Powering a Car with Liquid Air | Trailblazers | BBC Earth Science

Peter Dearman’s invention has inspired a revolution in the storage of renewable energy. His liquid air engine can already power a car, but that’s nothing compared to its other applications…
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Trailblazers (2022)
Meet the people trying to change the world and help the climate. This includes futuristic farming, plastic bricks, liquid air and more initiatives that have the potential to alter the future.
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[@nicomedia62]

I love British "Garden shed" culture, Last century a lot of invention comes from ordinary people who tinkered bits and bobs in their shabby looking garden sheds in UK.

[@hamfahimkabir]

That's groundbreaking! Love how humble the guy is. ❤️

[@golach420]

I hope he has been diligent with registering patents. People like this deserve to not be ripped off by faceless corporations.

[@lavoltare6307]

Old tech nothing new here.

[@fuzzywzhe]

This is not a good idea. Compressed air is a terrible way to store energy due the the Carnot cycle. It's incredibly inefficient. He wouldn't have wasted so much time on this if he knew more about thermodynamics.

[@adamwilks]

I love this guy! How fascinating. Good luck to him.

[@quintonphelan7542]

We need more ppl just like him thinking outside the box 📦

[@nikako849]

Hvala ti ❤😂❤😂❤😂😂❤🎉

[@sherylcrowe3255]

The next generation of Garage Geniuses!! Einstein would be proud 👏

[@mallenge]

It is an interesting idea. Even concept. But what about the energy involved to actually produce a tank of liquid nitrogen?

[@FrankensteinDIYkayak]

to recover more energy in systems like that often a stirling heat engine is used. they often require extremely tight tolerances and a bit of mathematical design optimization. extremely thermally conductive material not common at hardware stores would also be needed. impressive if he can hold the tolerances in a small shed shop.

[@homercalg]

I watched his twice. Great video and a great idea. really liked this guy.

[@user-es8oo2oh7o]

A Man to be respected. The key is not to concentrate energy but reduce, then the abundance of energy in the atmosphere becomes useable - you have a differential. If you don't gravity will take back the gains you thought you'd made.

[@ichbintupinikim]

Awesome! Thanks.

[@SBTRKT88]

Awesome!! ❤️

[@dec335]

That's an inspiring story

[@carsandcountries4898]

Good man appreciate your effort sir

[@Dancrazyman1]

He is RAD!!

[@larryenglish8900]

also liquid n2 cannot be pipelined, it can only travel in tanks

[@tanhockjun]

Many great invention are from shed~

[@huldu]

It's a very interesting concept and it has been done in the past. From what I can understand the problem is the efficiency, how long can you get on X amount of fuel. I'm sure if more research was spent on it the engines would drastically improve as speculated in the past. However without funding project like this tend to fail in real life, maybe not so much because they aren't possible but rather due to the fact that it cost a lot of money to get the ball rolling. Very few people are true visionaries. Heck, just look at the world today with gasoline driven cars, coal burning etc. There are alternatives(obviously) but getting people to switch to them is another story. Never forget there is a lot of resistance from the old world since there is still plenty of money in oil for example.

[@laharl2k]

no the problem is this doesnt work, this idea is really old, it doesnt work and its dangerous af. what they are not telling you is that that car doesnt have a fuel tank, you need to refill it and use it when you need it, otherwise youd need a 5000 psi tank to store it in liquid form which would make everything super expensive and dangerous. (you dont want to be near a 100psi tank when it explodes, so forget about 5000 psi) also compressing gases is also super ineficient. This is all just green energy wankery, you cant win this on, the laws of thermodynamics forbid it.

[@huldu]

@@laharl2k Ah I see, it's like the condensation scam.

[@laharl2k]

@@huldu yeah more or less. Nitrogen expands no where near as much as water when chaging phase, so just from that point of view water/steam is way more efficient from a power density perspective.

[@HairyNumbNuts]

All correct. Water -> steam expands about 2 1/2 times as much as N in the phase change from liquid. Efficiency is another issue, though (as he says) if you're using heat that's otherwise wasted then that can make it economical but *not* more efficient. The car thing is just a silly demo. However, I personally doubt this is going to make much impact. There are much simpler and cheaper ways to store excess renewable energy inefficiently. Pumped hydro will be one of the major solutions to that, and already is, in fact - the UK has had a huge pumped hydro system running to supplant peak demand on its' nuclear for 50 years. I think getting to name something after himself is the prime motivator here.

