The start of our video series on jet engines. We demo this engine running at 2 million BTU and explain the principles behind the design of our hybrid electric jet.
The start of our video series on jet engines. We demo this engine running at 2 million BTU and explain the principles behind the design of our hybrid electric jet.
Finally! Someone who actually understand whats going on inside a jet engine and has the ability to articulate it correctly!
Thanks!
If you want to learn about gas turbine engines, check out AgentJayZ youtube channel
We have watched many of his videos, they are interesting and well made.
@@TechIngredients any updates?
True. But explaining these concepts while showing the P-V & T-s themodynamic relationships will make the concept clearer. Good job though.
This is by far the most technically competent and entertaining video on KZhead (this coming from an aerospace engineer). Keep this level of content up! Absolutely fantastic.
HE'S PATEY-GRADE!
I remember that one tuber who did all kinds of weird dangerous things then just like Steve Irwin ..... died.
I love how he cracks the biggest smile before lighting the jet hahah he comes across so serious in all the videos until it's time for pyrotechnics then he gets so excited and elated ! Great videos I love watching all of them
yeah I get that vibe of "turns off camera then BU HUU HAA HAA!!!" then back to "Normal"
My God where did this guy come from ...I went from watching fiberglass to speakers and now jet engines This man is smart
"THE MAN FROM THE UNIVERSITY..." (my guess he has Tenure)
If anyone is having trouble hearing the narration at the end, try headphones, the vocals are primarily from the right channel and the jet from the left.
it appears as if i have my headset on my head the wrong way...
Yes that sucked!! You go through most of the video on the edge of your seat with high interest/anticipation and everything goes to shit at the end... Not even a mention of the kind of thrust he was getting out of this... 50 lashes with a wet noodle!!! Pffft...
Really, you shouldn't have to wear headphones or use surround sound to get the best experience. In the future, bringing the background down a bit would be appreciated by me, at least.
@ I agree.
Thanks. You solved the problem for me. But I think that my ears are on the wrong sides of my head! 😁👍
For those that have not been following this guy, he has an amazing workshop. That and the high level of material he is conveying - from flat-panel speaker design & use, to audiophile (standard) speaker build-outs and non-phase-change air conditioning made me initially think he was doing this all at a university somewhere. Nope! This is his home! A previous video had him state that his wife came down about the noise, as did a neighbor that he would later have to go over to and apologize to (It was night time). This guy LOVES what he does, and is absolutely great at it. As I have told my contacts privately, if I had this guy as an instructor when in collage I would be in a different place now.
I checked his videos to see the air conditioner one and then realized that this is the "same guy from that interesting AC invention I saw a couple months ago". Very cool stuff, subscribed.
"I've wanted a turbojet engine since I was 4 years old". Please someone put that on a T Shirt!
I'll buy it
He looks like an unassuming uncle hanging out in his wood shop. And yet...
OK, hes clearly a space alien!
Ted Kazhinsky on the "Good Meds"
This guy is remarkably articulate.
I feel *SO* patriotic knowing that you're using "British Thermal Units" :) God bless you, you are a TRUE engineer.
I have never seen a more intriguing and magnetic personality on KZhead. Take all the suggestions you want but remember it's you and what you do that makes this channel so great.
These videos make me so jealous. There is a zero percent chance I will ever have the time, energy, or funds to enjoy scientific creativity firsthand like this. You have such a special thing here. Please, don't ever let it slip out of your grasp.
For anyone interested there are papers available on the internet written by Frank Whittle going through the full build process of his first engines, including the materials used for the turbine (Forth Rex 78 stainless, used in kitchen knives) and his issues with burners and so on. Frank patented (Edit:2nd patent)the jet 'afterburner/reheat (and turbofan engine) in 193? which he used for his supersonic engine design to go in the Miles aircraft.
I appreciate the hours and great effort you put in that project ! Thanks
For proof of concept, you should show the thrust of the electric fan running solo in the engine, and then with fuel with the fan running at the same wattage. This type of data will help propel your channel to the next level.
Drone Voyage ... YESSS!!! It would also be interesting to stack a couple of fans in counter-rotation in the duct increasing compression and velocity etc.. The end of this was a let down of an otherwise interesting concept.
I guess it's similar to the electric turbos car ricers use, just more powerful, as this should be high rice :)
Good idea. We'll show that with the multiple fan upgrade.
