На главнуюНаука и техникаПохожее видеоЕще от: Jeff Quitney

Stirling Cycle Engine: "The Stirling Engine: A Wave of the Future" 1992 NASA

Оценок: 1213 | Просмотров: 224810
Support this channel: https://www.patreon.com/jeffquitney more at http://auto-parts.quickfound.net/ "This video describes the Stirling engine, an external combustion engine which creates heat energy to power the motor, and can use many types of fuel. It can be used for both stationary and propulsion purposes and has advantages of better fuel economy and cleaner exhaust than internal combustion engines. The engine is shown being road tested at Langley Air Force Base." Originally a public domain film from NASA, slightly cropped to remove uneven edges, with the aspect ratio corrected, and mild video noise reduction applied. The soundtrack was also processed with volume normalization, noise reduction, clipping reduction, and/or equalization. http://en.wikipedia.org/wiki/Stirling_engine Wikipedia license: http://creativecommons.org/licenses/by-sa/3.0/ A Stirling engine is a heat engine operating by cyclic compression and expansion of air or other gas, the working fluid, at different temperature levels such that there is a net conversion of heat energy to mechanical work. Or more specifically, a closed-cycle regenerative heat engine with a permanently gaseous working fluid, where closed-cycle is defined as a thermodynamic system in which the working fluid is permanently contained within the system, and regenerative describes the use of a specific type of internal heat exchanger and thermal store, known as the regenerator. It is the inclusion of a regenerator that differentiates the Stirling engine from other closed cycle hot air engines. Originally conceived in 1816 as an industrial prime mover to rival the steam engine, its practical use was largely confined to low-power domestic applications for over a century. The Stirling engine is noted for its high efficiency compared to steam engines, quiet operation, and the ease with which it can use almost any heat source. This compatibility with alternative and renewable energy sources has become increasingly significant as the price of conventional fuels rises, and also in light of concerns such as peak oil and climate change. This engine is currently exciting interest as the core component of micro combined heat and power (CHP) units, in which it is more efficient and safer than a comparable steam engine... Robert Stirling was the Scottish inventor of the first practical example of a closed cycle air engine in 1816... Functional description The engine is designed so that the working gas is generally compressed in the colder portion of the engine and expanded in the hotter portion resulting in a net conversion of heat into work. An internal Regenerative heat exchanger increases the Stirling engine's thermal efficiency compared to simpler hot air engines lacking this feature. Key components As a consequence of closed cycle operation, the heat driving a Stirling engine must be transmitted from a heat source to the working fluid by heat exchangers and finally to a heat sink. A Stirling engine system has at least one heat source, one heat sink and up to five heat exchangers. Some types may combine or dispense with some of these. Heat source The heat source may be provided by the combustion of a fuel and, since the combustion products do not mix with the working fluid and hence do not come into contact with the internal parts of the engine, a Stirling engine can run on fuels that would damage other types of engines' internals... Other suitable heat sources include concentrated solar energy, geothermal energy, nuclear energy, waste heat and bioenergy. If solar power is used as a heat source, regular solar mirrors and solar dishes may be utilised. The use of Fresnel lenses and mirrors has also been advocated, for example in planetary surface exploration... Heater / hot side heat exchanger In small, low power engines this may simply consist of the walls of the hot space(s) but where larger powers are required a greater surface area is needed in order to transfer sufficient heat. Typical implementations are internal and external fins or multiple small bore tubes. Designing Stirling engine heat exchangers is a balance between high heat transfer with low viscous pumping losses and low dead space (unswept internal volume). With engines operating at high powers and pressures, the heat exchangers on the hot side must be made of alloys that retain considerable strength at temperature and that will also not corrode or creep. Regenerator In a Stirling engine, the regenerator is an internal heat exchanger and temporary heat store placed between the hot and cold spaces such that the working fluid passes through it first in one direction then the other. Its function is to retain within the system that heat which would otherwise be exchanged with the environment... The primary effect of regeneration in a Stirling engine is to increase the thermal efficiency by 'recycling' internal heat which would otherwise pass through the engine irreversibly...
Категория: Наука и техника
Html code for embedding videos on your blog
Текстовые комментарии (386)
HoldShiftt2Run (2 дня назад)
NASA maybe a century or two late on this "wave of the future".
Human4873 (6 дней назад)
Not good for business as it requires less maintenance and will cause unemployment to rise as it also requires less parts to run and has higher fuel efficiency . Thats some of the reasons why it didn't get to mass production. And thats folks is why governments withhold technological advancements .
dudz delrio (1 месяц назад)
hi have you added solar powered peltier between the hot and cold pins?
RetroX (2 месяца назад)
Wonder what what happened to these cars.
RetroX (1 день назад)
SuperMonkeyFling that’s sad
SuperMonkeyFling (2 дня назад)
You can see this truck using google streetview.
SuperMonkeyFling (2 месяца назад)
The Truck is sitting outside, untouched.
