How electrical propulsion will change the world | Nikhil Sachdeva | TEDxLondonBusinessSchool
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- Опубліковано 20 сер 2019
- Nikhil Sachdeva's talk will address how developments in electrical propulsion technologies will change the industry, its effects on companies and the environment, and what is needed to make widespread electrical air travel a reality. Nikhil trained as an Aerospace Engineer at Imperial College London, starting his career as an engineer at Rolls-Royce. After two years at Rolls he accepted a place on the Harvard MBA, where he was CFO of the Aerospace and Aviation club, before going on to work for Roland Berger as a senior consultant. Nikhil advises clients in the Aerospace, Automotive and Energy industries, with a focus on corporate strategy and commercial due diligence. This talk was given at a TEDx event using the TED conference format but independently organized by a local community. Learn more at www.ted.com/tedx
Am I the only one who thought that I was going to get a TED on Ion propulsion drive or something?
Maybe. Ion propulsion wasnt even a consideration of mine. I probably dont have the imagination you have.
Same! Then it took a left turn at Global warming. I remember when the whole scam was created.
I was soooo excited man. :/
I was precisely looking for that, after having almost consumed all relevant videos related to Nuclear Thermal Propulsion.
I just watched this to find out what propulsion was, I still don't know but it seems like to be important...thank you man 😊
*Short explanation: Propel = move.* Propulsion is simply what propels something in a given direction. For instance: you use your muscles to propel (move) you forward, backward, or to either side, usually walking, running, jogging, rolling, and or up and down by jumping, flipping or climbing etc. Another example is: a sailboat uses wind to propel it forward. A snake winds it's body back and forth to propel itself. Propulsion is the thing that makes that happen.
A silent Ted talk intro, what a wonderful thing.
Excellent! I’m so excited for the future. I love science💕💪🏿🔥
"The Whole World" You Need to Watch, Learn and Listen.
Respect to you All.
*Good TED lecture:* How do I squeeze all I have to say in 15 minutes?
*This one:* I'll ask you to raise hands, please raise hands if you agree with something obvious, thank you.
Yep these questions were so ridiculous haha
His whole approach is dishonest. Freeze frame at any point in this video, look at the dude and ask yourself “does this look like an honest presentation”. He’s also taking about specific technologies to integrate aircraft, which is different from what he’s claiming the talk is about. You get the impression you’re being sold something. You can see in the mannerisms and the eyes it’s all about the money. Microsoft and Adobe.
Lol.: awesome
Especially the ONE about Your Electronic Devices Microphone Settings.
internally, big aerospace companies are pouring money into this. This is a revolution talking place in the background.
Tesla has purchased Maxwell their next gen batteries have the potential to get past 400 Wh/Kg which is the threshold for use in aircraft. To start out an economic aircraft size of 100 people will do 1500km. There is no reason to seat more than 100 at present as the economic case can be made. Airports could be down sized and city local, tilt fan aircraft taking off in short distance/low noise. It will happen.
Specific Energy density is one metric. Aerospace batteries will need power, discharge cycle, specific density, volumetric density, physical integrity, safety, charge speed, temperature tolerance, ease of manufacture.
We need to solve all of these. This is not an easy problem.
Nice job Nikhil.
Will be cool !
Hi
you must include a slide explaining how a turboreactor works
Anyway keep up the good work
The GeniUS Channel.
Very impressive
This is so weird. I was just thinking of this yesterday. I was wondering why no one was speaking about airplane contributions to global warming.
Good
Fossil fuel trade off in costs would cause some cost in infrastructure to handle the increased volume of passengers if indeed flight becomes more cost accessible. We can however think zero takeoff centered localized airports and of course air traffic control measures.
Crazy I watch this at 1.25 speed and it seems normal
That is true hhhh
thanku...
Ryt
The wireless transmission of electricity to military aerospacecraft is a done deal. I've been watching it in use for over ten years. This removes the battery issue. The military-industrial complex has fleets of tricked-out "hybrid" jet/field propulsion craft using conventional military and commercial airframes retrofitted with field propulsion which permits them to fly much faster, or slower, than untweaked versions. These are also fitted with electronic visual stealth, "cloaking." They can stop in mid-air and disappear into thin air. When in pure field propulsion mode, these vehicles are silent, and often move forward in a rapid series of diagonal jumps. They appear and sound like they are using large amounts of electrical energy to power them. There are a vast number of purely field propulsion craft, both drone and piloted. The drones are generally spherical, while the piloted craft are triangular, "V"-shaped, "boomerang" shaped or disc shaped. I've seen these systems deployed on U-2s, F-35s, F-15s, C-130s, C-5s, 757s, Hueys, Chinooks, Apaches and even an old F-106. Both the field propulsion system and the visual stealth system appear to be using aspects of plasma physics. These craft can be seen at times in the Grand Staircase (Utah) and the Vermilion Cliffs (AZ) National Monuments, and on the north side of the Navajo Res.
