istg watching you is like watching an ancestor of scotty from star trek. you really put your "ah-ha moments" where we can see how it drives your work forward, and you always have this like WONDER for what you're achieving. (total trek fan here ofc btw.) idk fully why but this really hits the spot i only usually get hit with when watching trek and they do an engineering-solves-the-day plot. only this has the added thrill factor of actually happening on planet earth right freaking now. I LOVE THIS!!!
Awesome great progress. We had a hung start yesterday and we suspect flow divider. For your centrifugal tip clearance. You can make a abraidable self lapping coating by mixing graphite flakes in with some paint. I have some duplex nozzles kicking around and internal flow diagrams if you would like as well. Looks like your making alot of progress !! Thanks for the vids
To actually Increase the thrust by quiet a margin. you would require a Compressor wheel setup outside the combustion chamber (compressors and stators both).
In a radial compressor the volute geometry serves the role of the stator blades in an axial design. I am tempted to load up his models though just to have a look at the compression and collector area of the volute because now i am curious. this is a huge reason why he is using a radial compressor and why they are used so commonly. Radial turbines get really crazy like this because you have multiple stages of compression taking place on a single rotating part. this is why they may have three blade lengths with different geometry. as the air is forced farther into them. more blades and different angles are turning the flow laminar and compressing it.
Exactly! The diffuser section is a part of the upper volute and serves to expand the flow causing the speed to decrease and the pressure to increase. I think I'll talk about it a bit more in one of the upcoming videos. Cheers!
When you need more compression, put some axial compressors before the centrifugal compressor. The diameter of the first axial compressor stage needs to be greater than the intake of your centrifugal compressor.
New here, but have you ever thought of using a standard oil furnice nozzel? You basically made one. There are heaps of different types to experiment with. Like spray angle and field distribution as well as nozzel size and flow characteristics.
I think that's actually where I got the idea for the nozzle, I saw a diagram or something in passing. The issue for me was the size of those nozzles, they seem quite large and have a very high flow rate, much too high for what we're working with at the moment. Maybe in a larger engine, or an afterburner, I'll look more into furnace nozzles! Thank you!
Great to see you using gramms, now also use bar or mbar for the pressure :D (Newtons would be the right dimensions for thrust, but I'm fine with it ;) )
probably a flawed idea, but ultra sonic humidifiers make incredibly fine room temperature mist, im thinking that if you could add that disk actuating at very high frequency's to vaporize the fuel to the main intake in combination with your new nozzle, it could yield better results.
I'll be starting 1st year this fall, I'm currently upgrading a few classes that I didn't take in high school. The current extent of my knowledge is self taught, so it means a lot to hear that it has at least some merit. Thank you!
@@Neally Very impressive! I’m a junior CE major and I would’ve guessed you were taking junior or senior level classes by now. Great stuff man keep it up!
Thanks! The thrust measurement just represents how hard the engine is pushing, so that would be how much it could carry upwards if we ignore the engines weight
How do you know the thrust is coming from combustion in the engine and not just airflow from the turbo? id assume that given the turbo is moving alot of air surely it would make a fair bit of thrust on its own. Super cool project i look forward to seeing more of it!
Yeah so in the very first jet engine video I did I tested the engine with only the compressor running, and it made about 25 grams of thrust. Based on that I've been treating the compressor thrust as essentially negligible
I have a question Does the engine make more thrust after ignition? Because the compressor is electric, so shouldn't the overall pressure be equal to the pressure produced by the compressor? Thanks
The engine makes something like 5x-8x more thrust after ignition. Because the exhaust is somewhat restricted, the combustion adds to the internal pressure. Ideally the compressor would make significantly more pressure making it so that the pressure the combustion adds is insignificant, but I haven't gotten us there yet. Great question!
how much pressure can u get inside the combustor? think about several stages of compressors with intercoolers between to not melt the plastic :D thermodynamic efficiency depends on temperature and Pressure the higher the better :)
Very good job ❤ can we generate electric power by this air force engine ?? And please if you have any ideas about generating electricity please tell us ❤❤
The answer to the question of "why are you like this?" Is the same as the answer as to why you don't use a brushless motor. Collage is good at taking your money and teaching you how to vomit words uncontrollably XD
Hey man, how high of kv motor do you think you'd need. I have some smaller high kv drone motors and esc laying around. From one broke college student to another mad respect you are getting this done!
