Cryogenic Engines | The complete physics
2024 ж. 9 Мам.
2 359 257 Рет қаралды
Let's understand the detailed working of cryogenic engines in a logical manner.
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Yeah, I just wanna salute Nambi Sir. Any nation which would find people like you, would be proud of you.
He was literally the director of the cryogenic project lab in ISRO. Unless you're living in a weird parallel reality, you wouldnt dispute that fact.
Okay, I would then assume your online videos will fall into that fake 'online news, category. Keep living in the parallel reality buddy.
@@zil1832 -Do you know in the performance assessment report of Nambi was given “below average” for the two consecutive years prior to his arrest. •He take VRS even two weeks before his arrest. •His phone bill was three times of his salary (if you need i will provide it) that too in another man’s name. •He never stand in any trial so no court in india acquitted him-court only accepted the report of CBI. (Im not living in any parallel world-sometimes reality is worse than you think)
You know a youtube comment would change any fact that has been thoroughly investigated and Supreme court ruled that his reputation was slandered. He was framed. He didnt do anything wrong. Unless you're some looney (or presumably have some kind of stake in this, which is more probable), you wouldnt be making such claims. The problem of youtube is they let anyone post anything without fact checking. Plus you're making youtube videos. I only feel pity for the viewers.
Now then you have deleted your previous 2 comments, first you claimed that he was not associated with the cryogenic project, (fact: he was director of the program) and then when I refuted you said it was "whatsapp/online" news. Highly unfortunate, that you're creating videos! KZhead should really have some minimum bar, before they let anyone make content. They shouldnt allow loonies, honestly.
The quality of these animations literally stuck me to the screen for the whole 10 minutes. Exceptional work! 😦 Hats off! 🙇♂️
kzhead.info/sun/rM1pZaqgoWKspKs/bejne.html
Literally huh? So was there glue involved? Did the screen reach a hand out and pull you to the screen? This is a science channel. Come on man lol.
@@jamesbizs Oh really? Is it a science channel? I didn't noticed....I thought it's a scientific cartoons channel. Just to clarify for people like you who do not understand: My comment is a pure compliment to the enormous work behind such a video. Stop. Btw I'm an Energy Engineer.
Yeah, right!
Sorry to be offtopic but does anybody know of a way to get back into an instagram account?? I stupidly lost the login password. I would appreciate any help you can offer me!
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.
Indeed
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This wouldn't have been possible for India without Nambi sir. A huge salute to him❤️❤️🙏🙏
He suffered a lot because of the scandal investigation
Plz dnt share fake information of nambi😂 nambi invented cowpiss n cowdung for cure disease 😂😂😂😂😂😂 after it unsuccessful
@@kishanpreston1533how you can say this
@@kishanpreston1533keep getting assburnt while isro reaches greater heights
@@kishanpreston1533don't spew venom stupid
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.
Can u please tell me in which organisation u work ?
Solution is to not use hydrogen lol....
so we cant tell it's not rocket science to you after explaining something complex 😂
No doubt too busy as his other job is a brain 🧠 surgeon 😜 😷
horse hockey!
never seen something that impressive and such well animated for a while
One of the best videos I've ever seen, not only on this channel but overall on KZhead.
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!
Tim Dodd The Everyday Astronaut would like to have a word with you.
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).
Thank you Nambi Narayanan from ISRO pushing hard to develop the Liquid and Cryogenic engine
I believe the insulation coating of the tank is also to keep the fuel at low temperature and prevent boil off
well boil off itsels is used as cooling process. the pressure build up , thats what you dont want in your rocket)
That coating is bcuz hydrogen molecules are so small that they escape even through tiny holes due to imperfections in tanks metal fabrication, so the coating becomes a secondary barrier to prevent boil off
@@jesselopez0008 Please don't display how dumb you are with this nonsense. Defects such as dislocations in metal microstructure actually arrest hydrogen diffusion. So "imperfections in metal fabrication" are not the reason. Read some stuff before you comment and make a fool out of yourself. Just like with you other comment about Indian cryogenic engines being "mere proof of concept", you have no idea WTF you are talking about. Here, read this to understand hydrogen diffusion: www.tandfonline(DOT)com/doi/full/10.1080/02670836.2017.1310417
@@death_parade Despite your anger he is essentially correct in his assertion.
@@BeKindToBirds I am not talking about the coating.
Your videos are very well made with simple explanations. Keep making more videos, and also a playlist for concept explanation which is age relevant.
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!!
Such a simple & awesome explanation, very professionally conceived, kudos to the team !!
Finally I know small part of what is "Rocket Science"
recommend you watch "Everyday Astronaut" channel, especially the video entitled "Is SpaceX's Raptor engine the king of rocket engines?" because this video focused wildly variety of the rocket engines world.
