What Happens When You Add an Alternator to an Electric Car? Extended Range? Jeremy Fielding 106
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- เผยแพร่เมื่อ 28 ก.ย. 2022
- A follow-up to my Nikola Tesla Video. Can you extend the range? What if you add gears and flywheels? These questions answered in the video! #tesla, #freeenergy, #generator
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Video Notes:
This video is part of a series here
• Discussing Free Energy
Power meter I reference in the video amzn.to/3rgHpTk (affiliate link)
The clip I show at the beginning is from this video but there are at least 50-100 just like it by others.
• Get Free Energy with A...
The video that started this conversation 👉 • Reviewing Free Energy ...
How gears and pulleys work 👉 • How Gears and Pulleys ...
How to size motors for projects 👉 • How To Size Electric M...
👉 Frequently asked questions in the comments.
👉Can you capture the wind energy of the car at highway speeds with a windmill or air ducks etc?
The short answer is no.
Exactly like the alternator, the windmill acts like a brake resisting turning and slowing down the car.
Remember you are "creating the wind" with your motor. It’s not free. If you add a windmill or scoop or "x", it will produce more drag and slow the car. you need more power from the motor to keep your speed. The power needed to spin the windmill will be slightly more than the electrical power created by turning it.
You have to use more energy than you can make like paying $50 to get $28.
👉Why not add solar panels to the roof, hood etc to use the suns energy?
A solar panel would give you "some" energy. But it would also make the car more expensive and heavier. In fact many car companies have tried this and went bankrupt because it cost so much for so little return. Check out this video. • Why aren't solar cars ... It still has to pass a crash test for road worthiness, and buyers may not be willing to pay 3 times as much for a car that only get 1% more miles. I made those numbers up only to illustrate the point. "Current" solar panels don't produce enough energy per sqft to offset the difficulty and cost of adding them to cars. Not yet. It is great for a house because the surface area is huge and houses don't move. Cars park in garages, under trees, and/or may be behind a building or even a big truck in the parking lot all day getting no sun. Millions of engineers are thinking about this problem. No one has given up on making better systems. We are all looking for 5-10% more efficiency that doesn't raise the overall cost too much. Its just the problem is more complicated than this.
👉What if you add a second battery charging one as you drive on the other then switch. If you re-watch the segment where I use the cups to show the flow of power, you will see an example of why this doesn't work. You are literally just charging one battery with the other when the process is boiled down to where the energy went. To simplify, it flows from battery #1 to motor, then motor to wheels, then wheels to alternator, then alternator to battery two. The problem is each mechanism is wasting some power, and because the second battery is a load just like the alternator, you are also running the first battery down faster by some amount that is greater than the energy that goes into battery two. The important thing is the power out of battery one is more than the power needed to just drive the car. It is driving power +charging power! You will get more mileage without this system, and that is why no one uses it. This is very easy to test with a remote control car, an extra DC motor to act as a generator, batteries and a multimeter at home.
👉What if you attach an alternator directly to the wheel instead of the motor?
This concept is addressed several times in the video. Perhaps you skipped around or didn't understand. Watching again should help. Short answer. This is exactly the same problem. Attached to the wheel IS attached to the motor. Even if you disconnect the motor after getting up to speed (because you just want to capture the kinetic "motion" of the car) the alternator acts like a brake quickly slowing the car down. In fact that is what regenerative braking is. The motor acts like an alternator slowing the car down and charging the battery a little. This is covered in the video. Cars already do this (regenerative braking), so adding an alternator doesn't add any benefit. It's just another part that can fail and increases the weight of the car.
Technical corrections
None so far. - แนวปฏิบัติและการใช้ชีวิต
FYI I do in fact talk about regenerative braking in the video! LOL There is a whole segment on it. Thank you for watching!
Put an alternator with a trailer tire on it.
Mount alternator under chassis.
Make a cable that you can lower the tire to the ground for regenerative braking.
There you go. You’re welcome.
It will waste zero energy.
And will create energy.
AND- you can easily add/remove it to ANY vehicle.
@@fastinradfordable You can get regenerative braking without any of this. In fact most if not all electric cars already have regenerative braking! That is explained in the video.
Have a look at heat pumps & see their COP. They still waste energy but they collect more than they waste.
Still hella funny that in today's day and age, its a controversial statement to say: There is no such thing as free energy. Lmao
The hardest part of building a perpetual motion machine is figuring out where to hide the batteries.
😂😂😂😂
or the power cord. 🤣🤣
I know, right? It's really a giant hamster running in a running wheel hidden behind a curtain. That way they can say there's no battery or plugged-in power source.
i just say induction charger
hahahaha ..10000000% agree
I just watched a documentary on perpetual energy. It went on forever.
LOL that got me
That's awesome! Best to you, Esra!
is that the one called; the universe
I think they missed your pun.
Then you woke up in the morning.
Jeremy, I’m a retired sixty year old defense engineer/ 5th Gen warfare tactician…. I wanted to tell you that it was so refreshing to to watch your video . God gifted you with the gift to teach and communicate …. Your are a great engineer and teacher. Keep up the good work pal. I look forward to to seeing more of your videos …
Telling the truth without corruption is a good place to start
God didn't gift him. he just has rare Sense,. Because sense is not common anymore.
There's no such thing as God.
You list your background Like it's Proof that you're so smart. Then you turn around and talk about God, haha. God was only invented to Control other people.
In a world without religion, good people will be good and bad people will be bad. The world with religion bad people will be bad and good. People will do bad things in the name of Their religions or for their Religion.
😂😂😂😂😂
When I was 5 I had a light on my bike powered by a generator. It was like riding with the brakes on. When I was 5 I knew you were right. Great explanation TY.
