Відео

Er gaat zéker het een en ander verloren aan wrijving. Ik heb inmiddels meerdere opstellingen geprobeerd, en mijn favoriet is om de band van de fiets om een band-loze generator te drukken. Rubber op rubber heeft erg veel wrijving, en het kunnen gebruiken van de fiets op momenten dat geen stroom aan het opwekken bent is best handig/duurzaam. :-) Een v-snaar en ketting hebben beiden ook het een en ander aan verliezen, en heb nog geen experiment gedaan om de efficientie van alles te kwantificeren...

There will be some losses with a chain, but you are right, much less than in this setup. I did it this way mainly because it's easy. Centering and mounting a sprocket on a hoverboard motor is a bit of a challenge, and you'd probably several steps of gears to get to the right gear ratio/RPM.

Yes. I needed to measure the absolute highest amount of watts that i could generate, to know what kind of electronics i'd need to control it. But you're right, consistent output of around 100W is more or less optimal for must humans.

Would love to, but, you know, time.... ;-) I made it into a performance installation that i'm trying to make a living out of. So that's where most of my time is going right now.

I used a 3 phase bridge rectifier and a big capacitor for every motor to transform the 3 pbase AC into DC. Then I tried the DC output of both motors in series and parallel :-)

Hehehe no I wish! This was several days worth of messign things up and trying to come up with other solutions 😋

@@jurriaandevosprojects I'm glad hahaha. It looks like it's all in one day and I was like "what a fucking machine!" hahaha

For real tho, imma make an asmr edit of all the full length welding, it sounds AMAZING

@@jurriaandevosprojects go ahead ser, can't sub twice to you haha

Great to hear this! If you have any questions or need recommendations about building something like this, happy to help 🙂

Yup, burn those reserves! :-)

Hehehe well, I'm pretty sure neither me nor this bike are in the elite segment... 😇 There is "normal" friction in chain, bearings, etc. and this bike has seen better days. So well above 5% I'd say. Then there is a lot of added fruction between the aluminum rim of the rear wheel, and the rubber from the hoverboard motors. So I'd roughly estimate between 15 and 20% lost between legs and generator. And then there is of course the efficiency with which the generators translate rotation into electricity. No idea how much is lost there to be honest. Stay tuned for the next video's to see how much power I acctually get into a battery. There are some more conversion losses there 😉

Hehehe thnx! "What am i doing" would be the title of my autobiography 😅

Thnx man, greatly appreciated 🙂

Depends on a few factors like efficiency of your boiling device and thermal isolation and such. But, considering that a 80w 350ml water boiler takes about 25min to get to boiling temperature, you could use 3 of those to boil about a liter of water in 25min using 240w. More or less. :-)

​@@jurriaandevosprojects that's quite long for a few cups of tea!

@@KnowArt Yes. So usually some gas/coal/nuclear/biomass-powered steam turbine is doing all that work for YOUR cup of tea. 🙂 Or it's wind, solar, hydro, tidal or thermal power, but those are actually quite a small percentage of power generation.

Haha lol, I suspect 10% of my views are just you :-p

So far, nah. Hitting a 10sec peak of 600w is pretty tough already, let alone sustain it long enough for any significant amount of water to boil. Maybe a cup of tea would work, maybe a slice of toast. When you team up wit a bunch of people though, it gets more realistic! 4 people might be able to sustain 1kW for long enough to do some cooking... 😊

Induction plates need 60hz to give the base frequency for the pwm to use as a carrier. Also need to be used with a pure sinewave inverter or the guts blow up.

Thnx! Happy to hear that 🥳

Often, mass produced products are cheaper /and/ better. But even in that case they might add less value over their lifespan as they won't be resold because the market is flooded, making it unproductive for individuals to resell. I wonder if this can become so bad that the overall efficiency ratio of a product is worse, between the work that it took to create the product vs the work that the product does in its lifetime. That'd be worth a nobel prize.

@Know Art Very true. I left the whole "economy of scale"-thing out of the story, cuz there's already so much to say. You wanna make a video about it? Colab?😛 But you're right. Producing in great quantities is incredibly more efficient than producing/trading/repairing in tiny quantities. Stuff and its location tends to go in an ever increasing state of entropy, where it scaters throughout the world until it's either worn and torn, or just not in the right place to be used anymore. Logistics and indexing is a great challenge right now. If someone would apply AI there, that'd be nice. Nobel prize, anyone? 🙂 Responding to your last thought, I don't think our current economic system is targeted towards efficiency and utility, but towards maximum reward. So I think it's very plausible that there are products that in fact cost more to produce then they'll ever make up for. This of cource also taps into true pricing.... And I think it's a hard thing to measure. Sure, if all product where tools, it'd be realtively easy. But there are a lot of products that aren't produced to do work. Books, paintings, ornaments, paint, etc. I don't know how to measure when a book had more output than it cost to produce. And other things are there to provide security, either real, or security of utility. For example, how much work do smoke detectors do? Or how usefull is it to have a shed full of tools that you rarely use? Or a car for occasional trips? They're all there to provide security of utility, but are seldomly used. Well. Hm. Thoughts. 🙂 I would argue, quite bluntly, that we'd need to maximise utility if we want to sustain such a huge population. So sustainability = maximising utility? Maybe. More thoughts.