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@marsfreelander5969
4 ай бұрын
i see problems with this and i will list them below 1 overheating of solar panels 2 difficulty to start in winter 3 fouling of system with impure fuel 4 risk of exploding/out of control burning with damage 5 HOW DO YOU TURN OFF MOLTEN SODIUM
@HWKier
4 ай бұрын
I'm old enough to have lived through the era of the disposable blade, single and double-blade razors. My modern, multi-blade is much better. It lasts for months. Going back to the old way seems to me to be a scam. We have gone beyond disposable blades. Let's not go back.
@MrMonkeybat
4 ай бұрын
@@marsfreelander5969 1 Gallium arsenide is the semiconductor that works best at high temperatures, and is protected by an infrared mirror and likely a vacuum gap. The back side could also be cooled by the incoming air. 2 Since when do bunsen burners and gas ovens have trouble starting in winter? This will much more reliably start in cold weather than a piston engine, and can help warm the batteries in a hybrid vehicle. 3 A modern burner combusts fuel much more completely and cleanly than the explosions in a piston engine, there is a constant flow with no moving parts in the way. A piston engine is much more vulnerable to fouling from impure fuel. 4 No more so than any other vehicle with a fuel tank. 5 Like a sodium vapor lamp it is likely contained in a chamber. When you turn off the burner it cools down.
@LoanwordEggcorn
4 ай бұрын
8:15 No there's not only two possibilities. The salt is inside a double walled, sealed sapphire tube. This is an interesting invention, BUT WE NEED TO STOP BURNING FOSSIL FUELS, AND HYDROGEN AT THIS POINT IS A BORDERLINE SCAM. 14:39 The waste heat from regular internal combustion engines is too low energy to be used efficiently this way. Thermodynamics.
@m4rvinmartian
3 ай бұрын
*You should be embarrassed for posting this video.*
@u9Nails
4 ай бұрын
"Solid State Engine" - sounds more exciting words than photovoltaic gas lantern.
@tigerstallion
3 ай бұрын
also not an engine until you strap an electric motor or some form of mechanical output to it.
@mnomadvfx
3 ай бұрын
Exactly. It's not solid state either. It uses a fuel which means it has a liquid or gas component.
@rogerbartley2225
3 ай бұрын
Was going to say Blowtorch Solar Panel, You said it much better 🙂
@HullioGQ
3 ай бұрын
I'll wait to see work in real life cause i have seen enough of Elizabeth Holmes' Theranos.
@amoo1313
3 ай бұрын
Hmm... interesting. Did you mention the fuel that is used? fossil fuel? or Hydrogen? would it in this case not be easier/ more efficient to use Hydrogen cells?
@LaMirah
4 ай бұрын
I'm no photovoltaics specialist, but I worked in a lab at a university where the people next door worked on micro-scale heat exchangers, and one of their projects was related to recovering waste heat from Concentrated Photovoltaic Cells (CPV), a system where a relatively cheap, large Fresnel-type lens diverts sunlight into a relatively expensive, small PV cell. The problem with that is that the cell efficiency was inversely proportional to its temperature, which is why they were trying to match these tiny heat exchangers with the tiny PV cells and use that heat to convert alcohol and plant oil into biodiesel. This engine obviously works at high temperatures. Low-Pressure Sodium Vapor lamps work at about 300°C, and the assembly seems too compact for meaningful insulation, so these cells would be working at high, temperatures, and therefore at lowered efficiencies. I'd wait for independent confirmation of these numbers before believing these are even in the correct order of magnitude.
@AdamMclardy
4 ай бұрын
That’s exactly the issue. This would straight up melt these cells
@drillerdev4624
4 ай бұрын
My first thought was exactly wether this sodium lamp an cell system could be used to discharge excess heat from traditional PVs (improving their efficency) while at the same time obtaining some more electricity out of it. Obviously your lab roommates were smarter than me, so I guess it wasn't doable/cheap enough.
@snorttroll4379
3 ай бұрын
just insulate the photovoltaic cells behind a double window. run cool air through the cell or with a vapour chamber
@asificam1
3 ай бұрын
IF they said 15% or 20% I would be drooling. Modern Thermoelectric generator (TEG) modules are at most 5%, some TEG modules claim up to 15%, but when people claim above 50%, I get red flags. Besides, this thing is competing against Thermoelectric generators and maybe fuel cells depending on fuel quality, so it seems like someone is trying to get people to invest into a hole... not my thing.
@m4rvinmartian
3 ай бұрын
*I mean... a woman invented this dude. You just spent more time pointing out why it won't work, than she did, to make it "work".* This is so stupid, she had to be a drop out to not know the laws of physics says this is seriously impossible.
@vjmappy
4 ай бұрын
99% chance its a scam
@stuartburns8657
4 ай бұрын
I'll raise you to 99.9% scam
@gamingSlasher
4 ай бұрын
but it sounds so good....
@NeonNijahn
4 ай бұрын
It's not even a good one.
@mj8495
4 ай бұрын
What my grandfather said about computers... some ideas are before their time 😊
@JBTeefam
4 ай бұрын
Yep, you said it, "smoke and mirrors." Will be as 'successful' as Solyndra
@slo3337
4 ай бұрын
Where does the heat go? If it is so efficient then the thing would not get hot. But there is a huge flame coming out of one end! I say BS. Total complete BS.
@jasonsilva9091
3 ай бұрын
It's solid state I your using heat your byproduct is cooling So there's still 30% of heat As gasoline burns at 1500° and peeks at 3900° so that's a lot of exercises heat now we need exhaust and cooling Also if this is as efficient as they say most likely it will be bought out and crushed
@sigmacentauri6191
3 ай бұрын
When a geet reactor is running efficiently its exhaust comes out close to ambient air temperature... soaking up heat to run a process can be done.
@sznikers
3 ай бұрын
Its 60% efficient so 40% ends up as waste heat in the form of hot exhaust gases just like in any other combustion engine. I'm not sure what is there that you don't understand...
@slo3337
3 ай бұрын
@@sznikers that's not what the picture is showing
@sznikers
3 ай бұрын
@@slo3337 video says they get 60% efficiency, animation shows hot exhaust gases (flames) leaving tube shaped device... 100% - 60% = 40% here are your flames
@michaelgimenez4032
2 ай бұрын
This would work if thermodynamics would go for a coffee break while this is running...
@AmaroqStarwind
4 ай бұрын
Solid state combustion engine just sounds like a fuel cell with extra steps
@ticthak
4 ай бұрын
BUT- nearly as high efficiency with more robust components, since there aren't currently any solid-state membrane fuel cell designs of large size.
@anydaynow01
4 ай бұрын
Sounds like it is better tuned, more efficient, produces more useful higher gradient waste heat, and doesn't have the headache of storing and transporting H2.
@anydaynow01
4 ай бұрын
@@ticthak Yep and the control systems should be much simpler too so maintenance would a lot less with a longer reactor/generator life. This is quite interesting actually. Use excess renewables to create stored chemical energy, the burn that energy in the reactor for emergencies/peak shaving and seasonal use. I hope they can get it to work at an industrial scale!
@AmaroqStarwind
4 ай бұрын
@@anydaynow01 Fuel cells can be made for multiple fuel types
@geemy9675
4 ай бұрын
but actually has zero similarity because there is no chemical reaction besides the combustion that produces heat. fuel > heat > light > electricity VS fuel > electricity. I don't know how the plan to extract so much heat from combustion gases though near needs to move from the gas to the sodium, so the exhaust gases temperature will be above sodium vapor temperature (260°C/533K) if you want to extract lets say 90% heat you need to have a heat source about ~5000 C/K. It sounds like using exhaust gases in a hybrid car would hardly produce any sodium vapor or only with extremely low efficiency
@antoinepageau8336
4 ай бұрын
Propane camping light check, solar panel check, save the planet, done 😂
@luisrubalcava6331
4 ай бұрын
China just recently released solid state battery EVs for sale so the US government decided to quadruple tariffs on EVs
@Rhiawhyn
3 ай бұрын
@@luisrubalcava6331 Citation needed.