Man had a bicycle jake brake 😂
In essence you were using the same principle ev's use to brake the car. good old days. was fun to flip the bike over and spin it so fast it burned out the bulb.
leds made a big difference there XD
Jeremy, I WAS one of those who thought about alternator on electric car. I’m so glad I watched this. You taught a 64 years old man something today. Love your channel
Steve, you are displaying integridty here. People will almost always avoid saying that they are wrong, not that you were saying you absolutely thought it an altenator would work, but I digress. Good on you!
I'm 60 and had the same thoughts. Willing to learn and he explained it easily to follow.
I thought of Gasoline Engine and Transmission in the back and a Electric motor in the back The Gasoline Engine will charge the electric Batteries giving it a Thousand miles to the Gallon
@@RaggaRanksHipHop this is how big truck and railroad engines work - gasoline engine attached to a generator and electricity is used to propel electric motors. Though this solution is efficient on big machines, on regular cars you will loose more than what you get.
NEVER give up your dream, If Man can dream it, he Can achieve it.
4:05 "I can input some motivation" 🤣
🤣
As a father, I lost it and approve😂
So Jeremy how does an electric over drive work on a car?
@Richard Autenzio If you look at the Dyno charts of an electric motor, you’ll find that voltage will always be about level (give or take about 10% between 0RPM and the max RPM), but the drawn amperage will climb from a low baseline linearly up until it reaches between 3500 - 4000RPM, then it’ll begin coming back down at a decelerating pace, but the RPM will keep increasing. Basically, to get an electric motor to accelerate from 0 to around 4000 RPM takes a lot of power, but getting it from there to 8000 - 10,000 RPM takes less and less power. In much the same way it takes much more effort to pull a heavy cart from a dead stop to keeping it rolling once it has some inertia, an electric motor takes less energy to maintain or even reach higher speeds than it does to get it up to a lower critical speed. This is why cruising in an electric car at 40 - 50+ mph is much more efficient than trying to drive in the city, even with a similar amount of slowing down and accelerating (say +/- 10mph every few minutes).
could just say hes hitting the accelerator
You sir are an amazing teacher and father! My dad took the time to teach me so many things when I was growing up and I still appreciate it each and every time I accomplish something with the knowledge he passed along. Knowing this makes me really appreciate that you take the time to do these things with your children and pass your knowledge along to your viewers in an easily understandable format. Thank you!
Best explanation of why an alternator isn't a free energy machine. I've tried to tell someone this but i am not a good talker like this guy.
As a teenager some 60 years ago I had a bicycle with a wheel-driven dynamo that powered the lights. It was noticeable just how much harder it was to cycle the bike when the lights were switched on.
i had something like that too. the problem is. those arent made efficient. we are wasting alot of energy to drag. there has to be nrwer version that converts energy better. and led lights use less energy. im sure it can be alot lighter to peddle
I was talking to an engineering student doing a year in industry with us. He did not realise how much harder it was to turn a loaded alternator than an unloaded one when I was talking about the work input during load shedding (power trips off type of change). It was only when it started to get dark at work leaving time in late October that he found his own proof. He rode a motor bike to and from work and when he was leaving he started the bike and let it tick over as he put his helmet on. He then put the lights on and heard the engine slow down, switched them off and the revs picked up again. The next day he came in and told us he had never even thought about the lights using fuel as being significant.
I know someone who decided to add an old dynamo to an ELECTRIC bike. Somehow thought that turning electric energy to kinetic then back to electric was more efficient than simply driving the lights off a battery....
I also had one . Although not 60 years ago. It was a small motor that when touching the tire would produce power for lights .. and yes it did create drag ..
Oh yeah. And that was probably right around an amp. Maybe two amps. EV’s charge around 100 amps.
We definitely need more teachers like you in this world.
Definitely
using child labor....
using child labor....
That's awesome that you take the time to share some of your knowledge with us! Your videos are always well put together, you'd make an amazing instructor, and you seem to be an awesome father to your kids! I would've loved to grow up with a father like you!
You're a gifted man Jeremy, thanks for sharing!
Greetings Jeremy, you have given an EXCELLENT EXPLANATION + DEMO, the sad part is there will
ALWAYS BE those who WILL PERSIST TO LIVE IN THEIR ILLUSION, all the best , and from some of us ALL THE BEST!!!
Man the education system could use more people like you. None of my teachers ever explained things with even half the passion and enthusiasm you do.
Thermodynamics tell us that energy cannot be created out of nothing. Energy changes state but each transformation creates heat losses. Bottom line: perpetual motion machines do not work.
We have to overcome our culture of feeding egos to produce more good teachers. We have a culture that values hurt feelings over facts.
When you realize that youtube can replace public school . . .
Needs more King James Bible in schools.
Tbf the teachers are constrained by time they have to teach the students the basics. Different students have different level of passion for knowledge based on their upbringing. Therefore the depth of the topic needs to be explored by the students themselves in their own time. Their interest for the knowledge can be increased more if their surrounding is constructed to be towards practical use of knowledge which made them see its usefulness in daily life.
This is by far one of the best educational videos i have ever seen
1. He didn’t require let a lone ask you to watch his previous videos to follow along with this
2. Doesn’t make you feel bad for not knowing
3. Explains things simply enough to understand but at the same time does not talk to you like you are a child
Thank you for the video 😁
100% agree, this is a great comment, you’ve said it better than I ever could, nice one 👍🏻
Everything about this video is fantastic, and I only had one question when I got into this after I learned he was debunking myths about energy... and he answered it in his pinned post about regenerative braking. :D
@@UnTamedMustang Not following-- superchargers and alternators do completely different things.
In his Video Description section, he did say "A followup to my Nikola Tesla Video"
I love the way you explain things. You are a great teacher!
I understand there is no such thing as free power or perpetual energy. I just came here to see the explanation and you are spot on. The same way my best teachers taught me. The same teaching style I use to explain things to others. Thank you sir.
I have viewed numerous videos on this very subject and I must say, " You have done the best job teaching about power". I completely get it. Please keep teaching and sharing videos.
