Slashdot: News for Nerds


Welcome to the Slashdot Beta site -- learn more here. Use the link in the footer or click here to return to the Classic version of Slashdot.

Thank you!

Before you choose to head back to the Classic look of the site, we'd appreciate it if you share your thoughts on the Beta; your feedback is what drives our ongoing development.

Beta is different and we value you taking the time to try it out. Please take a look at the changes we've made in Beta and  learn more about it. Thanks for reading, and for making the site better!

Ionic Cooling For Your Computer

kdawson posted more than 7 years ago | from the ion-breeze dept.


master0ne writes, "We (the folks over at InventGeek) have produced the first ionic cooling system for your high-end gaming system. This system produces absolutely no noise and in fact has no moving parts at all. While this is a proof of concept, it demonstrates that you can get the CFM you need to cool a system efficiently with no moving parts and no increase in power consumption."

cancel ×


fp (1)

kahuna720 (56586) | more than 7 years ago | (#16127502)


Re:fp (-1, Offtopic)

Anonymous Coward | more than 7 years ago | (#16127619)


I have a huge boner!

laptop use (2, Insightful)

glassjaw rocks (793596) | more than 7 years ago | (#16127503)

This could be great for laptop uses. Desktop replacements could probably run a heck of a lot cooler now.

Re:laptop use (1)

Brad1138 (590148) | more than 7 years ago | (#16127523)

Look again, the cooler would be bigger than the laptop.

Re:laptop use (2, Insightful)

glassjaw rocks (793596) | more than 7 years ago | (#16127543)

Well, seeing as it's just a proof-of-concept, I'm sure much smaller systems will be developed.

Re:laptop use (1)

zippthorne (748122) | more than 7 years ago | (#16127627)

Why would you want high voltage in a flimsy platic box on your lap?

Re:laptop use (4, Funny)

lewp (95638) | more than 7 years ago | (#16127741)

Baby, my lap is high voltage.

Re:laptop use (3, Informative)

BRTB (30272) | more than 7 years ago | (#16127763)

You already do. The backlight inverter in the LCD screen produces several thousand V(rms) initially to fire up the fluorescent tube, and somewhere in the high hundreds of volts while in operation. []

Re:laptop use (1)

Compu486 (891190) | more than 7 years ago | (#16128038)

How is this diffrent than a sony battery?

500 (-1, Troll)

Anonymous Coward | more than 7 years ago | (#16127504)


* Please try to keep posts on topic. * Try to reply to other people's comments instead of starting new threads. * Read other people's messages before posting your own to avoid simply duplicating what has already been said. * Use a clear subject that describes what your message is about. * Offtopic, Inflammatory, Inappropriate, Illegal, or Offensive comments might be moderated. (You can read everything, even moderated posts, by adjusting your threshold on the User Preferences Page)

I don't get it (4, Insightful)

vlad_petric (94134) | more than 7 years ago | (#16127511)

Would someone enlighten me? What is the principle behind ionic cooling? The article shows how to build it, but not why it works :).

Re:I don't get it (0, Offtopic)

Mahali (193357) | more than 7 years ago | (#16127524)

Consumer Reports rated the Ionic Breeze the worst of all the ones tested. They said it didn't change the particle count of contanimates in the air because it didn't move air.

It was (by far) the quitest of them though.

Re:I don't get it (1)

man_ls (248470) | more than 7 years ago | (#16127555)

I own one, it has to be doing something since the collection grid fills up with lint and so forth every couple of weeks. I just tested the "no air flow" thing by putting a piece of tissue paper over the output and it blew around like their was air moving, so it seemed to be doing something.

Granted, it's not a great amount of air flow, but I've noticed an improvement in the indoor air quality of my room since installing the thing.

Re:I don't get it (5, Interesting)

flyingfsck (986395) | more than 7 years ago | (#16127713)

Yup, they actually work, due to two reasons. The ions are generated at the tip of a bunch of needles and accellerates away, causing an air stream, so that incoming air can be filtered. Also, the negative ions causes dust particles in the air to clump and settle onto the floor of the room, where your vacuum cleaner can get them.

The best devices use a combination of these effects and use a fan to force air through an electrostatic filter and inject negative ions into the outgoing airstream, to spread around the room and make dust clump and settle and get stuck in the electrostatic filter better.

I have two Bionair units in my home and it really helps to control my cat allergy - my solution to my wife's love of a gawddam cat...

