Cryogenic Engines | The complete physics

[@zil1832]

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

[@zil1832]

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.

[@zil1832]

Okay, I would then assume your online videos will fall into that fake 'online news, category. Keep living in the parallel reality buddy.

[@PintosVlog]

@@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)

[@zil1832]

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.

[@zil1832]

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! KZbin should really have some minimum bar, before they let anyone make content. They shouldnt allow loonies, honestly.

[@_Kirtap_]

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

[@muhammadnawazawan5526]

kzbin.info/www/bejne/r5qTZnmen5Wpp9U

[@jamesbizs]

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.

[@_Kirtap_]

@@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.

[@serenalopez8906]

Yeah, right!

[@terrencearturo7750]

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!

[@SALESENGLISH2020]

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.

[@leventesapi9882]

Indeed

[@10names55]

Lpppl

[@10names55]

ppPLL

[@10names55]

PP

[@10names55]

P

[@adikpanda6577]

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

[@AnilArya51]

He suffered a lot because of the scandal investigation

[@kishanpreston1533]

Plz dnt share fake information of nambi😂 nambi invented cowpiss n cowdung for cure disease 😂😂😂😂😂😂 after it unsuccessful

[@thor6579]

​@@kishanpreston1533how you can say this

[@nischalk1336]

​@@kishanpreston1533keep getting assburnt while isro reaches greater heights

[@pcmbyp.c.yadavsir1114]

​​@@kishanpreston1533don't spew venom stupid

[@berkdogu8150]

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.

[@asaidinesh5220]

Can u please tell me in which organisation u work ?

[@Shrouded_reaper]

Solution is to not use hydrogen lol....

[@sharathvasudev]

so we cant tell it's not rocket science to you after explaining something complex 😂

[@heywoodjablowme8120]

No doubt too busy as his other job is a brain 🧠 surgeon 😜 😷

[@ratratrat59]

horse hockey!

[@herlescraft]

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

[@mrpicky1868]

well boil off itsels is used as cooling process. the pressure build up , thats what you dont want in your rocket)

[@jesselopez0008]

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

[@death_parade]

@@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

[@BeKindToBirds]

@@death_parade Despite your anger he is essentially correct in his assertion.

[@death_parade]

@@BeKindToBirds I am not talking about the coating.

[@AnneONym]

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

[@nuhibrahim215]

by far, the best video ive found on youtube...easy to understand, straight to the point and no bs..

[@pravinpatel3472]

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. 👍

[@srinitaaigaura]

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

[@gunasekaran7290]

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

[@aadishshah4905]

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

[@GeovaniNogueira]

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.

[@aadishshah4905]

@@GeovaniNogueira Cool. Thanks for that information

[@starcatcherksp1517]

@@GeovaniNogueira Yep, his videos stunned me. Gonna go make a rocket company when I grow up, hopefully I have enough money for R&D.

[@deskmat9874]

@@starcatcherksp1517 me too

[@BeKindToBirds]

@@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.

[@VipulDassani]

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

[@krutrimkrishn]

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

[@UnnikrishnanR]

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).

[@rafakordaczek3275]

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.

[@muhammadnawazawan5526]

kzbin.info/www/bejne/r5qTZnmen5Wpp9U

[@muhammadnawazawan5526]

kzbin.info/www/bejne/r5qTZnmen5Wpp9U

[@iracingrookie3301]

What if I told you you've been brainwashed since you were a kid

[@NHAFFFF]

@sheldon fords literally who needed to hear your opinion

[@makantahi3731]

@sheldon fords if we waited for god to make covid vaccine, most of us would be dead

[@flippert0]

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!

[@dr4d1s]

Tim Dodd The Everyday Astronaut would like to have a word with you.

[@srishtichauhan7895]

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

[@kamranahoora7670]

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.

[@death_parade]

What? Since when did Iran get Cryogenic technology? Nah. They only have hypergolics and solid propulsion till now.

[@death_parade]

@NANDAGOPAL M Well, he also wrote _"We achieved very good results in this technology."_ Not my fault his English is not perfect.

[@Arup.Kkundu.01]

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

[@sudattsdeadchannel3495]

The owner of this channel and team is from Tamil Nadu

[@viswajithn4304]

They are

[@glennjacksonofficial3001]

@@sudattsdeadchannel3495 No, the owner is from Kerala

[@anshumavanarase2651]

Best video on KZbin about cryogenic engine

[@OrbitalEnterprise]

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

[@seasong7655]

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

[@richardmillhousenixon]

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

[@baburajc7353]

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

[@GodfreyMbilinyi-kx7qb]

From TANZANIA COUNTRY, nothing to say, just God made some people to benefits other always, great salute to those who utilize a lot of time for such creativity, great ❤❤to them.🎉

[@shashwat_dubey_]

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

[@blengi]

lol yeah a "Simple rocket" with only half a million components in the tank alone

[@FlorentHenry]

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

[@muhammedaskar5276]

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

[@manfromdownunder8407]

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

[@BSourabhPranBorah]

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.