I have been working in industrial electronics for 30 years and it is energizing to see great teachers like you. Good job!
Me too and it had the same effect on me. 😎
"energizing" nice pun
I once tried to wire a stand alone alternator to a table saw as a battery charger. LoL it didn’t work. Although I still believe it could.🎉
even with this video people believe on perpetua motion or getting energy from nothing, i read a old book in the '90 about energy, "energy only can be changed, can't create energy from nothing" also is one of the rules of physics
Your kids are lucky to have a Dad like you teaching them these values at such an early age. Well done Jeremy. 👍
you should study up, Hes not smart!
@@brandogeberbin7563 why do you say that? I imagine he'd run so many mental circles around you that you'd get dizzy. I suspect you do your "research" on Fox News and PragerU? Lol
@@bigplanett Fox news? Has nothing to do with my snow plow business for 20 years. Or Ford upgrading the alternators to 390 amps that they put on the 6.7 diesel trucks. or the second mount for the alternator for 2 390amp. Oh wait i was having my alternator rebuilt to that amps before ford made them Adam cole just as stupid as the teacher!
Nothing is for free
@@brandogeberbin7563 another racist dog whistler.
Always wondered about that,but you brilliantly explained the problem in layman's terms..
Thank you Sir....
You can tell he's a teacher, I felt like I was in class watching this. You are very intelligent and your kids are going to be extremely smart with you as their father. Keep up the good work, and keep up the teaching...we all need to learn what we can to keep up with this world, and nobody knows everything. Knowledge is priceless :)
Refreshing seeing a smart person posting relevant information. Yeah, his kids have a great role model.
@Repent and believe in Jesus Christ dude, take that mumbo jumbo to religious channels, see a counselor and get real help. You are obviously sick.
Knowledgeable individual but needs to open up to the possibilities. And sometimes, it might take a lifetime, an example Albert Einstein and many others
@@cruzfernandez4554 the man is sharing his grasp of how all these things work, and that is worth a lot. He is simply describing the practicalities of a system. None of the suggestions he got and dealt with in the video are new, or outside the box, or hold any possibility outside of the knowledge he already has. He doesn't seem closed to "the possibilities" at all.
if it wouldnt extend the range then why are hybrids a proven point that this works? bro said thats why they dont put alternators in them already, but they do, all the brands. it also puts a load on the engine but somehow it extends the range. you dont need all that torque just cuz u wanna go go 0-60 in 2 seconds. accelerating that fast is inefficient in itself. he thinks the electric motor is gonna use more power because of a load, but thats not how it works, the alternator steals energy from the already overpowered motor, extending its range by making it not as powerful. he literally explained it in the gears comparison. half the weight capacity for double the speed, or double the weight and half the speed. its the same concept why electric trucks r gonna require bigger/more motors to haul alot of weight. same concept why a v8 gets less mileage than a 4 cylinder. if you were to limit the v8 to only use 4 cylinders, it would also extend the mileage. thats exactly how regen braking works
I obtained my BSME in 1962 (Mechanical Engineering degree) and I only wish I had had ONE instructor in college, ONE mentor-leader in my industry/job, more than a couple of employees under me later, - that were as adapt in ability and articulate to communicate these basic concepts as you! God has blessed you and your family. Keep it up!
be a better idea to just use solar panels to charge the battery's cause the solar panels at least make direct current which will recharge a battery verse using an alternator which will burn more energy then make to recharge the battery
I've seen so much, experienced so much, in my career. Now I'm seeing a bright young engineer get passed an aging power plant to manage. I see him working so hard and getting burned out. The outgoing manager is about to retire and works from home. This guy doesn't have a mentor to help him transition. I feel really bad because this is not supposed to be how learning a new job should go. There's nothing worse than having to learn as you go with no one to teach and train you. It's like reinventing the wheel for no reason.
@@raven4k998 You can order such a car with Solar panels already: Search for Sion from Sono Motors. They have some more concepts, but they are further away from production.
They already have the manufacturing place sorted out and also have some real cars on the road already.
While it sounds Chinese, they will actually be built (I think, from my memory) in Munich area, Germany.
P.S.: Just saw, despite 45000 Pre-orders! (!), they cancelled the programme... what a shame. But the Company survives and offers the technology to other manufacturers (They have onboard already Scania Trucks and others)
But I really wonder what has happened in the background to make them back down. After all, 45000 Reservation, with pre-payment!, is quite something...
That example with the cups, most straight forward explanation of basic mechanical physics I've seen. I wish I had a physics teacher like you inn high school
Jeremy I love your videos, and the way you are with your family and your mind is amazing. Keep on teaching the world we need you!
You have a talent to teach. I'm an old man having served on Nuclear Submarines as a reactor operator 1962-1966. I am very qualified to make this statement Sir. You have a talent to teach. Please keep it up. BWV
Thank you for your service sir.
You must have neat stories to tell!
@@spideym35i I do, here is one. I have written 150 of them:
Bad behavior
I have an interesting story I needed to write and wanted to share. I served on US Navy Submarines in the early 60’s both diesel and Nuclear boats. I was a Navy trained reactor operator when on Nuclear boats. In the fall of 1963, moored in New London CT there were a lot of anti-nuclear folks that on week ends and holidays would harass us by water skiing as close to our boats as possible yelling obscenities. It’s just like today but 60 years ago and it wasn’t just a few, there were many. Often I was standing topside watch with another mate, both of us armed with Remington 1911 .45’s. We tired of it over time and concocted a plan.
Back then our boats had four sanitary tanks each capable of holding 1,500 gallons of human waste and they were blown with compressed air into the Thames River by the below decks watch during their 4-8 AM watch. Can’t do this today but it was different back then. I told the below decks watch to not blow these tanks to the river until I told them. When these guys on water skis came by we blew them into the Thames river right into their skiing path and they were skiing in our excrement. It personally made me feel better. I won’t
tolerate bad behavior in a man. We are still seeing it today though.