What an absolute stud. Thank you! The compressor is meant to do about 50k rpm, but don't worry about it I'm already building a turbojet so our motor issues will stop being a problem very soon!
Why are you doing this other than fun? A gas turbine extracts energy to turn the compressor. The power ti increase output is coupled directly to the turbine wheel. Your setup has a maximum compressibility limit based on the power of your brushless motor. You'll never reach the kinds of thrust a jet turbine can. In fact there's no point to even have a turbine wheel at all. What would be more interesting would be for you? To attach a turbine wheel to a electric generator and extract the electrical energy from the turbine wheel. And feed it back to the brushless motors driving the compressor. There's something on the order of 90% efficiency. Or better on electric motors. So you likely would be able to extract more power this way and accelerate the turbine even higher, but likely a 3d printed compressor wouldn't survive the kind of rpms we're talking about. Still, it would be interesting to see this. You'd have to gear reduce the turbine wheel to the generator to get to a rpm range it can work efficiently at and need a way to convert the power efficiently and smoothly back to the motor. Mayne capacitors?
I'm mainly doing it to learn, and to incrementally improve my engine systems. The Arduino, the compressor, how pressure works inside the engine.. All of that is stuff I started to figure out because of this project, and now I'm using that to build a proper turbojet
Wait , can you burn kerosene with your current compressor air flow, might not burn well, upgrade to brushless dawg, perhaps take a used car turbo and use the motor to power it
I'm really not sure, I've read that karosene needs more pressure for good combustion and idk if the engine produces enough. I'll probably use propane to get the engine up to speed and then swap to karosene mid burn, which may take care of that issue. Either way, I'm working on a turbo jet so the motor and pressure won't be an issue for much longer
excellent video! drip water that is charged by positive terminal from above to hit a negatively charged bit of aluminium wire from a welding spool. the water should flash into 100% hydrogen and the aluminium oxide waste can always be reused.
When you said you were working on uploading things, and initially posted a free thingiverse i didnt think you meant to paywall it... But fine... When my toolchanger system for vorons is done youll be happy to know that despite my total income after bills being less than 100 dollars a month i intend to remain optional donation only...because that's what the maker community is supposed to be all about.
I get where you're coming from, and maybe you're a better person than I am for it. But by monetizing my work I'm able to make far more progress on my projects than I would be able to otherwise, and no one is forcing anyone to buy my stuff.. I'm sure there's other designs out there.
10/10 literally just found this channel 15 mins ago. Best timing ive ever had with a new video
Good timing indeed haha, glad to have you here!
same
same
no idea why YT recommended me this channel but I'm now invested in DIY jet engines. dope shit
Lol I think it's the perfect intersection of problem solving and playing with fire.. Welcome to the club 😂
discovered this channel like an hour ago, its amazing
Lol thank you! Glad to have you here with us!
Woah, UA-cam algorithm is giving you a deserved spot on peoples fyp, definitely a sub worthily, keep it up
Yeah definitely seems like it, it's kinda crazy. Thank you!
For cheap and effective fuel nozzles, you might also try furnace nozzles. They come in various flow rates, cone angles, and spray patterns.
istg watching you is like watching an ancestor of scotty from star trek. you really put your "ah-ha moments" where we can see how it drives your work forward, and you always have this like WONDER for what you're achieving.
