Stirling Engine | An ingenious invention

The Scottish engineer Robert Stirling invented an amazing engine called Stirling engine long back. The specialty of this machine is that it works based on constant temperature difference. Let's learn about the details of this invention in this video.
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[@dondominic7404]

That transition to 3D animation at the beginning was awesome!

[@sharvapotdar3257]

Exactly what I thought.

[@nnamerz]

I was wondering the same thing, but other comments below seem to state that the environmental concerns are the disruption of local ecosystems. This is because it requires a large area of land to be cleared to set everything up and to get unobstructed sunlight.

[@matthewarendse1988]

100% smoothest ive ever seen 😅🤣

[@عبدللهبنعبدلله-ن8و]

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[@aarishraja-em4id]

@@عبدللهبنعبدلله-ن8و bot bot bot he’s a bot

[@chankokkeong802]

As an undergraduate engineer, my life becomes brighter when watching your KZbin video. Thanks for the knowledge.

[@powerupwithpowerpoint]

You are a true genius..Thanks for sharing your knowledge...

[@nevg5908]

No..sterling is a genius. This guy makes basic videos

[@eSKAone-]

This engine will keep on working unless & until there is 'NO' temperature difference between the two plates!

[@premnathmr3477]

What environment concern will come due to this type of power production??🙄🤔🤔🤔

[@skemamuddin2007]

No man they are team is genius

[@andreyserebryakov2231]

3d animations for concepts must be widespread! Thank you so so much for the catolog of animations!

[@gabedarrett1301]

Yes! I got a stirling engine a while back. After experimenting, I found that its max theoretical efficiency was 80% on average with a lower bound of 70%. A car engine is about 25% efficient for comparison

[@s.sradon9782]

remember that you have to burn the fuel and transfer the heat to the engine via heat exchanger which lowers the efficiency.

[@itspersiangulfmoron.repeat2242]

Stirling engine can reach theoretical efficient of 99% if you you use liquid helium.

[@gabedarrett1301]

@@itspersiangulfmoron.repeat2242 Could you please explain why that's true? I've only started learning thermodynamics

[@itspersiangulfmoron.repeat2242]

@@gabedarrett1301 It's the Carnot formula which says theoretical maximum efficiency of a thermal engine can be measured by: 1-(cold-temperature/hot-temperature) Of course you can never reach that efficiency cause never the gas inside nor the materials used to build it are not ideal.

[@gabedarrett1301]

@@itspersiangulfmoron.repeat2242 Yes, but why does liquid helium increase performance like that?

[@captainwin6333]

A Swedish submarine with a Sirling engine evaded the full might and detection capability of the US Navy fleet in an exercise, bypassing all the anti-submarine ships and getting off several dummy torpedo's onto the main carrier. If that was a real war situation, the US Navy's carrier would be at the bottom of the sea along with it's numerous aircraft and thousands of personnel. The Stirling engine runs so quietly, the US Navy couldn't detect it.

[@andrew627]

That is absolutely false. First of all, an aircraft carrier can withstand several torpedoes. Second, in war games, the defender is given every disadvantage possible, so it’s not realistic.

[@texanplayer7651]

@@andrew627 "an aircraft carrier can withstand several torpedoes" You played too many video games havent you? Ask any military expert how many torpedoes are necessary to sink any ship, they will tell you something like this: "where will the torpedo hit? Cause one single shot in the right place makes the whole ship go glop glop glop" Life isn't like in video games where ships and soldiers have hit points. If you extended your left auricular high above your head and let a tank shot a round on it, you will lose the finger but you will be mostly fine. Technically you "survived" a tank shooting at you. But I think we can agree that this experiment doesn't mean the human body can withstand several rounds of tank shots before dying. Well ships are the same and make no exception. Sure there are parts where torpedoes don't hurt the ship at all, but in other places it's a one hit kill.