@testboga5991
3 ай бұрын
You forgot the table salt
@antoinepageau8336
3 ай бұрын
@@testboga5991Shoot, I knew i was forgetting something.
@marilynlucas5128
3 ай бұрын
I guess. A propane tank to light up cerium oxide mantle and then use the light to generate electricity using a solar panel?
@WileHeCoyote
4 ай бұрын
I've been trying to conceive of an efficient "fuel into electricity" system for years, so I am also VERY skeptical that you can convert the energy twice and get even close to 80% efficiency. But I hope I'm wrong! I'd love an electric gas motorcycle that can go 1000miles on 4 gallons of gas 😊
@TwoBitDaVinci
4 ай бұрын
yes!!! totally agree
@prophetzarquon1922
3 ай бұрын
Watch out for the ultra-hot exhaust cooking everything within a yard of it...
@heartflame503
3 ай бұрын
@@prophetzarquon1922 there is a heat exchanger at the flamey end .. so the gas coming out will be cooler than your room heater.
@prophetzarquon1922
3 ай бұрын
@@heartflame503 Heat exchanger _to where?_ It dumps it all upward?
@heartflame503
3 ай бұрын
@@prophetzarquon1922 it puts the heat back into the sodium to convert it into light and thus electricity.
@maxpeterson8616
4 ай бұрын
So you get an animation and an explanation. Still seems sus to me. Thermal efficiency claims are unbelievably high. Extraordinary claims...yadayadayada.
@junkerzn7312
4 ай бұрын
So many issues with this thing I don't even know where to start. The pollution alone would be extremely difficult to control. It reminds me of cheap Chinese diesel heaters, actually. * Pollution. There is no way to fully burn the fuel across a swath of power levels. They might be able to fully burn the fuel at a particular power level. * Backpressure from dealing with exhaust products to remove unwanted byproducts. * Efficiency of 60% with a hot exhaust? Not even possible. And 80% combined-cycle? I don't think that's possible either. * The high temperature of the system will greatly shorten the equipment lifespan, let alone the solar cells. * Build-up of byproducts on heat exchanger surfaces. * Multiple conversion steps... another nail in the "efficiency" coffin. The biggest red flag is having multiple conversion steps (fuel to heat, heat to light, light to cell, cell to electricity) and still claiming extreme efficiencies. That gets into "sell me the Brooklyn bridge" territory. I don't think this thing is real. -Matt
@loneIyboy15
4 ай бұрын
You forgot the biggest one: Even if the system works, burning gasoline is the worst way to heat table salt. Solar Concentrators, geothermal, nuclear, and even standard power plants would be better served integrating this than cars.
@mnntropy5615
4 ай бұрын
Similar to my first thought: How hot do those EV cells get exactly? And how efficient are they at that temperature and how long do they last at that temperature. Too many steps and energy conversions. Buildup of byproducts reduces efficiency fast. I know, for the fuel that is not burned in the first combustion, we could just add an afterburner for additional thrust out of the exhaust. Hey, it works for military jets, so why not here.
@slom2529
4 ай бұрын
Jet car lmao
@MrMonkeybat
4 ай бұрын
A modern burner for an external combustion engine consumes fuel much more completely and cleanly than the explosions in an internal combustion piston engine. A generator for a plug in battery hybrid vehicle does not need a variable power output.
@mitchellcouchman1444
4 ай бұрын
As soon as I heard the efficiency figure I was like this is BS. Any basic understanding of how complex a jet engine is and you just laugh. You can't just have, "combustion", you need a compressor or to used a compressed oxidant (a rocket). The compressor alone robs more energy than he says will be lost in the full cycle. Lastly how on earth will you cool it enough for most of the energy to not be lost as heat?
@SilverTreasures
4 ай бұрын
I feel like we’re going in circles. Burning something to make energy from a solar panel to charge something … uhhh
@YoutubeWatcher264
4 ай бұрын
And claiming it is at most 80%. LOL
@snake10566
4 ай бұрын
@@KZitemWatcher264 That's my issue. There are many steps here, each with losses.
@dianapennepacker6854
4 ай бұрын
For 10 kw per gram? (It looked like they listed under 4 liters in a graph. So volumetric is great unlike Hydrogen) That is on par with the best therotical batteries max potential! Lithium Air is said to be able to hold 12,300 watts per KG. So yeah. That is outstanding! I've already said TPV cells are the future. Or a part of it. For some applications. MIT just made some that capture heat at 2,000 celius, get better with more heat, and have more than 45% effiency. Basically the same as our best turbines! I say the future as in... The future is TPV cells plus nuclear or in ten years fusion! Sadly... I am super skeptical. Feel like the DoD would be on top of this. Just use sapphire... Oh yeah that is a great choice. So plentiful. Pretty cool if true, and I bet a ton of applications could benefit from this. TPV cells need more research. We waste so much heat, and potential energy. Having a part that captures that into electricity with no moving parts is a game changer for at least industrial purposes.
@2ndfloorsongs
4 ай бұрын
You left out the part where it burns green methane from whales.
@FLPhotoCatcher
4 ай бұрын
@@dianapennepacker6854 Actually, an ideal use case would be to power a house using wood as fuel, and use the waste heat to heat the house in cold weather, and heat water in all weather.
@antoinepageau8336
4 ай бұрын
The only legit science in this episode is the shaver.
@BillHustonPodcast
4 ай бұрын
Haha! Only the advert here is truthful! 😂😂😂 💯%
@greghelton4668
4 ай бұрын
Actually the idea itself is solid, pun unintended. The fuel source would have to be really clean to avoid soot buildup. There might be applications where such a pin energy source to convert fuel to electricity is useful. Ships, big rigs, planes, etc.
@MrLardobutt
4 ай бұрын
those are legit, i want to get one of those, but damn they're expensive, but built to last
@loneIyboy15
4 ай бұрын
@@greghelton4668 If the idea works, then burning stuff to make electricity would still be the least efficient way of using it. Because at that point, really anything that heats up the salt is enough. And at that point, you may as well use a solar concentrator or something.
@Sekir80
4 ай бұрын
@@loneIyboy15 And said solar concentrator would be running on "free" energy, which is way better than using a fuel. But that's stationary power generation. This one is intended to move things, I guess.
@willabyuberton818
3 ай бұрын
It takes a long, long time to make a reputation, and apparently 15:13 to break it.
@gastonpossel
3 ай бұрын
The exhaust gases carries out energy from the system in 3 forms. 1) Sensible heat, expressed in the temperature of the gases, which the thing will try to recover as much as possible (but no chance to recover fully), 2) Latent heat: any fuel with hydrogen content mixed with air and burned will produce water molecules, and there is significant energy absorbed just in the process of water vaporization (not stored in temperature but in the gaseous state), and this latent heat will be lost unless we have a condenser, 3) Kinetic energy of the outgoing exhaust gases, which could be partially recovered with yet another device, a turbine. I see too many conversions needed to even considering a 60%+ efficiency.
@mikedunn7795
Ай бұрын
Yes,the first thing I thought of when I clicked on it was you would be dealing with the production of hydrocarbon exhaust,ie CO,CO2,etc
@bigbasil1908
4 ай бұрын
A pulse jet engine is a solid state internal combustion engine.