@Bruce Vetter After USS Cole this wouldn't be tolerated today. Each command has some newer forms of deterrents against this kind of "going up to the boat as close as possible" behavior up to and including warning shots. Justified to keep the crew safe. RIP those lost in USS Cole terrorist bombing.
-Also sub vet
@@brucevetter8511 , I can not with certain honesty say I haven’t performed actions I am not proud of on individuals who were demeaning for the path I had chosen. But over the years I have come to learn, and teach, to teach these people differently. When I can, I will walk up to these individuals and offer my hand. And whether they take it or not, I thank them for paying their taxes for I could have a career. And I thank them for exercising their 1st amendment rights that so many good soldiers fought and died for. That usually makes them think about what they are doing.
@Bruce Vetter Thank you for your service! I agree with your assessment. "I concur. The message is authentic." 🤗😎
I didn't know that I was stumbling into a physics, electrical, and mechanical engineering course, but I'm glad that I did. You did a phenomenal job of breaking this down.
Yes, great explanations but that still doesn't answer the BIG question I have in mind. That question is: "Then how do you explain why they even put/use alternators in gas powered cars!? They find it worth it. Why? And why, at least for electric accessories like a car AM/FM radio, wouldn't it be worth it for electric cars as well (with only the way the same basic type of vehicle is powered being different)?"
electric motors use next to no power to turn motors, ever see how small the battery is to turn the motor on a hybrid? not much bigger than a battery for a Power Wheels kids car and the crank amps arent as high. With traditional motors they need spark, unless it's a diesel, to ignite the fuel which can't happen without a big amp battery. If you make a lot of stops and have to start and stop the motor it puts a strain on the battery and it eventually dies. That's where alternators come in, while it may not be effective with multiple motor stop/start cycles-nor will the starter motor last as long- it prolongs the life of the battery until it's internal design is wore out. Most V8s need 750-1000 crank amps or CA. CCA is cold crank amps which comes in play for regions where it gets close to freezing obviously and that's why it's also listed on the battery. When the starter motor is powered by the battery using 12v it uses a small motor and gear assembly with a Bendix actuator and wound magnet to push that little gear to mesh with the HUGE flywheel...little gear moving a huge gear that mechanically turns the vehicle motor until fuel takes over. The time before fuel takes over, which also type of fuel, age of motor, efficiency, etc come into play before it takes over uses a lot of power and this being amps. the alternator is designed to take some of the motor power to replenish the battery close to capacity as long as the system is complete and the battery can accept it. Corrosion will inhibit and make that system work very hard and destroy it over time. Bigger motors need bigger alternators and higher CA capacity batteries because of the little gear to big flywheel ratio like he used in the video, it's a trade off. But in the end it's only as good as the parts and how well they're maintained, much like our bodies 👍
@@krystoffersprague6100 this doesn't tell me anything I don't already know. My point is, even with friction of the alternator belt, they find it worth using an alternator on a gas powered car to charge the battery. An alternator is a belt driven generator.
@@kevine9376 true but it's taking too much power that the electric vehicle can better use to go further, based upon the video presentation. Now maybe if different ratio gears were used to the alternator and is took less revs to generate more current but with a bigger amp system it could compensate but again most electric batteries are massive. Even if it was a tickle, it'd still take more energy to attempt that tickle than to go further...unless breakthroughs in tech allow it to happen. It could be hidden purposely though.....
I have no idea what you do for a living but I truly hope it involves teaching. Well thought out and explained explanation. Well done
" I have no idea what you do for a living" Lmao, isn't it obvious? An electrical engineer you half wit.
Great explanation. Using the cups is brilliant. Of course, the actual proving the energy loss at the end was great too.
Retired Electrical Engineer here. You are an awesome teacher.
You sir, are an awesome teacher. I'm 60 years old now but when I was back in school you would have had my full attention because you make it fun simply by enjoying what you're doing.
I enjoy listening to you.
Everytime ai come across one of tour videos I find your explanations clear & concise, always worth watching 👍
Thank you. For years I've been wondering why they just don't use the rolling wheels to charge the battery. You explained it well. Even I understood it. But I almost missed the message while I was admiring your amazing shop and had to back up the video a few times.
If I had had the benefit of this degree of clarity of explanation in my teens, I might've considered going into physics or engineering, instead of linguistics and human physiology. Hats off to Jeremy Fielding!
Gen electric trains like that exist but not cars try using Jen electric with speech to text ooh it almost got it that time
I have no doubt you *might have considered* it. 😉
But I think it's at least as likely that your lived experience heretofore is inextricably linked to your appreciation for this now.
Linguistics and human physiology 🤣💀😭🤣💀😭
Thank the education system for that they're the ones that's supposed to make us find our passions apparently
Enjoyed your presentation sir. You did well and I appreciate it. You sure clarified alot of things.
I tried to explain this to my kids but they never believed me.
I was a mechanic and I’m also a Ham Operator, both these fields use everything that you are teaching. I also tried to tell them that math drives almost everything. Now that they are in there mid to late 30’s they think they have stumbled on a fact that has been a mathematical reality forever.
Thank you Jeremy for this video. We need more people like you in the world!
so, if you whip your kids, you get more kid power interesting🤣
The best thing. I learned from this video... You love your kids and are teaching them. God Bless you
Most of this I already knew in a basic level. However you thoroughly explained in much more detail with your demonstrations.
A shame we have so few teachers like you. You have simplified a complicated concept to the point a non engineer could understand what you are saying
speak for yourself...I may need to watch this a few times....lol
Great perspective on how you approach the challenges you recieved. The greatest tool against misinformation is education and critical thinking.
And kindness too!
Testing this so openly also displayed a willingness to be "wrong" (in the case of engineering, "wrong" just points to a need to change plans.
