Not a fan
this post was submitted on 23 Dec 2024
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That's correct.
It Fannot. Or it Fan't.
Defanned
Doesn't an ionic air moving system like this put out a big ass EM field?
Im a fabricator who don't fuck with the lecky, but maybe someone more educated than me can explain why this doesn't wipe your memory every time the cooling kicks on
The "fan" sits inside a faraday cage.
I'm more excited about those Frore MEMS airjet chips.
That's actually in at least one consumer product right now.
Counterpoint: stop trying to make laptops thinner and implement realistic and functional air cooling
Well there's no shortage of those, and they're unusually cheaper too (unless they're specced out). I prefer a thin silent one myself, so I welcome this innovation.
Passive cooling is generally better for reliability if you can make it work, since all active airflow systems will degrade as dust and hair works into the airflow paths.
Plus, the two can be used in combination. Improved passive cooling systems will make active cooling better by reducing the need to run the active system all the time, or at least run it at reduced rates, which will make the whole system last longer and reduce maintenance.
But this system still makes airflow right? Just without moving parts.
Make the chassis out of aluminium so the whole bastard is a heatsink.
The GRiD Compass, "the first laptop," was made of magnesium.
When they brought one into space it had to be retrofitted with an external fan, because heat doesn't rise in zero-G.
Slaps roof of laptop This bastard can cook so many egg omelettes
Two eggs and one sausage
Apple has been doing that for years
My laptop and older phone has this and it really does help with the added surface area.
The only issue is if you go full throttle, the section right above the CPU can fry your hand lol.
Although I only ever reached that temp doing stupid crap like hashing.
Or we innovate 🤷
It isn't a given that every device needs a fan anymore. For example non intel MacBook air.
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I want to put one in a Valve Steamdeck.
Nintendo Switch would be more compelling.
It would be a good use case; however, you can only do so much with a cut down version of a SOC that was originally made in 2015. It may be work for very little gains.
Speaking from experience here, and limited information from the company, this looks like a polished version of a high-voltage grid accelerator.
https://ventiva.com/how-it-works/
What can be an expected concern is that besides ionizing air and imparting motion to neutral air molecules as the ionized ones rush from one plate to the other, that same effect can and will charge dust particles. That "collector plate" will need to be easily accessible.
They do have a solution for the ozone and dust problems. See this video at about the 9 minute mark:
https://youtu.be/fyai_kUYhLs?t=539
tl;dw: they're using a cataylist to convert the ozone. There's a lack of specifics on the dust issue, but they apparently have thought about it and have something there.
One other issue is that the static pressure is abysmal. You can work around that, but it's not a drop in thing.
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So my take away from all of this is that this is a laptop that can propel itself around in space. Pretty neat.
Sadly, there would be no reaction mass.
All that would happen is the lcd panel would boil and crack, and the processor would overheat soon after because nothing is carrying away the heat.
Nah, it can use all the dust and bits of carpet fluff. It's magical stuff carpet fluff, it's always a different color to any color you actually have as a carpet.
Ionic acceleration of air needs high voltages and the air gets ionized (the reason people recommend against vacuuming a PC). I'm surprised that it works at all in close proximity to sensible tech.
Edit: right, low static pressure, meaning: lower voltages. But still not low.
They use a grounded faraday cage around it. Video on it where he touched on that https://youtu.be/fyai_kUYhLs
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the reason people recommend against vacuuming a PC
A regular vacuum isn't doing anything with ions or high voltages. Moving air can generate potentially harmful static electricity, but usually the reason people recommend against vacuuming a PC is because if you spin the fans doing that, the motors inside turn into generators and drive current back into your PC parts that could damage them.
Moving air can generate potentially harmful static
Well, and what do you think creates that static electricity? Ionization.
Feeding back electricity, that's why motors usually have a diode or something.
The difference between a vacuum and this fanless cooling device is that a vacuum happens to generate a small amount of static, and usually has grounding wires in the hose to prevent it shocking things, while this fanless device is intentionally ionizing as much air as possible to get it to move.
Exactly, that's why i'm wondering how it is save.
I think Dave2D made a video about those. He was cautiously optimistic.
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