(total trek fan here ofc btw.) idk fully why but this really hits the spot i only usually get hit with when watching trek and they do an engineering-solves-the-day plot. only this has the added thrill factor of actually happening on planet earth right freaking now. I LOVE THIS!!!
Impressive, good to see you learning. You’ll be an engineer before you know it. Thanks for passing it on.
Thank you, Tim! Hope you guys are doing well!
Beautiful to witness the evolution! TY
Yeah haha, it's wild to look back at the progress thing has made. I'm looking forward to seeing where it goes in the future
that is good and corect improvment. mist for fast combustion and dont lose fuel uncombusted.
Awesome great progress.
We had a hung start yesterday and we suspect flow divider.
For your centrifugal tip clearance. You can make a abraidable self lapping coating by mixing graphite flakes in with some paint.
I have some duplex nozzles kicking around and internal flow diagrams if you would like as well.
Looks like your making alot of progress !! Thanks for the vids
Thank you! The graphite trick sounds brilliant, I'll have to try it sometime!
please make longer videos. a 20 min masterpiece is much better than small little updates.
I'll do my best, my friend!
To actually Increase the thrust by quiet a margin. you would require a Compressor wheel setup outside the combustion chamber
(compressors and stators both).
In a radial compressor the volute geometry serves the role of the stator blades in an axial design. I am tempted to load up his models though just to have a look at the compression and collector area of the volute because now i am curious. this is a huge reason why he is using a radial compressor and why they are used so commonly. Radial turbines get really crazy like this because you have multiple stages of compression taking place on a single rotating part. this is why they may have three blade lengths with different geometry. as the air is forced farther into them. more blades and different angles are turning the flow laminar and compressing it.
Exactly! The diffuser section is a part of the upper volute and serves to expand the flow causing the speed to decrease and the pressure to increase. I think I'll talk about it a bit more in one of the upcoming videos. Cheers!
please remember me when you hit the 100k ;) these video's are awesome and i can't wait for more!
Of course haha, but let's hit 10k first :P Thank you!
sick video and project!
Thank you!
When you need more compression, put some axial compressors before the centrifugal compressor. The diameter of the first axial compressor stage needs to be greater than the intake of your centrifugal compressor.
I'm gonna be working on an axial compressor for my new engine soon
I ran into you on tiktok. You are gonna get big man. If you keep this up youll be up there
Thanks, I appreciate it!
U could maybe try and use a regenerative compresseor, i heard they work better for 3d printing...
Thanks, I'll look into it!
awesome high quality videos like these and only 7.5k subscribers is insane, this channel is gonna blow up soon!
Thanks! I'm glad my work is appreciated, cheers!
New here, but have you ever thought of using a standard oil furnice nozzel? You basically made one. There are heaps of different types to experiment with. Like spray angle and field distribution as well as nozzel size and flow characteristics.
I think that's actually where I got the idea for the nozzle, I saw a diagram or something in passing. The issue for me was the size of those nozzles, they seem quite large and have a very high flow rate, much too high for what we're working with at the moment. Maybe in a larger engine, or an afterburner, I'll look more into furnace nozzles! Thank you!
cool engine dude, i'm keen to keep seeing your progress.
Thank you, friend! I am too, this project has become all-consuming 😂
Yo, love this channel. Great work. What do you film with? I'm looking at cameras and your video quality looks great.
Thanks! I use a Sony a6400 with a 30mm F1.4 lens
Great video, great channel, best of luck !
Thank you!
really good bro! never seen someone this talented I'm making a jet engine too and i need some advice,can you help me?
Appreciate it, friend! Ask away, I'll do my best to help
great work brother, hopefully you can eventually do a shaft driven design when the channel picks up some funding ;)
Thanks man, I'm already working on one ;)
Good stuff!!!
Thank you!
Just discovered this, you're pretty talented, good work.
Hey, thank you!
Great to see you using gramms, now also use bar or mbar for the pressure :D
(Newtons would be the right dimensions for thrust, but I'm fine with it ;) )
this is awesome. can you show how you made the combustion chamber or make the files available?
