Breakthrough HEAT Engine Is GAME-CHANGING!

[@nilo9456]

As soon as saw the intro I thought "That's a Stirling engine type.

[@TheIgnoramus]

I saved a NASA design from 1983 like this.

[@ronarmstrong835]

I thought it was a Stirling Free piston engine.

[@Mentaculus42]

@@nilo9456 Hiliion goes out of their way to never call Karno a Sterling engine. It does seem to have most of the attributes of a Sterling engine but not exactly like the traditional types. I think it is close enough but others will say no.

[@jeffmcdonald101]

Hi mate. I actually love your content but think for your sake you should change tack a bit. When I originally saw your channel in my suggestions, I thought it was another sham channel immediately because the channel name is basically screaming "I'm AI garbage". Digital engine sounds like a clever name for a content farm. The titles also need to be tamed down. You're trying to bring views but it's doing the opposite, no more "game changers" etc etc. No serious engineering channel does this and you're too intelligent to waste your talent on becoming "one of them". I and any other serious engineers and scientists would block this channel out of principle. I watched anyway thankfully and was very impressed. I don't think you're getting the love you deserve for your effort and am trying to help here mate. Merry xmas to ya buddy.

[@wargamingrefugee9065]

KZbin has entered into an age in which we viewers need to look past the "click-baiting the phucque out of things" in order to find something of merit. Sadly, that leaves us clicking on click-bait titles and thumbnails in the mere hope of finding something worth our time. I'm tired of titles ending in question marks, question marks and exclamation points, and ellipses. It's a title -- tell us what the video is about and be concise. If I want a bunch of hype, I'll deliberately watch some commercials. The above bah humbug aside, Happy Holidays to you and yours. (No, wait, make that "Holidaze". A little existential angst in the well wishing will certainly get my comment more thumbs-up -- got to chase those metrics. >:-)

[@donchaput8278]

Agreed. New subscriber. Great video but I almost passed it by. Was glad to see the number of subscribers and views so that's why I decided to watch. Let the non-dorks click their click bait videos. Us actual nerds are just looking for science

[@nonlinearplasma]

​@@wargamingrefugee9065 the issue comes from the consumer. I paid for a science animation video to be made by a company called SciAni and they explicitly told me to make the title that asks a question. When the companies helping people get scientific content out to social media say this method works best it is difficult to go against the advice when you pay a substantial amount of money for it.

[@turtletom8383]

Yup missed it for a while because it looks like click bait trash,

[@Mentaculus42]

Great review of these engine types. You hit a lot of the major players and additive manufacturing issues. The Karno design from Hyliion was bought from GE. Originally it was planned to ULTIMATELY be used in a semi truck but once the company built some prototype trucks with the Karno and traditional ICEs, they decided to drop the TRUCK projects probably because of the high cost to manufacture a complete truck. I always felt that the Karno’s power to size / weight ratio was unfavorable for a truck. Also scaling up the power output and manufacturing larger versions is somewhat problematic (both from a thermodynamic & an additive manufacturing standpoint). It is possible to get higher thermal efficiency with existing ICEs (55% vs Karno’s ~50%) with a bottoming cycle also. Hyliion is now pushing it as a stationary generator (oil field gas that is normally flared). Maybe the biggest selling point is potential low maintenance due to its helium gas bearing (the working fluid). An interesting concept to add more efficiency to various types of engines is to have a topping / pre cycle (name?) of a high temperature fuel cell. Also a way to employ high compression with a gaseous fuel like methane (low reactivity) is to use a highly reactive pilot fuel like diesel. This concept is being used in various ICEs (trucks and marine). Keep up the great work.

[@Tech_Planet]

Thanks, I appreciate the background info you provided!

[@pa4tim]

You could place the engine from the front to the rear. You do not need the engine bay anymore so it could be a radical different type of car-body design. For instance wider and shorter, or more narrow but higher.

[@krakhedd]

I think pushing the boundaries of tech and practicality are how solutions are identified, whether those solutions are more conventional or more extreme, and "failed" tech often still gives us ideas for the future

[@pirobot668beta]

Stirling 'hot air' engines have been around since 1816...they pre-date many steam engine designs. The 'down-side' to Stirlings is they get their best performance only at certain speeds. For a generator, they are about perfect. NASA has flown them to space on more than one occasion.

[@wargamingrefugee9065]

@2:12 It's wafting electrons. They need to wrap some electrical tape around it.

[@davidl.howser9707]

Before this generation used "Epic" for every new idea.....now it is " Game Changing" over & over & over being "over" used. YAW !

[@beatboxmanandbeats]

Look even this and most other things game changing actually are because you can combine one aspect of a concept with another like the combustion power of a fuel that actuates a piston to make static electricity like a generator but instead of generating use the energy to drive a gear or a chain or a belt and make a somewhat hybrid vehicle.ie all ideas and concepts are good cause they can be interchangeable and could advance other areas think uncle iroh from avatar explaining balance in knowledge like taking some aspects of water and earth bending and applying it to his fire bending.