@Sekir80
4 ай бұрын
I have WW2 vibes. :D
@jef_3006
4 ай бұрын
Jets (and rockets for that matter) are not internal combustion engines. One side of the engine is open, so the combustion isn't internal
@pilotusa
4 ай бұрын
Pulse jets are not solid state since they have moving parts (the valve flaps which cause the "buzz" in buzz bombs). A ram jet is solid state.
@sockmonkey6666
4 ай бұрын
@@pilotusa Depends on the type of pulse jet. The Lockwood types have no moving parts.
@WarrenLacefield
4 ай бұрын
@@jef_3006 Yes, but this distinction seems almost academic nowadays. A fireplace is where combustion occurs; your chimney flue is where the exhaust goes. Is your furnace a jet or an "internal" combustion engine? Or are neither "engines"? (Producing heat is a form of "work" or is only force/motion "work?") In a rocket, combustion occurs in the nozzle to accelerate the exhaust for thrust as it leaves the nozzle. In an ICE car, the values are simply little doors that open and close for inlet air followed by exhaust. Actually more of a "digital" or step-by-step combustion/exhaust cycle rather than a more analog/continuous flow-controlled system.
@hollismccray3297
4 ай бұрын
Could this work? My sliver of engineering knowledge says 'Maybe.' But I'm really doubting their claimed efficiency numbers. Build one, Let someone else test it, and I'll believe it.
@WolfeSaber9933
4 ай бұрын
That's what time is.
@RockSolitude
4 ай бұрын
Local man discovers engineering for the first time. No, shit sherlock. This is just a concept right now.
@m4rvinmartian
3 ай бұрын
No dude. A woman invented it, lol. This is so stupid.
@sheilaolfieway1885
3 ай бұрын
the whole hishschool dropout thing sounds like one of those 'fake miracle' stories they use for scams.
@TheAnachronist
3 ай бұрын
This video overstates what Lightcell themselves claim as far as efficiency, which is frustrating. The founder of the company, @danielle_fong, tried commenting to set the record straight, but for some reason the KZitem algorithm has hid here reply.
@Berkana
4 ай бұрын
I knew Danielle when she was doing her prior clean tech start-up, LightSail (grid scale energy storage). Unfortunately LightSail didn't beat out the battery tech that hit the market, and they folded. I think her use of "LightCell" as a trade name is a riff off of her old company's name.
@TwoBitDaVinci
4 ай бұрын
wow that's amazing, what are the odds!
@KhattaRapidus
2 ай бұрын
@@TwoBitDaVinci ikr... not scammy at all
@Robert-iy8jx
3 ай бұрын
With all that heat escaping out of the exhaust, it can't possibly be that efficient. Heat is energy.
@Arexodius
6 күн бұрын
I like the idea you pitched at the end there - combining a regular old ICE with the "light cell" - which got me thinking a little. And I think I've come up with a really efficient combined system. Imagine this: 1) You have a solid, time-proven, fully balanced and port polished engine block of choice (let's do a V8) with Speed of Air pistons (seriously, look them up! Just do it!!!), 2) and instead of a traditional starter + alternator combination (which puts a toll on rotating the crankshaft just to charge the battery), you hook a 48-or-higher volt starter-generator electric motor to the crankshaft either directly or indirectly (kinda like RAM's very underrated e-Torque system which you should totally research if you haven't), 3) and after the exhaust manifold(s) you incorporate however many light cells that would correspond to the number of manifolds serving as both heat re-capture devices and mufflers, and you use primarily the light cells to generate electricity to juice up a super-capacitor-bank-equipped car battery (look up super capacitor banks), and use the excess electricity to put torque to the crankshaft using the starter-generator motor - which can also be used for regenerative engine breaking, RPM-matching for super smooth gear shifts, super smooth start-and-stop function along with takeoff torque boost (all of which RAM's e-Torque system already does) - creating a proper hybrid solution, and maybe even configure the light cells to work as catalytic converters while you're at it, just for good measure, or at least put cats in front of them to make the most of it. Running turbos would also really benefit this combined solution as it creates higher EGT's, which would just be harnessed by the light cells. Most of these solutions are already proven technologies that are already in use in various different areas, just not combined together in a factory produced vehicle. RAM's e-Torque system comes the closest, but the electric motor they use doesn't generate enough juice to provide additional torque over the whole RPM range, which only makes it a so called mild hybrid system. But the concept is great, especially if you where to harness the excess heat that's usually wasted out the tail pipe to produce "excess" electricity. All of these technologies put together and tuned in properly would first of all bump up the fuel economy by *_at least_* 50%. And thanks to the Speed of Air pistons you would also increase power and torque from normal combustion by 5-15% with the biggest increase in the low RPM's which is where it matters the most. But you would also *_DRAMATICALLY_* reduce the amount of unburnt fuel, soot and other harmful emissions, which greatly extends the lifespan of the engine oil and the engine itself, and *_completely_* nullifies the point of an EGR (which just kills engines prematurely anyway). And if you have catalytic converters you will have all the exhaust cleaning you would ever need for either gasoline or diesel engines. DPF's would also be moot at that point, along with DEF. That's how powerful just the Speed of Air piston upgrade is by itself. You seriously need to look those things up if you haven't! They truly are revolutionary! I believe that even a crude version of this light cell technology would make a big difference for any vehicle using an ICE, especially combined with some sort of starter-generator motor. The super capacitor bank would *_greatly_* extend the lifespan of whatever battery you couple that with, combining the benefits of readily available quick burst power with a gentler slow paced charging current to greatly reduce stress to the battery. And the starter-generator motor solution picks up the slack in a lot of areas to make it a really smooth driving, smooth shifting, efficient and plenty powerful hybrid platform, especially aided by that light cell solution. Take it for what it is, but I truly believe in a combined solution like the one I describe. A fun tidbit in all this: The germans are developing a water injection system that scavenges water vapor from exhaust gas *_and_* condensation from A/C systems to create a self-filling water injection system. Really clever if you ask me! Properly configured water-methanol/ethanol (or just water) injection systems have some really interesting benefits to both gas and diesel ICE's that you should look up if you haven't. Especially a non-methanol type system is actually really safe. It basically has no downsides, other than the fact that you occasionally need to refill the water tank such a system uses with distilled water. And that's what the germans are currently working around to eliminate as well.
@grkuntzmd
4 ай бұрын
You can install this engine in a rear-engine design and completely eliminate the problem of other people tailgating you.
@AaronSchwarz42
4 ай бұрын
catalytic converters already get 1000 centigrade hot, so a large one built with quarts encapsulated sodium low pressure lamps & tuned band-cap matched photovoltaics could convert exhaust heat energy into HEV traction battery charging while the engine is on, radically improving overall system efficiency or radically lowering fuel consumption
@sammy5576
4 ай бұрын
really good idea. the trouble is... all the light from the inside is lost, and you can only collect light from the edge, you need to heat the sodium without losing it,
@cyberGEK
4 ай бұрын
ENGLISH PRO TIP: Quartz is a crystalline mineral.💎 Quarts are how you buy Milk, 🐮 or in Australia, beer 🍺 😃
@sammy5576
4 ай бұрын
@@cyberGEK what dose English have to do with quatz?
@zaakoc
4 ай бұрын
That's still to cool to cause sodium to incandescence .
@theairstig9164
4 ай бұрын
Cooling an exhaust stream below 100C means liquid water will come out the end not water vapour. I’m not going to explain how much of a problem that is
@jackfrost2978
4 ай бұрын
That finish was great. Trying to efficiently use the remaining energy. Creating symbiotic engines.