If it gets rid of persistent contrails I'm all for it!
Yeah that pesky water, lets ban it.
Very nic
Graphene super capacitor 'batteries' in electric aircraft chasing thunderstorms to charge the capacitors...
The one thing that they should concentrate on are batteries... graphene is the key to making super capacitor batteries that charge within a short period of time... with this technology plus solar, wind, and recovery technologies you could stay in the air 10x longer than you can with jet fuel... a small craft could turn into a long range aircraft.
❤️
All of Tedx You Tube Videos are Your Explanations to Our Future.
Two questions:
(1) how much CO2 is going to be emitted to charge the batteries of e-planes
(2) how will the drained (actually, SEMI-drained - due to the severe restrictions resulting from the nature of the aviation industry) batteries are going to be disposed of? And they are really pollution-capable, at least in their current state.
If we add to the formulas relatively (at least for the Western upper middle class) affordable e-flying cars (certainly requiring far more energy than non-flying ones) we might end up with MORE emissions than we would have had without electric propulsion engines.
One could add a question of the CO2 emitted during the construction phase but I guess producing modern fuel engines is not an environment-friendly process either so here we may, roughly, have parity... if the life-span of the batteries becomes x-times longer than it is now.
It would be awesome to take a 727 and replace the outer engines with electric ducted fans and the internal engine with a special generator
What the world needs is more expensive plane flights not cheaper ones. Shocking but true. In the 1920/30s when they added lanes to NYC bridges to reduce traffic, it just lead to more cars and more traffic. Cheaper plane tickets will lead to more planes and the same amount of pollution. Increase ticket prices and subsidize other tech so people travel less!
Yes, the point is to reduce fuel usage to 0%. The tech is out there, it's just a matter of time.
What about Recycling the Battery Components ,when there ware out?
Thats not a problem.
@@turningpoint4238 I don't think that's not a problem. It's not one today, but if the whole world runs on batteries?
@@swisstraeng It actually gets more efficient and cheaper the larger the scale.
Motores eléctricos y cambio del diseño del avión.
Sounds like the gas/electric hybrid tech taken from auto industry discoveries
Doing the math, an EM drive would take a staggering amount of energy--- far more than all other means of propulsion.
Here I am thinking we are talking about plasma wing tech. Plasma wings will decrease fuel costs and increase speed without sonic boom, coming to an Airport near you soon.
Range anxiety gets a new meaning...
No not really, because there's a gas engine that's supplying power to the batteries.
Thank you for your efforts to improve aircraft propulsion.
however when I read the title I guessed an ion accelerator propulsion perhaps applying the graphene 1.1 degrees shift with superconductivity properties in the accelerator
reaching yelds close to 90%
Shall I see the engine with no entropy within my lifespan?
I am Doctor Magistrale in electrical engineering at Pisa University since many decades and at the course of Machinery we dealth with particles accelerator
I wish they wouldn’t call them “flying cars” because they aren’t cars flying. It’s a whole new thing that should have it’s own name. A better name than flying car.
That's not how jet engine works. The fan in front is not a propeller. The plane goes forward by thrust, burning fuel. The fan provides compressed air for the combustion.
plasma physics is the future
Yesss
Love the electrical propulsion technologies .
Me, too. It's why I drive an electric bike almost everywhere I go. It's faster than cars during rushhour too.
Great information
But I love the smell of Jet A in the morning
The electron rocket. space lab NZ.
He described a fuel cell, an idea that has been around for decades. He then described why it won’t work for aircraft (battery density). Why is this a Ted Talk? I’m starting to think these Ted Talk videos are just clever advertising. In his case it appears he is creating investor interest, in my opinion.
TEDx (as opposed to TED) can get a bit out there.
The problem is that the major portion of the propulsion comes from the high pressure, hot gas creates thrust. The fan is an efficiency move. I just stopped watching this!
Absolutely. You just can't decouple the turbofan and the jet engine.
No. The fan of a modern high bypass turbofan provides an overwhelming majority of the total thrust-on the order of 75%
Material science and battery science is not close yet, plus just take the chaos on the streets/highways and now put that several thousand feet in the air. Finally, weather and traffic control already impact air travel to the point where you spend as much time either circling or slowing down to get a landing slot at over burdened airports. Trying to shoehorn a tech into a complex situation as the single solution is not view the entire problem.