[@andrew627]

@@texanplayer7651 seems like you have never heard of USS america. When we retired an old aircraft carrier, we sent several real torpedoes right at it and it didn’t even cause a dent. We also dropped Bombs and missiles on it and it didn’t get close to sinking. We had to use a demolition team to rig up explosives on precise locations and open up holes on the interior so it would actually fill up with water and not just put a crater in the outside later doing nothing but making a bunch of drag underwater.

[@N330AA]

I'd imagine it was just running on battery when it did that.

[@xavierrodriguez2463]

@@andrew627 you're coping, it was an entire Carrier group.

[@kreynolds1123]

Thank you for the video. You point out it has a higher efficency but missed the very thing that Robert Sterling invented to improve the efficency of his engine. He called it an economizer, but today we call it a regenerator. And as for historical accuracy I would have preferred an animation of the inventions in his patents. other engines, introduced changes while still using the same basic stirling cycle were invented by other people.

[@moinhassan4925]

This engine was my thesis project for mechanical graduation and after the project i became very much interested to make a power plant using this brilliant technique

[@currentfaves65]

Are there any sterling power plants using geothermal energy ?

[@sudheeramudala5670]

please share your observations and did you have a sterling engine for yourself?

[@mickeyk899]

yeah...can you share a google doc for the research you did...

[@matthewong7060]

hi, would like to ask something regarding the solar PV Panel on the last segment of the video. 1. how much power is attributed to solar PV and to the stirling engine? 2. what is the area requirment for every kWp produced? 3. whats the environmental concern mentioned Many thanks, Matthew

[@matthewong7060]

@Eric Verlaet due to the insulation material required by the stirling engine?

[@The_Opinion_of_Matt]

On number 3, I'm just guessing, but I expect the environmental concern was habitat loss for animals. The best installation use for Green energy is likely at point of use. Meaning, install the power generation at a house, or small business. Tesla's solar roof tiles make great sense as they take the roof of a house and add another use to the roof. Likewise, many homes have enough roof to fit one of the Maricopa Solar projects power generators in the yard. And/Or a small windmill in the yard. Combine all three and a form of energy storage and it wouldn't be difficult to provide enough electricity for the house. Put all of them at every house in a neighborhood and your have powered the neighborhood with extra left over for large businesses and factories. I doubt this would provide enough power for large factories so they would need additional power generation on site as well. This distributed power generation model shifts the profit from traditional power generation (Large power plants and investors) to homeowners and the companies and investors who build the homeowner power generation devices.

[@alexprime7369]

Hi @Mathew Ong, is fascinating to see that we both have the same thoughts :) It would be a life changing solution if we could pull this off.. Maybe there are more like us out there :)

[@donaldpetersen2382]

What we need is a bunch of teeny tiny ones. This would allow it great market applications in insulation and a new kind of indoor environmental control we aren't even close to otherwise.

[@khqlifq]

@Eric Verlaet Not reliable how, care to elaborate

[@rubvamp]

I think the simplicity and safe operation is a key to the advantages to this design

[@CarlosAM1]

"This was later abandoned due to enviormental concern" WHAT

[@dnomyarnostaw]

Transformer fires, according to en.wikipedia.org/wiki/Solana_Generating_Station

[@CarlosAM1]

@@dnomyarnostaw alright, thx

[@MrBearyMcBearface]

Environmental people don't actually want to fix the environment.

[@HuwPewPew]

@@MrBearyMcBearface solar is actually worse for the planet than nuclear.

[@tillsdamills2758]

@@dnomyarnostaw thanks that was an interesting read.