Re:I don't get it (2, Funny)

Jeff DeMaagd (2015) | more than 7 years ago | (#16127585)

You've succeeded, but the success was in not answering the question. The question wasn't about the IB so your reply was completely out of place.

Re:I don't get it (1)

StikyPad (445176) | more than 7 years ago | (#16127673)

Except that he ripped apart a knockoff Ionic Breeze to build his cooler. If the real thing doesn't move air, why would his jerry-rigged version?

Re:I don't get it (1)

twistedsymphony (956982) | more than 7 years ago | (#16127854)

since when does the real thing "not move air" you do realize it's called the ionic _BREEZE_ If you actually RTFA you'd notice he estimated to CFM to be over 300.

Re:I don't get it (5, Informative)

StikyPad (445176) | more than 7 years ago | (#16127977)

If you actually THOUGHT (or read my other post [] ), you'd realize that the claim of 325 CFM is utterly ridiculous, even without considering that he made no mention of his testing methods. 325 CFM would be a wind tunnel, and he most definately would have heard something (a vague howling sound perhaps?) if that number was accurate.

Re:I don't get it (1, Informative)

glassjaw rocks (793596) | more than 7 years ago | (#16127532)

Ionic cooling "uses an electrical charge to create a cooling air jet right at the surface of the chip." (from digg)

Basically, it charges the ions at or very close to the surface of the chip to act as a "magnet" for air.

Re:I don't get it (1)

Xzzy (111297) | more than 7 years ago | (#16127558)

Don't you watch infomercials?

The EPA certifies "it's a newer way to clean air!" (this is an actual quote)

Call now, and we'll give you a second one, free.

Dunk it in salt water (1, Offtopic)

EmbeddedJanitor (597831) | more than 7 years ago | (#16127640)

The sea is full of ionic coolant.

Re:Dunk it in salt water (1)

StikyPad (445176) | more than 7 years ago | (#16127939)

That would be ironic cooling.

Re:I don't get it (1)

ZakuSage (874456) | more than 7 years ago | (#16127696)

Obviously, liquid cooling is SOOOOOOOO 2005.

How an 'ionic wind' works. (5, Informative)

The Raven (30575) | more than 7 years ago | (#16127814)

A strong negative electric charge is put into one side of the system. This side should have many sharp points angled toward the positive side to be the most efficient. Negative charge builds up in this grid, concentrated at those points. The charge is not enough to actually arc across the air and make a spark, but it is high... high enough that electrons leap across, one by one. Actually, they're leaping across in the millions and billions per second, but they're so tiny that the effect is imperceptible.

This 'leaping' across has always seemed like how ice sublimates into a gas... it doesn't melt into water, then evaporate, an ice cube in dry air can evaporate directly. In the case of the electrons, they don't melt and flow across (spark) they just imperceptibly leap off one by one. Yeah, it's a bad analogy, but it's the best I can think of. :-)

As the electrons leap across the gap, they sometimes run into air molecules. When they strike, they can merge with that molecule, and turn it into an ion... this air ion now has a negative charge, and it gets drawn toward the posotive side too... pulled across, the air molecule bumps and shoves other air molecules, and you get a current of air, many of them negatively charged ions.

This 'other side' happens to be big flat metal plates in the 'ionic breeze', but it doesn't have to be. It could be a simple grid of metal, like chicken wire or something. Anything that can carry a current, and let air blow past it.

The charge between the two can be thousands of volts, but the current is very small. However, something getting in that gap, like a bug, could get zapped. Yeah, bug zappers are technically 'ionic breeze' machines too, but the voltage and their shape is not optimized to blow air.

As to where I learned this... all hail Popular Mechanics. An article way back in the late 70's demonstrated these, but not to make ions... they demonstrated a grid powerful enough to take off. Imagine a perfectly silent helicopter with no moving parts, trailing a thick heavy power cable (because they couldn't generate enough electricity onboard to lift it on its own). Definitely a nifty idea.

The Raven

Not ionic, just passive (0, Troll)

Zouden (232738) | more than 7 years ago | (#16127513)

All they really did is replace the fans with passive heatsinks (and a heat pipe). The 'ionic' part is one of those negative ion generators which do very little and cost a lot.
Really, this is nothing to get excited about.