@nacoran
4 ай бұрын
I woke up in the middle of the night once with an idea for using waste heat. I googled, and unfortunately, someone had beat me to it (at least in a lab setting, I found a paper on it). Basically you use piezoelectric fins as a radiator, turning the movement of heat from the heat source to the ambient air to generate electricity. Basically it's the same technology that we use to turn thermostats on and off scaled up. Probably would add a lot of weight, so might not be worth it for cars and such, but another way to deal with converting waste heat to electricity.
@jackfrost2978
4 ай бұрын
@@nacoran We often make things overly complex. This video is a good example of trying to keep it simple. i agree that it is very easy to overcomplicate something to the point of any potential benefits being nullified. It seems to me that we are not used to thinking of building simple, efficient, synergetic systems. In reality. Most of our systems are synergetic. In many cases we only go as far as we need to go to get a system to work. Then we get used to working within that system instead of looking at ways to make large scale changes. This seems to be partly the problem of industry.
@EconAtheist
3 ай бұрын
Formula 1 cars have energy recovery systems (ERS) and been doing this sort of thing for at least a handful of years now. Imperfectly of course but they're still pretty amazing relative to 'no ERS'.
@MegaLokopo
2 ай бұрын
Even with this tech, fuel efficiency in cars is never going to be above 1% considering how much fuel is spent getting fuel to your car.
@BeamRider100
4 ай бұрын
I don't think exhaust gas from a regular engine would be hot enough to melt salt and make it glow bright. You definitely raised many interesting points that got us all thinking about it.
@mikeyned690
4 ай бұрын
I was not too impressed with the "Light Cell" until the end of the video when you brilliantly combined it with a normal piston based internal combustion engine. The problem might be in getting a high enough temperature from the exhaust to, more or less, fluoresce the sodium. Anyone interested in working on the idea might want to try an old school automotive mechanics tool called a "vortex tube" to provide an incredibly high temperature air flow to heat the sodium.
@CUBETechie
4 ай бұрын
Can't the vortextube be used directly After the Gas turbine exhaust?
@mikeyned690
4 ай бұрын
@@CUBETechie Anyplace you want to separate hot and cool air that is pressurized a vortex tube is the simple way to go but the tube in this application may need to be made with ceramics because of much higher temps than standard mechanics compressed shop air. mIKEY
@CHIEF_420
4 ай бұрын
@ExxonMobil ⛽️🧂
@MrMonkeybat
4 ай бұрын
Electric hybrid cars need small efficient generators as range extenders so they can have small batteries for day to day driving without range anxiety. Attaching it to a big clunky piston engine would defeat the point. Your typical car engine sends about a third of its energy out the radiator a third out the exhaust pipe and a third to the wheels. If the predictions are right tis will be more effiecient by itself.
@slom2529
4 ай бұрын
Or you know we could scrap the car idea and go for trains, which if we’re talking electric trains, can be at least 100 times efficient as car travel per person.
@wanderingbufoon
4 ай бұрын
fun tangent fact: "this orange light is the superior green + blue screen CGI replacement that Disney used back in the old times where CGIs weren't a thing.
@VPWedding
4 ай бұрын
That’s right. That specific frequency of yellow is so narrow that you can filter it out without changing any of the other colors in the shot. So one strip of film would see the yellow as white, while another would see it as black. And that is how the great mattes for Marry Poppins worked.
@RaptorNX01
3 ай бұрын
i think thats why i got recommended this video. i had just watched steven mould's black flame video, and had previously watched corridor crew's video on it.
@anydaynow01
4 ай бұрын
Combining this with a modern Sterling engine of some kind (like Karno), to make electric power directly from the waste heat would really squeeze the extra efficiency out of it.
@leerman22
4 ай бұрын
It looks like a recouperator to preheat the intake air would be better, if this works that is. Thought you can only get the sodium yellow through electric discharge not just by heating it up.
@RaptorNX01
3 ай бұрын
the problem i've seen across videos dealing with both sterling engines, and also peltier related devices is that there seem to be a loss of efficiency over time. its hard to prevent the temperature from equalizing. and since both really require a large temperature difference on both sides of the device it ends up getting less and less efficient the longer it runs.
@Matt-O117-SV
2 ай бұрын
About 20 years ago I knew a physicist who did government work that needed a security clearance. A colleague of his, a professor I knew, had developed a 70%+ efficient solar system. The patent was bought by a fossil fuel company and is still in a bottom drawer somewhere. To the people saying this is impossible because nothing substantial is left to be invented in this field, there _are_ things being invented, you just don't get to hear about them.
@CJ-uq2fr
3 ай бұрын
isn't the electric motor the engine of an electric vehicle? this is practically just a battery or generator lmao
@Psrj-ad
4 ай бұрын
they would need to keep the solar cells cool too. The temprature of a solar cell greatly effects its efficiancy and at that power density they would definitely need an active cooling solution.
@TwoBitDaVinci
4 ай бұрын
great point
@benbriedis
4 ай бұрын
Maybe flow the input fuel and/or air along the back of the cells?
@javakhtar5339
3 ай бұрын
@@TwoBitDaVinci a Solution to cooling would be to use a clear liquid with the same refractive index of the glass and use a regular radiator and fan setup. Maybe putting it between the PV cell and the lamp with a small vacuum between the lamp and the liquid (in another tube) so as not to cool the lamp
@adr2t
3 ай бұрын
Well in theory, because it would be able to use most of the light coming and there is less over all IR light - they would stay cooler than your sun driven panels would.
@chriseaton1525
4 ай бұрын
If this is actually as advertised, a 1 gal size lawn mower should be available for christmas.
@TwoBitDaVinci
4 ай бұрын
lol yeah... somehow I doubt it but its just great to see that research and engineering is being done on all sorts of possibilities
@CorkyMcButterpants
4 ай бұрын
@@TwoBitDaVinci_"research and engineering"_ hahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahaha
@zolitakacs6306
4 ай бұрын
Heat is accelerating the aging proccess of pv-panels. Ageing is lowering the efficiency through lifetime exponentialy and the heat lowers the lifetime.
@nacoran
4 ай бұрын
I'd think the more efficient you got the conversion the less that would be an issue... you are converting the heat to light, then converting the light to electricity. The more efficiently you do that the less waste heat you have, and on a moving vehicle you could add some air cooling. I think you're right though. Managing that heat is going to be critical. I really didn't get an idea of the scale on this... I know that, with the exception of some low speed concept vehicles you can't power a car with solar panels for continuous travel (day/night issues aside). This is 4x as efficient as regular solar cells... but you'd still need pretty significant surface area for the cells, although obviously you can fold them in ways you can't fold a panel you want to catch the sun.
@mitchellcouchman1444
4 ай бұрын
@@nacoran Sodium will not convert all its energy to light, that's a pipe dream, it will get hot
@m4r00123
3 ай бұрын
I could see it being used as a generator in a hybrid configuration using waste heat from standard internal combustion engine but having it as a standalone power unit doesn't seem viable.
@TheAnachronist
3 ай бұрын
This is real. The principle is well established. But you’re overstating what they claim for efficiency. They don’t claim to be that efficient. @danielle_fong, the founder, made a comment here, but it’s not showing up for some reason.
