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Cool Your PC or Laptop with Ionic Wind
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Tessera is developing a cooling system that charges ions to move air particles away from a laptop's heat source.
Back in March, international chip-packaging company Tessera presented a unique idea to attendees of the IEEE Semi-Therm Symposium. The presentation illustrated a way to cool a working laptop by eliminating the commonly used fan. In its place, Tessera proposed a cooling system that charges ions to move air particles away from the heat source. According to the company, this unique iconic-cooling system can actually extract 30-percent more heat from a device than the conventional exhaust fan.
"Today, consumers are demanding electronic products--such as notebook computers, game consoles, and set-top boxes--that are high performance, ultra compact and extremely reliable," the company said. "However as these products become increasingly more computing-centric, they are generating substantially more heat in smaller areas and putting a strain on conventional cooling solutions: mechanical fan-based systems that are large, noisy, and unreliable."
As defined in the company's presentation, a high intensity electric field ionizes air molecules surrounding the cooling system's electrode tip. While the ions travel from the corona electrode to a collector electrode, they collide with neutral air particles, transferring charge and momentum, and increasing airflow. As an example, Tessera's ionic cooling system could be mounted next to a laptop vent. Heat pipes leading from the stressed CPU would carry the heat to a point between the ionic cooling system electrodes. Thus, the charged molecules, moving from the corona to the collector, would carry the heat away from the heatpipe, and out the vent.
The development process hasn't been easy for the company, however. Because laptops are built to function for at least 30,000 hours, the research team needed to find a way to keep the electrode materials from corroding prematurely. Another challenge presented itself in the form of power consumption, requiring the development of a converter that transforms the laptop battery's 12 volts DC into the required 3,000 volts necessary to power the ionic cooler. The research team eventually developed a tiny power supply roughly three centimeters square in size.
Tessera is currently trying to determine how to reduce the amount of dust invading the space surrounding the electrodes, possibly by using a prefilter to lessen the amount of damaging particles. "Dust collection reduces efficiency," the company said, adding that multiple solutions are still under development. According to Tessera, stock laptops will not need to be altered other than removing the pre-installed fans. The cooling system is fully self-contained, featuring the ionic blower and power supply built right into the fan cavity.
Ultimately, the advantage to having this system installed is that it remains quiet, features no moving parts, costs less than the conventional fan, has a flexible form factor, and consumes less power. Unfortunately, the technology is still under development. However, Craig Mitchell, senior vice president of the Interconnect, Components, and Materials division of Tessera, said that the company plans to commercialize the system next year.
Source : Tom's Hardware US
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Check your spelling.
lpatop lol
Neat idea but what about possible electrical noise,etc?
Great, now when i go to work on peoples laptops i will be met with a 6000v 'welcome sign' that shocks the piss out of me.
How about quiet desktop solutions?
liquid cooling is great and all, but if you're building a cheap HTPC, it may be out of budget.
This is saying cheap, quiet, efficient. I like the idea of it. Makes sense if you want something quiet that performs well.
It would be cheaper and better just to make the heat sink bigger simply by spreading it out throughout the chasis via heat pipes.
How about quiet desktop solutions?liquid cooling is great and all, but if you're building a cheap HTPC, it may be out of budget.This is saying cheap, quiet, efficient. I like the idea of it. Makes sense if you want something quiet that performs well.
Performs well, Unless you get dust.. Im in Iraq right now... This would never work here and I know common folk refuse to dust their PC's... it will spell disaster!!
Great, now when i go to work on peoples laptops i will be met with a 6000v 'welcome sign' that shocks the piss out of me.
How about 1 amp? /gg
How about 1 amp? /gg
You have never heard, "Volts Hurt, Amps Kill"???
What about it producing ozone? Even Sharper Image admits that their ionic breeze air purifier produces ozone.
I wouldn't want to have to google myself out of a locked closet with one of these in my laptops...
Insta buy. cold=good.
When they fix the problems its got, I'll buy it
They seem to forget that this is exactly how electrostatic air cleaners work. So in one month, your PC will be clogged up.
Very very old news. First time I heard of the ionized air fan idea was in an Elektor electronics magazine back in 1982 or 1983 where they presented it as a diy description, maybe someone can dig up which back issue it was in. The inherent problem is of course that ionizing air generates ozon which is toxic.
How about 1 amp? /gg
6000 V * 1 amp = 6000 joule is quite enough to char you. I wonder if there's that much energy in the laptop battery, though.
Have you ever introduced latex to ozone (latex glove, etc)? the ozone will eat it right up. I didn't know about ozone till I watched a special about it.
the smallest statice electric spark is around 500 volts,,,3000 is really nothing if there is minimal amount of power flowing through it,,,the only way to get a good shock off the system is if you touch both ends at the same time,, then you're just being an idiot
as for making heatsink bigger,,this is for a laptop, ppl are trying to make them smaller, not heavier
I agree the ozone part may be an issue,,but who knows how much is actually generated, it may take days in a completely sealed room to have enough to cause a problem.