Re:Not ionic, just passive (1)

Valacosa (863657) | more than 7 years ago | (#16127579)

That, and most of the things the creators praise this system for have been done (and better) before. No moving parts? No noise? Sounds to me a lot like liquid metal cooling [] . Hardly a first.

Re:Not ionic, just passive (0)

Anonymous Coward | more than 7 years ago | (#16127599)

You may be right. I am perplexed by the claim of 350 CFM.

Let the infomercials begin! (1, Funny)

evilneko (799129) | more than 7 years ago | (#16127515)

I can't wait for the Ionic Breeze PC Edition! Available now for only 3 easy payments of 39.99!

Re:Let the infomercials begin! (1)

1310nm (687270) | more than 7 years ago | (#16127778)

$39.99?? How 'bout I give you a quarter and you just send the free Ionic Life Vegetable Chopper gift?!

Ionic Breeze (1)

Dr. Eggman (932300) | more than 7 years ago | (#16127517)

It doesn't just move air! It purifies air! It traps the dirt 'n dust particle right onto the collection plate, keeping it out of the air you breath!

Anyone else see that infomercial? Makes me wonder, is this thing going to trap more dust than a regular fan or is the infomercial a bunch of marketing bull? I'm betting on marketing bull, but it would be nice if cleaning it were as simple as removing the "collection plate" and wiping it.

Re:Ionic Breeze (4, Insightful)

MBCook (132727) | more than 7 years ago | (#16127552)

I can't comment on the Ionic Breeze, but I can tell you the principal is perfectly sound. At my house we had an Electrostatic Air Filtration System installed, which is basically the same thing but attached to the duct work. The thing does make a noticeable difference with allergens and such (which is why we bought it).

What they show on the commercial (about wiping one off and it being filthy) is absolutely true. About once a month (for our system) you are supposed to pull out the two filters (each about the size of the average desktop PC) and the two screens (just simple mechanical filtration for the large stuff). You stick 'em in a utility sink with some dishwashing powder shake 'em around, and then let 'em soak.

You put in perfectly clear water, and when you lift the two filters out the stuff is a very solid grey color. It also leaves a hideous ring in the sink.

Electrostatic air filtration really does work. I have no doubt that the Ionic Breeze systems do work (to some degree). But the principal is absolutely sound.

Re:Ionic Breeze (1)

MBCook (132727) | more than 7 years ago | (#16127565)

I just remembered (right after I posted, of course) how they move air. If I remember correctly the charge on the plates in the system causes the air (which was already charged on it's way in) to accelerate. The plates have one charge (negative?) and the air is charged the opposite way (positive?). They are naturally attracted to each-other, but since the big plates aren't going anywhere the air gets pulled in. When it gets close enough it loses it's charge but now has momentum and keeps going through (also gets pushed out by more air being pulled in). Combine this with the dust and such that gets sucked in (only gets stuck to the plates) and you get air movement.

Re:Ionic Breeze (1)

StikyPad (445176) | more than 7 years ago | (#16127662)

That sounds reasonable, although I question his quoted 325.00 CFM, which I saw no mention of how he measured. By comparison, most computer fans rate in the 10s of CFM, and this guy [] does 265 CFM.

Ionic Breeze does not perform as advertized (3, Informative)

Anonymous Coward | more than 7 years ago | (#16127729)

A lot of law suits flew around as a result of the Ionic Breeze, here is some [] information about it.

Anyway, it does pull dust out of the air. The amount it actually pulls looks impressive, but is actually so insignificantly small as to almost be immeasurable (as Consumer Reports found). You need like 20 of them in your room to make a noticable difference.

Further, they produce ozone, which then fills the room. Ozone can be harmful to people with some breathing disorders, so in some cases it actually makes things worse.

I don't know if the system mentioned by the poster also produces ozone, or if it also removes an insignificantly small amount of pollution, but the Ionic Breeze is simply not worth the money.

Further, the things are *NOT* silent. They make static-electricity noises. They don't start making them have to run them for a few weeks. Then they start making zappy/poppy noises. They aren't hurt-your-ears loud or anything, but you do hear them, and they do just go on and on (even after you clean the plates).

Lastly, the darn things outright break after a few months.

The HEPA air filters are bulky and loud, but they actually get the job done. If you need clean air, go with that instead.

Re:Ionic Breeze (1)

not-enough-info (526586) | more than 7 years ago | (#16127815)

So, if I have this in my PC cooling system, does that mean that once a month I have to open my box and wipe the grime off my cooler? I'm all for dual purpose but this really can't be all that great for dust levels inside my box.