@jjptech
3 ай бұрын
If the comment was made and deleted… I will immediately unsubscribe and flag this channel. I hope we can find out
@TheAnachronist
3 ай бұрын
@@jjptech I suspect it was an algorithm mistake, not intentional
@johnslugger
Ай бұрын
*An LED is 99.7% "light efficient". Actually an LED is a miracle product that can never be really be improved on and that's rare these days! Theoretically you can make a solar panel with the same 99.7% efficiency as an LED but no one has the right design yet. BTW if you aim an LED at the Sun it does make Electrical energy but only 1% so reversing an LED is out of the question but it's a good place to start! THE SOLAR DIODE PANEL or SDP!!!*
@katanaridingremy
4 ай бұрын
Thank you for providing enough details to know that this is likely a pipe dream. Seems like too much energy would be lost between them different energy exchanges. I’ll wait for the more dense batteries
@rebokfleetfoot
4 ай бұрын
perhaps i'm missing something, but i don't see a recent innovation here, they are lighting a candle next to a solar panel?
@nuclearmedicineman6270
4 ай бұрын
Yea, but.. it's a really bright candle. Surely nobody's ever thought of that.
@Petriiik
4 ай бұрын
it is the small bandgap PVs, which with use of monochromatic lightsource achieve high efficiency.
@WolfeSaber9933
4 ай бұрын
With the panel designed to work with the light coming from the burning fuel.
@rebokfleetfoot
4 ай бұрын
@@WolfeSaber9933 ya, perhaps the way they are optimizing the waveform is an advancement
@nacoran
4 ай бұрын
Yes, but they are tuning both the light and the solar panel to work better with each other.
@byronwatkins2565
4 ай бұрын
pn junctions are inherently thin so that most of the light passes through without exciting electron-hole pairs. The bottom material is mostly reflective so that the light passes back through and generates more electricity. The reflection coefficient is 90% or so. If the reflected light excites more sodium, then a little less than half is emitted toward the photocell again. The rest is absorbed by the heat exchanger surface and converted back to heat. This (sufficiently) hot surface does excite sodium, but it also emits significant blackbody radiation to be radiated away and to heat up the photocells and reduce their efficiency.
@mitchellcouchman1444
4 ай бұрын
Plus all the exhaust heat loss and compressor losses (is not mentioned but is required as this is functionally a jet engine)
@simontillson482
4 ай бұрын
Very true. You could channel the incoming air stream through heat exchanger fins on the back of the PV cells to keep them cooler though, and it would also act as a preheater for the air. Also, these newer PV absorber semiconductors have amazing absorption coefficients - unlike silicon which needs 150 micrometers to absorb most of the light, germanium carbide only needs to be 15 micrometers thick. They will get really hot though, even with cooling, so like others, I really doubt these efficiency figures.
@leifhietala8074
3 ай бұрын
Let's turn the idea around: instead of trying to bump up the magnitude of an ICE's waste heat to light up the LightCell, let the LightCell's waste heat power an engine. The LightCell's exhaust temp is ostensibly a few thousand degrees, not far off from peak temps inside an ICE's cylinder. Harness the leftover heat and let that drive, for instance, a Stirling-cycle generator to extract even more energy from the exhaust heat. If the heat coming out of that unit's exhaust is right, then pass that over a bank of thermoelectric generators - returns there are never great, but no point in just throwing the potential away if there's a low-maintenance process that can extract some good from it. A continuous-combustion system's exhaust gases can be far cleaner than any reciprocating engine and this has potential to push energy extraction well beyond Carnot.
@wjspade
Ай бұрын
The main issue I see with your plan of adding this setup to an existing ICE, is that the exhaust temps aren’t high enough to boil the salt. Exhaust headers can reach 1600° after a hard drive. NaCl boils at 2669°F, so you’d most likely have to reintroduce fuel after the header to heat it back up enough to make the light cell function.
@djp1234
4 ай бұрын
It's another pipe dream that we'll never hear about again.
@slowbro1337
4 ай бұрын
70-80% efficiency... I will only believe it when I see it. Efficiency that high has me doubting its efficacy hard
@jackoneil3933
4 ай бұрын
Thanks for covering this Ricky. As micro-turbine gas-electric generators already are capable of about 70% efficiency, are very compact and simple, why not use them instead combustion photovoltaics? In regards to your concept of photovoltaic ICE exhaust power recovery, I'm thinking that if you were able to recover 50% of the waste energy from an ICE exhaust using photovoltaic generator, you would be recovering about 15% of the total engine thermal losses. Having worked with large Exhaust heat exchangers (stack robbers) to capture waste exhaust heat, but due exhaust restriction and back-pressure reducing engine power, we typically only recovered about 30% of exhaust heat. If similar was the case with photovoltaic recovery, you would only be recovering about 15% of the waste energy in the exhaust stream, and something like a exhaust power recovery microturbine, adapted from a turbo-charger to drive an electric generator might be as efficient and less expensive. BTW: Back in the 80's when I was working for in the Oil and Gas Industry and dealing with HPS and Mulit-Vapor lighting systems, the thought of using high temperature combustion gas to produce combustion based lighting using a multi-vapor tubes for remote off-grid locations occurred to me. I mentioned it to some engineering colleagues, and we estimated the efficiency could be considerably higher than electrically excited tubes but the maintenance, cost and complexities of producing such a system would likely be practical and affordable, plus having combustion sources in flammable environments is not suitable.
@TwoBitDaVinci
4 ай бұрын
great insights Jack, that's interesting especially with your background... cheers!
@jfrjr7964
3 ай бұрын
Quartz is also a great way to filtrate bandwidth of light. Not to say it also has a higher melting point than regular glass. Glass is amorphous which makes it ineficiente to some light wavelengths.
@Larken42
7 күн бұрын
When it sounds too good to be true: it is.
@christmassnow3465
4 ай бұрын
Now I understood the context of bandgap and photoelectric energy. What if we made photovoltaic cells (for roofs, not light cells) with multiple layers of photoelectric materials, each having its own bandgap? The layers would be thin so unused light can be captured by the layer below with the corresponding bandgap. The layers would be laid on a mirrored surface, so light reaching the mirror is reflected again towards the different layers and hence increase efficiency.
@TwoBitDaVinci
4 ай бұрын
yeah, that would be a multi junction cell! Currently the challenge is to allow unabsorbed light to pass through higher layers to lower ones... but yes multi junction cells will eventualy be a thing, and can increase efficiency of solar to north of 40% 2x what we have now!
@larsjrgensen5975
4 ай бұрын
For size constraints this could be a good idea, but every layer is adding cost, for example 5 layers stacked with 5 different bandgaps, could cost the same as 5 normal panels we use today. The multi layer solar cell record is 47-48% efficiency, so only around twice as good as a normal solar cell, but maybe 5 times as expensive to produce depending on how many layers used. The normal cells we use today would still be much more efficient $/watt power then multi layer solar panels.
@zaakoc
4 ай бұрын
@@TwoBitDaVinci Watched this Idea being implemented over the years. Multi layer cells are the future of solar cells. Love your channel!
@zaakoc
4 ай бұрын
@@larsjrgensen5975 As it's adopted the cost of multi layer cells will drop.
@larsjrgensen5975
4 ай бұрын
@@zaakoc Multi layered cells are multiple cells stacked on top of each other. Any fabrication breakthrough of the cells would apply to normal 1 layer cells too. The price difference between 1 layer and multi layer should stay roughly the same no matter how many breakthroughs.
@snapo1750
4 ай бұрын
I realy enjoyed the new style... finaly you start to dig into those projects and not only read the advertisements they make... this explanation was perfect...
@TwoBitDaVinci
4 ай бұрын
so glad to hear it!!!! trust me its a process, one i work on constantly, and your feedback means a lot. thank you!