The JP Hobby 90mm edf makes around 9.5lbs of thrust at 6s/125A, if this is the 12s version, it's making 13.4lbs at 117A. They're going to need a much larger force gage if they're going to measure the output. It also doesn't sound like they're turning the edf up to 100% power when the force gage is maxxed out, so they're certainly getting added thrust from the afterburner.
I wanna see it scaled up to use a lawnmower engine to turn the fan maybe see some cooling the jet with the fuel to keep the integrity of the structure and set up the hydrocarbons for combustion by getting them excited to meet oxygen to make a hot carbon and water vapor babies
Extremely well done sir! The way you explained things in 15 minutes allowed me to mentally connect many dots I've had floating in my head over the years in regard to the principles of how a turbojet engine works. Very much looking forward to the next portions of this series! :-)
Cool project! You definately know how you keep me interested and wanting more :) I really enjoy the more elaborate explanation (compared to other tech youtubers), definately an example I want to follow!
Thanks for taking the time and effort to produce a video with clear explanations that help non-experts understand how jet engines work. Much appreciated!
Sure!
Great explanation! That's exactly what i missed in many books and videos, that the pressure inside the combustion chamber and turbine does not increase but decrease! But the reason, how there is generated the power for the whole axel is the much higher cross-section-area but with a slightly lower pressure.
Wow. You really know what you are talking about. And more importantly for someone making and sharing videos, you know how to explain things well. Most people cannot do the latter. I am looking forward to more on this from you. Thank you!
Now KZhead? Now?... The whole time I've been living without this video, and I've been wondering lost without my own jet engine..... Why now do you recommend this awesome video.
" Are you ready, let's get started!" You're a brave man to stand near that!
What an incredibly simple, yet good explanation of the turbine and its function.
Awesome engine. Thanks for the in-depth explanation.
Thank you very much for finally clearing up my confusion about the paradox of the standard jet engine. The combustion chamber increases the volume! (not the pressure) From that I see the equation of pressure diff times volume equals work, which means that the turbine produces far more work than used by the compressor, thus leaving excess for other work.
It's unfortunate how so many explanations fail to properly point this out. I suspect it is the "missing link" for a lot of people.
Thank you for your video, the way you are explaining the topic and the vocabulary you are using makes it very interesting to watch. There's lot of valuable informations.
This is a true tech channel. Many varied interests, concise explanations, suburb audiovisual. It feels like I'm in an engineering lecture watching this channel please look into getting a patreon account
Wow, great work in building and explaining!
Really great job explaining the operation of a jet engine in an easy to understand video. I am looking forward to the upcoming videos, especially liquid fuelling and more thrust! Big thumbs up. Thankyou!
jack ass
That was awesome, i cant wait for more.
Cool project, ive thrown around the idea of building one of these for quite a while, great to see it working!
This is truly is the best channel I've found in a very long while, it's very professional and well made educational content which is super interesting! Never stop!
the name of this type of jet is a "motor jet". there were a handful of modestly successful examples in the first half of the twentieth century with gasoline-engine front ends. ultimately the weight efficiency of driving the compressor with a turbine was well worth the substantial development difficulty
true, but now with the strong permanent magnets in brush-less DC motors, you can do some pretty wild things.
Joseph F it's the difference between low tech and high tech. you can't beat the efficiency of driving the compressor with a turbine, since you already have the hot gas supply. but if you can't afford the tech you use a motor, and the advantage of electric is that it's silent and nowadays off-the-shelf
>it's silent Not with an afterburner lol
Thank you for teaching, without dumbing down the material for the lowest common denominator. It’s rare to find on KZhead.
Just discovered this channel. These are really cool projects.
I own an engineering firm, and work with subcontracted firms for some projects. Some of the technologies I've invented, I spend weeks trying to get engineers up to speed. I would love to have your skill at breaking down fundamental principles and effects. You sir, are an extraordinary teacher. I love your channel.
Thank you! That means more coming from someone with your experience.
I'd be one of your first patrons, your videos are outstanding and always pique my curiosity even more! Thank you for the great content!
DYI? Do-Yourself-In projects? :-P
That's exactly what I was thinking, when he said it. 😉
so calmly and easily explained, subbed
looks absolutely fascinating, i'm glad yt recommended me this video. keep up the excellent work. greetings from sunny old England!
Man I love your shop, and your channel. Thank you for what you do!
That is great to hear!
