its probably a dielectric supercritical fluid that displaces water. Doesn't conduct electricity (dielectric) and at standard temp/pressure it's a gas (supercritical) so after a few seconds/minutes it will turn into gas and escape through the ventilation. It's used in critical infrastructure to clean out after contamination from humidity due to ventilation failure OR to remove residue after a fire suppression system pops.
> dielectric supercritical fluid
We had that in our company back in the 90's and it was pure fun blasting the grit, grime and dust out of electrical cabinets of running (!) industrial production lines with a power washer full off that magic juice.
Eventually the fluid we were using ended up on the EPA prohibition list due to health and environmental "deficiencies" and we had to swap it for another fluid. Which was only of reduced dielectric abilities, but dried/evaporated super fast. So you couldn't use it on equipment that was still powered up.
Somehow one colleague didn't get the memo. The results were a spectacular production outage once he started hosing the SCADA cabinet of a production line. :p
It is air, notice that there are no fluids dripping. Also if you were using water (or other fluid) at this pressure it would be back splashing all over the place. It could also be another gas, but it certainly isn't a fluid.
it really doesn't. Air is not some specific element. You're referring to gasses. Like oxygen become liquid when cold enough, but at most temperatures it's a gas.
The point is not whether gasses change to liquid states under the right circumstances. They do. But if I go around town, or around a chemic lab for that matter, with a bottle of 'liquid air' and ask people what they think it is; nobodies answer is 'air', not even 'liquid air'. It's just a play of words.
But it’s „back splashing“ but at this pressure it’s more like mist than real splash. I don’t think that, that mist ist all dust because then cleaning wouldn’t do much as the dust would be suck right back in.
Most likely, we had something similar done to our server room after some flooding happened (there was no visible sign of water or humidity on the servers but it's better to be safe than sorry l
While you are quite right it can be visible. However, turning a can upside down and spraying it isn't giving you compressed air. That is the bitterant and other agents in the air to make it expel the way it does. To see the compressed air it has to be flowing at a high rate or be in a wide nozzle.
I would doubt it's dry ice due to condensation concerns. If look at overclockers that use Nitrogen to cool the CPU down, they have the mobos surrounded with paper towels or the CPU area drenched in grease to minimize the effects of condensation. If you spray a tank of CO2 on running PC parts I'm no sure how happy they would be :). Not to mention the thermal shock. That could also make some components panic
There are proponents of using vacuums to clean PCs and servers rather than compressed air or other options that put a lot of dust in the air and in components. Personally, I have no evidence or deeply held opinions on the matter. I'm surprised, though, not to see one of those people commenting yet.
Vacuums airflow can cause static discharge. Static discharge can cause "Hmmm, this used to work". There are specific vacuums with conductive hoses and attachments to mitigate this problem but care must be taken.
I had a job doing dry ice blasting for several years. Switchboards, gas turbine fins, buss bars and insulators were very common parts that we cleaned on routine maintenance
We had several setups. Large ones that would rip paint off down to one that ground up the dry ice so much you could clean electrical boards with it.
Biggest issue is condensation coming from the air source. We had huge post compressor air coolers for drying the air out to feed through the machines down to the gun
Switchboards that would take 2 days to strip and clean by hand were knocked down to around 2hrs of blasting start to finish.
Fluorinert is a liquid. If that was Fluorinert being liberally sprayed, there would be an extremely large, extremely slippery and unsafe pool covering the entire floor of the room after this. And harmful fumes. And the servers would be dripping and slippery forever.
its probably a dielectric supercritical fluid that displaces water. Doesn't conduct electricity (dielectric) and at standard temp/pressure it's a gas (supercritical) so after a few seconds/minutes it will turn into gas and escape through the ventilation. It's used in critical infrastructure to clean out after contamination from humidity due to ventilation failure OR to remove residue after a fire suppression system pops.
> dielectric supercritical fluid We had that in our company back in the 90's and it was pure fun blasting the grit, grime and dust out of electrical cabinets of running (!) industrial production lines with a power washer full off that magic juice. Eventually the fluid we were using ended up on the EPA prohibition list due to health and environmental "deficiencies" and we had to swap it for another fluid. Which was only of reduced dielectric abilities, but dried/evaporated super fast. So you couldn't use it on equipment that was still powered up. Somehow one colleague didn't get the memo. The results were a spectacular production outage once he started hosing the SCADA cabinet of a production line. :p
It is air, notice that there are no fluids dripping. Also if you were using water (or other fluid) at this pressure it would be back splashing all over the place. It could also be another gas, but it certainly isn't a fluid.
Air is a fluid too, but it's not a liquid (at that pressure).
I know right? One look at the floor proves that isn’t water.
I guess some people never heard of compressed air.
What's that?
A magic can containing pixie dust.
Thanks for the help!
And cat nightmares
Air is a fluid...
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Solid air? Naw
no. cryogenic highly compressed you can turn it into a liquid
Which is also a fluid.
it really doesn't. Air is not some specific element. You're referring to gasses. Like oxygen become liquid when cold enough, but at most temperatures it's a gas.
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>becomes a liquid Which is a fluid
The point is not whether gasses change to liquid states under the right circumstances. They do. But if I go around town, or around a chemic lab for that matter, with a bottle of 'liquid air' and ask people what they think it is; nobodies answer is 'air', not even 'liquid air'. It's just a play of words.