"...costs less than the conventional fan..."
Hm... costs less to produce, it will not be cheap for us.
Sounds interesting and practical too. I would definitely want to have one if it was available.
uses less power than a fan, even after the conversion of 3000V in a laptop? I'd like to see this!
Surely there are safety issues with 3000V being on a device like a laptop; risk of getting electrocuted, risk of distorting radiofrequencies like wireless lan, cellphone signals, the internal sound card, interferring with hearing devices (or perhaps pacemakers)...
It's pretty hard to imagine, looking at my laptop, that this device will be able to extend more heat than a fan, seeing that my laptop's fan is pretty powerful and needs a lot of air to cool it.
So perhaps the system used needs a larger surface? It's hard to imagine it could extract more heat from a laptop than a fan would, while not being able to provide the same airflow.
What would happen if an obstacle would be next to the laptop (eg: an empty plastic bottle placed next to the fan's exhaust)? With less airflow, and still more heat being extracted, the bottle could locally heat up a lot, and perhaps even melt.
Hard to believe... Especially if they say that it 'costs less than a fan'. Since a laptop fan costs less than $1, it is hard to believe those claims are true!
but who knows how much is actually generated, it may take days in a completely sealed room to have enough to cause a problem.
ponder 30-50 ionic coooled laptops on a 4hour plane ride...
I'll pass on that one, thanks
It sounds like it has a lot of issues still to solve. If its takes more power than a fan it could be a no go anyways.
Wow, what a great idea, except for the fact that electrical discharges like that create Ozone. Now you can only use that laptop with the new ionic wind cooling system in a well-ventilated area. And the idea of adding a prefilter that they proposed? Wow, apparently these people have never worked on a laptop before. Filters on laptops are in general a really bad idea. The average user never cleans out their laptop fans with with compressed air, and adding a filter would just exagerate the problem becuase it would trap more dirt and I cant even count the number of laptops that have come into my shop because theyre randomly turning off or rebooting, just to discover the heatsink completely entombed in a crust of dust and fuzz. Youre best bet is just to pass small dust straight thru the heatsink and blow it back out like most of them already do. But of course with an electrostatic charge being used to move the air, I can only imagine how that would turn out. Stick to the $1 brushless DC fan in my opinion.
don't comment on power converters unless you know how they work... voltage doubling effects from a DC standpoint work by manipulating charge on a capacitor. there is no way for this voltage to supply any amount of steady state current whatsoever, so in the event that the charge is rapidly removed, the event would be similar to an ESD event. so the power supply which generates 6 kV only needs to keep up with the leakage current(generally small, microamps worst case)
oh and P = I*V is in watts, which is in joules / sec, so 1,000,000 V of potential discharging with 1 microamp (average) over 1 sec is 1 W of power during that 1 sec, and 1 J of energy is discharged.
as others have said, the problem with ionizing air is the ozone it produces
why is this kind of stuuf done for lap tops only ??? qutie hnestly air coolers are getting hard to pul off on desk tops adn tehr are stil plently of peopel that don't like the idea of liquids near electronics , so why not make this for a desk top , they would'nt eve have to worry aobut power , with todays 1200 wt psu's that are getting common on desk tops SO GIVE ME THIS STUFF FOR DESK TOPS !!!!!
this is a quite old system to create airflow. I suggest people to search google for small UFO/helicopter like flying devices using this technique. The main probem is the efficiency...
As partially already pointed out, problems are: high voltage generation (efficiency, reliability problems in commercially available CCFL inverters), electrocution danger (only organoleptically unpleasant, if proper done - high source impedance), ozone generation, potential EMC problems (LV digital electronics and HV don't cohabit nicely, electrically charged particles in LV HZ electronic circuits can wreak havoc), particle contamination is a show stopper (conductive particles - insect zapper anyone? - and humidity, can quickly short the electrodes).
All in all, it might (somehow) work in a lab, but the real world is much tougher.
Sounds interesting and practical too. I would definitely want to have one if it was available.
And if it also has a m$ sticker, it's a done deal... best ever.
Have you ever heard an Ionic Breeze when they go bad i.e. collect too much dust? The sound is unbearable... It would make a computer unusable.
There's a reason the "Ionic Breeze" flopped and was discontinued. Not just because it didn't work, but because it was hazardous to your health as well. OZONE = BAD. How bad? Lung cancer bad. Could never be used in closed spaces with recycled/recirculated air supplies.
Why do they still think this is a good idea?
how can something this elaborate be cheaper than a plastic fan with a simple motor? and the reiability issue with fans - well if the tiny power supply fails on this thing, then what? and what about enviroments where air isn't clean ? I just returned from a trip to our wielders, and there's a ton of metallic dust inside the computers there. Wouldn't this solution break in such a location?