So true, and it's the lack of education and critical thinking skills that fuels the growing communities that hold conspiracy theories to be true (science, political, medical...etc.).
@@goodcat1982 That's true. People make outrageous claims, people click to what some nut is talking about and the nut gets paid.
@@goodcat1982 yes, but then a lack of education and critical thinking perpetuates the lie. Most flat earthers don't post fake videos, they just believe them.
Man I love your video!! Such a great explanation of where everyone seems to miss the energy losses between conversions!
You are an excellent teacher! Thanks for sharing your knowledge.
There is not a car manufacturer in the world who would not jump at the smell of improved efficiency. There are teams of dedicated engineers looking for these incremental improvements every day. If the alternator scheme worked, every manufacturer would have implemented already. The explanation in this video was excellent. Good job Jeremy, good job...
Can you explsin why a 600cc motorbike weighing 200kg burns the same amount of energy as a bigger engined car that is 500%+ heavier?
@@richpolecat65276:47
well even if they figure out on how to improve the efficiency...they will hold on that info and sell current tech to its limit before releasing the new tech....its money thing dude...like the predator drone the military use....how far and long it can fly....thats an example the tech they dint offer yet
I learned all about this when I mounted a headlight on my bicycle as a kid. It came with a little friction generator that would run against the side of the wheel to power the headlight.
The amount of drag that tiny little generator caused was absolutely amazing. I could feel it *immediately* in how much more work I had to do to get the bike going or getting any speed with that tiny little generator spinning against the wheel.
You would quickly prefer cycling in the dark 😂
What would be more scientific would be to add a switch to the light's circuit to see how much energy is lost to just the internal friction of the dynamo with the light off versus how much more energy is is needed to when the light is switched on.
@@h8GW Exactly. The mechanical friction does not prove anything. It is all about the Lorentz force.
@@h8GW Yeah, the bearings on the bit that went against the bike tire and the dynamo were usually hot trash, but you could still feel the drag drop off just a bit when the bulb burned out. Adding a switch would still have been a useful exercise in terms of being able to repeat the drag changes many times, to be sure.
I'm 2 mins into watching this video and already every single question I've had about this has been asked. To me (with a fairly solid understanding of rudimentary physics!), these seem like sensible suggestions and I've had literally the same idea Jeremy's drawn out in the diagram already. I'm so glad someone can actually address this, it's been boggling my mind why this hasn't been done already!
ROBSEDIT: Just finished watching now. Every question answered, explained and demonstrated. Things you just love to see!
You sir have taught me more than any teacher I've had ever had thank you for what you do instead of video games these kids need to watch your videos keep it up
I wish every teacher could be like this man. having fun and getting the point across. Amazing person you are.
unfortunately most teachers are white... haha jk jk 😆
@@bobbobbinson1841 so funny
@@bobbobbinson1841 And? Never mind. If you had a real reason for saying that I wouldn't give a crap to know it, or you. 😐
When I was at school, I learned 'energy cannot be gained nor lost, only converted' and 'nothing is 100% efficient'. Knowing these two facts debunks most of these perpetual/free energy type things within moments.
I discovered your channel by chance, and really enjoyed the video. Subscribed :)
Finally someone with a brain. Our universe is entropic.
@Land and Lore Photograph Off Road Adventures e does equal m times c squared our boy Einstein proved that neither can be created or destroyed only converted.
@@bullbutter2931 provided the turbines spinning the generator output more power than the increased power requirements that the reduced aerodynamics of the vehicle I don’t see why that couldn’t be a range extender. I’m betting that it wouldn’t work or else the car companies would be doing it.
@Land and Lore Photograph Off Road Adventures well, in my house we obey the laws of thermodynamics, so it's a no go. :(
@Land and Lore Photograph Off Road Adventures awwww man, stupid physics 🤣😂🙃🙃🤐🤓🤓😳
I was surprised a couple months ago having this discussion with someone. Since this was the first time meeting this person, I didn’t elaborate much other than to say I am not confident it works that way, and made a mental note that this person did not understand these physics. So, to understand these incorrect ideas perpetuate and have this come across my feed as educational tool brought a smile to my face.
Good video. A good example is the old school bike lights that had a spinning power source spun by the tire.
As a science teacher at a local high school, I’m thrilled that you’re showing the answer with real science!!!!! You rock!!! 😊😊😊😊
real science is about experimentation not just talking
A science teacher interested in real science?
Is this real?
I Would really like to know how to calculate how much is lost in each conversion of chemically generated (or would that be converted from what its stored in? Like gas, coal, nuclear?) required to get the energy generated/converted so much more efficiently than could ever be done in the engins under the hood of my car before its finally the electrical energy stored in batteries in an electric car being generated/converted into the mechanical energy required to turn the wheels of that car.
So many steps must result in massive loss. From stepping (transforming?) It to high voltage, or even dc to transmit it from the power plant miles away where it is somehow magically created with ZERO emissions,
Then converted to lower voltage & back from DC to ac at my city's substation so it can fit in my citys lines to be carried close to my home where it must be transformed to yet lower voltage before into my smart meter, then into the car charger Newsome was just a couple of weeks ago was telling everyone not to use because we had a couple of warm afternoons ,
& pg&e shuts off the power every time the wind blows & the grid can't provide what's needed now ,
Because those who have now made gasoline illegal in a couple years (Right about the time Claus has declared we will own nothing. But none of all this is related, of course) they had a duty(an important word to define) to qt least maintain the grid, & If they are going to make laws requiring 5 TIMES the current load (pun not intended) on the grid they had a DUTY to ensure they improve the grid accordingly. & the people have a duty to hold them accountable for being derilect!
But I digress.
So 240vac entered into the home & must be converted to 12 vdc (=LOSS yet again. Is that the 13th loss now? Ive loss track.) to go into the batteries, to be converted into chemical energy to be stored in those batteries where it must be converted back from chemical to electric energy before it can be converted to mechanical energy to turn the wheels.