Re:Ionic Breeze (1)

Animats (122034) | more than 7 years ago | (#16127829)

Electrostatic precipitators work fine at pulling particles out of air, but they don't provide air movement. They need a fan to push the air through them.

Large versions [] of this technology are used at coal fired power plants to remove the particulates from the flue gases. (Doesn't help with sulfur; that takes another process.) The resulting powder is used to make cement.

ESP use in Coal fired power plants (0)

Anonymous Coward | more than 7 years ago | (#16127955)

A better link describing how they are used can be found at stm [] , and some photos can be seen at [] >.

Very large equipment sizes are required to be effective on a power plant scale.

Re:Ionic Breeze (1)

flyingfsck (986395) | more than 7 years ago | (#16127753)

Electrostatic and ionic filters really do work. They are commonly used to clean up the smoke stacks of factories. However, to be effective, you probably need something a lot bigger than an Ionic Breeze, unless you put one in each and every room of your home.

You can actually buy electrostatic furnace filters at any hardware store. Those things are just a mesh and foam combination of an electrostatic plastic - a kind of plastic that is always charged - similar to a permanent magnet, but of the electrical kind. The result is that fine dust particles that would normally pass through a filter, will stick to the thing. They are good at removing tobacco smoke, pollen and cat dander. Cleaning them is hard though - need to let them soak in a bathtub with dishwasher and rinse with lots of water.

The negative ions generated by an Ionic Breeze unit, also causes dust in the air to clump and settle on the floor, where your vacuum cleaner can get it, so it removes more dust from the air, than is apparent from just looking at the collection plates.

Re:Ionic Breeze (4, Informative)

Brett Buck (811747) | more than 7 years ago | (#16127806)

I had an Ionic breeze, and it definitely works. It moves a fair bit of air, and it definitely takes dust out. Those plates get dirty pretty quickly, and you do just have to wipe it off.

      However, I found that it while it's silent to start with, it doesn't stay "silent. As it gets dirty, it start to buzz a little bit. Wiping the plates doesn't entirely fix it, because stuff also sticks to the other pole of the circuit. There are 4 long wires suspended in the case from top to that ionize the dust, and then the plates attract it. Eventually, the wires get dirty too, and to clean them you need to wipe them somehow. I used a bit of paper towel taped to the end of a piece of arrowshaft tubing. It's a pain to do, and while I never did it, it would be easy to break the wire.

      My ionic breeze blew the internal fuse one day, when one of the capacitors in the high-voltage power supply spewed it's guts out, and I never bothered to fix it.

        There's probably a lot better ways to cool off computer chips, I would think. A heat sink with a thermionic cooler would seem a lot more practical.


It cost 14$? wtf? (1, Troll)

growse (928427) | more than 7 years ago | (#16127525)

It cost $9-15? Isn't that just because most of the stuff was donated?


Re:It cost 14$? wtf? (2, Interesting)

AP2k (991160) | more than 7 years ago | (#16127562)

Yes and no. The purifier they used obviously was not included in the cost. But to make an ionic purifier for yourself would cost next to nothing just the same.

Its just a high voltage transformer, its driver circuit, and some plates.

Fixed. (1)

The Living Fractal (162153) | more than 7 years ago | (#16127531)

"We (the folks over at InventGeek) have produced the first (and last) ionic cooling system for your high-end gaming system"


Re:Fixed. (0)

Anonymous Coward | more than 7 years ago | (#16127731)

First, the ionic breeze is not silent. It does not have a fan but you can hear it hum after it has been on for a while in a quite room. When it is near time to be cleaned it is quite loud. Really this thing would suck to clean the way they have made it. I know that unit they used was donated but sharper image, makes short ones that would have fit with out all modding.
You can get a similar unit now at walmart too.

oblig contrast (5, Funny)

Digitus1337 (671442) | more than 7 years ago | (#16127541)

My current cooling system blows by comparison!

Obligatory Silly. (0, Offtopic)

twitter (104583) | more than 7 years ago | (#16127765)

My current cooling system blows by comparison!

Current eh? How about plasma? My Jackob's Ladder [] spark gap chimney effect is a real blast, though it's not quiet or very good at cooling.