[@marekhavel7749]

Finaly...simple and detailed explanation of stirling engine on youtube. Thank you🙂👍

[@clintonhalunajan467]

Can You do HOW THE "CORELESS MOTOR" WORKS

[@funnygamerhd5242]

It's just a dc motor, but it doesn't have an armature, so the windings are very close to the magnets in order to produce a force on the rotor

[@sharadthecurioustardigrade1533]

There is no difference between a dc motor and coreless motor, expect for the steel plate stacks making up the core, there is no core, so the magnetic fiend can change faster, so if spins faster, this is why it's used in smaller RC helicopters and drones

[@pankajkumarsain4783]

Love From India ❤️❤️

[@ARUNRAM-1990]

Love from TamilNadu

[@enginediy]

Amazing and great explanation!👍👍👍

[@billyzummo7934]

Love it!! It should be noted this cycle is extracting work on the expansion and compression stroke of the power piston. With this in mind the max efficiency can be calculated as an ideal reversible carnot cycle!!!

[@bhushandhuri2660]

Pls make video on this topics- "Principles, things which we are not using now because of time and new inventions but have great potential once they are further developed"

[@krzysztofbroda5376]

let me reword it in better english for you so you can edit your comment and get more likes: "principles which we are not using now but have great potential in the future once they're further developed"

[@bhushandhuri2660]

@@krzysztofbroda5376 thank u

[@اللونالأحمر-ج6ع]

such as mechanical television.

[@deofe1993]

What a fantastic explanation!

[@ostrowulf]

I am now imagining setting up a large one of these in Alberta with an area bellow it. Then durring the winter, say when it is -40C, light a fire in the area below heating the lower plate, and seeing how much power you could get with the rather large heat differential.

[@GaneshGani-yf4zi]

Nice example sir

[@alihosseiniroknabadi4828]

It was the best video I found on the net😇😇

[@pavelslama5543]

Put this under a hybrid car, connect the hot size to the exhaust, put a simple self-propelling cooling system on the opposite side, and use the power to recharge the battery. Edit: and while you do that, why not add a second one between the engine and the radiator?

[@sagnikmaity1444]

I think at that time when Robert sterling invented this engine, Charles and boil wasn't born yet. This is the reason why this engine worked.

[@Kartik_Sharma3060]

I have a suggestion for you.Please try to make a video on mechanism of all or 4-wheel steering system. Thank You ! 🙏

[@createyou7827]

Thank you bro

[@farhs3133]

Wow 2 videos in less than 24 hrs

[@venkataratnamborusu777]

Nice technique sir

[@urla.tejaswitaruneee2483]

Thank you it's nice

[@pallabsamanta3884]

Close to my liking.

[@diplomatutorial3256]

Such a nice .explanation

[@muneerbasha1958]

Amazing channel

[@NEET-eb3ve]

this surely made some sense

[@herbertpocket8855]

Oh man the way it went into the 3D was amazing!

[@PRITAM_KUMAR_RAUT]

Thank you for the video. 😇

[@JsucksYT]

this video was great! however hot or cold doesn't actually matter for the direction of rotation. I was skeptical of this so i bought one to test this out and it spins both directions with both hot and cold. it just depends on the direction you spin it to start it up.

[@DIYwithBatteries]

You are a freaking Genius Sir 🤪👍

[@jasonrebello8058]

Thanks for the video. Informative

[@ReallyNo.01]

0:37 nice transition

[@mudasirbashir1113]

Thank youu sir

[@johnsonnifemi943]

Helpful

[@josephmcconnell7310]

Hi. Thanks for making such a great, informative video on the Stirling engine. I've been wondering something about the Stirling engine for a while, especially when it comes to modern-day use. Carnot efficiency, to my understanding, relates the difference in temperature between the hot side and cold side of any heat engine. The less the difference in temperature, the less the efficiency of the heat engine. With this said, it seems to me that the Stirling engine would be very inefficient because it can operate with really small differences in temperature, such as a cup of ice water and room temperature, compared to other heat engines. Do you think this is an important consideration for the modern use of the Stirling engine?

[@madhurideshpande8631]

good video

[@ernestoramos520]

“Environmental implications”??. This comment is more intriguing than the engine itself.

[@mystcat3]

Agreed

[@diabolikhunter]

Yes what are the environmental implications? Because I couldn't see one.