If only ten conversions/transformations (& rhere are far more) & you "only" lose 10% each time.... when fact is more like 30% loss...must be converted be used
im not book smart i stoped careing in the 4th grade and even i learned about friction do they not teach these things ?my son grade a student dosent understand fluid dynamics this is concerning to be honest
" Would really like to know how to calculate how much is lost in each conversion of chemically generated (or would that be converted from what its stored in? Like gas, coal, nuclear?) required to get the energy generated/converted so much more efficiently than could ever be done in the engins under the hood of my car before its finally the electrical energy stored in batteries in an electric car being generated/converted into the mechanical energy required to turn the wheels of that car."
The fuel you burn in your car has also gone through a series of conversions and transportation in order to become gasoline in your tank. It has to be extracted, transported to a refinery, refined, transported to storage, put in a delivery truck, added to a storage tank at your local gas station, and then dispensed into your tank. Each of those also takes energy (particularly the refinery bit, but the transport bits can also be pretty costly). Then your gasoline engine is about 20-35% efficient at turning the energy stored in the gasoline into motion.
In order to compare that with electricity, you have to really look at the exact source of electricity. Taking natural gas, the extraction process is about as energy intensive as oil extraction, but it doesn't need refining, and converting it to electricity is about 45-57% efficient. From there transporting electricity happens over wires and while it is not lossless, it involves far less loss than trucking liquids. Once it is in your car (charging is another loss, but in the 5% range or less), the car itself is pretty close to 100% efficient at turning the electricity into motion. Of course, there are some losses for heating when it's very cold out, but the gasoline car is better at that only because there is so much waste heat it can be "thrown away" into the cabin - an electric car only has a fraction of those losses when it needs to produce heat.
Electricity can also come from many sources, as electric cars don't care how their power was created - it's all electricity. So you can burn coal, burn natural gas, generate it with solar, tidal, nuclear, wind, or any one of a number of sources. So you can use the source that makes sense locally to generate electricity.
"& pg&e shuts off the power every time the wind blows & the grid can't provide what's needed now ,"
Electric vehicles can (in large part) be charged at times when the demand is lowest and the supply is highest. Other electric uses have a more difficult time moving. So EVs can provide demand when the grid has excess supply (in most places this is at night when businesses are shut down, but in areas with a lot of solar power this can actually be during the day when solar plants are cranking out power). Most if not all EVs can easily be programmed to only charge when demand is low - and if you set electric prices appropriately (Time of Use plans) your EV drivers are going to be the portion of your demand that is the most easily-moved.
@@Loan--Wolf I hear you. I got bored by 4th grade too. It's been carfully designed for that to happen.
THE WRITTEN, OFFICIAL PURPOSE OF SCHOOL IS INDOCTRONATION!
It is NOT Education.
If you have a child in school, you got huge reasons to be concerned. Huge reasons.
Find out what they are teaching (& not teaching) your child. Ask for a written copy of the curriculum. If they try to tell you no, think about why they wouldn't want you to know that. Could it be that you might not like the idea of adults talking to children privately about sexual preference in kindergarden &
1st grade?
That you might not agree with elementary school children being subjected to Drag queen story hour at the school's Library?.
This Stuff is really going on,
&these are the most formative years of your childs life. The people doing this are not stupid! They are DIABOLICAL!
For the sake of your child, & the future of our world,
PLEASE look into this.
If you have a child in school you got reason to be concerned.
This guy should be waaaay bigger. So much information straight out of the gate, no warm up whatsoever. But it's digestible to even someone like me who has no initial interest in the subject. 👍🏻
Great Job Teach!
✊🏻♥️🌟
Fascinating presentation. You have answered a question that has been on my mind for a long time.
That was absolutely one of the best educational videos I have ever watched. You are an outstanding teacher.
I wish I had math and science teachers like you back when I was in school. You have amazingly explained this concept.
....You and Thousands Were Cheated in School and You Don't Even Know What You Missed! ...Happening Each and Everday ...Just Like Energy .. You Loose a Little.... Each And Every Grade!! FACT!!
Me too, Jeremy is awesome. Just met this channel and promptly subscribed.
Same!
I wish that I had had teachers like you when I was a young man. You are very clear, concise and your examples are extremely creative and illuminating. Congratulations!
I needed him when I was an appy mechanic.
@@bryankirk3567 You we’re indeed a very lucky apprentice!
THANK YOU FOR TEACHING THE PUBLIC! A lot of these just don’t know how energy works
Excellent explanation and visual examples. You're a great teacher, thank you for sharing your knowledge and experience in absorbable ways.
This was easily the clearest demonstration I’ve ever seen of why perpetual motion does not work, presented with the same patience and humor as the very best of teachers. I can’t wait to show this to my kids.
WOW !!! if Jeremy had been my teacher in school i could have become anything. i was never able to stay interested for long periods in these subjects you have a talent to make things interesting. gifted to teach.
Hell yeah. I reckon he could delve into & explain the chemistry/physics in EVERY episode of MacGyver...
I had the same thought when I started watching him.
Serious question. I get what you’re saying, but isn’t the variable gravity and drag? And therefore magnetic fields are the solution in some way, shape or form? Our planet oscillates in a cycle… what put that in motion, what keeps that in motion? Perpetual motion is real, we just haven’t figured it out.
Great video though!!!
@@InspectorGroyper What keeps earth going is the lack of resistance in space!
I was fortunate enough to have had not one, but two wonderful electronics teachers in high school (Thank you ever so much Mr. Wright - RIP, and Mr. Conway of Westside Skills Center in Balto. MD.), but wish more teachers, like Jeremy were out there helping these kids THINK, as well as learn. Your children are truly blessed to have you for a father.
I was trying to figure out a way to demonstrate losses in the system when you were moving "power" around with the cups. Your sloshing of water from one cup to another (and thus spilling some) was a perfect demonstration. I may have to steal that.
