It's always a matter of how much electricity and how efficient is it.
10 kWh per day from a washing machine sized cube is nothing to sneeze at. Whether the humidity to keep it powered consistently is achievable and the maintenance to keep it running is sensible and the cost of building up enough of this stuff to output that level of energy can be commercially viable - that's the big question.
10 kWh per day
This gave me a chuckle. 10 kilojoules per second for an hour per day.
They have said it wrong, its more like 42 000 miliWat minutes 4 times a day
Is it wrong, though? Hours and days cancel out to give you the energy production rate (10,000 watt*hours/24 hours or just under 420 watts).
Zirconium costs around 30 dollars per kg. That "washing machine" gonna cost around 60k on materials alone. I'm guessing it might be great for watches and other low power devices, but it likely won't power homes as is.
Nah... The "disc" isn't 100% zirconium. I don't know what it's made out of but the zirconium part is just the nanowires which would likely be some teeny tiny percentage of the overall weight. If it's like silicon ICs (e.g. the CPU inside your computer) zirconium would probably account for less than 1% (probably 0.1 or even 0.001%) of the overall weight.
99% of it likely to be "packaging" which is tiny copper wires carefully connected to the zirconium (probably via an intermediary material) to transmit and combine the power along with loads of insulating materials and lots and lots of high temperature plastic (so it can survive short bursts of soldering).
It's a prototype and may not like getting very hot so maybe they didn't use normal soldering methods and might have used conductive adhesives or similar crimping or vacuum welding or other fancy ways of connecting things that labs have access to for such things.
Down here in Miami I feel like I've been drinking the air instead of breathing it the last month or so! I definitely think there will be climates very well suited for this technology
Farts have to be pretty humid, right? I look forward to being able to charge my cellular telephone by simply expelling gas from my rear using specially made underwear.
Self recharging vibrator
If that was the case I'd be able to power a building by myself.
The Lyubchyks estimate that the levelised cost of energy – the average net present cost of electricity generation for a generator over its lifetime – from these devices will indeed be high at first, but by moving into mass production..
So next to the fact that these nanotubes will clog with bacteria/particles from the air, and that they'd likely solve it with another device that completely purifies and pushes the air, I'm not hopeful.
Waiting for that Thunderf00t video on this.
It sounds interesting, but I don’t quite get where the energy comes from - it sounds like they are harvesting the kinetic energy from the water molecules? So what is the net effect when scaled up? Does the device get very cold? an ELI5 would be appreciated
I hope one day we will be able to charge devices without plugging them in - even if the amount of charge is small, it might be able to trickle charge all the time.
check out energous.com stock ticker WATT
Singaporean: Take my money!
Dam. I really hope this turns into a thing. Something like this that works and is cheap to produce will be so beneficial.
The issue is the amount of energy produced (minuscule) and the requirement for very humid air. It's also likely that the device needs to be colder than ambient temperature if I've got my thermodynamics right, so removing heat might be necessary, obliterating any gains and turning it into a dehumidifier that produces a small amount of waste electricity.
It might be another option in the pile of 'energy harvesting' solutions, where you need microwatts to miliwatts to power devices like remote temperature sensors, to avoid fitting ten-year lithium batteries. It doesn't seem likely to go beyond that.
I don't believe it requires any temperature differential. It looks like it works by using something similar to static electricity.
I just want us to dehumidify the whole South
I don't know how humid this air has to be, but summer in Georgia hits 100% humidity fairly regularly so it'll definitely work
Sorry to hear the scientist commited sudoku tomorrow with 2 gunshots to the back of his head. /s
I'm going to assume you got auto corrected from seppuku to sudoku. Because that is hilarious.
It doesn’t say how humid the air needs to be. Will it still work if humidity is low?
There's always some humidity, so I guess in the end it depends entirely on how efficient they can make this technology. It's probably a bit too early to say.
That said, if you live in a tent in the Sahara you probably shouldn't postpone investing in solar panels over this.
I imagine this having practical usage in maybe keeping things like sensors working in a plumbing or caving kinda context considering the low power currently created. Awesome!
It doesn't matter how complex we get, it always breaks down to moving water in a varied state of matter.
This is a really neat accident and I am hoping to follow this one closely.
So if this gets scaled up for global use won't it cause issues by drying out the air?
It doesn't look like it dehumidifies the air, just takes advantage of the humidity's electrical charge.
Feel like there is still room for error, so this needs to be investigated further. Would be a great substitution.
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