
I was saying the same thing. You have high flow and you need to reduce the area to increase the pressure.
I would love to bring my CNC mill and 26 yrs of Toolmaking experience for a shot at being your assistant. Thanks for the work you put in to every project you do. As you know, Something worth doing is worth doing right! Very impressive and professional.
It worked great when we attached it to the aircraft; only problem was the massive forest fire we created everywhere we flew.... oh, and the 10 km extension cord.
You are so amazingly versatile with all your varied projects- great stuff.
Keep it up! Really inspiring!
Proper engineering. Excellent work. Had to leave this video for Sunday so I get enough free time to properly absorb the content.
Quality content as usual!!
Simply thrilling. The depth and variation of your content is beyond compare. Amazing work all around. The quality of your videos is stunning. You are a terrific educator. Thank you.
How can one channel be so based?
It's like you made a channel by reading clickbait titles and actually taking them to realization. It's perfect. I hope it never sells out.
Based? Biased? What???
Based.
DerDosman f%#$@*? why swear?
Profanity is what results when one wishes to express oneself, but hasn't the required breadth of vocabulary and articulation to do so effectively, nor the restraint pr consideration to respect those around them. Not being a snooty know it all, that's genuinely what I feel, and I've sworn plenty, and it's stupid.
What a blast! Thank you.
Sir , I really like your design and build. Just want to trow one suggestion in....you may be able to use the fan sections of a used turbo-molecular pump...higher compression at a low price.
Of course you have to make a lighter housing and drive it with a stronger motor.
Thanks!
I have worked with a few of these and own one which we are attempting to incorporate into our vacuum system. Their fans are light weight and I mean extremely light weight. Many can be damaged from operating at sea level air pressure.
@@TechIngredients ....never thought about that, never took mine apart.
you never cease to amaze me. you sir are a legend. thank you for all your hard work.
Thanks!
How do you have the time and money to do all this wonderful work?
Lack of sleep.
@@TechIngredients "we'll sleep when we're dead" ;D
hah! I really admire your dedication, lack of sleep is the fuel for most discoveries, not planned "schedules" - you get nowhere in the comfort zone of 9-5.
So you're a bunch of academics, then? :P It would explain a lot.
I bet he's a retired engineer.
The potential for a subsonic ram air jet engine is virtually unexplored. I don't know of any commercial one. Big or small. The proof of concept now depends on tests in a wind tunnel to verify what kind of airspeed is needed to work without power on the fans. The regenerative ESC is just icing on the cake. What a beautiful engine and unusual approach to a hybrid design. Hope to see it develops. Good luck!
Thanks!
At this size of fan and the angle of the fan and stators the air would would stop and just flow around the fan "engine". You would need a large funnel of sorts to get enough pressure to flow through the fans which would drag in which an aircraft need for this engine would never reach the speeds required.
I like how you told us to convert to metric, then used metric for nearly all of the measurements following that statement hahahaha.
I hear this metric vs imperial issue a lot. I find it funny. and will often needle the commenters a bit. Many of the most vocal are European and claim this international standard should be followed for unanimity or convenience while at the same time the North American is considered limited because he is not poly lingual.
Much of the tooling, supplies and materials here in North America are specified in imperial units and this is one of the largest if not the largest market in the world . That tubing is 0.029" ID tubing and not specified as .7366mm tubing, so sometimes I don't convert every value into metric...even if I wanted to.
one of the coolest videos I've ever seen on youtube, I loved this, so happy I found your channel.
Thank you!
I'm glad you did, there is more on the way.
Interesting but use the spinning fans from the ram speeds to power a microwave to heat the exhaust to extreme temperatures. Or just use a plasma arc in the exhaust. Make your exhaust temperature go from 2000C to 28,000C and see this thing be actually useful. Think much bigger fans, and much larger restriction for more compression and ultimately more electrical power at speeds for heating the exhaust plasma. When you make it big please get ahold of me.
At first I did not beleive my eyes! Very intersting and extraordinary explanations on how things work without the usual "secret ways" that I got from ingeneers when I asked questions them. Thank You for the good work.
this world is such sad place... if you listen football loud on your tv your neighbor will come to join you, but if you are testing your diy jet engine your neighbor will come to complain... i really really cant understand why people are ignorant and not curious or interested about anything... the huge majority of people are really only NPC...
IamIUareU To be fair, the jet is a little louder.
@@brainmind4070 if my neighbor is testing his jet engine i would like to be part of it even if its in 4am... if you want silence then move to the woods... if you choose to live in community there will always be neighbors testing jets, neighbors listening loud rap music, dogs, cats, metro, cars, buses, trucks, construction work, people, sirens... at least this noise is constructive and not some lame pop music and it wont last long anyway...
Seriously don't you just love watching that mad scientist type of person that's just got an incredible mind and brain to do incredible things mind boggling to watch this guy excellent video
attach it to your bike.
Actually...
the ramjet factors of this engine at speed are genius, now your design choices make sense to me.
Thanks!
ahaha science humor..actually the difference between an atom bomb and hydrogen bomb is like the difference between a bb gun and a bazooka ahha..but for novices..pretty well said..
not too noticable..well done..impressive...how much thrust
a steam jet... incredible...youre absolutely correct ...the added mass of water
does increase the thrust
I really appreciate the debrief afterwards. I love the low cost maintenance this engine has!