Ionic Breeze for your CPU! (1)

breeder (1000278) | more than 7 years ago | (#16127545)

Buy an Ionic Breeze Heatsink right now, and we'll throw in the famous OWL Card, the flashlight/magnifying glass credit card for FREE!!!!1!!! Buy now! Only 29.99.

Re:Ionic Breeze for your CPU! (1)

breeder (1000278) | more than 7 years ago | (#16127610)

Crap, only 30 some people beat me to it. Oh well..

Re:Ionic Breeze for your CPU! (0)

Anonymous Coward | more than 7 years ago | (#16127715)

I would rather have Oxy Clean, for when I get really daring and attempt to browse more than one window using only one hand (the other free to hold my *coughie* cup), than the OWL card.

Alanis Morissette flashback . . . (4, Funny)

geekwithsoul (860466) | more than 7 years ago | (#16127566)

For a second, I thought it said "Ironic cooling . . ."

Hmm, I wonder if that would involve a black fly and some super-cooled chardonnay.

Oh, wait, that wasn't ironic after all.

Re:Alanis Morissette flashback . . . (1, Funny)

Anonymous Coward | more than 7 years ago | (#16127703)

Heh. I read it as coming from InventGreek and wondered when the Doric PC cooling system was coming out.

Ironic cooling (1)

i_like_spam (874080) | more than 7 years ago | (#16127837)

I bought an Ironic Cooling system for my PC awhile back.

With a power rating of 500 Watts, I found that the Ironic Cooler actually heated up my PC, so I'm not using it anymore.

Heh (1, Interesting)

Anonymous Coward | more than 7 years ago | (#16127569)

My brother uses an ionic cooling system. His system was overheating, so he took off one of the sides, added some mosquito blocking metal mesh for porches and pointed his ionic breeze at the case. Works well enough.

That's nothing. (1)

ScentCone (795499) | more than 7 years ago | (#16127580)

I've got a machine with the Alanis Morisette Signature-Series Ironic Cooling System. Of course, just like the unit in TFA isn't really "ionic," her's isn't ironic, either. Which makes this actually ironic! Yeah, I really do think.

325 CMF? (5, Funny)

bjackson1 (953136) | more than 7 years ago | (#16127584)

On the final page it indicated that this ionic system can do 325 CMF. The rest of the units are in CFM, so I am assuming it's a typo. However, how can a fanless system do 325 cubic feet per minute? I've seen ionic systems before and they have never put out anything near that amount (at least from my non scientific estimations). If so, than this is much more than just a passive solution. Unless it is 325 CMF, and it's cubic minutes per feet, but then I think that I just went crosseyed trying to think of cubic minutes.

Re:325 CMF? (1)

Hadlock (143607) | more than 7 years ago | (#16127690)

Well a 120mm fan does about 112cfm. This ionic breeze jobby is about 3x the height, and 1x the width, so it's plausable that it could do 3x the cfm. Unfortunately the way computer cases are designed is that 66% of the airflow is blocked by the disc drive and hard drives, with a tiny inlet (usually 80x80mm) at the bottom for the rest of the case. The apple G5 sorta gets around that by moving the drives to the back and putting 4-5 ~60mm fans on the front (some zelot will correct me with the exact specifics), which combined, probably do about 325cfm, too.
So yeah, his system does 325cfm, but only maybe half of that is making it in to the interior of the case at a velocity worth cooling anything. Still pretty genius.

Re:325 CMF? (1)

MadEE (784327) | more than 7 years ago | (#16127852)

Having used one of these air doesn't come out of these things anywhere near as fast as a fan of the same size.

Re:325 CMF? (0)

Anonymous Coward | more than 7 years ago | (#16127717)

Then you know not of the Time Cube!

Re:325 CMF? (2, Funny)

flyingfsck (986395) | more than 7 years ago | (#16127774)

Hmm, lessee. The earth is about 24000km in circumference, so an hour is about 1000km and a minute would be about 17km. So 325 cubic minutes (5000 cubic kilometers) per foot would result in a rather high compression ratio. I can feel a big bang coming on... ;)

Re:325 CMF? (0, Redundant)

itwerx (165526) | more than 7 years ago | (#16128061)

      Mod parent funny! (Or maybe insightful)

Re:325 CMF? (2, Funny)

qbwiz (87077) | more than 7 years ago | (#16128078)

No, you should be thinking in terms of space-time. 1 minute = 60 seconds. 60s*c = 5.90142634*10^10 feet. Cubing that, we get 2.05527989*10^32 ft^3/ft, or the surface area of 4*10^16 earths, rather larger than what you got.

