Yeah, I just wanna salute Nambi Sir. Any nation which would find people like you, would be proud of you.

The quality of these animations literally stuck me to the screen for the whole 10 minutes. Exceptional work! 😦 Hats off! 🙇‍♂️

One who understands such a complex system very well can explain it simply, beautifully, and precisely. Thank you for making learning engineering interesting for the students. The clear animation makes it better than my lectures.

Finally I know small part of what is "Rocket Science"

This wouldn't have been possible for India without Nambi sir. A huge salute to him❤️❤️🙏🙏

never seen something that impressive and such well animated for a while

As a rocket scientist, I must say it is explained and animated very well. Good job! For the material of tanks, actually composites are good candidates for embrittlement issues and also they are currently used due to their weight advantages.

I believe the insulation coating of the tank is also to keep the fuel at low temperature and prevent boil off

One of the best videos I've ever seen, not only on this channel but overall on UKposts.

Your videos are very well made with simple explanations. Keep making more videos, and also a playlist for concept explanation which is age relevant.

Thank you Nambi Narayanan from ISRO pushing hard to develop the Liquid and Cryogenic engine

This is by far the most thorough and at the same time most understandable explanation of rocket engine principles out there at YT. Thanks for creating and uploading this very informative video!

Oh this is just beautiful!! Thanks for sharing this. I was reading the new book on SpaceX and came up on the term turbopumps and went searching. Boy am I glad I found your video within a few minutes (because most other explainers don't even come close).

Amazing explanation, simple yet packed with information. Never understood specific impulse when real engineering explained it, but totally understood it here

Another great animation!! Who would have thought we were both working on very similar animations at the same time!!

Sir you are providing such educational things at no cost hats off

Please make more animations on Automotives. I love all these. Thanks a lot for these great lessons. Lots of love from INDIA.

Thanks , I worked for cryogenic engine manufacturing unit . We made many of its parts . But we don't know how actually it works. Happy to see full function of cryo engine . Thanks again. 👍

I need an hour video like this one. This was absolutely awesome.

Perfect. Really amazing art 💜💜

I've been thinking a lot about possible improvements, which might lead to better rocket technology and better specific impulse with using the same fuel. This video really puts all of that into fine package.

Love from india ❤️

Such a simple & awesome explanation, very professionally conceived, kudos to the team !!

4:40 electric pumps are used in Rocket Lab's Rutherford engine

0:19 ..."A simple rocket propells..." Shows the most complex rocket ever 😂 Btw brilliant animation and explanation.👍🏻

outstanding explanation in simple way with interesting animation. God bless you.

Thank you so much for all your videos. They've certainly broadened my knowledge of engr ever since I've been watching. Please can you make a video on the working principle of maglev trains too?

UKposts must be feeling lucky for having a channel like you: @Learn Engineering

Amazing video as always. Great work!

i am not even an engineer, or an engineering student, yet i love these videos!

Wow - what a great explanation of cryogenic engine technology that is used in the Space Shuttle Main Engines (SSME)!!!

Good amount of research, beautiful presentation, astonishing graphics and nice oration to help to understand every aspect.

Feeling proud to see Indian Flag 🇮🇳🇮🇳🇮🇳 Remembering Nambi Narayanan Sir 👍👍👍

and also as far as I know the the the cross sectional area of the divergent section of the de-laval nozzle is so adjusted that the shock wave occurs only at outside the exit plane of the nozzle. Occurance of shock outside the nozzle make the flow supersonic or hypersonic through the complete section of the nozzle.

Amazing!! What a technical knowledge! I am deeply impressed.

Fantastic explanation as well as animation. You really have eased the "Rocket Science" 😂😎

Love you from India ❣️

Great animation ❤️❤️❤️

One of my favorite channels on UKposts. Could you please do a video on compressed air drying techniques, in particular HEAT OF COMPRESSION DESICCANT DRYERS. I’ve worked in oil gas, pulp and paper, and defense, and have been around these in all 3 industries but only recently started having problems with them.

Outstanding explanation and animation. Very impressive!

I'm going to start calling spark plugs "compact pyrotechnic igniters."

This is so underrated

Thx for this great animation! Very helpful.

I really like the animations and the knowledge that is transferred. This is the way to understand tech. Beautiful work. If I could make one solution it would be to keep the language technical and correct. Trying to adjust the language to kids level, feels like old people trying to be cool with young people.

The foam on the ET also functions as an insulator to prevent the cryogenic propellants from overheating and prevent ice buildup on the outside surface on the ET.

Fabulous man...! Love from NIE men's hostel ❤️

Very nice and informative video, no one explain cryogenic engine operations like this thank you so much for adding knowledge to us..👍👍👍

Best video on UKposts about cryogenic engine

Wow 😳. Really great animation.

Fact: Fuels with less maximum theoretical efficency tend to have larger density, so that's why you can see a Falcon 9 (22,000 kg to LEO) , using subcooled RP - 1 as fuel, would be much smaller than, say, a Delta IV Heavy, having more than double the size of fuel tanks (using LH2) while can only carries a little bit more payload (23,000 kg). (Note: To those of you who said that the Block 5 Falcon 9 actually only have 13,000 kg as LEO payload, remember that this rocket is partially reusable, and the first stage had to perform the slowing burn upon atmospheric reentry, plus a suicide burn to have a soft landing, so yeah.)