David Nagore (3 месяца назад)
"Wave of the future"? Stirlings have been around for almost 200 years!
HoldShiftt2Run (2 дня назад)
lol ikr
Ano Nymous (5 месяцев назад)
Stirling Engine are in Swedish Submarines
Skoda130 (5 месяцев назад)
In fact the engine does have a carburettor. Only it's called "atomizer", and fed by forced induction.
Шашни Женские (5 месяцев назад)
looking for really good idea to make some diy stuffs ? go to Avasva
John Irby (5 месяцев назад)
After reading some comments below, I can see that it probably be easily made for running at a constant speed to power an electric generator, used to charge batteries and power electric vehicles, sort of like a mini diesel/electric locomotive.
Joe Momba (6 месяцев назад)
WHY ARENT WE FUNDING THIS!
Mike or Jimmy (6 месяцев назад)
They come around every so many years but nothing ever comes of it. Where is my flying car and my vacation on the moon? Too many politicians have the hand in the cookie jar.
Fred Smith (6 месяцев назад)
the stirling engine has a HUGE problem in a road vehicle its difficult to throttle!
Bill Hanson (6 месяцев назад)
and 26 years later its still not in a vehicle to buy....... funny that.
Xavier Smith (7 месяцев назад)
Someone needs to make a stirling car. Please.
LMW (7 месяцев назад)
I bet some Large oil company somewhere owns the patent and design...
Some Dude (7 месяцев назад)
yep.. where is this engine now?
Jr Animator (8 месяцев назад)
almost 2020 and we still having a hard time on electric cars
David Sherburne (8 месяцев назад)
What was the mpg.
TN RC (8 месяцев назад)
95 horsepower? what?!
Brandon H (8 месяцев назад)
But if it can burn any fuel how's the government going to get there fuel tax? I think that's really what killed this Tech.
Tadesan (9 месяцев назад)
Why do you people know about this stuff? You should be living under a rock waiting for your next issue of people! You don't understand the first thing about thermodynamics or chemistry! You don't even understand Newtonian mechanics like power and torque etc. You aren't familiar with the concept of a unit. How can you people feel like you know what you are talking about!? You don't! Leave it to smart people! Give yourself a hand for tying your shoes! You deserve it! Stop watching videos about free energy and alternative engines and conspiracies! You are too stupid! It's ok!
H Max (10 месяцев назад)
o.k. so what happened? Hummm?
Wastelandman (10 месяцев назад)
Weird, this video makes 1992 look like 1975...
talon55130 (10 месяцев назад)
It consistently delivered more miles per gallon. What the hell does that mean? As compared to what? A tank? Notice today more then 30 years after this film there are NO Sterling powered anything. There's a reason for that. They're useless. If there was any practical applications or benefit over conventional engines they would be all over the place. They are nothing but curiosity's.
de0509 (11 месяцев назад)
Ah. Really love that intro music. That nostalgic style of music that brings you back to childhood
james (11 месяцев назад)
Power for America! Where do I get one?
chuckels431 (1 год назад)
Evidently most people don’t know there are full size submarines in some countries using stirlings for main propulsion, if I remember correctly the Swedish and the French I believe were using them with kerosene and liquid oxygen for fuel.
xynudu (1 год назад)
Great job Colin. Awesome.
James Copeland (1 год назад)
"more miles per gallon" ...than what?... a lawnmower?
The Q (1 год назад)
National Aeronautics and Space Administration. WOW THIS SURE HAS A LOT TO DO WITH SPACE!
jamie Allen1977 (1 год назад)
5:28
ufoengines (1 год назад)
A Nuke powered Pickup? So Cool!
Brian Strycker (1 год назад)
ok there is so much automotive technology why are we not using it yet or even hearing about it 20 some years later
Titus Tucker (1 год назад)
One application this NASA film didn't go into is developing a Stirling engine generator using the heat from radioactive decay from spent nuclear fuel (it's still quite hot, just not enough to run a turbine) enclosing the whole package in a pressure container and using it for power on the eventual Mars mission (if it ever happens, we could go now if the funds could be found and equipment built), it would be a hundred fold more efficient than the thermocouplers used now.
Janusz Jutuba (1 год назад)
Propaganda jebac ameryke
Vynleinn Music (1 год назад)
200 years same fudge without realization. good for toys
Fernando Hutauruk (1 год назад)
Is there any curve or table regarding best performance of this machine ? base on wheel's diameter or cylinders size ? or torque peak at which rpm ??
BluntForceTrauma666 (1 год назад)
...ignoring all else...you've gotta hand it to them, NASA did a pretty good job on the music for that intro, _especially_ for 1992. Thumbs up...
alaskanalain (11 месяцев назад)
It was probably made in the 80's and only aired in 1992. The van was converted to sterling in 1986
Vitabrick Snailslime (1 год назад)
I wanna good one. Now!
