On the second stage a little coil usually does the trick but if the refrigerant is exiting the oilseperator above ambient it can only help/.
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On the second stage a little coil usually does the trick but if the refrigerant is exiting the oilseperator above ambient it can only help/.
r503 has a molecular mass of 87.25 and works well, r14 also has a molecular mass of 88.
so do you think that they will act similar?
where as r50 was 16.04 and not a very good gas. does molecular weight relate to the capacity of the gas?
Yes molecular weight and its density when compressed. These relate to its enthalpy.
I was looking through one of my dads old chemisty books and it shows that r14 boils at -150~ @ 100mm , I believe tha is around 4hg. So that sounds like a good 3rd stage refrigerant. The reason I said -150c is b/c carbon monoxide is a liquid @ -150 and 20bar, so that sounds like a realy good candidate. It boils @ -190~ with 1 atmosphere.
Carbonmonixide has a triple point also. That is the reason Co2 is such a hard refrigerant to use also.
I didnt notice that, ill have to check. You could probobly mix it with some argon or r14 and have it work alright. It still seems like a awsome refrigerant if you can condesne it.
and carbon monoxide is extremelly dangerous, when you brathe it, it blocks hemoglobine in your blood cells and you die with blood transporting no oxygene or you get REALLY sick for a few days at least. I was poisoned a few times with it, belive me you dont want to feel it
it only takes a few days for your blood to replenight itself? I have one of those masks that block ALOT of harmfull chemichals. It might be able to block co. Btw berkut how did you get poisoned? Jet engine?
same as N2 one mouth full and dead.Quote:
Originally Posted by berkut
80% of the air is N2 ;)
NOS is a bigger problem :)
Nos is the one gas (drug)that has had none of reported deths other than people faling asleep form inhaling it and hitting their head in the process:)
speaking of which, has anyone used the stuff in a cascade yet?
also there are 2 differant kinds, the one used in cars and the one your dentist has.
Isn't it NoX you are talking about here???
I do belive that if it had some real application to refrigeration it would have a R numer as in R740......
NOx is an oxident and should never be used in conjunction with a fuel (oil) under pressure with a possiable sourse of ignition.
wait, the Nitrous they put in cars, is nitrous oxide right? so its... N2O3, or N02, or what?
i think nitrogen is +3, and oxygen is -2, so it would be N2O3 or something
someone listened in chemistry.
N allso has a negative value if i remember correctly. And even a -2
so it is NO i think :)
but that's not really important. It is to dangerous to use in refridgerant systems. There is oil inside and oil + oxygen = bomb :)
wasnt NOX, NOS (however they call it) N20 ? :P
too bad the guy across the road does drag racing has a street legal car on nos.
hes always got 2 bottles laying in his shed that i could use.
i have a feeling its n20 with a yellow sticker
NOx is a collection name for NO and NO2(nitric vapors). the brown smoke you get when you poor some nitric acid(HNO3) on copper is NO. it is very harmfull if you breath it in.
Sorry, my mistake
NOx is NO or NO2
NOS is N2O (laughing gas).
But none of them are usable as refrigerant. They are all reactive.
NOS is also liquifyed at 50 bar at room temp, and boils at -88.5C at 1 atm and freezes at -91.8C. Not good for a refrigerant is it?
But I have to say that it seems to me that going from one stage to a normal (two stage) cascade is a rather huge difference. But I would expect going for a three stage is an even larger step towards a complicated setup that is way more complicated in ALL ways.
BTW what is the difference in OC when going from -100C to -120C (it seems to me that it is hard to get loaded temps below that temp even when using 3 stages)? Is it such a huge difference? And think about all the work to get those few degrees...... And how about runtime??? How long can one expect to run such a rigg?? Is it so much longer than a LN2 setup after all? And is it cheaper in the long run?
All these are questions I'm asking after looking at you guys strugle.
My answer would be to start looking at stirling cryo-coolers.
? lost stuff
We lost pages???? Checking>
nope. the nos/nox discussion is just in two separate threads:) This and the compressor oil Thread.
Did it get split?