This is a wonderful video. There's not many experimenters around anymore where it is worth the time to listen to their explanations, let alone quantify their results like you do. I would like to point out that on full size jet engines, the start up procedure is to first set the turbine rotating to a set speed with the starter (pneumatic or electric), trigger the igniter, then introduce fuel. This is done to decrease the risk of liquid fuel pooling and causing what is called a hot start, which can damage the combustion chamber. You sidestepped this by using propane, but it's helpful to know for future experimentation.
Excellent KZhead Channel. Metric data in addition to what you already provide would be brilliant! Thanks a lot!
You're welcome!
AWESOME! Please continue your work it is fascinating!
Awesome project!
Cant't wait to see future videos on this.
Always amazing content, and production value is great guys!
And I was waiting with a pen and a paper to write down the instructions ..but I am really very impressed the way you described what's actually going on inside .. thank sir will wait for your next video
Thanks! Did you see that we followed this video with an improved version of this jet?
Awesome project. That moment when u started up the fire. That shot tho. Watched other vids too. Amazing content
Fantastic! Really enjoy your videos and projects!
Neat. I've been thinking about making a net engine for electrical power generation, and every bit of information helps.
I loved your explanation of things. Really helpful for getting the gist of stuff. Thank you 😁👍
You're welcome!
Wow! Some gears started slowly turning in my head! But I can't say that I really understand how jet engines work. Could you please discuss it in a future video and breakdown pressure gradients, velocity, volume, and the force that in the end provides the thrust (maybe on a chalkboard/piece of paper). Maybe compare how the engine you have built works to those we find on commercial airplanes. to the Many other videos on KZhead are simplifications that are not very helpful and sometimes misleading. Hopefully there are more viewers out there that would be interested! As always, your content is truly incredible!
You are awesome dude. Probably start with a wider engine body... Larger input compressor fan... Neck it down significantly and you will have a much different performance... Yours looks like a ram jet at the end of the video. It's spectacular to watch. Starting off with more volume of air allows for greater compression potential. Potentially more efficient in an engine such as this... The hybrid idea is absolutely genius. Will have less internal drag without turbine blades.
What my life lack is a great mentor/friend like you!
Awesome ..... wish I had YOU for a teacher when I was growin' up!!!!
Most comfortable workshop I have ever seen.
Great video, professionally created and well focused.
I am looking to find a good toturial on how to build a rc jet engine and I saw your video. I have seen many of your video's and I love the way you teach people something. For me you are the best and it is easy to understand you. And I had smile on my face and happy until you changed into the pulse engine....:(
A nice warehouse heater:)
I was gonna say, a torpedo heater is like $99 at the harbor.
Awesome! So glad I found this channel :D
Excellent explanation. Thank-you for setting the record straight. Unfortunately, on an iPad, your audio is only about Q2 or Q3 when the jet power is increased.
Excellent information presented well.Thank you
*GOD* Bless you.. I was working for my project pulse jet engine and searching so many content in last 3 days, pulse jet is quite good but it gets really hot and not good for or ideal aircraft output using as a engine. so I was searching for another solution for engine that is cheap safe, easy to use and low cost fuel and maintenance so I found out that p300 small jet engine that use fuel and quiet expensive but durability and maintenance better than pulse engine jet. Now you have give me a solution electric ducted fan and I have search in the internet it has quite good lb. Very much safe and easy to use recyclable. *I* like the way you talk and Teach. Very Easy to understand (who is from 3rd world) Best *KZhead* CHANNEL I HAVE FOUND.
Thanks!
The fan is stalled. I would replace the axial fan with a mixed flow one with static vanes. With a single stage you can create much more pressure and the output is already in annular shape. Your videos are awesome!
Ah flash back days @test cell on TF-30 F404s - you need hi bypass to channel cool air beyond your compressors to AB section, very nice project!
We may in fact do that and eliminate the water, but we wanted to try that out first. Sometimes the best idea is to simply try it.
This was a very informative Lecture...
This channel is outstanding! Thank you 4 your work.
Sure!
Best accurate explanation of how a jet turbine engine works
Version 2.0 is finished and tested. We will be producing that video in a few days. Oh, and thanks!
That is some seriously knowledge dense video. Awesome work. Looking forward for next video
Thanks! Version 2.0 of this jet was completed and tested. Stay tuned.
Great video, learned some new things today
Very informative, thanks for sharing!
I have to say, while most of the video is sensible and fascinating; the use of BTU made me jump back in my seat!
Fair enough.