Desmond's Corner (1 год назад)
theoretically we wouldn't even need to burn anything to heat it, an electric heating coil should work fine, while i'm aware that it would then be more efficient and powerful to just use an electric motor to power the vehicle, i'd like to point out that because this engine isn't directly getting its power from the batteries, it doesn't immediately stop working when the batteries run out
Tadesan (9 месяцев назад)
You are an idiot. Please keep your mouth shut.
Dorian Demeturlias (1 год назад)
LOL just another example of suppression of technology.
Alek Polek (3 дня назад)
A spikedpsycho The tests were performed by NASA, ground tests to check the durability of the engine that can be used to generate electricity in space, the other types of engines simply would not be capable of operating there. The experiment is not about the potential car or truck application, and this engine can utilize the temperature difference between the exposure to sun and shaded surfaces.
spikedpsycho (24 дня назад)
+Steven Correa Better off as a stationary generator. Stirlings could have been used to power ships but by the 1900's turbines found their niche in naval applications and began replacing steam piston reciprocating engines. The one advantage of the Stirling; you didn't need a massive and potentially dangerous boiler or steam for that matter. Direct heat against the piston. However the temperature and metallurgy involved would have been substantial. However the turbines greater power to weight ratio made the stirling and piston engines in general obsolete. When civil ships converted to diesel by the 1950's, their superior power to weight ratio, ease of use, familiarity among mechanics and faster throttling put the stirling engine in the dust. It's not to say stirling's don't have modern applications but vehicles aren't one of them. Some submarines are powered by stirling engines and are impeccable and impressive. But stirlings have other applications. - Combined heat and power: Heat from natural gas can power a small building and the heat can be used to provide water/space heating. Way more efficiently than the power losses of grid electricity. About 30% of electricity generated in power plants sent to overhead lines is lost as parasitic heat loss. Generating power on site or within 50 miles reduces energy losses and vastly decreases fuel consumption. - Any industry where heat is generated in large quantities like steel, chemicals, forging, etc can use the waste heat as a potential energy source allowing factories and plants to produce their own electricity or sell it to the grid. - There's substantial potential for nuclear to simplify reactor design. Since a stirling relies on direct heat, it eliminates the need for water around the reactor and can be cooled with pumped air addressing the concern for nuclear plants that always need water in dry regions like Nevada and arizona. - Stirlings operating in reverse can operate as a poweful cryocooler wih temperatures achieved as low as 50 kelvin (-360 degrees fahrenheit). - Desalination: Any powerplant that uses thermal energy there's waste heat. Harnessing the waste heat via stirling engines can operate pumps to pump seawater thru reverse osmosis membranes making fresh water. Desalination is always prohibitively expensive because of the direct energy costs, with stirling engines using waste heat as their energy source energy costs are eliminated, fresh water would merely be a byproduct of power generation.
Steven Correa (25 дней назад)
+spikedpsycho I guess it's best for hybrids?
spikedpsycho (25 дней назад)
No one is suppressing this technology. You're free to build one if you want. At 75 horsepower, it's enough for a small economy car, but not for a truck or SUV where power is required. The downside to stirling engines is they cannot be well throttled compared to internal combustion engines, they don't start immediately and the power to weight ratio is poor. These engines are best for generators than for car engines. Secondly, the acceleration is sluggish and start up times are longer; Versus a normal engine you can start it up, put it in gear and drive off in five seconds.
Steven Correa (1 месяц назад)
+Ardin Anester The Jews are just like everybody else. Some of them are good. Some of them are evil.
fat and furious (2 года назад)
sterling engines don't need fuel so how is this a sterling engine? they run off of the change in temp . cold piston n got piston. I believe it's alpha and beta sterling
borisjoukov (1 год назад)
Jon Hughes what we call a stirling engine is simply an engine that follows a stirling cycle (see more on wikipedia). Whatever drives and maintain the temperature difference.
fat and furious (1 год назад)
That runs on fuel. Not the change in air temperature like a sterling engine uses to run
teirry henry H (1 год назад)
They most certainly do need "fuel". Temperature gradients = energy
borisjoukov (1 год назад)
Of course they need fuel (or any heat source) so the heat can be continuously converted to work. Otherwise the temperature difference would not last
Ted Logan (2 года назад)
Shut up and take my money!
IoanBojan (2 года назад)
John Malone engine starts injecting water in its hot space.
hacker prasad (2 года назад)
is baekelite, vacuum sealed cylinders and thermostats out of the question?