[@djisydneyaustralia]

Clever

[@jean-pierredevent970]

It's possible this kind of engine would be on its place in a very hot place with low humidity. so perhaps in Saudi Arabia? Since the engine doesn't get hot, I wonder if a 3D printed plastic engine in 1 piece would be possible ? (maintenance free??) Add a little normal engine on clean fuel. Since fuel engines produce mainly waste energy, that waste energy could be used to keep it all ice free. Then the engine could be used here in Europe too. The advantage would be that nobody would steal liquid nitrogen based vehicles.

[@Kamau2012]

He's self taught? His mind is free to explore the world with less filters.

[@devilforbadcorruptpersons5837]

I HAD GOTTEN THIS IDEA BY MYSELF

[@benjamindees]

For those in the comments who are confused about how the universe works -- the efficiency of storing excess renewable energy does not matter in the slightest.

[@khing7237]

RESPECT that's how you spell it. RESPECT.

[@moosestubbings1853]

Try using the glow plug from a desil engine to heat the fuel up as it enters the piston cylinder through the intake valve, ill bet it gets more pep #WorthATry

[@Ont785]

Expensive

[@craigcullen4171]

Ledgend ! Where’s his obe ?

[@thedubwhisperer2157]

And the net energy efficiency is?

[@compassroses]

And what is the source of energy required to cool N2 sufficiently to convert gaseous N2 to liquid N2? Green energy is fine, but it is not continuously available and could be used to generate green hydrogen.

[@larryenglish8900]

low energy density - how to solve that? how low is it? how far would 20 gallons of liquid N2 carry you?

[@borntraveller007]

Fingers crossed 🤞He doesn't join Stanley Meyer and Tom Ogle😏 Stay safe mate🙏❤ Your attempt at trying to save the planet, hasn't gone unnoticed👍

[@arielhermoso4262]

Born Traveller : What was the "threat" against those "concerned"- which was invented by Tom Ogle?... My frequent advice to those tinkerer, fond of contraptions, etc. : "When you perfected your design/ contraption which was related to efficient energy production- just discipline your mouth, like an undercover spy... A spy slight tounge slippage will resulted in his cover. up exposure- then arrest or "death" was just a matter of time.. Then personally used your invention in subtle, secret way, DONT mass produced- not catching the prying attention of your neighbors, power company, etc... Sensing your end in life travel, informed (textbook advice..) at least 2. members of your family, "obidient & trustworthy", about the "secret" of your contraptions... Again, giving with great emphasis, the importance of secrecy : No talk, NO MISTAKE = LONG LIFE!.. As simple as that!... The non. fading relevance of the saying : "...No talk, NO MISTAKE ; Few talk, FEW MISTAKE ; Many talk, MANY MISTAKE...

[@humanerror7]

like many, I am curious what amount of energy it takes to produce liquid air, why not compare to hydrogen?

[@YTRopp]

How to keep the nitrogen at that low temperature for more than a few hours?

[@devilforbadcorruptpersons5837]

I HAD GOT THIS IDEA OF COLLING AIR CONDITIONING BY MY SELF

[@feezkoh]

Its not you, they are the mad ones. I like what i see here

[@vsvicente]

Is it really energy efficient? I mean - how much would it cost to make 20 km with a nitrogen powered car?

[@richardchung7198]

Since liquid nitrogen is a low energy density fuel, why not make is a liquid nitrogen and battery hybrid? Use the liquid nitrogen to charge the battery and the battery size could be 10%percent of a normal EV. The advantage is the fuel to charge the battery is green and also benefit from a high density fuel source? How about using compress air?

[@jacintocosta5206]

Learn from your mistakes and try again, let's leave the world with the mark, a good mark and this guy has done it! F

[@poopshitcrapwaste]

it's better to have small but practical solutions to big problems than lots of talking going nowhere.

[@golach420]

Only 14 comments and already at least one scumbag spammer has posted in comments. Please report them.

[@madmansk]

another another 5:24

[@fuzzywzhe]

Compressing air to store energy, is a terrible idea. It's incredibly inefficient due to the Carnot cycle.

[@fidelcatsro6948]

Whats the difference between this Dearman and an engine already invented earlier driven by compressed air???