@MojoRevelation
4 ай бұрын
There's no way in hell they will work with any efficiency. Lighting a candle and then trying to gather a miniscule amount of light energy with a solar panel is the stupidest way to do it.
@BillMitchell-lm8dg
4 ай бұрын
The effieciency lies in matching the band gap of the photovoltaic cell to the narrow yellow emission band (spectral line) of the hot sodium. That is where Danielle Fong, et al., thought outside the box.
@Georgewilliamherbert
4 ай бұрын
Forget the candles. How much power is going through a car engine, jet aircraft engine, or large rocket engine like SpaceX Raptor? Raptor is around 8 gigawatts. If the energy conversion efficiency is the same 80% quoted earlier then that’s 6.4 gigawatts of electricity. California is using 19 gigawatts right as I type this, so about 3 Raptors worth of propellant burn is needed (about 310 pounds methane per second per Raptor, so around 900-1,000 pounds per second for all of California).
@davidpalmer9780
3 ай бұрын
High school drop-out, Ends up going to Princeton, Studies nuclear fusion, Starts a company, Makes an outrageous technology claim... Where have we recently seen this before?
@kirkwagner461
4 ай бұрын
The problem, assuming the claims are valid, is that automotive engines have highly variable power needs. This system seems likely to be tuned to a very specific power output level to achieve its very high efficiency. That is the opposite of what a car needs. At best, in a car, is you use this as a means of recharging a depleted battery array. At that point, this power system is in competition with fixed point public utilities. So instead of comparing its efficiency to a cars IC engine, you should be comparing it to the efficiency of grid scale coal, natural gas or nuclear power plants.
@nathanbanks2354
4 ай бұрын
A range extender for an electric car, plane or boat is still quite useful.
@MrMonkeybat
4 ай бұрын
Most EVs only use a fraction of their range each day there batteries are oversized for range anxiety and those odd trips. A small compact efficient lightweight generator like this would be great range extender for those odd trips so the battery can be much smaller lightweight increasing maneuverability, efficiency and reducing the cost of the electric vehicle without lugging round a heavy complex piston generator like current hybrids do. As the generator in such a plug in hybrid is just used to recharge the battery it does not need to be capable of variable loads at all.
@mitchellcouchman1444
4 ай бұрын
Problem is you're assuming the claims are valid, they aren't
@OlegGolubev_yolo
4 ай бұрын
whole chain sounds extremeley stupid to be efficienty more than 0.3%
@Petriiik
4 ай бұрын
but about which temperatures are we talking about? what is the efficiency of the thermo-photo conversion at different tenperatures?
@orionbetelgeuse1937
4 ай бұрын
most of the energy will be radiated as infrared.
@Petriiik
4 ай бұрын
I read through an wiki article about TPV. Now I think this is just a scam for investors.
@teardowndan5364
4 ай бұрын
@@orionbetelgeuse1937Radiated where? A real implementation of this thing would have the sodium inside an insulated mirror and we do know how to make mirrors for specific wavelengths, practically no IR would get out. Exhaust gasses would also go through a heat exchanger with incoming combustion air to achieve 95+% heating efficiency like a condensing furnace. Intake air can also be routed around the device to pick up any heat that got through insulation. Efficiently heating sodium to incandescence and keeping it there is effectively a 20+ years old solved problem. Seems to me like it is all about how cost-effective, efficient and durable the sodium-PV part of the process actually is.
@orionbetelgeuse1937
4 ай бұрын
@@teardowndan5364 a heated thing radiates energy at various wavelenghts from infrared to visible light. For instance a lightbulb has the filament made from tungsten but the radiation produced is not monochromatic just on the spectral lines of the tungsten. the same will happen with the glass tube and the sodium. It will produce some yellow light but also a lot of infrared. All the energy radiated at wavelenghts bigger than the yellow light for which the panel is tuned is lost because it cannot be captured and the light with shorter wavelengths will be captured but with losses heating the panel.
@SapphireSpire
Ай бұрын
The combustion chamber probably uses a ceramic mesh coated with catalysts, similar to a catalytic converter.
@gwyn.
3 ай бұрын
I'm guessing I can build a campfire and sit my solar panel next to it. Or you know what would be better? Just put it under the sun.
@FrancescMuro
4 ай бұрын
Weichai in China is building Diesel truck engines with over 53% thermal efficiency (World record)
@JohnDir-xw3hf
4 ай бұрын
I don't trust China. They lie too much.
@H0mework
4 ай бұрын
Very interesting!
@jimj2683
4 ай бұрын
I heard that too, but I will not believe it before I seen external independent tests. If it is true it will come to all boats and trucks near you soon.
@leerman22
4 ай бұрын
It also asexually reproduces I bet.
@nathanbanks2354
4 ай бұрын
This isn't far-fetched, since truck-sized Diesel engines are already 40% efficient. You could add a steam engine to convert a little waste heat back into more energy or squirt water into the cylinders. I haven't looked at what they're doing.
@anthonycarbone3826
4 ай бұрын
Fascinating approach and with the right material and engineering it looks doable. The problems are always in the details and the engineering tolerances and efficiencies.
@TwoBitDaVinci
4 ай бұрын
perfectly said and I couldn't agree more!
@moswitch1
4 ай бұрын
The passion and effort you put into your videos is very admirable!
@TwoBitDaVinci
4 ай бұрын
I appreciate that!
@zenhakuden
3 ай бұрын
"In December 2017, the company ran out of money.[2] It cut the workforce down to 15 as it entered "hibernation".[14] In March 2018, the company shut down.[2] An investor cited the emergence of more efficient and cost effective Lithium-ion batteries as the reason for LightSail's commercial failure.[2] Media specializing in startups and renewable energy have described the company as mismanaged. [15][16]"
@zippytechnologies
3 ай бұрын
As a long time owner of a Hyundai Sonata hybrid (before they got cheap) I've been trying a hundred ways to increase range and efficiency. Capturing the heat from engine exhaust just makes sense. Build an adapter that can transfer the heat from engine exhaust and stand up to the environment of a car engine or exhaust system and a way to store the extra energy then you got my vote. Need a car to test it on?
@MauroTamm
4 ай бұрын
Could also be geothermal - all you need is a high temperature for sodium. Bury the sodium PV cells in the mantle, instead of steam generators. But current ones slso need cooling and thermal management. No pv cell can just perfectly function at high temp long term.
@zaakoc
4 ай бұрын
Love the idea. The mantal doesn't get nearly hot enough. Maybe another compound that will glow at a lower temp.
@RaptorNX01
3 ай бұрын
the point of using sodium is it emits light at only one wavelength. so having a special solar cell that is fine tuned to that specific wavelength increases efficiency. using another compound ruins that.
@sebbes333
3 ай бұрын
1:40 This falls apart with the knowledge that photovoltaic cells works SIGNIFICANTLY better when cold, not hot (thermo).
@cesaravegah3787
3 ай бұрын
As an engineer who sweated thermodinamics with one of the best on the field I can tell you that those eficiency figures on any process involving combustion and photovoltaics exceed what is theorically possible, this is either a scam or somebody is really really buying his own snake oil.
@petergerdes1094
4 ай бұрын
80% efficiency?!?! That's literally impossible for an engine using heat energy at room temperature below the melting point of steel. Thermodynamics limits the efficiency to 1 - Tc/Th where Tc is the sink temperature in Kelvin (so 340K) so it would need to run at 1700K assuming literal perfection. That's the melting point of fucking Incnel and beyond that of normal steel. Doesn't matter that it uses photovoltaic as an intervening step. It's still starting with heat energy so thermodynamic limits on heat cycle apply. I'm not saying it's necessarily a scam, but someone (u or them) is definitely using a misleading notion of efficiency (eg they mean the fraction of theoretical thermal efficiency they achieve).