bledlbledlbledl (2 года назад)
How did they throttle those things? (I've heard that stirling engines tend to overspeed when the load suddenly decreases, because the hot-end cylinder holds heat)
Valeriy Reiter (1 год назад)
+kain hall It's pretty common problem, but not so hard to fix. After trying different springs you always find a proper ones. In Ural, for example, many people used ones from a tape players. Much easier than trying to find what system failed with all these sensors and commutators)) In a long trip you need somethin' to replace and go, that's why I always keep my old contact ignition with mechanical advance (and a new coil as well)
kain hall (1 год назад)
@valeriy tell me about it..... my dad and i spent so much money and hours trying to figure out the detonation on his 72 Plymouth 440 finally, we fixed the machine shops hot rod....and in the old school tradition, that means he gets to fix our hot rod re-curved the advance...new springs and weights.....my dads is so happy, the car ran like crap for years lot more of an old grey bread skill than plugging in a laptop and changing numbers
Valeriy Reiter (2 года назад)
+AtheosPhyve But actually, they can use the same type of centrifugal governors, as in the ignition system of old IC cars. It was made to advance/retard the ignition without road and acceleration/braking affect
AtheosPhyve (2 года назад)
Formerly, they used what was called a fly-ball/centrifugal governor, it's a rather archaic (the first with feedback) control system, but still works.
Valeriy Reiter (2 года назад)
+bledlbledlbledl Throttle release will work like pressure-release valve))
FSXgta (2 года назад)
I think you would need a rather big stirling engine, when a much smaller gas engine would make the same power. You can see that sterling engine is filling up the engine bay of a truck and only making 75 horsepower? In todays market i think it would be to under powered. maybe technology makes us able to make more power in the same size engine, but i dont think it will be very practical.
MsSomeonenew (2 года назад)
In the market of gigantic 2-3 ton trucks that for some reason also need to do burn-outs this is the wrong choice of engine. But if one goes for "eco box" cars that stay under a ton, small frame and run 50-70HP diesel engines for maximum gas mileage in the first place, then the Stirling is a good option, or it would be if they were manufactured on larger scale.
34fb (2 года назад)
turbo would cool down the engine xDDDDDDD
Steven Correa (2 года назад)
what about as a generator on an electric car?
Kristianus Ligara (2 года назад)
I agree with you about using it in cars... but boats can use something like this. Also, a Stirling engine with focused solar gatherer as heat source makes excellent electricity generator.
Valeriy Reiter (2 года назад)
There's no need for gearbox because stirling has so much torque. As an example, steam-powered cars can run 60-70 mph on 30-40 hp engines, because all the power is transmitted directly to your driving wheels, with almost no losses. Stanley Rocket was the fastest vehicle in the world in 1906 breaking the land speed record of 127 mph on Ormond Beach. In 1907 it crashed at speed over 200 mph with 40-50 hp engine...
chul chess (2 года назад)
the future is not now : )
Mott theHoople (2 года назад)
so what happened?
Anvilshock (1 год назад)
A Stirling Hybrid should be quite interesting then.
Demonslayer20111 (1 год назад)
30 seconds is not a long time. and those problems could be solved by making it do what weve been doing on locomotives for decades. use the stirling to produce eletricity for motors.
MsSomeonenew (2 года назад)
Not so convenient in transportation, takes a long time to get going, no big burst of power, with engine power the size needs to go up proportionally,... These things are much better in use with static applications at a steady RPM.
zap wazzup (2 года назад)
I found the " Motherload " NASA paper of the NASA stirling engine project dated 1997http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19970012689.pdf
Yebo Screbo (1 год назад)
Nice ! Thanks
Jeff Quitney (2 года назад)
+zap wazzup Good work.
metamaggot (2 года назад)
apparently this got through 8.3 L per 100km..that's a little bit less than an old van would..maybe it could be improved further
Stephen Balogh (2 года назад)
Then why the sterling engine isn't in use yet?
idris bakteria (3 месяца назад)
Oo
Valeriy Reiter (1 год назад)
Exactly
BushidoBrownSama (1 год назад)
conspiracy theories aside Stirling are too heavy to be more fuel efficient than equivalent power ICE in cars which isn't a problem in marine environments because the water provides an excellent cold reservoir dramatically increasing the temperature difference in a way that does not exist in cars and as we should all know greater temperature difference equals greater power
Deepak Deep (2 года назад)
can someone please tell me whats the name of the song in the background ?
Eddie Somers (2 года назад)
Why don't every one use this today save clean air ?
Corpsie (2 года назад)
+Valeriy Reiter - it has nothing to do with cheaper.
Valeriy Reiter (2 года назад)
+Corpsie Because it's cheaper to update old well-known technology)) People's trust was always at proven side, almost nobody cares about all these ecological things... If 10 people would buy Priuses and Teslas, another 20 will buy 55-57 Chevy BelAir with huge V8 or something more pleasant-looking and roaring. Or some oversized pickups and jeeps
Corpsie (2 года назад)
Because fuel injectors replaced carburetors and other IC engine technology removed any advantages the sterling had over IC engines
Valeriy Reiter (2 года назад)
Because IC engines is cheaper to manufacture, simply. And horsepower sells cars, not torque. Almost everyone want a good powerful car with a V8 or I6 at least, with a loud sound and in beautiful body
wwwelkam (2 года назад)
IC engine is lighter compared to stirling
Chuck Campbell (3 года назад)
WHATS THE POINT IF THE ASSHOLES ARE STILL GOING TO USE GAS!? THE WHOLE IDEA IS TO STOP OUR DEPENDENCE ON OIL....THEY SHOULD HAVE DONE THE STUDY USING SOMETHING OTHER THEN OIL RELATED PRODUCTS...
fakiirification (2 года назад)
+Benrob0329 where is the electricity going to come from for that? a generator in the trunk running on gas? lol
Benrob0329 (2 года назад)
+Brent Sido Split hydrogen and oxygen
Brent Sido (2 года назад)
what heat source would you have chosen that does not emit co2 as a byproduct?