I appreciate your work jamie,Jamie, for the knowledge!❤
I'm a process/ manufacturing engineer with a degree in mechanical engineering so this is basic for me but I still enjoy watching these video teaching the fundamental of physics in an engaging way to future generations. Teachers like this are one of the big reason why I was so interested in engineering when I was young. Good job sir!
I’m not an engineer so I’ll ask my dumb question. Say you build a light weight alternator that didn’t take a lot of torque to turn. Could you turn it sideways and add a pinwheel on the end of the shaft, then have a wind funnel on the car so it charges when you drive 35 MPH or faster? Obviously this isn’t going to do away with the need to charge but if you build one into each side of the car with intakes and one on the roof it might in theory be able to drastically extend the time needed between charges right? I work in green energy so I was just trying to think outside the box and can’t find an obvious downside to this. What do you think?
@Dustin Bridges The main issue, if you were to do this, would be the added drag from the wind generator/ wind turbine. Especially, for an EV, drag has a huge effect on their efficiency. I haven't done the math on this but I am willing to bet that the increase in air resistance, turning the fan, would out way the energy generated. The only time it would generate more energy than the car is using is when it's going downhill but by that point, you should just use the motors driving the wheels as generators which all EVs do use (regen braking). Hope this answers your question :)
@@ValidAsian thanks
@@dustinbridges6831 ,
May I ask if that is the engineering job you wanted? Or did you have other fields of engineering you were interested in? I always wonder what people want to do with mechanical engineering and have a hard time myself figuring out what I'd want.
You have a very special talent for explaining a complex subject that anyone with a bit of common sense can understand while keeping one's attention. I sure wish there were more folks like you among us.
This shouldn't be complex to anybody lmao.
I agree that he has a talent for explaining the subject, but I disagree that this is a complex subject. It's a lot like buying something with sales tax. Sales tax representing the waste energy. You have $10, you want to buy a $1, and there's 10% sales tax, so it's going to cost you a total of $1.10. Now you have $8.90, not $10.
Then for plugging the alternator into the battery to charge it, you haven't opened the soda and want to return it. Well there's a 10% restocking fee. So you're only going to get back $1.10 minus the 10% restocking fee, which ends up being $0.11. So now you've spent $1.10 and gotten back $0.99. So instead of starting with $10 and having $10 despite returning the soda, now you're 11 cents short, so you have $9.89. You've lost money just by trying to get your money back for an unused product.
Keep doing that, keep buying and returning the soda because we're talking about an engine running an alternator, every moment of time it loses energy, so to extend the analogy to this, you have to be constantly buying and returning the soda every nanosecond. Before you know it, you're out of money. So the motor is going to grind to a halt.
Thank you so much... sooo nice to ear someone with common senses for a change! Keep it up!
Over time people almost convinced me of this, but I always remember the "conservation of energy" from Physics class at university. I think this is what you are referring to @ 18:35. Thank you for the great explanation.
As a person who LOVES a honest, educated, truly knowledgeable Teacher--- LOVE YOU Jeremy... Excellent video!!!
*an
Are you sure you love education?
I really enjoyed this video. I’m one of those people who thinks ‘just add a bigger alternator’ but know deep down it isn’t that simple. The demonstrations shown here show in a visual way what scientists and mathematicians see through equations on paper, and it’s really helped me to understand exactly why ‘just adding bigger things’ will never work.
I’m really grateful for this work, it’s simple, bite sized, honest and relatable, and I’m subscribing. Thanks you 😊
Everything Paul just said..... +1
Nice video! Good job explaining it out. I been dealing with electronic & mechanical repairs my whole life. Even now I'm a plant mechanic and I was always thought this could be done myself. Truly great job on this video. I just subscribed 👍🏾
I love how excited you get for teaching !
Thank you for your video. I'm over 70 and when I was a freshman, I came up with the idea of hooking a generator to a motor so that the motor would run forever. My science teacher walked me through the reasons it wouldn't work. I finally believed him when we set up a test in the lab and the motor stopped turning almost immediately. We spent a week of lunchtime breaks investigating why until I finally got the fact that energy is a constant and can not be created or destroyed. I fell in love with math after that experiment and went on to spend my working life as an engineer. My only regret today is that I have forgotten his name but not the time and the love for science he gave me..
Great story
Thank you
you honor what he taught you, which is better then remembering his name, imo
i would rather people remember the contribution and effort i put in, then my name or the color of my hair/eyes, so i wouldn't feel bad at all, the man loved what he did and passed that on to you, and hopefully other students :)
I love that you used kids to illustrate work. That’s an amazing feat in itself.
This video is getting shared with the grandkids because you’re a great teacher and so they can learn about work (the science and the labor).
Thats what I was impressed with the most, kids working and not whining, What.
Good job young man! I’m an electrical engineer and your video was spot on!
Excellent video! Thank you for taking the time to help educate.
Jeremy, it is refreshing to see someone on TH-cam who has such a clear understanding of physics and can explain the concepts so well. I liked the illustration of work and power using your kids to carry bricks. I especially liked it when you suddenly appeared on screen trying to "motivate" them to increase their power output. Your transfer of "power" from one plastic cup to another was an excellent way to illustrate losses of energy when going from one device to another. You are an excellent teacher. Thanks for this great video.
You explained this in such a simple and effective manner that anyone can understand. I love that you're teaching your kiddos all of this and involving them. It's a breath of fresh air to see a parent actually teach their kids something these days!
I get it! If you attach an alternator to a Tesla's drive train, you can drive forever as long as it's downhill.
I must be stupid.
Feels like school again.
Once you don't know what he's talking about, you start to zone out.
What is the output of kids? I couldn't figure the answer out.
@@Mr_Dopey No Dopey, that ain't it.
You would go slower, even downhill . I think?.
