hey guys is there a liquid nitrogen generator that i can buy? and how much is it and whats the rate of liquid nitrogen produced per second min or hour? I want to cool my cpu with liquid nitrogen :)
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hey guys is there a liquid nitrogen generator that i can buy? and how much is it and whats the rate of liquid nitrogen produced per second min or hour? I want to cool my cpu with liquid nitrogen :)
here you go 90 l/hr. if you buy it you have to give us free ln2 ok,
http://www.pci-intl.com/90liter_lin.html
whoa! no way!!!!!! that's too big and i am actually looking for ones that are really compact and cheap but i am probably not going over US$120 for it and if LN2 generators are really expensive i might not buy it. besides maybe i won't even buy it because my parent will ask wtf it is and i say liquid nitrogen generator and they throw it away :( i am ok with consuming power but not too much :)
You are not going to get a LN2 Generator for that price, ever.Quote:
Originally Posted by xtr3m3_ocer
You can setup a nice thing of water cooling for that price but LN2 is a whole new ball game. Heck some Pots cost more than that $120 limit
so how much do they cost and and used liquid nitrogen generators i can buy? i found elan 2 liquid nitrogen generator but they don't mention the price :( so if you have ideas please post them here.
well LN2 Generators aren't exactly something that you can find cheap but if you have a local university, you can check to see if they are going to replace their LN2 generator.
do you mean an LN2 generator as in converting Nirtogen to liquid, or a dewar and pressure feed system?
if you mean the former, go find a BOC plant and look at their gear, or any gas refinery...they weigh tons/tonnes and cost several thousand pounds, maybe like 15-20K
i am talking about personal use and not industrial ones that are fairly big and that produces tons of liters per hour. i am more looking into compact small in size and not too expensive but if it is expensive then fine let it be expensive. probably one i can use in my room which isnt that big but around 100-150 sq feet.
Nitrogen is cheap, please use proper handling regulations of gases in your area. Trying to claim gas can be dangerous.
Well....LN2 benching uses a fair volume..to use 25L/day is easy enough... Once you`re creating LN2, to expand the volume means scaling up the tanks and maybe a more powerful pressure system but the tanks need to be pretty strong to start with and if efficiency is poor you`ll need a large nitrogen tank to start with..I`ll go make sure my facts are straight, but I dont know if a small LN2 system exists coz its not really financially worth it
EDIT: More detail. A compressor takes air from 15 to 3,000 pounds per square inch (psi). When you compress air, it heats up. run that hot air through some coils of tubing. By blowing room temperature air over the coils, we cool the compressed air.
let that compressed air expand. It gets cold. let that cold air blow over the coils of tubing to cool some more compressed air even colder. Eventually, the compressed air is so cold that when it can expand it doesn’t....liquid.
Ah well..maybe not start with nitrogen, but to start with air means that conversion efficiency is poor and you`ll need to deal with the waste...including CO2, so please dont gas yourself :)
It depends where you live to how much it costs to buy LN2. Normally gas suppliers will charge a nice rate as long as you buy large quantities.
As far as buying one, they would cost thousands, and be a fortune to run. In order to make one yourself, you would need to be a refrigeration / cryogenic expert and have access to specialised parts.
somene here is going to have to be blunt and i guess its going to be me. theres is no way your going to get one for anywhere near the price you want to pay.
Think of this: If an LN2 generator was as cheap as $120, why would the people in here bother with spending thousands of dollars buying dewars and LN2 from distributors.
Before you start asking about machines that can produce LN2, maybe you should ask yourself whether you are capable of even handling it? Your question here might indicate that you are not...