Thanks! I can talk about it next video for ya, I'm build a new engine anyway so it works out
probably a flawed idea, but ultra sonic humidifiers make incredibly fine room temperature mist, im thinking that if you could add that disk actuating at very high frequency's to vaporize the fuel to the main intake in combination with your new nozzle, it could yield better results.
I like that idea! I don't think it would work for the main combustion chamber, but we could try something like that for an afterburner!
Turbines make this high pitched sound already. So the idea is to put injectors as close to the rotor as possible? Like ITB carburettor?
Love it!
Keep going.
Cheers! Thank you! I'll be back soon ;)
Just found your channel. As a fellow Canadian engineer love it. If you need some help with the arduino, let me know.
Awesome, thank you! 🤟
Damn that spiral this is smart
You should have seen the dance I did when it worked😂
Thing*
@@Neallyyeah I would have too!!! You’re a really cool guy
Super 😍Love the Q&A at the end 👍👍
Awesome, thank you!
Love your videos, you should see about other fuels
Thank you! That's my plan for the next video!
Found and subbed 20 minutes ago. Cool channel, keep up the good work.
Awesome, thank you! Will do, I've got some cool stuff coming very soon!
What year of college are you in? Your engineering knowledge is impressive and I love how straightforward and digestible your content is 👍🏻
I'll be starting 1st year this fall, I'm currently upgrading a few classes that I didn't take in high school. The current extent of my knowledge is self taught, so it means a lot to hear that it has at least some merit. Thank you!
@@Neally Very impressive! I’m a junior CE major and I would’ve guessed you were taking junior or senior level classes by now. Great stuff man keep it up!
Great video! I never understood the thrust measure though, does that mean that it can carry that much upwards?
Thanks! The thrust measurement just represents how hard the engine is pushing, so that would be how much it could carry upwards if we ignore the engines weight
Sehr gutes Video !👍❤
this is like my new favourite chanel. i would love to be a patreon member but i am a broke college student too😆
No worries my friend, I appreciate your support regardless! Thank you!
great channel - better than integza, jsut need more time
Thank you! I'm glad you like it!
How do you know the thrust is coming from combustion in the engine and not just airflow from the turbo? id assume that given the turbo is moving alot of air surely it would make a fair bit of thrust on its own. Super cool project i look forward to seeing more of it!
Yeah so in the very first jet engine video I did I tested the engine with only the compressor running, and it made about 25 grams of thrust. Based on that I've been treating the compressor thrust as essentially negligible
wow thats so much less than i would have assumed. Makes me even more amazed by the thrust numbers youre getting from your engine! @@Neally
Yeah it was kind of shocking when I first tested it!
I have a question
Does the engine make more thrust after ignition?
Because the compressor is electric, so shouldn't the overall pressure be equal to the pressure produced by the compressor?
Thanks
The engine makes something like 5x-8x more thrust after ignition. Because the exhaust is somewhat restricted, the combustion adds to the internal pressure. Ideally the compressor would make significantly more pressure making it so that the pressure the combustion adds is insignificant, but I haven't gotten us there yet. Great question!
how much pressure can u get inside the combustor? think about several stages of compressors with intercoolers between to not melt the plastic :D thermodynamic efficiency depends on temperature and Pressure the higher the better :)
We need a video soon!!
Saturday!
Very good job ❤ can we generate electric power by this air force engine ?? And please if you have any ideas about generating electricity please tell us ❤❤
Thank you! Not with this engine, but I'm working on a new one that definitely could! I'll see if I can work on a generator in the future!
The answer to the question of "why are you like this?" Is the same as the answer as to why you don't use a brushless motor.
Collage is good at taking your money and teaching you how to vomit words uncontrollably XD
Yeah that sounds about right😂
Hey man, how high of kv motor do you think you'd need. I have some smaller high kv drone motors and esc laying around. From one broke college student to another mad respect you are getting this done!