Dan Sullivan Is there a limit on how high a plane can reach?
@@niftyrosa1858 My point is that you cannot substantially increase the air traffic without a new control system costing billions, plus moving the ground traffic to the air only means more things will fall from the sky. Aircraft limits are based on material science and cost.
Dan Sullivan ok so you do agree that it can be achieved but at what cost? Got it.
Dan Sullivan - shut up! You’re one of those people who probably said: “ if man was meant to fly he’d have wings like a bird”. You don’t know what cutting edge science and technology is ready to be introduced tomorrow. The consciousness of the universe is changing, and in the infinite eternal depth of universal consciousness, you don’t know the possibilities, probabilities, or potential of its wonders! So please just shut up!
Adolph Dooley I agree, but I have said that if man was meant to fly, we'd have wings. Meaning flying without the help of aviation.
Why not find ways of extraction of CO2 from the air and finding a use for it?
It is neither impossible nor a bad idea, but it is not cost effective. Collecting and transforming CO2 into something useful is harder than just switching to electric vehicles in the first place.
😊😊😊😊
There is a very real and practical limit to the capacity of li-ion batteries. A chemical limit to the raw electron capacity of lithium.
This spent the whole talk ignoring and omitting pretty real engineering limitations. Most of the talk is a load of manure.
Interested!. 1,000 mn Tonnes = 1bn Tonnes. Did you mean 1 trillion kilo?
I start learn english in August 2019.. I listen it but not understand... Help me
Sounds great but the cost of energy for electric battery power per pound of thrust is extremely high compared to current fossil fuel.
The cost of electricity per unit of energy is cheaper.
"51% working on flying cars" should be reduced to 0% and the funds used to support maintaining/improving trains, buses, roads. The idea of the richest 0.01% getting flying cars/helicopters stinks; the idea of Joe Sixpack getting one is horrifying since the roads are already scenes of carnage thanks to rampant, irreducible stupidity.
90% of accidents are human error. We are talking about driverless cars, flying cars and a billion people have dirt floors , no washing machine, no birth control... Priorities? We laugh at priorities.
Wow really buses are subsidised transport for poor people the reason money is invested is due to profit potential in those new ideas because of there efficiency gains
1000 mn = 1 trillion, since when?
It's about 860 million tones per year. 2% of total emmisions. No idea what time period he was taling about. Since the onset of commercial aviation perhaps.
A billion perhaps.
@@theharper1 Exactly, he says trillion!
@@shahuni repeatedly, so either the slides are wrong, or he's using the wrong word. Either way, it's a lot of fuel that is being used, and being able to save up to half of it would be a great improvement.
@@theharper1 The slides have 1000 mn on them so there is no problem with the slides. I think his tongue slipped from b to t. Anyway, you're absolutely right that the fuel is huge and anything to curb that would be extremely helpful to humanity! No doubt about that...
Interesting! So when is Elon Musk going to build his first tesla airplane? ;P
PlanetSurfer 🤣 u dont watch news often boy
It's all KW... That doesn't change.
If nickle in a battery could be replaced with titanium then a battery could be 75% lighter.
How much lithium is taken out of the land to build electric batteries?
will it ever run out? what's the cost of processing they lithium?
what cost to the environment producing batteries?
don't get me wrong I like the idea of less pollution on your journey but we are not being told at what cost and there has to be a cost? dead batteries is a massive waste also, we never get given this truth?
a scratch across a country is the power line ruining environment? and now wind turbines we are happy with though there towers ruining the view, ask your self can you see any birds flying around on that field the tower is placed?
what cost if there are not if there are no birds, I do not know these answers but I look to see if I can see a bird, and not very often I remember always seeing a bird in every field, we blind our selves to these things as the sale job is improving life? why can't we have both why lose one for the other?
Theres oceans of lithium, literally. Everything has an environmental cost it's just going for the one with the least. Batteries can be recycled. Until recently I lived in an area with many wind turbines they didn't ruin the view at all. The death rates on wind turbines of birds is greatly exaggerated.
@@turningpoint4238 Ok did not know this my friend
@@turningpoint4238 wind turbines are a waste of time. death rates they do on birds, I don't care.
But a single nuclear powerplant can replace many more turbines.
Thing is, we're using uranium, and thorium would be MUCH better.