Thank you for the excellent explanation, You are also a great dad !
Damn good video! Keep up the hood work. I'll be watching for future videos.
Using the cups with water was a great visual, really helps visualize and explain the process in simple terms that pretty much anyone can understand. Really wish I had teachers like this when I was in school. Then I might have actually paid attention. Thanks for sharing.
Edit: One thing people should take away from this, is that if it were this simple. It would be common place on every EV. I had a coworker say they should put turbines on EVs to help recharge the battery while driving.
Reminds me of a lady who doesn't quite understand why they can't put a wind turbine on a car for the same reason.
Most EV's do have this... its called REGEN ....its used to slow your car and put power back in the batteries...
Yes, it would have been nice if he could have caught that "spilled" water and funneled it in to cups labeled heat, friction, light, resistance...
@@frotobaggins7169 Noise and windage (moving air) as well. Where I worked we built high power equipment with shaft drives. The shafts were enclosed for safety reasons and we had to arrange cooling through the casings due to windage heat cooking everything if we did not remove it.
@@martinconnelly1473 interesting.
Great presentation, you are the kind of teacher that will stay in the minds of your students for the rest of their lives.
Oh my gosh, what a fantastic video. I'm so excited that I found you!! Makes me wish I was a school aged kid again. I can't wait to watch more and learn!!!! EXCELLENT job!!!!
Your a very intelligent young man mate
An awesome showing thank you 🙏
Very impressive explanations. This grandma, with no college, did not get lost. You had me at "you cannot create or destroy energy, you can only change form." You've taken Einstein and given us a hands on demonstration that brings that reality home. Thank you Jeremy!
Buddy you do a damn good job explaining how things work the world needs more people like you
Great educational video - your students are very lucky to have you as a teacher!
Never realized bricklaying needed to include a towel! Lol
You are a fun and awesome dad! 😁😎
I have a small crank-powered light. I discovered years ago that it is much easier to crank with the lamp turned off than with it on. The misconception about alternators seems to be "it's already spinning" without taking resistance/load into account. I found my light was the perfect demonstration of this fact.
So true. If more people understood just how hard it is to turn an alternator that's under a significant load they'd realize how silly this free energy argument is. I wonder how many people remember how turning the lights on in an old car with a low battery would cause the engine rpm to decrease slightly as the engine would struggle against the load on the alternator. Turn the lights off and the rpm's would increase back to normal.
Your kids are blessed to have you as a father and teacher sir.
Agree, Those are some lucky kids, their Dad is wicked cool.
Great examples. I think you would enjoy looking into the Searle Effect Generator . Uses magnets to generate power.
Om truly thankful I found your lessons thank you soo much for all that you do brother...
As an older and now-retired mechanical engineer, I must say that your explanations and demonstrations were spot on and excellent. Great job!
I love content like this. Science based, friendly and forced child labor. =)
So true. You can't move bricks faster by having more kids, because making more kids requires more energy, time and money
You had me at forced child labor
Thank you for your Wonderful TH-cam channel and the Topics you cover.
LOL.. love seeing your work. Blessings to you and yours.
Unexpected analogy, but I loved hearing the splash every time the power shifted. Bonus points for addressing regenerative braking. Great video!
I first read of regenerative braking in a very early copy of Mother Earth. It was a hydraulic based system. At the time I thought that the author had not allowed the added weight of needed pumps and such. A few years ago driving a nephews Tesla S for the first time, I was shocked at coming up 20 feet short at my first stop sign due to for the regenerative braking.
As an owner of an electric car, this is one of the questions I always get and struggle so much to relay to people. They just don't get power loss and that your car spends energy just to maintain its speed.
As an owner of an electric car.... have you ever used REGEN? This is using an alternator to drag your car to a stop which adds power to your batteries... lmao
@@TroyC68 I'm not sure what it is you feel like you are dunking on here?
Yes of course I know what regen is but that's not what I was talking about. It's not what the video is talking about and he even mentions regen.
No the questions I get and what he is talking about here is people asking if we can use a generator/alternator while still maintaining speed to extend the range of the car.
I think you have misunderstood if you think this is about regen.
@@TroyC68 Generally speaking, every damn time you let completely off the accelerator.... Regen can be defeated but it is commonly used.
Regen mode probably shouldn't be active any time you let off the accelerator but instead only when applying the brakes, since it may be better using the momentum to continue forward when not braking rather than undergoing the conversion efficiency to charge the battery. Regen only under braking recovers what would be wasted energy. A braking position sensor, similar to a TPS, could make the level of regen proportional to the braking force needed for the stop
@@dubmob151 that's about how it works. You'll still get a small regen while coasting since the motor is spinning while you aren't on the accelerator. But it isn't enough to slow the vehicle substantially faster than coasting in an ICE vehicle. At last that's what I've observed in my Bolt.
Sir! Not so much worried about putting an alternator on an electric car. The lesson that you showed with gear ratio and torque however I am very interested in. Thank God there are gentleman like yourself that iterate the mechanical method.
I always wondered about this. Thanks for explaining and making it make sense.
This reminds me of working on stuff with my dad teaching me stuff while doing yard work. I grew up to be an engineer. What a great video, and I know your kids will look back at how great it was to have a parent teach them all this stuff.
When it comes to engineering, math, physics, and related subjects I end up with a glazed look and understand nothing. I admire people who can understand and use them to solve practical problems or explain why it can't be done. You explain the basics clearly, instead of trying to make yourself sound brilliant. I envy your children and students for their wonderful opportunity to learn from a true teacher. Thank you.
You are a good teacher but most importantly you are a good dad.
I have been asked why automobile manufacturers don't add alternators or something to produce free electricity. I have looked it up and tried to explain it, but you explain it so much better. I have also seen so many scams where they try to sell things you can attach to cars or home to get free power. Your video does a good job at explaining why there is no such thing a free power. I am going to share this video. Thanks.