If you're looking for something the size of a shoe box, you are out of luck :p:
it is possible but expect production to be measured in mL/Day :p:Quote:
Originally Posted by Nanometer
I've seen one on the net, like a small coffee machine somewhere but I can't find it now.....It produces about 3 to 4 litters per day if I remember well.....:)
:eek: All eyes on you now Hipro! Hope ya can find a link
.....Got it......:D
http://www.elan-2.com/pdfs/6350-Elan2_LN2.pdf
http://www.elan-2.com/
EDIT: I've sent them an e-mail so as to see how much do they cost.......To be honnest if they're not TOO expensive, I'll get one for me coz now we have to travell over 2 hours time so as to get LN2...... :)
.
Only problem is that you would have to leave it running for several days to get a decent amount (for benching), and keep it stored in your dewar.
You'll start in on Monday so as to bench on Saturday/Sunday....:)
Hehe :D. Wonder how much it would cost in electricity. Mind you, it might work out cheaper than paying for your dewar to be filled, and the time/cost of getting to the place :).
this thread went from being a joke to being pretty damn cool.
The device uses 900W according to the datasheet so the powerusage isn't that bad :)Quote:
Originally Posted by Brettbeck
Indeed, I am keeping my eyes on this thread. I do also wonder how much it costs. If it is under one grand, I might buy it.Quote:
Originally Posted by Qkjhfhaiguihfma
wow, that generator seems pretty slick.
the price will determine if it'll be a fun unit to buy or not though.
(please be $9.99) (jk, $999 wouldn't be bad huh)
this is something iv been wondering myself for a helluva time
i have seen one generator working, 8 liters/ hour :D filling our 50l dewar takes quiet long time ^^Quote:
Originally Posted by d94
Xtasy: that seems to be pretty fast in fact! take it this way: you go to sleep and you wake up and have a decent amount of ln2
Hipro: you could get one of those slow ln2 generators and meanwhile you can continue working on your psu ( and give us some piccies :D ).. joking of course
Maybe we can make CO2 too :D
http://www.dryiceinfo.com/
it is a generator standing in a university in germany :)Quote:
Originally Posted by Duh
900 Watt....Quote:
Originally Posted by SynGroW
Here we pay approx .20 swissfrancs per 1kw/h !
In 24 hours you have 21.6 KW!
That makes 4.32 CHF per litre... and buy it from a company is approx 2.50 CHF per litre.. so it's expensive and it takes a lot of time to get 100 litres (nearly impossible)...
I was thinking the same when I started reading into this, but now it has hit an interesting point, I can see it now, ppl from here owning multiples of these...
Come to Hipro's place, like the starbucks of LN2.. Frapaccino's and such
I just got off the phone with Elan and they will try to get us a product sample in a few months, they are behind schedule and do not have anything off the shelf to suit our needs, we would need the larger system and it runs around $11,000
6L every two hours I believe is what they stated.
Forget the LN2 ;)
I'd like to get the specs for the cooling unit in there that will go -170°
1, compress room air
2, seperate nitrogen from room air
3, liquefy nitrogen
4, transfer ln2 to container
Air is extracted from the room through a particle filter and is then compressed to a moderate pressure of 6 to 8 atmospheres. It is then dried and cleaned in a pressure swing absorber dryer.
The compressed air is fed to a membrane nitrogen seperation module.
There is a tech doc they sent me on how it all works, this pdf might be vailable online from them. It doesnt go into the CFC-free refrigeration technology in the liquefy portion of the doc.
single phase 110v 900watts
Whatever cooling unit you're speaking of, it's gotta be an autocascade :cool:Quote:
Originally Posted by G H Z
and a ridiculously big and expensive one too lolQuote:
Originally Posted by s7e9h3n
how cool does this look :D
http://www.elan-2.com/images/article_images/office.jpg
where do they put the drinking cups :D
Here's the PDF.Quote:
Originally Posted by FUGGER
http://mmr.com/elan2manual.pdf
Found this, your right Stephen it's an auto I think. Somewhere reading about this they mention it sounds like a refrigerator running.