[@EncoreFrenchLessons]

This is wonderfully explained, if you had a whole course like this on rocket science, I’d be your first client!

[@Sat_world]

Perfect. Really amazing art 💜💜

[@muhammadnawazawan5526]

kzbin.info/www/bejne/r5qTZnmen5Wpp9U

[@zerin.]

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

[@vatsallad9333]

Love from india ❤️

[@muhammadnawazawan5526]

kzbin.info/www/bejne/r5qTZnmen5Wpp9U

[@kunjukunjunil1481]

Lol He is from India

[@taranjeetsingh4136]

@@kunjukunjunil1481 you lol

[@kunjukunjunil1481]

@@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.

[@sathyamanikantabk4483]

Nambi Narayana the man behind Cryogenic engines for ISRO

[@sagnikdebsarkar169]

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.

[@srinitaaigaura]

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.

[@xitheris1758]

Good introduction. Liquid hydrogen does indeed achieve the highest specific impulse, but it's by no means the "best" fuel for every situation. Sometimes other factors are more important. I've made a basic summary of common rocket fuels below. Methane is becoming more and more popular as a compromise. Liquid Hydrogen • high efficiency • no soot whatsoever • very low density • low thrust • very low temperatures • leaks very easily Kerosene (RP-1) • high density • high thrust • normal temperatures • doesn't leak easily • low efficiency • lots of soot issues Liquid Methane: • moderate density • high thrust • low temperatures • doesn't leak easily • moderate efficiency • minimal soot issues

[@gamestv4875]

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

[@af4984]

It will cost more than the rocket itself

[@nstvm82]

Finally I have discovered a professional channel worth subscribing. 👏

[@prolska]

Go to @Scott Manley or EverydayAstronaut for more better info than this over-simplified video

[@prolska]

Also its not proffessional

[@animationsxplaned8835]

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

[@tahabasrawala3571]

Nambi sir is a legend Without him cryogenic engine will not be there in India.

[@Priyankayadav-cb3wm]

Love you from India ❣️

[@muhammadnawazawan5526]

kzbin.info/www/bejne/r5qTZnmen5Wpp9U

[@LWRC]

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

[@abdurrahmanhashmi1081]

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.

[@pingnaganp]

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

[@starcatcherksp1517]

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.)

[@srinitaaigaura]

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.

[@starcatcherksp1517]

@@srinitaaigaura I actually thought the most important thing in space is dead weight

[@VoldraLightningfrost]

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

[@pranngowda80]

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

[@Parapresdokian]

Lol

[@exynosnemea2937]

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

[@prabinadhikari1514]

Great animation ❤️❤️❤️

[@muhammadnawazawan5526]

kzbin.info/www/bejne/r5qTZnmen5Wpp9U

[@Eswarr]

Rockery Film got me here . Respect to ISRO and specially Nambi sir for this work

[@RajendraSingh-py8pm]

Pride to be an Indian🇮🇳

[@Gryffins90]

The pump is usually in multiple stages. The first stage is the inducer and it prevents cavitation to build up in the pump because of the high rotation speed. The next stage is the impeller which does most of the pressure rise in the turbopump.

[@eyeofthepyramid2596]

I thought fuel would become at gaseous phase when it comes to turbo Pump. Also do impellers are used in turbopumps or only in centrifugal pumps.

[@ownershen97]

Amazing video as always. Great work!

[@muhammadnawazawan5526]

kzbin.info/www/bejne/r5qTZnmen5Wpp9U

[@TTURocketDoc]

If you liked this, search "it does take a rocket scientist, Stan Love explains why going to Mars is Hard" - skip to 7:30 for talk on the shuttle RS-25. The entire presentation is excellent 👌

[@ramadhanisme7]

This is so underrated

[@migueltorres7403]

It was so easy to follow the video; this approach to building engines seems very simple, but wow, there have been a lot of failures to get here as a civilization.

[@feelingzhakkaas]

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

[@SabinCivil]

Thanks Prakash for your encouraging words and thank you for supporting us!

[@gaminghardx]

very useful pause 3:16

[@ravenclawgamer6367]

Aluminium Lithium alloy Space X - Hold our Starship

[@nomadexplorer6682]

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. 👍

[@noell.capangpangan7645]

Thanks for sharing this engineering details

[@Dethroned-king]

Tipu sultan,Apj Abdul kalam,Vickram saravai,Satish Dawan are some of the legends who helped india to gain this position in modern day. I hope some scientist like them will born in Bangladesh soon.(inshahallah)

[@rgashhhjhhhhh]

Nambi narayan too

[@dosomething3]

Wow 😳. Really great animation.