@@GeovaniNogueira Cool. Thanks for that information
@@GeovaniNogueira Yep, his videos stunned me. Gonna go make a rocket company when I grow up, hopefully I have enough money for R&D.
@@starcatcherksp1517 me too
@@GeovaniNogueira Everyday astronaut is decent but has a lot of misleading information and his own personal bias present. It is not a good replacement for dedicated study and there are better sources of introductory information.
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.
The owner of this channel and team is from Tamil Nadu
They are
@@sudattsdeadchannel3495 No, the owner is from Kerala
Amazing!! What a technical knowledge! I am deeply impressed.
Good amount of research, beautiful presentation, astonishing graphics and nice oration to help to understand every aspect.
I need an hour video like this one. This was absolutely awesome.
It will cost more than the rocket itself
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 think all engineers must know the big picture and their role in it. Only then they can see the magnitude of what they are achieving
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?
Wow - what a great explanation of cryogenic engine technology that is used in the Space Shuttle Main Engines (SSME)!!!
Perfect. Really amazing art 💜💜
kzhead.info/sun/rM1pZaqgoWKspKs/bejne.html
Amazing video as always. Great work!
kzhead.info/sun/rM1pZaqgoWKspKs/bejne.html
Thx for this great animation! Very helpful.
Wow, I really love your videos! Keep up the great work!
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.
kzhead.info/sun/rM1pZaqgoWKspKs/bejne.html
kzhead.info/sun/rM1pZaqgoWKspKs/bejne.html
What if I told you you've been brainwashed since you were a kid
@sheldon fords literally who needed to hear your opinion
@sheldon fords if we waited for god to make covid vaccine, most of us would be dead
KZhead must be feeling lucky for having a channel like you: @Learn Engineering
Outstanding explanation and animation. Very impressive!
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. 👍
outstanding explanation in simple way with interesting animation. God bless you.
Thanks Prakash for your encouraging words and thank you for supporting us!
4:40 electric pumps are used in Rocket Lab's Rutherford engine
That's because at that small a scale electric turbopumps are the most efficient way of powering the engine in the terms of both weight and performance, not to mention complexity. Electrically pumped engines can throttle significantly deeper than gas generator engines, as well as be capable of running the tanks completely dry, as would be nearly impossible in gas generator engines as well as extremely damaging to the engine
One of my favorite channels on KZhead. 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.
Very nice and informative video, no one explain cryogenic engine operations like this thank you so much for adding knowledge to us..👍👍👍
Love from india ❤️
kzhead.info/sun/rM1pZaqgoWKspKs/bejne.html
Lol He is from India
@@kunjukunjunil1481 you lol
@@taranjeetsingh4136 What ? was simply pointing out a fact that the channel is owned by an Indian ,so there is no point in saying "love from India" as if talking to someone from US or Europe as the original comment implies.
i am not even an engineer, or an engineering student, yet i love these videos!
Genius ! awesome work !
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.
0:19 ..."A simple rocket propells..." Shows the most complex rocket ever 😂 Btw brilliant animation and explanation.👍🏻
lol yeah a "Simple rocket" with only half a million components in the tank alone
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.
I really appreciate your work and explanation 😊 thank you for learning ❤️😊
Thanks for sharing this engineering details
Great animation ❤️❤️❤️
kzhead.info/sun/rM1pZaqgoWKspKs/bejne.html
thank u. it was so clear to understand . thank u nambi narayanan sir & adbul kalam sir . thank u team ISRO
I like every videos this channel produces. Been subscriber for 3 years
Great description and engineering knowledge
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.
That was terrific well done!
Excellent video sir. Thanks. God bless you and your team.
Love you from India ❣️
kzhead.info/sun/rM1pZaqgoWKspKs/bejne.html
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.
Man, thanks a lot! I was confused in that impeller part... Your comment helped clear my doubt.
Great video and topic. Thank you💓
I love your channel. Thanks for the information you have taught me.
Wow 😳. Really great animation.
kzhead.info/sun/rM1pZaqgoWKspKs/bejne.html
Finally most awaited topic....of mine... Please do a video on : Human rated capsules....
kzhead.info/sun/rM1pZaqgoWKspKs/bejne.html
I really appreciate your work. Good job.
Excelente job!!! Great video!
Fabulous man...! Love from NIE men's hostel ❤️
Lol
Feeling proud to see Indian Flag 🇮🇳🇮🇳🇮🇳 Remembering Nambi Narayanan Sir 👍👍👍
Fantastic explanation as well as animation. You really have eased the "Rocket Science" 😂😎
Best video on KZhead about cryogenic engine
This is so underrated
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
It's a great explaination, indeed
Excellent video 👍 Thank you 💜
These videos are so good! It's as if a college level engineering textbook has come to life.
But its so oversimplified that it has so many typos and mistakes
3:38 hyDorGen
Wow, this explanation is simply amazing..
This was great! Please more of this topic =D
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.)