That's a brilliant example of a cool DIY project build.
Thanks!
Love your work! Very knowledgeable indeed
I'm an "ex-T56-7/15 turbo prop tech", had always been interested in the easier/simpler engines such as the Ram, Pulse, and motor-jet engine (which you made). Your motor-jet is probably the best on YT (and I've seen quite a few of them, some of them are Almost as good as yours and some are just crappy "jokes"). any how good job :-)
Brilliant would love to see it at sub assembly level of individual components so it's easier to visualise.
OK, when we install the second fan and the liquid fuel sprayers we'll lay out an "exploded" view of the sub components.
Tech Ingredients ... Great!! Looking forward to the second fan in counter-rotation.:) you may want to consider an increase in number of blades in second fan and higher output/RPM... I would also use direct drive out-runner type motors for this... Although that may require some modification to off the shelf items. But you seem quite resourceful... HA! :)
There's a lot of work has gone into this behind the scenes, you've earned my respect. May I ask how many people are working on this project and how long did it take?
Very informative. Thank you.
Finally someone who knows what he's doing. Where was this gem hidden all this time.
Thanks!
Excellent video, gives solid understanding of how turbine gas generators work.. Heat does the work as they produce high volume high velocity gas flow..essentially they use fuel to expand air to create acceleration of mass/volume, some of which is tapped to pump a lot more air into the system, so that net expanded volume & velocity are compounded..the afterburner adds more fuel and thereby MORE heat beyond the core of the engine, so that even more velocity is created..resulting in compounded thrust.. steps of acceleration as air is primarily then secondarily expanded.. oh such a beautiful thing😁 Imagine the steepness of a slide.. if you imagine the shallow gradient, you slide down slowly..if you add gradient so its steeper, the faster you slide down..so the greater the difference in gradient, the more kinetic energy is realized.. the idea is to create the highest pressure gradient through the system& extract the greatest gradient in BTU, efficiently turning BTU into EXPANSION rather than increased temperature .. Latest technologies allow higher temperatures & thereby utilization of the greater efficiency of the more extreme expansion .. more heat added to a heat engine, more work done.. so long as materials can handle it!😄
really cool! would like to see more of it!
I found your channel not too long ago from AvE. (The flat panel speakers using rigid panels and audio transducers.) This might seem silly, but yesterday I was thinking about supersonic shock waves for compressing air (ala the X-43.)
Damn. Best I've seen on KZhead, looking forward to the next.
Thanks! There are a few and we'll be uploading another in a couple of days.
Pragmatic speech blows me away every time. I didn't hear a thing you said, I was that impressed. I will have to watch later to see if you have left anything out, but I don't like my chances. Thanks, Thumbs up, subscribed.
Thanks!
Entertaining, educational and absolutely fun to watch! I will be following this series. I would sub but I have been for months. Thanks again!
Thank You for Your Video. Informative, Entertaining
I love the starting premise of the video "so, who doesn't want a jet engine" 🤣
Very informitive! Thank you!
Very cool project! Keep it up!
Excellent no non sense explaination. Thank you Sir.
Just found this channel and love it
Thanks and welcome!
great job ! some friends and I the idea to do this back ~ 1993 but in those days powerful EDF units didnt exist, so we had the idea to use a glowplug engine to power it. actually ducted fans at all were very unusual back then. As we found when we tried it a cheap glow motor simply doesnt spin fast enough for a small diameter fan to generate much thrust / pressure, which is where we gae up. DELIGHTED to see your success and really look forward to see the outcome when you add a second compressor stage (I guess you will need to either engineer some stator blades or easier/better find a fan that rotates the opposite direction ?. Would also be nice to have an anulus that can be resized on the fly (a big ask I know, thats a project in itself). If you have fuel flow sensors would be interesting to try to graph thrust vs fuel flow (vs internal pressure / fan power setting as a 3D surface). Just as DARPA for a grant and three research assistants ;-). GREAT JOB MANY THANKS !
I would have to rate this as my favourite youtube video site
Your neighbours must love you haha. Good video and an interesting design. Would make a great warehouse heater as some one else suggested. :)
Yes, this was a lot of fun. Thank you for uploading. Your fans, myself included, would like to know a little bit about your background if you don't mind sharing.
Very cool and excellent explanation of the process. Great video. Keep it up.
Thanks!
Might as well add some servos to those nozzle vanes and go for thrust vectoring too ;)
This is the best hoke made jet on KZhead