Quadrunner (2 года назад)
+Chuck Campbell Max efficiency of gas engine = 35% Max Efficiency of sterling engine = 70% See the difference?
Andrew harbit (3 года назад)
wait you read that in a book and you buy into it? based on wat I jst saw that only fuels my belief that big oil slammed this engine, oil stays clean uses any fuel, that would have hurt the oil companies bad.
Yebo Screbo (1 год назад)
chuckels431 he's responding to a previous commenter who said that he read in a college textbook that the stirling engine doesn't work for automobiles and that anyone who believes it does is a conspiracy theorist
chuckels431 (1 год назад)
Andrew harbit all the practical fuels that can be used for this are produced by the oil companies, I don’t get your comment.
Yebo Screbo (1 год назад)
Exactly
Ed Briley (3 года назад)
This should be easy. Where can you buy a 75HP Stirling Engine like they tested?
Gregory Kitchens (3 года назад)
to those saying the engine doesn't throttle up and down well, that could be easily solved. to throttle up, simply make the heat source variable in temperature. for throttling down, valves on each cylinder that can open to allow equal drops in compression until the desired rpm is achieved. next question?
("RNA0ROGER") (10 месяцев назад)
Electric motors can remove that problem also in a fashion that is inexpensive and easy.
Corpsie (2 года назад)
+Gregory Kitchens - specifically what physical part within the actual Stirling engine.
Gregory Kitchens (2 года назад)
theoretical ones...
Corpsie (2 года назад)
+Gregory Kitchens - what valves are you talking about?
Gregory Kitchens (2 года назад)
Oops, no, I didn't.
Sohave (3 года назад)
Damn I would like one of those engines.
Halit Osman Yurdakul (3 года назад)
yıllar önce geleceğin teknolojisi olarak gösterilen bi motor şimdi neden kullanılmıyor merak ediyorum.
Lucas Leonardo Benetti (3 года назад)
stirling is only good as a generator and in conjuction wich cogeneration (power and heat), forget it if you try use it as a car engine. Thats what the nasa final relatory said, i read that in a book here in my university. No big oil conspiracy, or iluminatti or e.t. bullshit
Some Dude (7 месяцев назад)
still a good generator to have in the trunk of a tesla
Yebo Screbo (1 год назад)
Lucas Leonardo Benetti you just watched a video of it working as a car engine and you say you read in a book that it doesn't work as a car engine? I'm at a loss for words
Gabriel Sierra (1 год назад)
It is interesting that they say that, after what we see in this video. They were emphatic about the high torque for towing. Maybe there are other things at play here.
John Beaudette (1 год назад)
griffin gibson your vehicle will run on wood gas already
mattbackvass (1 год назад)
taken straight from the NASA paper on the subject: "The ASE program goals to develop an alternative automotive engine and to transfer Stirling technology to the United States have been achieved by the Mod 11. The Mod I1 reflects the advancements made in Stirling technology and represents a competitive alternative power plant that has evolved from a laboratory curiosity to a viable engine ready for prototype or preproduction engineering." That sure sounds like they believe a stirling is a viable alternative automotive engine if i've ever read one.
jpoolerdom (3 года назад)
"A Wave of the Future"      Robert Stirling was a Scottish minister who invented the first practical example of a closed cycle air engine in 1816, and it was suggested by Fleeming Jenkin as early as 1884 that all such engines should therefore generically be called Stirling engines.      lol
Kenneth hawthorn (6 месяцев назад)
jpoolerdom Jim
torso99 (3 года назад)
it is possible to make a everlasting car... but same time not...... we live in a world built on money baced on oil..... and we need money to rotate not stangnate that why we make garbage to keep you investing money
torso99 (2 года назад)
i see here in norway that if i planned somthing realy good i could actualy become realy independent from sosiety allready... if i can crate my free electisty.... chop my own wood.... hunt my own meat  .... grow my own potato.... goverment have no power to forsce me here....allso water is no problem here
Dennis S (3 года назад)
Ok twenty three years later where are we with this??
Frenchie (3 года назад)
I would imagine speed was controlled with a CVT ( continuously variable transmission) like snow mobiles and Jeep Compass. I would sure like to see a mechanical schematic or an exploded view of that engine, I would love to try it.
Quadrunner (2 года назад)
+Frenchie That's what I was thinking or it would be amazing in an electric drivetrain.