That high ISP becomes more important in space. Delta IV works better and better the further you need to send a spacecraft. New Horizons got the highest escape velocity of any spacecraft from earth because of this.
@@srinitaaigaura I actually thought the most important thing in space is dead weight
@2:38 so cool ❄!
Most awaited video!!! Perfectly explained... Keep it Up Team :)
kzhead.info/sun/drmdj5plbJShaZs/bejne.html
Watch it couple of times... Show concept and problem solving. Very good...
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
If this channel wasn't present on youtube then how would we able increase our interest in engineering
yeah! "learn engineering" not😣 "LESICS"
The content of the video is really good.. well done
Thank you so much for this informative video.
I'm going to start calling spark plugs "compact pyrotechnic igniters."
kzhead.info/sun/rM1pZaqgoWKspKs/bejne.html
all school and uni lecctures need to be based on such animation.
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.
Amazing video, fantastic animation quality
Can u please explain the working of monopropellant and bipropellant engines also
Could you be little polite to add “please” since you are consuming free content.
what the ratio between liquid hydrogen and liquid oxygen go or suppose to go to the injector plate to accomplished successful lunching ?
H2O... as simple as that.
Great animation with highly researched content😇😇
Amazing detailed explanation, also sir which software do u use to make the animation
Pride to be an Indian🇮🇳
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?
Hydrazine is very poisones and extremly corrosive, when i remember correct there was an accident in a nuclear Missile Silo with a hydrazine leak that leads to an explosion. See Planly Difficults Video here on KZhead.
@@xj9779 Sure, which is why they only use it for upper stages and ships in orbit like the Dragon Crew or the Starliner. But how do we justify "hydrogen is the best rocket fuel" when all the rockets hat use hydrogen have to be ten times as large as the rockets that use kerosine to get the same performance?
I think they pressurize the hydrogen, so they would fit quite a bit more than 70 tons
@@abdurrahmanhashmi1081 Even under pressure, liquid hydrogen only has a density of 70kg per cubic meter. They would have to get it to at least 8 times that density -- 500kg per cubic meter -- to be able to use the same size tanks. That's basically why the space shuttle and the SLS have to use these enormous solid rocket boosters. They don't carry enough fuel to get into space otherwise. A falcon 9 with two SRBs would basically have the same lifting capacity as a space shuttle.
@@newtypealpha oh my bad I thought u were using the STAP density of hydrogen
Thank you Sir for this valuable information.
Very well done tutorial offered to many youngster, with curiosity to learn about historical rocket engines in human history.
The Electron rocket does use electric pumps though
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.
America spent a lot of time supporting Pakistan and making every place it stepped in worse than what it was before and putting their own citizens in a conscience crisis. India has helped the USA far more in the form of so many brilliant minds.
Magnificent, informative video 👍.. Even an ordinary maintenance guy like me can understand it.... 🙄... After a few takes 😉.... 👍👍👍👍👍👍
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.
What? Since when did Iran get Cryogenic technology? Nah. They only have hypergolics and solid propulsion till now.
@NANDAGOPAL M Well, he also wrote _"We achieved very good results in this technology."_ Not my fault his English is not perfect.
Aluminium Lithium alloy Space X - Hold our Starship
As an actual mechanical engineer, I approve of this message.
We don't need your approval
@@omniyambot9876 I still approve.
@@CalvinMaclure i love you
@@omniyambot9876 👈😘
DafaQ?
Bravo! I will probably never need this information, but you never know.
You have made complicated engineering easy to understand by explain it step by step with amazing animation... Thank you
With many mistakes and typo of course
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
Patent and secrecy makes fair competition and others countries can get the same technology with different approaches and it is good for innovation. However I also think there have to be a valid patent expiry date that makes the technology to publicly available.
@@kundanborakb Generally, a patent expires after 20 years. That seems like a fair period to me. They totally make sense to me on a private market. The idea behind a patent is a trade: The state grants you the monopoly on a certain technology for a limited time, but in exchange you make your innovation publicly availabe. However, this video makes it sound very much like there is a lot of secrecy going on in the domain of these propulsion systems. In a global society, I don't see the merit in that when we are talking about technologies and projects that are too big to be developed by private companies anyways. Look at CERN, VIRGO and possibly ITER, giant projects where multiple countries pooled their ressources and knowledge. Those projects have achieved so much more than any country ever could have on their own.
Patent sucks, especially in rocketry
Patent laws and trade secrets aren't the half of it. Once you learn what CIA tried to do to the Indian scientists who were working on developing this purely civilian technology for India.
Patent laws don't apply to government -- they can simply "eminent domain" away whatever patents they want to. Likewise presumably a powerful-enough lobby could also get the government to "de-patent" it for public domain if they wanted to (especially stuff like this that can be "useful" to the government itself, not just for some random little company to which the government would say, "Why should we listen to you?")