Re:325 CMF? (1)

imboboage0 (876812) | more than 7 years ago | (#16127839)

I think it's completely feasible. Think about it. If this [] can put out 78CFM@2000RPM, why is it so hard to imagine? For our purposes, let's say we can fit 6 fans (go with me) on the back of this case. that is 468CFM, with the fans on silent. Imagine if you sped them up. Take the same concept, make it use ions to move the air instead, and call it a day. These ionic devices have been shown to move air, however minimal. I think it can be done, unless someone else has something to show me otherwise.

Re:325 CMF? (1)

theLOUDroom (556455) | more than 7 years ago | (#16128065)

I don't buy it.

It's not that I don't believe this thin can push air, but the claim that this pushes the same or more air that a fan using an equal amount of energy just doesn't seem right.

Were are the pictures or even a simple description of their test setup?

It's not just the 325 CMF [sic] rating, there are other other genreally sloppy things about this story, like a listed project cost of $9-15. Bullshit. ONE of those "fanless" heatsinks they used would cost more than that.
And then there's also the issue that they use FANLESS heatsinks. As in NOT NEEDING A FAN.
This means their system would probably work with a magic 8 ball crammed int here for "cooling".

Cubic meters per fortnight (5, Funny)

abpend (1003471) | more than 7 years ago | (#16128099)

Perhaps CMF is cubic meters per fortnight. By my math, that's about 0.57 cubic feet per minute... they may have fooled lesser souls by using two-week -long measures of time, but we at Slashdot are much cleverer than that. Fanless, indeed.

How about a real price estimate? (2)

r_jensen11 (598210) | more than 7 years ago | (#16127586)

They state a rediculously low price. How about an estimate for everything; case, PSU, memory (both for RAM and disk space), VGA heatsink, video card, etc?

It sounds fantastic, but also, I would not be able to have a functioning computer with only 8GB of disk space. Possibly if I had it running solely as a client, but then I wouldn't even need any disk space, only lots of ram.

Besides, who can honestly fit all of their porn onto 8GB these days?

Re:How about a real price estimate? (1)

master0ne (655374) | more than 7 years ago | (#16127609)

you completly missed the point of the article, its ment more as a gaming PC at the moment, install UT2k4 on it, or Quake 4 etc, and frag away in unbeleavablely quiet bliss on a lightning fast machine. I do agree the price is redicously under quoted though, however it could possibly be a bit cheeper if you like most geeks already have some of the stuff lyinge around... an old P4 board / proc, a passivlt cooled nvidia card, ddr ram, case..... ur still looking at the ionic system and the nice power supply and the ram drives, however it just fell from a few thousand dollars to maby a few hundred :)

Re:How about a real price estimate? (0)

Anonymous Coward | more than 7 years ago | (#16127959)

It's RIDICULOUS, just like your spelling. (And, to be fair, the parent poster's as well).

Ozone anybody? (3, Insightful)

Ucklak (755284) | more than 7 years ago | (#16127594)

Isn't this a generator of ozone?

Doesn't this seem dangerous or is the output the same as one of those stand alone units?
What about cleaning it?

Re:Ozone anybody? (2, Informative)

Monkelectric (546685) | more than 7 years ago | (#16127931)

I do believe you are correct. Ozone isn't terribly good for people and it rots rubber and a number of other things. Goto the chemistry department at your local university -- you won't find a copier machine anywhere near the labs. The ozone generated by them rots the stoppers and seals and what not.

Re:Ozone anybody? (3, Informative)

ivan256 (17499) | more than 7 years ago | (#16128005)

and it rots rubber and a number of other things

It oxidizes copper. I wouldn't want it anywhere near my motherboard.

Price (2, Interesting)

Doomstalk (629173) | more than 7 years ago | (#16127600)

What baffles me about this mod is that he says it costs $9 to $15, but everything including the ion generator costs more than that. If he can't get the price right, what's to say its as effective has he claims? Especially since he gives us a CFM figure, but doesn't tell us how he measured it, or give us any concrete numbers on how cool it runs.

325.00 CMF? (1)

Lisandro (799651) | more than 7 years ago | (#16127624)

Can that be a typo? I don think you can push that ammount of air with a simple ionic setup like the one described in the article...