"MMR Technologies, Inc., was founded in June 1980 to capitalize on the development at Stanford University of micro-miniature refrigerators invented by Professor William A. Little. The technology involved the fabrication of miniature gas refrigerators on glass substrates using a patented, proprietary photo-lithographic process. In December, 1981 and in a later offering in 1984, $3.2 million was raised from the venture capital community to finance the company. MMR now produces a line of instruments for the characterization of materials based on the availability of these refrigerators. This business has grown and much work in materials science is done using these instruments. Sales in the United States are handled out of the Mountain View, California office, and International Sales through representatives of the company in fourteen countries, worldwide.
In the mid-1980s the company began development of a new type of refrigeration system for cryo-electronics involving the use of multi-component, mixed gas refrigerants as the cooling agent. In 1994 MMR was awarded a major contract under a nationwide (USA) Broad Agency Announcement from the Naval Research Laboratory, Washington for the development of a low-cost cryo-cooler for cryo-electronics. This program was successful. A major portion of MMR's revenue is now derived from the manufacture of these "Kleemenko Cycle" coolers.
A cryocooler for operation at 80K (-193 C) for the cooling of Germanium photon detectors, the X-Cooler, is manufactured under an exclusive agreement for the ORTEC division of Ametek. The detectors are used for X-ray and gamma-ray detection and the monitoring of the movement of radioactive materials. Previously these detectors had been cooled with liquid nitrogen. MMR has a similar agreement with EDAX, another division of Ametek, for the manufacture of X-Coolers for the cooling of Si(Li) detectors. These detectors are a different type of X-ray detector used in scanning electron microscopes that previously had also been cooled with liquid nitrogen. MMR has licensed a related cooling technology for the cooling of computer chips for workstations, computers, and chip testing to KryoTech, Inc., a spin-off from the NCR division of AT&T. Kryotech now manufactures handlers for chip testing for some of the major chip manufacturers using this technology.
In a joint development with FemRx, MMR developed a cryosurgical device, using similar cooling technology, for the treatment of endometrial bleeding in women. FDA, 510(k) approval was obtained for the device for general surgery, dermatology, neurosurgery, thoracic surgery and other areas of medicine. FemRx was later acquired by Ethicon, Inc., a Johnson & Johnson Company. MMR has obtained a far reaching patent on the device.
In 2003 MMR exhibited an office liquid nitrogen generator at the Annual Meeting of the American Academy of Dermatologists in San Francisco. This stand-alone liquefier, designated the "ELAN-2" is now in production. The unit, about the size of an office water chiller, produces 6 liters/day of liquid nitrogen from the air. See our other site: www.elan-2.com.
MMR's main office is located at 1400 North Shoreline Blvd., #A5, Mountain View, CA in the heart of the Silicon Valley."
wow imagine if this machine could be converted into a cooler like phase change units.....sorry it just click here :D :slobber: :slobber:
doubt it can handle more than ~20-50w of heatload at those temps.. ;)Quote:
Originally Posted by dinos22
Here cost us 2.3Euro per 24/7.....So 6 liters/hour filling a 25 litters dewar = 5 days (with losses) = 11.5 Euros......We pay 25 litters 40 - 50 Euros....So it worth for us......;) :)Quote:
Originally Posted by Entsafter
No word on the cost of one of these devices?
$11,000Quote:
Originally Posted by FUGGER
How about having some solar panels to power up that beast?
I did a quick froogle search:
Link
The idea is: you spend some big $ in the generator and the panels and OC until you die :D. You could even sell LN2 ( if legal) in times in which you don´t use it. The production would be of 72 liters a day
Just an idea :p:
what happens if it overflows and fills your bedroom with ln2. ?
11 grand is still a bit much. under 2 grand is more like it.
I was reading a article of a new very large turbine expander a few months ago for a major producer, forgot where but just the turbine was a couple million ,it was supported on magnetic bearing on all axis's very high rpm.real cool stuff.
Not yet.....:(Quote:
Originally Posted by Johnny Bravo
$11,000 for the larger version, Vince needs one on these in his house.