[@pjakobs]

In German advertising for washing powder, there was a verbal arms race in the 90s. First the product gained an "extra" then "mega", "ultra" and maybe some more superlative. If you need to present something mundane as surpassing something else mundane you need to give it an attribute that shows how much greater yours is, which others will do in turn to their whatever-it-is. None of it changes the game, all of it makes you go "uh, maybe this time, it will?"

[@ryelor123]

2:00 its not Nitrous oxide(N2O) that's the issue. Its oxides of nitrogen(NOx) that are the things produced by high temps in engines. Everyone gets this wrong including wikipedia.

[@kistuszek]

I think for range extenders price, size and weight are the important factors. It can be low power relatively high emission and not very efficient. After all it will only run in a fraction of the time. I think warious kinds of turbines, even steam turbines should be re examined! Since neither start up time nor output variability are a concern. Stirling engines may be failing again do to size and weight considerations. They would be better choice if the car would be mainly operated on fuel, and the battery was only to buffer the power need.

[@snappy452]

Seems like a good idea for the future of cargo shipping

[@4rc-f145h]

You lose all the momentum when the piston changes direction. Turbine generators are mechanically superior for generators.

[@a-fl-man640]

learned about free piston engines in HS in the 60s.

[@gyaviwalls4260]

that motion. almost looks like an elevator shaft! 🤔

[@coachnutt61]

What kind of converter Cadillac converter ain't no wonder everybody steals them! I'm just joshing with you! 😂

[@marchelandersen6839]

very good info

[@jeremyrainman]

Reward this channel people, so many "tech update" channels are basically AI-generated slide shows.

[@bryanst.martin7134]

Cadillac Converter? Try catalytic converter.

[@CamiloSantana]

"*possibly* game changing" - thumb down. next vid.

[@jmckittrick1]

Do you think an hcci linear generator could be coupled with one of these? The idea would be the hot exhaust gas would power the Sterling engine side.

[@xiv3r]

That's insane

[@MrGoMario]

I still think an opposing, 3 cylinder (6 piston) engine is the way to go. That combined with a CVT gearbox which has a single mechanical gear for highway driving. All that turning the front wheels. The rear wheels are powered by one (or two) electric motors with a 20 to 30 Kw battery. The battery can be cheaply charged overnight at home and also 'on the go' when the single gear is engaged for long distance, high speed highway travel...

[@danz409]

i would say the lower than desired output capacity would be worth it. depending on maintance. if there are fewer seals, bearings to degrade and no oil to maintain/change. than yea. it would be worth for small community power production.

[@TheBillzilla]

It's just another type of combustion engine, and so a dead-end. We need better & cheaper batteries ASAP.

[@DC.402]

🔥🔥🔥🔥

[@ismalinkin]

Over engineered Stirling engine

[@planje4740]

- слабо ти је то - има већ _Breakthrough HEAT Engine Is GAME-CHANGING!_ - и много много и боље али и ради _Slavonac izumio stroj za besplatno grijanje_ - индукција //нема мудровања ништа се не троши не гори - само мотор који окреће магнете //али ваљда тако

[@Val_Chillmer]

hahaha nice try that's just 8 Dysons glued together you can find those cheap

[@mikemondano3624]

All engines are heat engines.

[@DevinAWhiting]

Old tech shelved.more to come.

[@madtscientist8853]

Before, i even watch. Is a HEAT engine it is 90% INEFFICIENT you have to put 90% in to get even 50% USEFUL energy out. Why do you THINK you cars ENGINE is SO BIG and the explosion is so HOT. You have to use 90% of the engine to control the HEAT from melting the damn think.

[@Mentaculus42]

They say it is ~ 50% thermally efficient which is similar to a number of ICEs.

[@jjamespacbell]

LCOE will not compete with solar/wind/battery

[@dustinswatsons9150]

Brace yourself the s*** talking comments are coming

[@MUCAV_COM]

Turbine is better

[@Mentaculus42]

The Karno is more thermally efficient than a turbine in that low power output range. Also it is probably cheaper to build than a comparable power level turbine and probably has lower maintenance requirements. Hyliion “says” that it can “easily” run on a lot of different fuels. The irony is that it was GE turbine people that designed it (specifically GE Additive Manufacturing group that are involved with turbine combustors).

[@ryelor123]

True, but I think the advantage of this is efficiency at a lower power-to-weight ratio. Turbines have great power-to-weight but usually aren't that efficient. Something like this would be useful for generating electricity in a remote area where the transportation of fuel is a bigger burden than the extra weight of the engine.

[@MUCAV_COM]

@@ryelor123 We must find more efficient turbine technologies. In addition, piston systems will no longer be produced due to NOx levels.

[@Mentaculus42]

→ Rye That is kinda Hyliion’s latest business model and also burning natural gas that would be normally flared. They also suggest that EV trucks can be “charged” with it using natural gas (because utilities are slow to provide electrical hookups according to Hyliion).