[@nnamerz]

I was wondering the same thing, but other comments below seem to state that the environmental concerns are the disruption of local ecosystems. This is because it requires a large area of land to be cleared to set everything up and to get unobstructed sunlight.

[@mcOscarmann]

​@@nnamerz I know a planet where 25% of its land surfase is desertic, so it wouldn't need to be cleared.

[@dnomyarnostaw]

Transformer fires, according to en.wikipedia.org/wiki/Solana_Generating_Station

[@souffle420]

Well, won't it be great for geothermal conversion? Especially on not-so-high temperature like on hotspring. It can be an alternative to provide electricity in such place, making them less dependant on power line. Considering some hotspring inn are in quite secluded area, it can be used as an independent power source. Moreover some hotspring are in cold climate, meaning the temperature difference between the bottom and upper part will be quite high.

[@pierkopollo8793]

very nice. congragulations

[@Orkhanaga]

Big thanks to you for everything))

[@crazybuddiesofficial6508]

Best video ever

[@ayuse01]

Nice explanation, now i get it.

[@macroiu3778]

in other words, the flywheel can be replaced by fan and the air is forced to enter the input channel of vertex tube and recycle back with cold air stream to flow through the top plate surface to maintain large temp differences with the bottom plate except the rotating speed of fan must be increased, otherwise the compressed air is not available to effectively provide are stream into the vertex tube?

[@reina4969]

Aren't RTG generators used in long distance space probes? They are essentially radioactive heat sterling engines.

[@justinzhang1720]

I think RTG specifically use thermocouple for energy generation... But there are other generators like kilo power that are trying to use Stirling generators to achieve higher efficiency...

[@sheefatrabbi7382]

That transition tho 💯

[@sanjuansteve]

I think a great way to generate renewable energy could be to simply lay a steel I-beam between 2 concrete anchors for example and then to aim reflectors to heat the steel to it's max thermal expansion with the Sun, then to shade it alternately during the day, capturing the energy from the thermal expansions and contractions. Let's put solar panels on every home, business and covered parking rooftop and switch to electric vehicles making nearly everything we do solar powered while completely decentralizing our power supply and empowering everyone as power generation owners.

[@thekoreyway9272]

all we have to do is put a clutch like engagement and disengagement on the fly wheel that way the motors power does not have to cut instantly when preparing to stop. When you hit the break pedal it could hit the breaks and instantly take pressure off the wheel making it spin freely.

[@johnyoungquist6540]

The Stirling engine that you show while it works on Robert Stirling's principal was not invented by Robert. This engine with the large area flat displacer and glass cylinder is patterned after a low delta T design developed by Dr. James Senft. He is a Stirling engine researcher and has written books on the subject. He published a paper on this low delta T engine design years ago. It worked on 1/2 deg C temperature difference. Prior to this most Stirling designs needed heat from a propane torch. Various commercialized versions have evolved based on his design.

[@funandart668]

What is the nameof this software used for animation

[@izzyplayzz8403]

My brother ******* informed about your channel and its really 😎 cool

[@crenapun57]

tq

[@ananthakrishnan2706]

Your Chanel is very nice

[@hanytourky]

very good

[@canhobiatolyesi3650]

Great job...

[@fredsonvideo3709]

Wow😊 thank you for sharing this video 💕

[@s.sradon9782]

RTGs are a pretty modern aplication of the stirling engine

[@oswaldjh]

Sterling engine isn't on the same graph of power output of a nuclear source used in RTGs. One has a cute little flywheel, the other needs your respect.

[@s.sradon9782]

@@oswaldjh some RTGs use the stirling engine in place of inefficient peltier devices. thus they are on the same level of power output as they are one. Do you research anything you type?

[@oswaldjh]

@@s.sradon9782 Seebeck Effect has no moving parts. Can't see a Stirling doing well in adverse conditions. I'll rely on solid state devices anytime.

[@s.sradon9782]

@@oswaldjh that's why some RTGs use peltier devices while others use Stirling engines. Although the wiring for an array of hundreds of those must be pretty complex. It's all to the discretion of some NASA engineers.