PacificCircle1 (3 года назад)
I don't see why a sterling cycle engine could not recover all that radiator heat in gas cars.
shazizz (3 года назад)
1992, and this is the first time I have heard of it being used in a vehicle. This world gets on my nerves! They even said by 2016 the Navy will be running their ships on hydrogen. Pretty cool that they will be floating on their fuel source! Wonder if they got that idea from a guy like Stan Meyers? But hey! if you believe in free energy you might just be crazy! because the sun, the wind,the rain and nature all around is going to send you a bill in the mail? This planet gives me a headache!
Ben Crosbie (7 месяцев назад)
Same
Justo Talkalottashit (7 месяцев назад)
loll what contributions has communism/socialism brought the "working class" that would better humanity.
twistedyogert (8 месяцев назад)
What if the Sterling ran a generator that provided power for electric motors for propulsion.
Tadesan (9 месяцев назад)
And to the rest of this thread. You are all idiots. You don't know what you are talking about. You should shut up.
Sangyoon Kim (3 года назад)
A sterling example of alternative engine!
Sangyoon Kim (6 месяцев назад)
The Eh Team If the piston 'floats' on a bearing or some sort of symmetrical crank system it need not be supported by cylinder wall and wear and tear need not happen!
The Eh Team (10 месяцев назад)
Yea, since it can run the engine at it's most efficient torque at all times like ICE in a hybrid. This thing is full of highly compressed helium (possible explosion hazard) and it's still weaker than ICE. Maintenance would be weird since lube would be in the high pressure vessel and you don't want your helium going to waste.
Robert Weekley (10 месяцев назад)
The Eh Team - I think this would be a good play for a Chevy Volt like Drivetrain, replacing the ICE, with the Stirling Engine, an 'ECE!'
The Eh Team (10 месяцев назад)
If you have the patients to start your Stanley Steamer, you have the patients for this.
Jeff Quitney (3 года назад)
Stirling Cycle Engine: "The Stirling Engine: A Wave of the Future" 1992 NASA: http://youtu.be/H_Vnxapd5fs #Stirling #StirlingCycle #engineering
H Max (10 месяцев назад)
the links come back to this video. other link has little to do with a sterling engine.
Curtis Gregory (10 месяцев назад)
coldfission it would also be noted that on a cold day the sterling motor would work even better.
Veruch (11 месяцев назад)
the temperature difference can be done by using dry ice or liquid N2. it's would start up instantly. After that its can be run on a normal radiator. the design of the engine can change to rotary type Stirling engine for more efficient. and the piston can change to aerogel, all of the moving parts also change to ceramics. Nowadays, as the technology has more development, Why not do it again?
Delicious DeBlair (1 год назад)
@SoraTheSol: No car company in the world wants an engine that never wears out and no oil company in the world wants a cleaner, more fuel efficient engine, so no they would never use it. Also, as far as how fast it heats, up, although I have never seen their machine in operation, this is not a Stanley Steamer that has to bring water to a boil, its a Stirling engine which will heat up in seconds. Compared to many older cars which had to warm up anyhow, its probably as quick or quicker. On top of that, with more modern metallurgy, even more rapid heat-up is readily available, using super thin, highly conductive tungsten alloys which can hold in the pressure while delivering near perfect heat transfer.
margus kiis (1 год назад)
Reliability is a problem.
Amalgamous Proxy (3 года назад)
I'm more interested in how throttle control was achieved. Every Stirling engine I have researched is a single speed with no ability to control throttle.
RetroX (2 месяца назад)
I would think the engine would stay at a constant high rpm but maybe have a pulley expands when you hit the “gas” to increase speed
Corpsie (6 месяцев назад)
You change the operating pressure of the working fluid inside the engine to quickly control engine speed.
Farooq Ishaq (6 месяцев назад)
Probably by use of multi stage CVT on a fxed speed engine..making transmission engineering complicated
Coleman Becker (7 месяцев назад)
You could use a variable speed transmission to change the constant speed of the engine to the wheels
Craig Roop (8 месяцев назад)
Read books published by"Andy Ross". He shows one very easy method of throttle control that reacts quickly,and is super simple!
Mike Klegin (4 года назад)
http://ntrs.nasa.gov/search.jsp?R=19880018596 interesting article about performance of this configuration. the fact its a sterling engine dose not negate inclusion of a alternator in this design.  if you do further resear it simply looks like they modified a standard engine header to include that bulbus thermal vessel above the pistons.
MrFreddiew1 (4 года назад)
The Stirling engine certainly has some benefits over ICE, despite the wrongly reported figures. As the demo car/truck/vans would have had an alternator for normal electrics, they should have added a HHO plant for the burner fuel...Water Power is FREE.
kedwa30 (3 года назад)
No, it's not 'free' but it does recapture otherwise wasted energy during idling, thus improving the efficiency of internal combustion engines. If the Stirling engine idles, then adding an HHO generator is a very good idea for further improving efficiency. You just need to automatically release the clutch on the HHO generator when accelerating or when RPMs are far from the ideal torque output so that you're not robbing performance. And the other thing is that you can actually use a Stirling engine on top of an ICE to put to use all the heat so as to improve efficiency even more. I would use a turbine/Stirling/HHO/electric hybrid.