I really appreciate your work and explanation 😊 thank you for learning ❤️😊

Wow, I really love your videos! Keep up the great work!

3:38 hyDorGen

Another question ....how much in term of unit or lire have to reach the (injector plate) at combustion champers per second to successfully launch this rocket

Wonderfully explained in this short video with excellent graphics. Very interesting and inspiring for a teenager to take up rocket engine study for future development. 👍

Genius ! awesome work !

The explanations has been really great. I think that with small improvements, they could have been even better. For example, showing how fuels are mixed by the injector plate and burnt should be before the explanations of the pumps. This way the trick of cooling the combustion chamber with liquid H2 comes before using it at the turbo pump. It would have been also better to show possible electric motors in operation pumping fuel, before replacing them with turbine. Aka, show the motor moving the impaller, then keep the impaller in place and replace the motor with turbine. This way, even visually, there could be no doubt which part is driving the motion. Also, You said that you are giving example with the H2, but it would be nice to have a label on the screen. Especially when you need need two of them for the gas generator. Once again. Your videos are probably the best explanations I've seen so far.

Thanks for sharing this engineering details

Thank you for this wonderful video. Also must say that IRAN is started to make cryogenic engine. We achieved very good results in this technology. God bless you my dear friend.

thank u. it was so clear to understand . thank u nambi narayanan sir & adbul kalam sir . thank u team ISRO

Great description and engineering knowledge

Feeling proud to see indian flag 🇮🇳🇮🇳in with the other

Wow, this explanation is simply amazing..

Great video and topic. Thank you💓

These videos are so good! It's as if a college level engineering textbook has come to life.

If this channel wasn't present on youtube then how would we able increase our interest in engineering

That was terrific well done!

Nicely explained.On a side note, I was just looking at the Bloodhound SSC jet car, it uses a SC 550HP Jag motor to pump the fuel,at 40 ltrs per second to the jet engine, which lead me here.

You missed 2 important things: - propellant density is as important as specific impulse, making hydrogen not so obvious (+ other important criterion) - long duration cryogenic storage comes with its fair share of difficulties

Finally most awaited topic....of mine... Please do a video on : Human rated capsules....

Excellent video sir. Thanks. God bless you and your team.

You have made complicated engineering easy to understand by explain it step by step with amazing animation... Thank you

Can u please explain the working of monopropellant and bipropellant engines also

@2:38 so cool ❄!

I really appreciate your work. Good job.

I like every videos this channel produces. Been subscriber for 3 years

all school and uni lecctures need to be based on such animation.

what the ratio between liquid hydrogen and liquid oxygen go or suppose to go to the injector plate to accomplished successful lunching ?

I love your channel. Thanks for the information you have taught me.

Amazing detailed explanation, also sir which software do u use to make the animation

So, when I do the math on this, I find that a propellant tank with a volume of, say, 100,000 cubic meters would be able to store about 70 tons of liquid hydrogen. That exact same propellant tank would be able to store about 800 tons RP-1 and about 1100 tons of hydrazine. So it's almost a tenfold decrease in propellant mass for only a 25% increase in specific impulse. That doesn't seem ideal to me. What am I missing? Even when you plug in the rocket equation in the other direction, you find out that a rocket powered by LH2/LOX needs a propellant tank ten time as large to get the same total delta-V as one powered by kerosine or even methane. And the larger tanks just means a much heavier rocket, which is exactly what we DON'T want, isn't it?

Pride to be an Indian🇮🇳

This was great! Please more of this topic =D

All of the solutions the engineers came up with are so clever!

Just to share a story with you guys, India never intended to make a cryogenic engine as it was supposed to get the technology of those engines from Russia, But when India was sanctioned by the US after it's first nuclear test, it started the project for cryogenic engine as America didn't allow the transfer of this technology to India.

It saddens me to realize that we are held back on the final frontier by having to innovate the same technology multiple times over due to patent laws and trade secrets

Excelente job!!! Great video!

Thank you Sir for this valuable information.

The Electron rocket does use electric pumps though

As an actual mechanical engineer, I approve of this message.

Cryogenic engine Explanation with details animation shows quality High research to show The cryogenic engine work Explanation with wonderful Animation feels like learning through Animation 👌👌 voice over 🎙️ Vera level 😍😍😍😍😍 Hats off To Team 👏👏👏👏

Bravo! I will probably never need this information, but you never know.

Aluminium Lithium alloy Space X - Hold our Starship

"Only a few countries have actually been able to develop this" Yeah and those 6 countries literally make up most of the worlds population 🤣

Most awaited video!!! Perfectly explained... Keep it Up Team :)

What fascinated me about the space shuttle turbo pumps, remove such a high volume of fuel, and the ability of the cryogenic system to keep the Bell cool and other components it's a masterpiece of engineering

0:11 The country is USA, America is a continent...

I disagree with calling hydrogen's temperature when stored as a liquid under extreme pressure -253 C. Yes if the pressure is released it is that temperature but while under pressure in an uninsulated tank, it's temperature is whatever the outdoor temperature may be. The industry uses this terminology and it is confusing to the general public.

It's a great explaination, indeed

Unfortunately, this material is just too simplified, to an extent of not being true in few places. For example - cryogenic engines are not used mostly in upper, but rather in all stages, including booster (first) stages. Also, propellant selection is not only about getting most ISP, as it has inversely proportional relationship with thrust. There are far better starter materials out there, for example see Everyday Astronaut on YT.