What an absolute stud. Thank you! The compressor is meant to do about 50k rpm, but don't worry about it I'm already building a turbojet so our motor issues will stop being a problem very soon!
@@Neally noice!!
backyard jet build when
Soon!
Do you have the files for the impeller? They are not there in your patreon.
It's included in the compressor files on there
what kind and what brand do you use for the welder ?
It's a cheap yeswelder off amazon!
Hopefully this channel isn’t dead… no new posts in 4 months
Still here! Life just gets in the way sometimes.. I'll be back soon!
@@Neally oh yay! Can’t wait for your next upload
Why are you doing this other than fun?
A gas turbine extracts energy to turn the compressor. The power ti increase output is coupled directly to the turbine wheel.
Your setup has a maximum compressibility limit based on the power of your brushless motor. You'll never reach the kinds of thrust a jet turbine can. In fact there's no point to even have a turbine wheel at all.
What would be more interesting would be for you? To attach a turbine wheel to a electric generator and extract the electrical energy from the turbine wheel. And feed it back to the brushless motors driving the compressor.
There's something on the order of 90% efficiency. Or better on electric motors. So you likely would be able to extract more power this way and accelerate the turbine even higher, but likely a 3d printed compressor wouldn't survive the kind of rpms we're talking about. Still, it would be interesting to see this.
You'd have to gear reduce the turbine wheel to the generator to get to a rpm range it can work efficiently at and need a way to convert the power efficiently and smoothly back to the motor. Mayne capacitors?
I'm mainly doing it to learn, and to incrementally improve my engine systems. The Arduino, the compressor, how pressure works inside the engine.. All of that is stuff I started to figure out because of this project, and now I'm using that to build a proper turbojet
Feel free to reach out if you want some assistance with your Arduino situation. Would be fun to get to contribute 👍
Sounds good, thank you!
Wait , can you burn kerosene with your current compressor air flow, might not burn well, upgrade to brushless dawg, perhaps take a used car turbo and use the motor to power it
I'm really not sure, I've read that karosene needs more pressure for good combustion and idk if the engine produces enough. I'll probably use propane to get the engine up to speed and then swap to karosene mid burn, which may take care of that issue. Either way, I'm working on a turbo jet so the motor and pressure won't be an issue for much longer
excellent video! drip water that is charged by positive terminal from above to hit a negatively charged bit of aluminium wire from a welding spool. the water should flash into 100% hydrogen and the aluminium oxide waste can always be reused.
That's a cool idea! I assume you mean for the fuel system?
@@Neally idk sure why not the fuel system
Where’s the next video I can’t get enough of
duddde where u been we need an update hahaha
Haha unfortunately work has kept me busy, I'll be back soon though!!
We need to get more people to follow you 👍
I don't know how you still don't have 1m subs, hidden gem of UA-cam.(PS: Why don't you use hydrogen instead of kerosene, will be kinda fun🤓)
Thank you! That could definitely be cool!
Like and sub People. get this man more popular so he can afford more stuff for his videos :D
Agreed😂
is a pound of thrust alot
No, but it's a lot more than the first version of the engine produced!
🔥
HHO I know people are scared off hydrogen but it’s the only fuel that makes sense to me….
En español por favor.
Nice project, but in my opinion, it's more of a turbo fan powered exhaust than a jet engine.
When you said you were working on uploading things, and initially posted a free thingiverse i didnt think you meant to paywall it... But fine...
When my toolchanger system for vorons is done youll be happy to know that despite my total income after bills being less than 100 dollars a month i intend to remain optional donation only...because that's what the maker community is supposed to be all about.
I get where you're coming from, and maybe you're a better person than I am for it. But by monetizing my work I'm able to make far more progress on my projects than I would be able to otherwise, and no one is forcing anyone to buy my stuff.. I'm sure there's other designs out there.