Russell Coleman (4 года назад)
Gee what happened to this technology. I see they also had one mounted on a dyno. hooked up to yellow high temp thermocouples which means they actually ran the engine. Nominal cost,lower emissions and better mileage WTF over???
Gary Darnell (4 года назад)
gee why doesnt my car have this in it?
EmmittBrownBTTF1 (4 года назад)
What year did they poduce this film?
EmmittBrownBTTF1 (3 года назад)
+jpoolerdom thanks
jpoolerdom (3 года назад)
+EmmittBrownBTTF1 Stirling Cycle Engine: "The Stirling Engine: A Wave of the Future" 1992 NASA
megadeth22885 (4 года назад)
i want to design a stirling engine to put into an M35A2 cargo truck .. from one multifuel engine to another.. problem with steam engines is there are two parts to a steam system.. the engine itself which takes steam pressure and converts it to mechanical energy, and the boiler system to convert the water into steam, this also requires a water tank, but the stirling engine doesnt need that second part, just the engine itself making them significantly lighter and capable of just as much efficiency plus, stirlings are very, very simple in design, you can find youtube videos of functioning stirling engines made out of pop cans.. i will probably be engineering my own stirling engine for my own application though, probably a four-cylinder design to ease back on vibrations
tomaz2013 (3 года назад)
much more simple, cheap, powerful, higher RPM, only rotor and stator
megadeth22885 (3 года назад)
a rotary sterling?.. how would that work?
tomaz2013 (3 года назад)
+megadeth22885 try to make something new, like rotary version of Stirling, even better, cheaper ... I have been working on this for long time and I know how it should looks like
Zeb Hogan (4 года назад)
Where can I buy one of these
Warrawee Wildcats (4 года назад)
When was this made? I'd judge the early 70's from the voice, but the planes seem later. The Sterling engine promises much: They could be installed downstream of current generators in power stations and recover any remaining energy in the hot gases from the furnaces and the remaining energy from the turbines that currently go straight up the chimney or into the cooling towers. Perhaps carbon pricing may provide the incentive to make power generation more efficient
Jack Harper (4 года назад)
Awesome engine for gasification powerplants. This efficient and simple engine allows use of "dirty" fuels that would damage an internal combustion engine. Also, it could easily use heat from a Thorium reactor to generate electricity. Thanks to everyone for sharing this information. Seek peace and truth in all things.
deezynar (4 года назад)
They said it gets better fuel mileage but they didn't say what the mileage was.  And they didn't show the internals of the engine.  This is a sales pitch.
kedwa30 (3 года назад)
Yes it is, but not very effective since there is no way to buy one. What they are actually pitching is more money to NASA for further research. But we the people don't get the product of the research which our tax money sponsored. I would like to own one of these 75hp engines to build a light tractor around it just for my personal use. I'm not even that concerned about the fuel economy as an auto. I was sold on 'no need for oil changes'.
Guy Zvi (4 года назад)
but you still burn something and you need to regulate NOx and SOx besides CO CO2 and HC....     How Stirling's engine developed by nasa disappeared? how come we dont drive cars with this engine? they use the cryogenic cooling with stirling...
ludvig tande (4 года назад)
Great for constant speed applications.  In use at solar power plants today.  But poor acceleration and deceleration make it a dog for vehicles.
kedwa30 (3 года назад)
+Skoda130 You can use capacitors instead of batteries. They are lighter in weight and when you are using them in a hybrid configuration, they don't need to store that much power since they are only used for acceleration. It doesn't matter if you use one big capacitor or a bunch of small ones. You can have banks of many small capacitors designed to fit into custom spaces, so no need to have a cavernous engine compartment.
sleeptyper (4 года назад)
+Skoda130 Every vehicle is a compromise.
sleeptyper (4 года назад)
Electric hybrid answers that. Stirling churns steady power, electric motors turn the wheels. More acceleration ? Consume power from battery...
ufoengines (4 года назад)
Cool!
john brown (4 года назад)
Bet no one gets a chance to see the plans of this engine.
Tadesan (9 месяцев назад)
kedwa30 you are a stupid person.
kedwa30 (3 года назад)
Yes, some people need to get together and co-develop an open source hardware of this engine so all can benefit. It can be used for lawnmowers, tractors, emergency generators, etc. I really dislike changing the oil on my lawnmower. We need this engine on the market now!
john brown (4 года назад)
+otm646 Thank you very much for your efforts.
otm646 (4 года назад)
Here is the report on the test program. There are a few schematics of the engine inside. After reading it the video seems to over state the performance of the sterling engine compared to the conventional engine of the time. http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19880018596.pdf
john brown (4 года назад)
The problem is probably not so much the oil companies, we would still need fuel, but just the talk of cars lasting a long time makes the car companies [and their employees] blood run cold, can you imagine how much unemployment there would be if people did not want to trade their 2011 Blooper because it was still running like a new car?. frightening isn't it.
john brown (4 года назад)
+elliotm01 Well don't keep it a secret, tell us all.
slaithe (4 года назад)
+john brown a gift economy
john brown (4 года назад)
+SMGJohn Got any ideas as to which economy actually works?