@@swisstraeng As someone that used to work in the nuclear industry I'm not against nuclear. As long as it's done well (which it is not today) and economic which it is not at all. As for thorium, commercial reactors are probably a couple of decades if investments are made away, everything in the nuclear industry takes an age (the internet makes things look easy).
what wd u expect after decades of global military manouvers and hydrogen explosions
Batteries and draining batteries will not be a problem with plasma physics go ahead and look at the work of Keshe Battrries,
I love tedx
Clearly the elephant in the room is there is no available airspace for flying cars a realisation which killed the idea from inception. The world is interested in commercial aviation,general aviation,light aircraft and helicopters.
lipo 20 % of the power density of gasoline
am i right on that figure ?
Combustion engine peak efficiency of 30%, electric motor peak efficiency of 99% am I right on that figure? Yes I am. This is why electric cars don't only have 20% the range of diesel cars. In all seriousness though, I'd say hydrogen cars are the almost perfect solution since you combine a highly power dense zero emission fuel with the 99% efficiency of electric motors.
@@loukask.9111 Yes, but that electricity needs to be made somewhere. Yes electric cars don't have 20% the range of diesel cars, however, significantly more space is taken by the battery, and so is the weight. When you're driving on the ground, weight is not an issue. But for aircrafts, weight is everything.
Yes.. Close enough for arguements sake.. Keep in mind that the lions share of that power potential is lost in the form of heat. The energy density of fuel is always going to be higher then a battery.. And that fuel will also have a high power potential because the fuel can be consumed instantly (or nearly instantly). When we talk about efficiency of fuels we need to include the waisted power potential lost in the form of heat. Look under your cars hood. The actual part of the engine containing the detonation of fuel is proportionately small to the total area under the hood. Half of your car is made to deal with the heat created.. On the flip side it makes electrical motors easier to manage because heat is the only thing you need to look for.. Elecfrical motors gain efficiency the faster they spin. And there power output is throughout the curve so theres no nedd for a gearbox etc.. But theres not going to be any planes flying folks with our idea of lith-ion batteries.. With graphene ultra capacitors maybe? But batteries are still heavy..
Ok so hybrid not ion thruster
Gonna need a long extension cord...
As much as I like flying cars I don't think that's something humans deserve to have. Anyone can just take a car and flight into a school or anywhere it's too damn easy to do a 9/11 everyday and that's real talk
How about flying pilotless electric aircraft to deliver mass amounts of packages, deliveries and maybe passengers at some point?
It will be great for keeping coal-fired electrical production facilities running. Y'know... since nuclear is no longer an option.
Coal's on the way out, solar and onshore wind are cheaper.
So...you never heard of em drive?
В 2016 году было выделен 1 триллион тонн углекислого газа из-за полетов воздушных судов.
I try to watch educational videos... those CUBE videos tho!!
He seems to misunderstand how jet engines work- the thrust comes from high pressure exhaust gases, not from the fan at the front! The hybrid model may work but needs a lot more development, pure electric unlikely to replace the jet engine due to energy density requirements, would have to be as good as kerosine.
Wrong. Less than 10% of thrust comes from the hot gases. So if we replace the turbo with an electric engine we still have 90% thrust...
GunnarLof I stand corrected! Looking it up, up to 75% can come from the fan...
As do I. 90% was for turbo-props. 75% is more correct for turbofans.
Kerosine mixed with drying agents -
In a word ...not going to happen subs for the navy have that as a stand by
But we use nuclear power.
So a nuclear powered plane makes sense. Just need a tiny reactor for that.
This topic is actually pretty important. But it got sidetracked by one serious mistake he kept making. He showed 1000 million tonnes of co2 emission on the screen which is 1 billion tonnes, but he kept calling it 1 trillion tonnes!
I actually had to Google which was right - answer is 1 billion tonnes of co2 emission by the aviation industry, not 1 trillion
One trillion tons of co-2 gas? What did the actual fuel weigh?
Batteries today are too heavy to be placed into an aircraft
Wrong! They are already in use. Pipistrel have sold many of their electric trainers to flight schools, as have others. The Eviation Alice 12 seat electric aircraft with 1000 kilometre range is about to have its test flight this year.
I thought this was about “Electrostatic/Ionocraft” propulsion.
Klaatu’s spaceship from the original “Day the Earth Stood Still” kinda thing.
Sorry I guess I was hoping for a true Twenty First Century topic.
Hola sergio ramirez
اول كومنت للمره الثانيه ✋🏻😂😂
I do not believe in this for the next 10 years, simply that batteries are too heavy yet. He has got a lot of points right, still.