[@sambhai247]

*Make a video on how does a parachute works.*

[@johnwt7333]

Drinking game, every time he says "Robert Stirling" take a sip

[@K41-g6p]

maybe we could use these in spacecraft, since there would have to be a difference in temperature between the outside and inside of a spacecraft designed for humans

[@risingredstone5949]

No there wouldn't be, as outside the the space craft, there is no air, so eventually both the plates, inside the spacecraft and one outside will neutralize at the same temperature and the engine will stop.

[@4n2earth22]

@@risingredstone5949 Interesting response; consider: Black body radiators are used by the ISS and satellites to get rid of excess heat. Solar PV cells are more efficient than Stirling for LEO and satellite applications mainly because of the weight penalty, among other considerations.

[@Chaos77777]

@@risingredstone5949 Objectionable at best. A cold plate on the outside of the space craft will continue to radiate energy and maintain a lower temperature. And since the inside of the craft must be warm enough to maintain human life, the temperature difference will always exist, especially since the interior plate of the engine must be thermally insulating. The biggest danger to this idea would be the net loss of heat to outer space over a long period of time, so that thermally insulating plate better be really good at it's job

[@risingredstone5949]

@@4n2earth22 oh alright, I was imagining only outer space, no input of solar radiation. If that is considered, then this could work.

[@risingredstone5949]

@@Chaos77777 So as OP hasn't said why they want to install the stirling engine, Im just going to go ahead and assume that its to generate electricity to be used as a power source. Because stirling engine uses the temperature change between the plates to turn the wheel, this causes energy to be converted from heat difference to work. and the overall effect is that the system cools down over time, no matter the insulation as without that, the stirling engine wont work(and if you manage to make a stirling engine that works without a net loss in heat, then you've essentially created a perpetual motion machine which is not possible). Now, if the cold plate on the outside radiates energy from the system to surroundings, the entire system will lose energy, and the space craft will get colder. Which would produce energy but this will result in the heating system having to kick in over time and heating up the space craft again which would have to account for the radiated energy. So whats happening here is that there is a net loss of energy in your spacecraft.

[@MrTaxiRob]

Sweden built a submarine that utilizes a Stirling propulsion system, it's so quiet that the US Navy "borrowed" it so they could learn to identify it through sonar (you know, because they're allies...) en.wikipedia.org/wiki/Gotland-class_submarine

[@productdesignideaandinnova9097]

love it so much

[@user-vb6lq9il5v]

NO. It's not "power from an ice block." It's kinetic energy obtained via a temperature differential between separate parts of the mechanism.

[@alpzbit1]

Great

[@mohammedk9_xh]

Hey i had an question why dont they use this at massive plants to create electricity and instead use steam to make the fans rotate?

[@ethankral3215]

(I think) its because you would need a crazy amount of temperature difference between the hot and cold plate to produce the same amount of energy that those massive plants would make. So much so that's its easier and more practical to use the steam method to make the same amount of useable energy.

[@mohammedk9_xh]

@@ethankral3215 ohk thanks

[@itsanoynomous3253]

This channel is 💎

[@ASSADRAZA-n3w]

Is there any metal reactive to cold water so we attach it with piston. It move away from cold water and water vapors push it away.

[@freddynelson8886]

Most Impressive. 🌎🌏🔍⚡️ 📡 👍👍👍👍🤗🤗✌

[@princeray5872]

Sir please make viedo on road roller drum how does it work

[@vishnuvardhankk9222]

Can you please make an animated vedio on capacitor working and why it will blast when we use it in reverse polarity...

[@abiniththangavel6751]

Please update the concept of entrophy

[@sheefatrabbi7382]

Isn't it easy to focus sunlight to heat up the bottom surface of the engine? Or did I understand wrong?

[@11Ken]

Nice!

[@diplomatutorial3256]

Which software do you recommend for the analysis of machine mechanism for student in which i can create my own machine and visualize its motion.