SMGJohn (4 года назад)
You already got millions of unemployed in your shitty market economy
Omar F (4 года назад)
and why we are not using them yet ?
TheMilitantHorse (1 месяц назад)
Oil's profitable. The benefits of making Stirling engines would destroy a complete sector of American workers, both in mining and automotive. My dad works as a crew leader for a sand mining company that produces fracking sand. If Stirling engines destroy the overall use of gas powered cars, my dad could be laid off and my parents will end up in some financial trouble. In fact, my whole home town will fall into financial ruin, as most people there have their businesses thriving because of the oil industry. Don't get me wrong, I love the idea of a clean powered car using Stirling engines, but the risk of economic loss is kinda a drawback of gas being replaced by Stirlings.
TheFrosty (1 месяц назад)
capitalism
RetroX (2 месяца назад)
Omar F because big oil
o0lBobl0o (5 лет назад)
75 horse power. I had no idea a small sterling could produce that much power. Why are all the ones I see pieces of crap?
Br!an Delta V (3 месяца назад)
Well, this one was literally built by NASA.
TheOriginalMakaaka (3 месяца назад)
Look at the video: "The Stirling Cycle part 1 (Stirling Cryogenics) You will see an extremely advanced Stirling engine with all the extras that help optimize it to be more efficient.
The Eh Team (10 месяцев назад)
Definitely looks like a huge pressure vessel, probably filled with helium, too.
Desmond's Corner (1 год назад)
because most of them are either built in some hobbyist's shop or as a display piece, and because nasa was using a different kind of sterling engine that could be completely enclosed and pressurized
tofiffe (5 лет назад)
Why are we not funding this?
kedwa30 (3 года назад)
+sarowie I would probably power it with propane or with a wood gasification plant. But I'm talking about to use for a tractor. I would not take this on the road without paying taxes by buying gas.
sarowie (4 года назад)
+Bill Johns Nonsense. The striling engine uses any fuel you like. Including "planet destroying fuel". Just not as much as an internal combustion engine. Of course you could use non-fossil with the stirling as well, but lets be honest: The nearest  gas station is selling fossil fuel, so what would I use? A down side of using "nowaday" fuel is, that they contain lubrication additives and other additives, which are pointless when the combustion external. But, lets start somewhere.
Bill Johns (5 лет назад)
Because they can't sell their planet destroying fossil fuel!!
Skubany1000 (5 лет назад)
Heat with accumulator and cool with fan.V8 for more power and we hawe a Stirling car !
navylaks2 (5 лет назад)
The Stirling Engine isn't a NASA creation Stirling was a Scotsman and the engine was designed to withstand high presures in boilers
Brodie Clark (5 лет назад)
im just throwing this out there but if they they wanted us civilians to have this technology we would have it lol seems these days they tell us what we can have or need
brett knoss (5 лет назад)
Has anyone ever tried using a pressure tank on a steam engine (or helium). What if you had a heater expand gas to increase the volume of a cylinder, use the gas to power an engine, then have the engine work as a pump when coasting to create regenerative braking.
brett knoss (5 лет назад)
Your tax dollars at work.
GoogleisTyrant (5 лет назад)
great video, no data....what's that tell ya.
Gabriel Sierra (1 год назад)
Stirling engine data and types are public domain.
kens97sto171 (5 лет назад)
Usually Stirling Engines don't throttle up and down well. Maybe a CVT transmission could help with that. Today I think you would use the Stirling to run at constant speed and recharge batteries in a Hybrid Electric setup... and use the batteries and electric motors to move the vehicle.
Gabriel Sierra (1 год назад)
Yes, I am working in such a project right now. After hurricane Maria, a reliable source for battery charging was paramount.
Traveon VanBuskirk (5 лет назад)
The fact that it would last forever is why they don't exist. oil companies need to make a profit. There is also a way to run cars on water. Try looking up Stanley Myers HHO generator.
Lars Christensen (5 лет назад)
Take this to Detroit and show them, big oil make way!
joey christy (5 лет назад)
I cannot not understand why there are not cars that run these engines today,ther would last forever,I wonder if the original truck and van are around today.
joey christy (5 лет назад)
You are right,this was in the 1980s,why do we not have cars like this today,its just crazy.
Ismail Yakar (5 лет назад)
Now where do we buy this from? tell me about that.

Хотите оставить комментарий?

Присоединитесь к YouTube, или войдите, если вы уже зарегистрированы.