[@muhammadnawazawan5526]

kzbin.info/www/bejne/r5qTZnmen5Wpp9U

[@rahulwaghela7701]

Huge salute for Indian scientists who put too much affort to make this engin.❤️

[@mahanteshshettar2318]

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

[@muhammadnawazawan5526]

kzbin.info/www/bejne/r5qTZnmen5Wpp9U

[@prathimabhat3999]

It was because of nambi sir we got this technology, but the way indian govt treated him was horrible finally he won the case at old age, else we would have pioneered space technology

[@Shikhar.kgpian.iitkgp]

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

[@grandunification6226]

yeah! "learn engineering" not😣 "LESICS"

[@bucky13]

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

[@prolska]

But its so oversimplified that it has so many typos and mistakes

[@Aman3252]

Watch it couple of times... Show concept and problem solving. Very good...

[@dylandreisbach1986]

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

[@muhammadnawazawan5526]

kzbin.info/www/bejne/r5qTZnmen5Wpp9U

[@makantahi3731]

in race on moon all american liquid rocket engines were that turbo pump exhaust goes in atmosphere , many years after in weapon inspection in some warehouse in the middle of nowhere in russia, americans found rocket engines that was explained in this video and they could not believe that russians managed to make it, so thank you for that you made

[@ronron7763]

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

[@carstenkrueger3382]

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

[@lilpenguin092]

@2:38 so cool ❄!

[@adinathpalake]

Really good technique and also good explanation ✌️✌️

[@ИванСнежков-з9й]

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.

[@scientium8770]

Man, thanks a lot! I was confused in that impeller part... Your comment helped clear my doubt.

[@andersemanuel]

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.

[@AbdulHafeez-cq6oo]

Great description and engineering knowledge

[@arpitkumarsingh0809]

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

[@monjidjamjoum2074]

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

[@dharmawangsa9592]

Whatever the problem in engineering, it will always related to physics, that was so beautiful

[@newtypealpha]

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?

[@xj9779]

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 KZbin.

[@newtypealpha]

@@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?

[@abdurrahmanhashmi1081]

I think they pressurize the hydrogen, so they would fit quite a bit more than 70 tons

[@newtypealpha]

@@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.

[@abdurrahmanhashmi1081]

@@newtypealpha oh my bad I thought u were using the STAP density of hydrogen

[@mrengtop]

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

[@prolska]

With many mistakes and typo of course

[@FreshBeatles]

3:38 hyDorGen

[@imshashank800]

America didn't allowed Russia to give cryogenic engine to India for a mission but then India developed its own and even launched many missions. Today India has the best value for money rockets like pslv & gslv India did mars mission in 10 time less money than usa.

[@shravan155]

Yess you are right It took 17 yrs of hard work to develop that technology 🇮🇳🇮🇳🇮🇳

[@jonsnow3960]

Let's make a rocket engine guys..

[@goldencharlie8434]

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

[@horrorhotel1999]

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

[@kundanborakb]

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.

[@horrorhotel1999]

@@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.

[@doodleboi7034]

Patent sucks, especially in rocketry

[@death_parade]

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.

[@MikeSmith-vb8ul]

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?")

[@Raja-kr8ul]

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

[@TeddyKrimsony]

The Electron rocket does use electric pumps though

[@mishtii__vlogs93]

Nambi sir we all indians are proud of you. Jai Hind 👏🇮🇳🇮🇳🇮🇳🇮🇳...

[@Abhishek-cf9vn]

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

[@justanotherguy9034]

Could you be little polite to add “please” since you are consuming free content.

[@varunprakash6207]

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 👏👏👏👏

[@CalvinMaclure]

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

[@omniyambot9876]

We don't need your approval

[@CalvinMaclure]

@@omniyambot9876 I still approve.

[@omniyambot9876]

@@CalvinMaclure i love you

[@CalvinMaclure]

@@omniyambot9876 👈😘

[@leventesapi9882]

DafaQ?

[@rahulrajput-fu2rx]

Asowem explation that why I love to watch learn engineering channel.

[@monjidjamjoum2074]

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

[@fishbotsid9771]

H2O... as simple as that.

[@soubhagya8808]

India was about to get the technology from USSR back in late 1980s. But we could never get it from them thanks to our so called allies uSA and France. They eventually succeeded and made a delay of 15-years in India's space ambitions. But no one could stop us from making it indigenously.

[@geryz7549]

9:40 Correct me if I'm wrong but aren't the RS-25's of the space shuttle ignited at launch and not in-flight?

[@merlin9657]

you are correct! But they obviously get massive help from the solid rocket boosters, so that the space shuttle has enough thrust as a "first stage", to get to sufficient height before jettisoning them

[@bobthompson4319]

The injector plate also mixes the oxygen and lh2. Also another reason to pump the oxygen and lh2 to a high pressure is so that the pressure inside of the combustion chamber doesn't become higher than the pressure of the fuel ox and stop the flow

[@eyeofthepyramid2596]

So it's a forced flow but the pressure in the fuel tank will decrease and the turbo pump will speed up the ignition process. So how does it maintains the pressure below in the combustion chamber ?

[@MellowDrinker]

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