@johnaweiss
3 ай бұрын
Dude, why aren't you patenting your inventions? You invented like five things in this video.
@BansheeZR1
2 ай бұрын
Like my father used to say, "What if my aunt had balls, she'd be my uncle."
@ryetoaster
3 ай бұрын
I gotta admit I came into this video a total skeptic ready to tear this idea apart. I will say that the idea of converting heat to monochromatic light and then using a tuned photocell to convert it isnt just clever its a potential paradigm shift. Weve been boiling water to make electricity for many decades and this shows a path towards a new gold standard. Thoroughly impressed and will be watching this technology. Its even bwtter than the thermoacoustic solid states i had been studying earlier.
@tsbrownie
2 ай бұрын
ANY contamination in the combustion chamber would lead to different wavelengths being created and loss of efficiency. ANY inefficiencies in combustion (change of incoming temperature, change in air pressure / altitude, humidity, ....) would result in deposits on the glass cutting efficiency. Etc. There have been many proposed propulsion mechanisms that rely on super pure fuels (ex: fuel cells) that fail because of costs, contamination, inability to maintain the purity over time/transport, etc. It MIGHT work, but only after massive engineering inputs ($$$s) and only in very specific applications.
@ManWithBeard1990
3 ай бұрын
Moving parts are what makes the internal combustion engine exciting.
@hellcat1988
3 ай бұрын
Electricity by Theranos...
@Ian_Burt
3 ай бұрын
A really big problem I see here is that the best photovoltaic cells are only about 25% efficient and those are very expensive, most common cells are only about 15%-20% efficient. So it doesn't matter how efficient your combustion is so long as it is reliant on photovoltaic to produce the output usable energy. As far as quantum dot photovoltaics goes those are a long way from being usable in the real world and certainly from being anything produced on scale.
@RReese08
3 ай бұрын
I’m no expert, but I see more questions about this system, many of which have been brought up by other commenters. My first thought is its thermal footprint, which, to me, seems counterproductive to what it claims to aspire to as a producer of efficient, clean energy. Second is, how is the sodium - salt - being carried in what form and how is it being managed. Do you just run down to the store and pick up a ten-pound bag of salt, dump it in the system and it takes care of the rest? Then there’s the primary fuel - regular gasoline or other things like hydrogen. The consumer or end-user will have to maintain and manage that. And with this system you have two sources to always worry about, which seems inconvenient. I’m no chemist, but if hydrogen is used and combusted with salt, what are the resulting products? I did a quick Google and, if correct, the result would be nitric acid, which was a component of smog - as nitric oxide - when motor vehicles used leaded gasoline and before catalytic converters. I may have the wrong information, but this doesn’t sound good. Other commenters call this a scam. I say it’s more like a new Theranos in the making. It promises much, but doesn’t appear to be anything there when you look past the hype.
@peterweller8583
3 ай бұрын
Fish do you smell it. Buzz words 70- 80% efficiency that smells. Magik
@tallisman57
3 ай бұрын
Nobody ever seems to factor in energy used not to propel a vehicle but cabin comfort... In EVs you spent a lot of energy in the North just keeping the cabin warm enough to be comfortable. In the South we do it to keep cool... You should work on the 20% loss to warm the cabin... And also to use it to cool the cabin much in the same way you use a propane flame to make a refrigerator/freezer!!! Or creating fresh water straight out of the air... Which is good for still even more parts of the planet with scarcity of portable water!!!
@isaacmurray8490
3 ай бұрын
9:33 two things come to mind here A) one is a product the other is a company or B) Lightcell is the research company to improve the patented product.
@Gwalchgwyn
3 ай бұрын
The moment you said "photovoltaic", you debunked the efficiency claims by a margin. That was quick. Thanks for saving me the time to watch the rest.
@beans9647
4 ай бұрын
I do love the thought of merging it into a traditional combustion engine. Even if the efficiency gains are too small to contribute to forward motion, it may at least be able to replace or at least supplement the alternator, freeing up some load on the engine and being able to reap the benefits of that extra efficiency with minimal effort, possibly easily enough to be swapped into existing ICE powered cars. It would also mean, depending on how much heat is absorbed, that your cooling system doesn't have to work quite as hard when the battery is being charged from this system.
@energyeve2152
3 ай бұрын
I love learning about different technologies! Thanks for sharing this and making it easy to digest. Keep shining ☀️
@TwoBitDaVinci
3 ай бұрын
Thank you! Will do!
@Jupiter-rs4zl
Ай бұрын
Strap a solar panel to a blowtorch and your done. Thats the entire solid state engine.
@billharm6006
3 ай бұрын
1) Why do you call it "internal combustion?" Similar combustion zones in a Stirling engine are referred to as "external combustion." 2) What happens to the chlorine once it is freed from the sodium? Does that become a new emission hazard? Is there a sodium/chlorine "reunification and recovery zone?" It seems that managing that hazard would require additional inefficiencies. 3) The push away from gasoline is centered around carbon dioxide emissions (yes. there are other undesirable products as well). While external combustion does not have the same chemical reactor consequences as internal combustion at higher temperatures and pressures does, it has all the carbon dioxide. Improved efficiency reduces emissions per unit of output energy, but does not remove the principle reason for the move to "alternative" energy production means. 4) Your brief hydrogen reference seemed to omit reference to reformer energy losses and emissions. Methods other than reformers, methods such as direct electrolysis, are possible, but are also quite costly in energy terms. I know of no method for producing hydrogen that does not use more energy than hydrogen and oxygen give back when the water is made. Once the hydrogen and oxygen arrive at the fuel cell, the efficiency is fabulous: The fuel cell process bypasses the thermodynamic limits of the Carnot cycle. However, the process of creating the hydrogen is the Achilles heel of the "hydrogen economy". 5) Speaking of Carnot efficiency, how does this "engine" bypass that thermodynamic limit? Any time heat transfer is involved, efficiency suffers. 6) The regenerative heat exchanger is a good idea (certainly improves Stirling engine efficiency). However, 100% recovery is nowhere near possible. 7) I'd be willing to bet that component robustness will be a significant challenge. All that said... very interesting indeed.
@locker1325
2 ай бұрын
Alright, this is the one. Finally, the perfect power source. I'm exercising my check writing hand
@surferdude4487
3 ай бұрын
FYI: Internal combustion engines are nowhere near 40% efficiency. for starters, about 66% goes straight out the tailpipe in the form of heat2% to 5% leaves the combustion chamber as unburnt fuel (if this were not the case, your engine would detonate instead of burn the fuel, causing damage). About another 12% of your energy is lost in heating up the engine and must be eliminated by the cooling system. Then there is the friction of the rotating assembly and valve train. another . If you get even 20% of the energy in your fuel out as useful work to move the vehicle forward, that's a really good engine. This is why battery electric cars with 92% efficiency or better can get around 300 miles range with the energy equivalent of about 3 gallons of gas in the battery.
@NeoIsrafil
3 ай бұрын
Honest to god, swear on everything, I haven't been paid for this or anything related to them, in fact....i PAID them 80 or so dollars for their razor, the just...regular angle? medium? something like that...its just their standard one they had about 1-2 years ago. It is hands down the best razor i've ever used in my life. Any time they sponsor a video I make sure people know that it is SO worth the money you pay for that good of a shave. You wouldn't think it would make such a difference, (angle precision and blade depth)...but try it, it does, and the best part is replacement blades are SO dirt cheap that if you wanted you could change blades every couple days and still save money vs a "modern" multiblade razor burn creation device. ^_^ oh, i should also mention, i've used multiple brands of multiblade razors over the years, shick, gilette, etc, i've used straight razors, i've tried other safety razors, but nothing came close. closest was probably straight razor, but stropping is a pain in the arse. If you dont know how to, you may want to look up "traditional wetshave" technique, because that's what you're supposed to do with these to get the most out of them. You'll still get a good shave using barbasol, but if you want to know what its supposed to feel like buy good shave soap and do it right. It's a joy.