TeslaAir
Oh just about *tony stark tech*
Nice
Elon musk pitched this to Tony stark in Iron man 2
@@Tazman55x yaa yes
what hes talking about is absolutely impratical. He is assuming his crowd is full of morons. You dont need to be an engineer to know that generators generate friction, reducing efficiency. the only reason it helps in automobiles, is because you use the friction produced by the generator to help slow or stop the vehicle, and generate electrical energy at the same time. It's a win-win. But Airplanes only brake on the runway while landing.....
risk of electric propulsion is higher,once electric motor stop working ,nothing .can compress...conventional lighting up air fuel combine with increased thrust ,like afterburner....But electric propulsion cant do that
You cannot use explosive battery technologies on aircraft... Lithium isn't going to cut it... I've seen fairly large explosions from small cell phone batteries... imagine the same effect on full sized aircraft?
Does this gentleman realize that the power-loss between the generator and the battery is going to happen?
yes he does and it's taken into account.
ترجموااا على العربي
16:02 wrong. You have about a 90% chance of surviving a car accident. An airplane you have less than .0001%
NidgeDFX apparently, you skipped the class on probability and statistics....
Technology grows. Aside from freight...explain why humans will need travel 30 years from now? Singularity coming. VR becoming so real as to be indistinguishable from reality. Holographic interaction so real...why leave your house?
No room for luggage, bring all of your AA batteries.
Batteries still weigh a lot for the energy they contain, he ignores this pertinent fact.
Hybrids of any kind suffer the penalty of carrying around stuff which isn't used all the time. Hybrids are actually a waste of time. Design purely electric and exclude hydrocarbons.
I think he based himself on the futur, let's say batteries will get more efficient, then what he says will make sense.
but for sure, we cannot do much change now, or maybe improve things by 20%.
@@swisstraeng Indeed. He was imagining a future far advanced. How quickly technology will advance is impossible to predict. It's like the weather, the near future is more accurately predictable, the further ahead in time the less accurate predictions become. Thank you for your comment.
Electric.. it is made using coal in most cases and electric transport needs acummulators and it must be utilized.
Social 21 where? maybe in finland, but in majority of all countries coal is the main source. market will decide about in the next years. And we have to be aware that stacks of batteries will have bigger footprint than co2.
@@DzikiMoronHackshieldlol
@@DzikiMoronHackshield About four times a day, I hear the coal trains delivering to either of the nearby power plants. I especially love being woken up by the loud horns of the locomotives at two am or four am!!!
Even with electric cars using fossil fuel electricity they're still much more efficient at converting the energy into movement (think of all the moving parts creating friction). Plus the petrol has to be constantly transported to petrol stations just so you can use it.
Steve Co if you believe in that, ok, invest in that. I dont believe and market will decide. If electric cars are so good, you dont have to convince people to it, future will show what will happen.
*whispering* Hydrogen Motors *whispering*
too much aviation, too much pollution of planes. No taxes on kerozène which is unfair to cars and trucks. First start with clean electricity than with clean cars and trucks, during that time put taxes on kerhozène until we develop electric planes like solarinpulse. Then we will live in a cleaner world.
There are taxes on jet-a1, and this will not stop people from taking the plane.
All you have to change is us, educate people not to take the plane for a 2 days trip.
Either he dumbed down the topic for the audience , or he had idea what he is talking about besides a few slides from a business meeting.
Electric plane and electric flying cars in a short futur?
Weed can make you fly very high, too.
Only in your head 😉
He looks like hrithik roshan
I overheard this in a CVS, 2 young men talking: "We haven't had this level of technology since Atlantis." :) omg, we are doomed.
Maybe they are Atlantians.
Have they disabled comments, or am I the First?
Edit: I am the First!!!
Completely lost me on flying cars. That’s not gonna happen chief
ShadowInTheSky2 Aren't flying cars already a reality.?
@@niftyrosa1858 nope, those are airplanes and helicopters.
@@niftyrosa1858 These can exist, we can make them. But safety? Nah, they can't be safe.
If that turbine comes apart you lose control of if not completely lose the tail empanage which means you are dead.
Turbine fans are still a problem if they come apart and charging ups the chances of electrical fires....
With that said, that's how cruise ships do it.
Also, fuel goes into the wings, in part, to help maintain the center of gravity.
Lots of design challenges.
Probably the direction it's all going.
But something to consider if you are trying to cut down emissions.
Electric batteries charged off the grid, like most people do with their Teslas, use primarily electricity created by burning coal.
Common misconception on the last point. Most electricity does not come from coal (with some exceptions on location). And the Grid is becoming more and more renewable every year.
@@kurtisklein2682 Not a misconception as much as an oversimplification....
@@christopherleveck6835 Well that is often used to argue that Electric cars are dirtier than their gasoline and diesel powered cousins which is false.
@@kurtisklein2682 I didnt say they were.
If we want to go electric, we'll need better batteries. Like, 10 times better in storage density. Then, maybe, we'll use batteries for flying vehicles.