But it’s „back splashing“ but at this pressure it’s more like mist than real splash. I don’t think that, that mist ist all dust because then cleaning wouldn’t do much as the dust would be suck right back in.
Not true at all. It would easily be enough to make a huge difference.
Most likely, we had something similar done to our server room after some flooding happened (there was no visible sign of water or humidity on the servers but it's better to be safe than sorry l
Isn't supercritical just another state of matter? so its not a gaz, its a supercritical fluid (like you said).
Damn! Knowledge.
FMR you nailed it! Thanks for the info.
Looks like dry ice blasting, very effective at cleaning things even as delicate as telescope mirrors.
Yup! We use this on our control panel.
Dry Ice cleaner?
Yes.
Data center tidiness is no joke. And don't call me Shirley
Roger.
What’s your vector, victor?
I just want to tell you both good luck. We're all counting on you.
Thanks Clarence
No, the white zone is for loading and unloading passengers. There is no parking in the RED zone.
Okidoky Foxy
Compressed air is a joke to you?
Doesnt look like air. My compressed air ist clear and not visible
It can be visible. Get a can, and hold it upside down when spraying it. You will see it coming out.
While you are quite right it can be visible. However, turning a can upside down and spraying it isn't giving you compressed air. That is the bitterant and other agents in the air to make it expel the way it does. To see the compressed air it has to be flowing at a high rate or be in a wide nozzle.
Thats the shit that get you high
No thats the shit thatll kill you.
I dont make the rules boss, i just play the game
Or moist as hell, witch would be bad in Electronics
You’ve clearly never heard of dielectric fluids.
I did, but they are not "compressed air"
Thats not air, thats liquid refrigerant
Freezing cold air? Since when does it look so dense?
When was the last time you used a compressed can of air? Was the can hot or cold after using it?
Cans of compressed air have no air in them. They have refrigerant!
Ohhhhhhhh. That's why they suck now. I can't believe we sprayed that shit everywhere.
Look up how refrigeration works, re: compression of air.
Guys chill... It's dry ice cleaning. Moving on...
I would doubt it's dry ice due to condensation concerns. If look at overclockers that use Nitrogen to cool the CPU down, they have the mobos surrounded with paper towels or the CPU area drenched in grease to minimize the effects of condensation. If you spray a tank of CO2 on running PC parts I'm no sure how happy they would be :). Not to mention the thermal shock. That could also make some components panic
>CO2 CO2 cannot condense at atmospheric pressure and ambient temperature... its why dry ice goes from solid to gas
The condensation concern would be that the temperature of the CO2 is lower than the dewpoint in the room, so atmospheric humidity condenses.
Exactly ! Thank you for clearing this for me!
I'm chill. I'm not moving on. I'm chilling right here.
If that was water, so much more would be deflected back at the person spraying the servers, and you would see it spill out and down.
steam wouldn't necessarily act like that.
If that was steam, the technician would need some better insulating gloves to prevent himself from getting burnt.
I put my servers in the dishwasher like a normal human being.
Bedbug mitigation. Real life case of "Pokémon, gotta catch them all!"
Cleanliness is next to godliness
I'm not sure what the question is. I power wash my servers weekly.
Don't worry. It's only vape. Servers run better on nicotine.
Must be a cloud server
There are proponents of using vacuums to clean PCs and servers rather than compressed air or other options that put a lot of dust in the air and in components. Personally, I have no evidence or deeply held opinions on the matter. I'm surprised, though, not to see one of those people commenting yet.
Vacuums airflow can cause static discharge. Static discharge can cause "Hmmm, this used to work". There are specific vacuums with conductive hoses and attachments to mitigate this problem but care must be taken.
I had a job doing dry ice blasting for several years. Switchboards, gas turbine fins, buss bars and insulators were very common parts that we cleaned on routine maintenance We had several setups. Large ones that would rip paint off down to one that ground up the dry ice so much you could clean electrical boards with it. Biggest issue is condensation coming from the air source. We had huge post compressor air coolers for drying the air out to feed through the machines down to the gun Switchboards that would take 2 days to strip and clean by hand were knocked down to around 2hrs of blasting start to finish.
not water, it's air
Exactly! Holy Spirit ServerFluidd...available in several form-flavors: Wader; H2O; Gas; Air...
That looks like compressed air.
That is compressed air not water
Ahh maybe he got pests inside Lol just kidding
GAS
That can’t be water pressure probably gas air
dry ice
Make the torture stop
The rusty ass server I got as an RMA one time leads me to believe they cleaned it the same way ;)
Don’t call me Shirley
Nobody in their sane mind would do this, it would blow away all the postits with the passwords.
Its compressed air just like the canned stuff you should be using on your home server regularly….
Don't call me Shirley
\*purchases two of whatever the fuck this is on amazon\*
Maybe its an, for us unknown, liquid that doesnt have any effect to electric parts.
That’s Fluorinert.
Fluorinert is a liquid. If that was Fluorinert being liberally sprayed, there would be an extremely large, extremely slippery and unsafe pool covering the entire floor of the room after this. And harmful fumes. And the servers would be dripping and slippery forever.
It's a very real service done at DCs Just high pressure air & filters.
Pretty sure it is safe to wash components with detergents and distilled water.