@Darwingreen5
2 ай бұрын
this sounds like an idea that's almost good enough to work, but will get bought out and mothballed within a few months.
@ncdave4life
3 ай бұрын
A problem is that sodium won't emit 589 nm light unless it gets much, much hotter than you can achieve by harvesting waste heat from an engine. Sodium vapor lamps work by heating it to well above 1000°C. That's why they need to use quartz or sapphire: those temperatures would melt glass and copper. (Even quartz is marginal.)
@artlewellan2294
4 ай бұрын
I've helped achieve several energy conservation goals based on the principle of "Less is More." My 40-hour work week occupation in the 1980's was to reduce Household energy consumption with insulation and more efficient appliances. Thus, average homes today are cleaner, more comfortable, healthier, safer, more sturdily built to last as well as more energy efficient. Less is more. In the 1990's I transitioned my energy conservation efforts from housing to transportation; travel, transit, transport systems. I conclude the EV with the most potential to reduce fuel/energy consumption, emissions AND insane traffic is Plug-in Hybrid PHEV tech based on the same principle, "Less is More." All-battery BEV and hydrogen fuel cell EV tech (and I suppose this solid state transport system device) as well are based the idea that we must somehow accommodate more senseless travel and longest distance transport. More is less. I believe Sodium-ion will replace Lithium-ion for EV battery tech. The main drawback with Sodium-ion is its 20% lower energy density than Lithium-ion. This is not a problem with PHEV battery packs which are much smaller than BEV packs. The ICEngine of a PHEV+H (combustible hydrogen) can deliver at least twice the equivalent MPG possible with hydrogen fuel cell EV tech. PHEVs also make the more ideal and effective match to rooftop PV solar arrays rather than vast field arrays that require long-distance transmission lines that tie to complex regional utility grids, both of which remain vulnerable to power outage. Humanity must learn to live with less.
@saschaganser9671
3 ай бұрын
Having studied mechanical engineering, why on earth would you do a video and not put a single diagram of the carnot cycle in? It`s a thermodynamic engine converting heat into light into work and thus should be able to explained in a carnot diagram. You could instantly see if it makes sense
@frankgarcia8378
3 ай бұрын
Your second story - the one with ~12% conversion efficiency is realistic. Your first one probably wont work: 2.1eV = 590nm --> 4900K. Silica's melting point is ~2000K. What makes it worse is that sodium tends to penetrate the silica, making a glass with an even lower melting point. The final damning point is that most fuels won't burn that hot under reasonable conditions. Gasoline in air only gets up to about 2300K. Even oxy-acetylene only gets up to 3800K. Thermophotovoltaics can work, but not as they propose them.
@pastorharman6920
Ай бұрын
I am neither a physicist nor an engineer, nor do I play one on TV, nor have I slept recently in a Holiday Inn Express. I am not sure about color or monochromaticity, but High-Intensity Discharge and Low-Pressure Sodium lamps operate at 150 to 210C (300-410F) which might be inserted post-catalytic converter for electrical generation. Also, since there is much infrared light energy, I would think there should be investigations into band-gap tuning of Perovskite or other cells. Hopefully, they would be less finicky and more long-lasting than the fuel-cells I've worked with. Anyway to gain energy and reduce pollution is worth a look IMHO.
@alexbastow7915
3 ай бұрын
50% would be insane efficiency but 80 -90 is taking it to impossible levels
@dnxtbillgates
3 ай бұрын
14:20 I think you answered your own question earlier. We'd need the engine to be made out of copper to take the raw heat and get sodium up to temp. As it is we need to cool the aluminum engine blocks to keep them from melting. At these lower temps, you'll need to find a different material to glow and of course the appropriate PV material. You're essentially down in Peltier element territory, and while I've long wondered why we don't strategically strap peltier elements to car engines to recapture heat energy as electricity, I think the overwhelming answer is that you can't put them close enough to the heat to be effective while keeping the engine easy enough to manufacture.
@Philosophic2311
19 күн бұрын
Sounds like a mechanic nightmare. Also what happens when the inevitable exhaust gas buildup obscures the photovoltaic cells? There's almost no way you'd get a 100% burn of gases with no foreign elements especially if it's going to be commercially available.
@moemoney7773
3 ай бұрын
The table salt goes to your high blood pressure for having a NASA rocket tube engine.
@ivandhotmanvilliers3361
3 ай бұрын
Even with lower efficiency this is still a practical technology, the no moving parts and light weight is a big plus. Thanks for the Mesodyne link
@christoffussenegger9377
3 ай бұрын
While I am very, very sceptical about this "Solid state engine", the idea of creating monochromatic light from heat and converting that light with a fine-tuned PV cell is interesting. However, as a heat source, concentrated sun light seems more reasonable. No exhaust means no energy loss due to still warm exhaust gas.
@robertjongen7615
3 ай бұрын
Sodium light has a color temperature of 2200K. This means that the Sodium needs to have this temperature to be able to emit light, (or if electricity flows through the sodium gas in a lamp at a lower temperature 900K, this is a different principle were electrons are knocked out of orbit creating a photon) .The glas tube needs to be even hotter due to the thermal resistance between the combustion chamber and the Sodium compartment. Melting point of Quartz is around 2000K, wonder how they fix that. If you want to reuse the heath from a combustion engine (40% power; 30% low temperature heath from the cooling system ; 30% heath from the exhaust at around 1100K) you need heath of at least 2200K, this is not the case for a combustion engine. In general the higher the combustion temperature the more mechanical energy can be generated. But... there are "no" materials available with high melting temperatures that can be used for (transparent and other)parts. The principle could work but I can't think of a solution to have a colder quartz tube sandwiched between a much hotter combustion camber and sodium compartment, while maintaining a good transparency for the 580nm Photo voltaic cells don't like high temperatures, sitting "close" to the sodium compartment requires a solution.
@Nanobits
3 ай бұрын
I think, we been sitting on the combustion engine for way too long now. To top it off, we are making the engines even more complex with tons of sensors, etc; i mean at this point you have to be a damn rocket engineer to be a mechanic. We need an updated version that minimizes the amount of toxic materials used to run it.
@saltydogg
Ай бұрын
Gasoline is 13% efficient (hydrogen) and 87% inefficient (carbon) and Internal combustion engines are actually powered by pressure, not heat. At 3000 RPM a piston will go from TDC to BDC in 0.01 seconds, it's not possible for 87% of it's energy to be lost as heat in that short a time.
@konekillerking
3 ай бұрын
Unless I missed it, the biggest obstacle to any new combustion process is the type of combustion emissions, where is this considered?
@JumboStiltskin
3 ай бұрын
P sure most of the governmental regulations for reducing CO2 emissions in passenger vehicles target specific metrics denoted in Grams per Kilometer driven - even Battery Electric Vehicles are rated in this way (MPGe)
@dennisgarber
3 ай бұрын
We keep the internal combustion, use the heat to create electric that charges the hybrid battery = 80% efficiency!!! This is not currently being done? If not, this is not a scam. It would be more than charging through the electric grid. Electric grid is very inefficient as is battery charging, until grid electricity is free or near free.
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