[@lesking6541]

You have omitted to mention the fact that the Displacer piston does not fit its cylinder closely. There is a gap between its edge and the cylinder wall, allowing air to easily transfer from below to above the Displacer piston. Otherwise an excellent illustration of the workings of the engine.

[@prodbytukoo]

hi, how could I beat the friction caused by the displacer

[@GerardPinzone]

Have there been ANY real-life examples of this engine being put in use?

[@MrRoboskippy]

Yes, electrical generators. Some used on military submarines, others used in yachts. Google whispergen.

[@ravikaler1]

Didn't understand how isolators come down automatically once it moves up.

[@robotech681]

No one talks about how the piston stick goes circular motion without being obstacled 😂

[@jadamzink]

Would the warm source have to be on bottom and the cold source on top? Or would it work the same either way

[@jatin7244]

Sir please make a video on 🤔 understanding Microwave communication in mobile tower

[@abdurrhaman1950]

Brilliant. 🌹🌹💓💖

[@shazam6274]

Forgot to mention the low torque and power of practical Stirling engines. Also the size / weight are poor and the energy needed for the heat difference is not in the energy calculation. They make nice desk ornaments though.

[@abdullahadnanabir6771]

3:18 "The heated air can lose heat to the cold plate" But how can that be as there is an insulator "displacer" in the middle?

[@TomasWatchReviews]

so, it could works as a power generator in buildings. Especially in winter and hot summer, where the delta of temperatures is great.

[@pescante2711]

*Thermodynamics left the chat*

[@TomasWatchReviews]

@@pescante2711 ? de difference in temperatures runs it.

[@phaedrussocrates7636]

WHAT environmental concers stoped its aplication with solar panels? Can you elaborate?

[@rapture9125]

Possibly because solar panels tend to return less energy over their lifetime than the energy cost to actually make one. It takes energy to dig all the materials out of the ground, build them, erect and maintain them. Giant windmills are the same. There are windmill designs that are much smaller, much lower to the ground and don't have massive blades that damage wildlife and are much more efficient but are not used anywhere. Why ?? The simple answer...CORPORATION

[@dnomyarnostaw]

Transformer fires were part of the problem. en.wikipedia.org/wiki/Solana_Generating_Station

[@unknowunknown9096]

Could this be use to drive a turbocharger

[@varunprakash6207]

Striling engine working on the principles of steam engine but different idea with heat steam I. Different way 👍👍👍👍👍

[@ProfessionalGasLighting]

Technically a system of pressure

[@Qwarzz]

Some Swedish submarines apparently use Stirling engines.

[@The_Opinion_of_Matt]

Yep, here is a link to a story about them. www.thedrive.com/the-war-zone/21662/swedens-notorious-little-carrier-killing-sub-just-got-some-major-upgrades

[@bfedkjwerfegregfrerg]

In addition, to understand the modernity and applicability of this engine concept, the future lunar missions and to Mars are going to be powered by a very small nuclear reactor coupled with Stirling technology. Such a reactor is named KRUSTY (yes! You got it! Like the Simpons' character) which stands for Kilopower Reactor Using Stirling TechnologY.

[@nasim3269]

Could you please do a video on the electric grid?

[@tonywright8294]

It’s Ray Davis from the kinks !

[@ananddesai24]

What if their is some gear ratio to crankshaft and flywheel

[@crackedemerald4930]

Will likely make the flywheel harder to spin and introduce more parasitic drag.

[@ananddesai24]

But wt if 2:1 gear ratio more speed but low torque

[@shivajoshi9068]

why didn't maricopa solar and storage project work? can you please tell

[@scuzyprod.1611]

In what world an engine with 2 plates, 2 pistons, a flywheel and an open flame is heavier and more expensive than an engine with a spray thingy for fuel, a sparkplug, a piston, multiple valves that close and open and a flywheel. The Stirling engine has fewer parts than a gasoline engine. Also, you could vary it's speed using a transmission, not the temperature