It has auto shutoff so it wont overflow.
overflow control is a good thingQuote:
Originally Posted by FUGGER
he seems to be asleep in half the photos posted on the forum :D j/k
Charles, this price is for the units in my links?...:(Quote:
Originally Posted by FUGGER
here is the ticket for budget minded benchers, not as cold as ln2 but much easier on the wallet.
http://scientificsonline.com/product...cd2=1171014473
not too bad since it can produce dry ice instantly according to the product brief.
Quote:
Originally Posted by hipro5
Yeah that was the one I was wondering about. Fugger is the larger unit recommended because it the quantities required?
Fire extinguishers are a complete rip off though :p:! Well, in the quantities we need they would be.
And how is that supposed to work anyway? You can't open a valve on a Co2 tank and have dry ice forming in a pouch :confused: . It needs to be LIQUID Co2! THen the frost that is formed upon release to atmospheric pressure has to be compressed.
CO2 doesn't form a liquid at atmospheric pressures...
Co2 in the bottom of the tank will be liquid thats why it says it requires a tank with a syphon.Quote:
Originally Posted by Brettbeck
If you release liquid Co2 from a tank into atmospheric pressures it forms Co2 frost, then it's compressed to form dry ice. It's the pressure change from its liquid phase that changes its state from lliquid to solid.Quote:
Originally Posted by Death^Dread
Here is a video to show how its done, not the best of quality but you can see well enough;
http://www.frost-stick.com/dryicepress.wmv
I suppose so, but how many tanks are stored at the required pressures for that? Most Co2 tanks are stored in a lot more than 100bar, in which case it's way over the limit for there to be liquified Co2 in the bottom of the tank. YOu would have to release some of the pressure until it was at a specific amount, so that there would be liquid in the bottom at ambient temperatures.Quote:
Originally Posted by Cpt.Planet
http://encyclopedia.airliquide.com/i...r_Pressure.GIF
But anyway we're talking about LN2 here so lets get back on topic :).
Sorry to revive a dead thread.....:D... but did anything ever happen with the Elan system that produced 6 liters/hr??:shrug: Did they ever get back to you Charles? 2 years later from the last post...maybe time & technology has come up with a better or cheaper unit??
I know what you mean... I bought a used synchrocyclotron particle accelerator at the flea market once. My parent came home and said WTF is that, a synchrocyclotron particle accelerator!!! and threw it away. :( http://img91.imageshack.us/img91/3959/tease1.gifQuote:
Originally Posted by xtr3m3_ocer
LMFAOQuote:
Originally Posted by dengyong
HAHA the best post I have seen in a long time :ROTF:Quote:
Originally Posted by dengyong
loool :ROTF:Quote:
Originally Posted by dengyong
And the garbage collectors came by on Tuesday morning, just like they do every week and go...
WTF is that, some one is throwing away a perfectly good synchrocyclotron particle accelerator!!!
whoa! no way!!!!!! that's too big and i am actually looking for ones that are really compact... and went Bah, its an older unit, then threw it away.
I can see a whole new internet thing starting on this thread :rofl:
I just thought it was trivial in amongst an interesting thread.Quote:
I can see a whole new internet thing starting on this thread
There must be a scale up price break. BOC/Air Liquide etc wouldn't sell it below manufacture cost.
I want to know a vendor for these in Australia, Ill take 1 that does 5 litres a day it can fill my dewar all week then i can bench weekends muahahahaha it costs me 150 for 30 litres here so would be a great investment :)
it helps if you have a business...
I can get a 160L tank dropped off at my office for about $300 and they'll leave it for a week. It has the little tap on top so you can fill your own 1 liter dewar to pour from, or just use double layered foam cups like me ;)
Ouch, that is prison rape per liter.
Delivered and refilled once a week? Convienience can be worth a whole lotta money. Mine is $50 an hour to start.
yeah, they will swap it out for a full one 1x per week.Quote:
Originally Posted by Conumdrum