Anyway, it's a neat idea, but the system is setup so all the heat generating elements irradiate inside the case with a large ionic fan providing airflow. Unless the setup blows a LOT of air through the case, i'm guessing the large passive heatsinks are doing their work without a lot of help from the ionic setup. I'd also watch out for ozone generation (which can become a problem with HV setups in enclosed enviroments) and safety - most probably the HV generator is current limited to a few milliamps, but still.

Re:325.00 CMF? (1)

Raxxon (6291) | more than 7 years ago | (#16127710)

CMF.... Cubic Meters/Fortnight?

~0.0161 Cubic Meters/Minute?

~16.1 Cubic Milimeters/Minute?

~0.0009824 Cubic Inches/Minute?

I dunno. Converting those wacky units of measure always give me decimal problems.

Re:325.00 CMF? (2, Funny)

zippthorne (748122) | more than 7 years ago | (#16127711)

If you can, I'm waiting for the ionic leafblower. Finally you can blow your yard trash into the neighbors yard at night without waking him up. Mwa Ha hah!

do7l (-1, Troll)

Anonymous Coward | more than 7 years ago | (#16127628)

obsessed - give get tough. I hope Dying. See? It's mistake of electing the longest or

Bah (0)

Anonymous Coward | more than 7 years ago | (#16127639)

"This system produces absolutely no noise and in fact has no moving parts at all."

Methinks the hard drive has moving parts... :-P

Re:Bah (1)

arb (452787) | more than 7 years ago | (#16127663)

It doesn't have a HD.

Re:Bah (1)

siodine (984411) | more than 7 years ago | (#16127907)

They're not using a harddrive because they're trying to achieve a completely silent computer, instead they use a ram drive.

Re:Bah (1)

Millenniumman (924859) | more than 7 years ago | (#16127683)

It has no hard drive. Read the article.

Interesting... (0)

Anonymous Coward | more than 7 years ago | (#16127647)

...but where can I find out about ironic cooling for my computer?

Ionic systems don't work (0)

Anonymous Coward | more than 7 years ago | (#16127659)

They simply don't push around enough air. The Sharper Image even tried to sue [] Consumer Reports because they said so. Of course, they lost.

DAW computers (2, Insightful)

Datamonstar (845886) | more than 7 years ago | (#16127667)

This would be GREAT in a audio production PC. Fans are noisy and so are liquid cooling solutions to a degree. If this could be affordable and effecient, then I could see this becoming the standard for the studio PC.

liquid nitrogen? (1, Insightful)

Desolator144 (999643) | more than 7 years ago | (#16127674)

You know, liquid nitrogren doesn't exactly have moving parts either and it uses no electricity unless you want to run it through a radiatior and I believe if it's under pressure, it will go back down to a cold temp quickly by itself.

Re:liquid nitrogen? (0)

Anonymous Coward | more than 7 years ago | (#16128103)

Interesting. Liquid nitrogen gets cold by itself.

I think I figured out a way to harness this phenomenon to solve the world's energy problems.

Will do more harm (3, Insightful)

Venik (915777) | more than 7 years ago | (#16127695)

In the project they use elements of a consumer air ionizer. These devices create negatively-charged ions. These are attracted by dust and smoke particles, causing the latter to fall to the ground or be attracted to positively-charged surfaces.

"All the affected airborne particles ultimately wind up on surfaces close to the ioniser, making the area immediately surrounding the ioniser dirty..." (Wikipedia [] ). The more dirt sticks to the ionizer, the less air it is able to move. anufacturers of Ionic Breeze and other such devices recommend cleaning the metal plates every couple of days. This is probably not a very practical solution for a PC. However, it's an interesting experiment.

Re:Will do more harm (1)

A Brand of Fire (640320) | more than 7 years ago | (#16127783)

In the article, he stated his concern about the generation of negatively-charged ions moving across the surface of delicate electronic components, so he took a cue from the neutral ionic HVAC filtration systems used by companies with dedicated server rooms and removed one of the diodes from the driver circuit; this (supposedly) greatly reduced the number of negatively-charged ions passing through the system.

This is quite an interesting idea, the use of such a device as a means of moving air inside a computer case. If a properly developed system were created by engineers with the intent of such an application, I'm sure it would be as neutral charge-wise as those systems already in use in server HVAC setups. I'd love to see such a system hit the market.