[@BooBaddyBig]

I think his heat exchanger is much cheaper and more compact because he's spraying the antifreeze into air to warm it up. Lightweight and massive surface area.

[@manuellongo4365]

To liquefy air in the first place requires a fair amount of energy and after powering your engine it is exhausted to the atmosphere, right ?

[@BooBaddyBig]

It's a storage medium.

[@arielhermoso4262]

Manuel Longo : Simply imitate the "loop design" system of : ref'tor , freezer, air- con, etc.- and the re. cyling problem of liquid air, nitrogen, etc. - it will be tackled... A hybrid method should be opted: Old motorcycle engine can be used, to runned the refrigerant "compressor" of the subject "liquid air engine" (L.A.E.)...

[@juniyotaxi]

Never passed an exam huh?

[@user-pc2dz3bd3u]

Shame his company went bust. Seemed like a good idea but these days simple ideas need to be funded by expensive patents before it becomes mainstream popular.

[@hazzatihazzati]

How about wankel/rotary engine instead?

[@gangleweed]

I do think this liquefied gas idea is a waste of time as it takes a huge amount of energy to get the gas into a liquid form and store it......steam engines are the lesser evil as they work at normal manageable levels without the problems of liquefication.

[@samsung63]

There is a conspiracy that a guy was murdered for inventing a water powered car, many years ago. Because of the wealth gained from petrol driven vehicles.

[@judybradley9509]

ρгό𝔪σŞｍ

[@MrKornnugget]

Thunderfoot video inbound.

[@Rytis36]

in this house we obey the rules of thermodynamics

[@Sinaeb]

the guy himself says it's not good enough

[@mksmar]

Why every inventor have not colleg degree...🤔 So he is self taught.. 🙂😳

[@tiberiu_nicolae]

Inventors with degrees are called engineers.

[@arielhermoso4262]

Mkc SMAR : According to someone I talked to, for every 10. inventors- average only one (1) was engineering graduate, or 10% of the group... Inventors who were not engineers were not "obstructed" by dozens of principles, law, theories, etc. of engineerings & science- which "flooded" the mind of common knowledge. hungry student.. Sadly, some "knowledge" become a "road block" toward a smooth designing methods... No wonder, many inventors mockingly called the nation education system- as one of "many" govern't. "brain washing" institution!...

[@georgewashington90]

Liquid hydrogen is better.

[@arielhermoso4262]

George Washington : Liquid hydrogen was the favorite rocket fuel of Americas NASA outer space program... Its dual role: Cooling the concerned parts of the rocket, as it travel toward the combustion chamber.. Thus, it was very flameable when a critical temperature was reached... So dont allow your "refrigerant" to reached a " combustion temp're- provide for adequate heat evaporator....

[@maxtes252]

No, we don't need another Hindenburg incident

[@mosesmanaka8109]

When I hear the term "Global Warming" then I have to laugh. 🤣😂

[@Pneubike]

It's too bad it was such a horrible example of the potential of liquid nitrogen.. The amount of opportunity for expansion is minimal, the cylinders get super cooled and it will get less effective as it is used.. The potential for liquid nitrogen is so much more than was demonstated by this project and when you mislead the public by doing things wrong it doesn't actually help the technology.. To properly use liquid nitrogen it is imperative that the gas be allowed to expand as much as possible before being fed into an expansion motor..

[@synupps877]

Why expand beforehand?

[@Pneubike]

@@synupps877 The liquid nitrogen is not actually containing the energy that drives the piston. It is the heat that expands the liquid into a gas that fuels the reaction..If the gas is not given ample time to expand than there's no fuel (heat) available to drive the piston, and it will eventually just be pumping liquid through unexpended; as evident by the massive cloud of vapor that comes from Dearman's car. it's the same principle as running a steam engine, except you can't see nitrogen once it's expanded.. if you just heated a piston once and dripped water into it, the water would quickly cool the piston until it wasn't hot enough to cause a reaction.. The only reason it works is because his radiator does some thermal transfer, but if he truly understood the thermodynamics involved he would be offering the liquid nitrogen a chance to fully expand because nobody can expect much expansion to happen during the fraction of a second of a piston stroke..

[@synupps877]

@@Pneubike Do you think liquid nitrogen could be a good automobile ~fuel?

[@Pneubike]

@@synupps877 yes

[@vindenjohnson887]

*fossil fuel industry car bombs intensify*