Please wear ear and eye protection in the future.
Why do people say this? He had ear protection and had on glasses, someone this smart who can do these things is not going to harm themselves because they didn't read your comment. Most people that say this would watch a video in a second called "man not wearing safety googles loses an eye" then laugh. Save it for your kids, I think he knows what he's doing hence he has never been hurt so far.
Shut up
The design issues regarding airflow and pressure parameters reminded me of the Pratt Whitney JT8D engines I used to maintain as an Aviation Machinists Mate 2/C in the Coast Guard at their Opa Locka-Miami Airstation back in the mid 1970's.
I rarely comment on a video, but DAMN, it is hard not to comment on your ideas and the way you apply them. It just blows my mind. I wish you the best, and please keep up the good work :)
Thanks so much!
I can't decide which one I like best.... you or the Applied Science guy.
I love both of you!
I find it amazing that Frank Witchelalmost 75 years ago pioneered jet engines it does not diminish your accomplishment by any means I love the video
So cool.
Can't wait for the pulsejets ... that's something that most people could actually just build out of scrap and I bet that you're gonna make one that's actually practical.
A pulse jet is on the way. We're basing ours on a modified Cyclone engine from Robert Madox. That engine is already pretty good, but the major problem with any of these engines is terrible fuel management. We're going to fix that along with some other interesting modifications.
i haven't been impressed by a piece technology like this in a long time. Super impressive.
Thank you so much for sharing some of your world with us. I love your videos.
Thanks!
you have set a really cool way of compressing the air
These may just be some of the best engineering based videos I have ever seen. You guys are diy sure but this was not an amateur project by any means. Thanks for the content and congrats on the build.
Wow! Thanks!
I love your videos. You're taking all the calculated concepts I learn in school and applying them to real life which is what I'm in school in the first place for. Thank you for the clear and detailed videos.
You're welcome!
Please please please do not stop making videos... Many channels ( which I really do believe your channel will be one of them) explode in views and subs once the word gets out and I think that is right around the corner for you guys! Don't stop!
The sound is magnificent.
It was indeed!
Shoot, I wouldn’t be complaining, this is awesome.
Congratulations! Very well done. You get those parts together and you can count me in as a customer. I have a few ideas I'd like to explore myself. Very best wishes moving forward.
Thanks!
Great channel Great content. In the science world, you are a dude. These are the type of projects we are would love to do but for different reasons we are unable. So we get to see them through you.
Thanks for all the awesome content. You guys always produce immensely informative videos. Techingredients is a big part of my technical content intake.
This man has likely *forgotten* more than many will ever KNOW, in a lifetime.
Why have i never seen this channel before ?!!
Famtastic work
This is exactly what RUclips is made for! Excellent work!
I was watching the whole video with a smile on my face! :-)
You guys are just awesome!!!
You make learning fun dude, THANKS
I used to have a pulse jet engine that I bought from a laboratory science store . It worked very well but I was NOT aware how LOUD. This thing was . So loud that I didn’t want to start it again after playing with is for a couple months I gave it away !
You are out of control. In a very good way. I love it.
I thought initially that this was a bit of a gimmick, just something fun and exhilarating for you to mess about with, but in the conclusion you raise some genuinely interesting applications. All the best with this fascinating project. :)
Thank you.
Man I love me some nerds who make nerds look not nerdy. This channel and Applied Science are the shiz. Rock on.
Ive always advocated that. Work out and learn how to present yourself so that if you are a geek it is by choice and not as a fall back.
Excellent, sir. Absolutely excellent.
Thanks!
Great job. It is all your priceless effort
I think it is a success as a test set up. Congratulations!!!
Thank you!
How this video has less views than the first I dont know. You would think people want to see it work more than they want to know how it was built. Love the videos. Especially your HVAC type videos. I work HVAC and love the new ideas for more efficient cooling. Keep it up!
I love your lab. One day I will have a lab like that. Inspirational.
Good luck.
So cool. I really enjoyed this jet series so far.
Thank you.
As usual, excellent camerawork, in a very interesting video. Keep 'em coming!
My goodness, this video REALLY tests the frequency extension and dynamic range of my speakers. The hybrid turbojet at full power is REALLY ear piercing, it feels like daggers stabbing at your eardrums.
Incredible design and quality work. Glad you share it with us.
I've said this before but I'll say it again because it can't be said enough. Thank you, Thank you, thank you, for the extraordinarily generous gift of your own learning, knowledge and insight that you are handing out here for free like Santa with a big bag of pressies. I know about some of the things you know about, and some not at all, but you regularly provide glue to stick the disparate dots together and make me go Hmmmm yes! Hope the neighbour situation was concillatory ;)
Thanks, that is what makes all the work worthwhile.
We actually got him to hold one of the lights near the end of the video. Loud or not...its a jet engine for Peat's sake!
This channel is just the right ratio between technics and entertainment (more technical than most, could go even further). I love it. The name, hybrid jet engine, is a bit euphemistic though =) its more like an electric fan with an afterburner
This guy is literally living my dream life
Outstanding work sir , keep up the great work .
Glad to see you've worked out a load of your audio issues.
Always record at as many sources as you can, you can always discard the low quality.