Re:Will do more harm (1)

A Brand of Fire (640320) | more than 7 years ago | (#16127800)

My mistake. In my sleep-deprived consciousness, I somehow read your comment as a concern about the negatively-charged ions wreaking havoc with the computer's internal components and sought to clarify that. My apologies.

However, your concern about the amount of gunk that forms on the collection grid of these devices is very well-founded. I own one of the IB knock-offs and it requires a great deal of cleaning on a very regular basis, at least once a week--made all the more difficult by living in an apartment in which three of the other tennants are heavy smokers (which was why I bought it). That stuff is a right bitch to get off those collection plates, I tell you what, and it does impact both air flow rates and the device's ability to remove contaminants from the air.

Re:Will do more harm (1)

novus ordo (843883) | more than 7 years ago | (#16127883)

While products like this produce more negative ion than positive and thus impart a overall negative charge to whatever they blow on, its is possible to buy a neutral ion generating power supply from for instance. These types of ion generators are used in server rooms and clean rooms all over the world as they are designed to remove pollutants from the air as well as neutralize any static buildup at all on any surface. With our ionic filter system, we need to just remove a single diode to remove the negative ion production.
Doesn't mention any diodes later though. I would keep one hand in your pocket when testing this one..

Will do more harm Being Hand-y (0)

Anonymous Coward | more than 7 years ago | (#16127979)

"Doesn't mention any diodes later though. I would keep one hand in your pocket when testing this one.."

Isn't that were most geeks keep theirs?

just what we all need... (0)

Anonymous Coward | more than 7 years ago | (#16127712)

more ozone in our homes....

What about ozone danger? (4, Informative)

mTor (18585) | more than 7 years ago | (#16127723)

These cooling systems use the same principle as ionic air purifiers. Consumer Reports did several studies and they have issued several warnings about dangerous ozone levels that these machines might create. This is the reason why I ditched my Ionic Breeze air "purifier".

The magazine also said that people with asthma or respiratory allergies are especially sensitive to indoor ozone, an irritant that can worsen asthma, deaden sense of smell, raise sensitivity to pollen and mold, and may cause permanent lung damage.

Read more here: Danger: Ionizing air purifiers impure []

Re:What about ozone danger? (1)

Spikeles (972972) | more than 7 years ago | (#16127932)

And we all know that CNN can be trusted to tell the unbiased truth!

wikipedia link about the technology (0)

Anonymous Coward | more than 7 years ago | (#16127776)

No moving parts? (1)

jd (1658) | more than 7 years ago | (#16127781)

I sure hope the ions are moving, at least! Otherwise, things'll get fun when the charge causes the resistance of the air to break down.

Ozone is bad! (0)

Anonymous Coward | more than 7 years ago | (#16127805)

These things are known to put out a considerable amount of ozone. This ozone attacks rubber and some plastics making them quite brittle.

Short pages (0)

Anonymous Coward | more than 7 years ago | (#16127832)

God, I hate these ridiculously short pages. God forbid you have long pages.

um (1)

pretorious (905586) | more than 7 years ago | (#16127862)

With no moving parts, it looked like he opted to go without an optical drive... I suppose you could install windows over network, but what about your games? looks like he romoved the CFM claim on it

Temps (1)

siodine (984411) | more than 7 years ago | (#16127881)

Why the hell wouldn't they list the idle/load temps? Are they trying to hide something?

TF"A" is spam (1)

clang_jangle (975789) | more than 7 years ago | (#16127986)

From TF"A"
"The case we chose to use for this project is the Thermaltake Armor case...t just so happened that they offered us this case with the sponsorship. So I suppose a free armor case was the icing on the cake... but it was not what made us choose this product...we chose to use this Thermaltake power supply in our project because Thermaltake was kind enough to donate it."
And the ionic breeze? A gimmick of course, without a fan you are not moving air. Period. So, not just spam -- really stupid spam! Oh well, there goes my karma...
Load More Comments
Slashdot Account

Need an Account?

Forgot your password?

Don't worry, we never post anything without your permission.

Submission Text Formatting Tips

We support a small subset of HTML, namely these tags:

  • b
  • i
  • p
  • br
  • a
  • ol
  • ul
  • li
  • dl
  • dt
  • dd
  • em
  • strong
  • tt
  • blockquote
  • div
  • quote
  • ecode

"ecode" can be used for code snippets, for example:

<ecode>    while(1) { do_something(); } </ecode>
Create a Slashdot Account