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Originally posted by Gary Lloyd
Do NOT ever even consider using oxygen. Put that thought entirely out of your mind.
Oxygen + Oil = Bomb
Spontaneous combustion. No spark needed. People with oxy/acetylene torches have been killed by cleaning the oxygen regulator with soap, because the soap contains oil. [/QUOTE]
I thought this advice was well worth posting again:exclamati
I made two exhangers for my 3 cascades cooling like this one : http://www.stpats.com/images/convolutedchiller.jpg
this is an example of what I made, there're bigger and greater:D
zytrahus,
Quality work man!
:toast:
I'll just try to make exhangers with the best efficiency
Hehe,
Heres a sneak peak shot of the system (I stage) currently im leak testing it, think the system doesent leak but the car radiator and pump does ;]
Btw. after 2 pull down's the water went from 15C to 35C
http://www.berkut.neostrada.pl/part2/2.jpg
what power is your first stage compressor ?
and about your second stage, does the compressor allow low succion temp ?
The I stages compresor is a 10k btu tecumesh and in the II stage is a ~8k btu sanyo compressor
both compressors were tested @ ~-65C suction with the cpu runnin ;] and ran fine with 2x 120mm fans blowing @ them
but in the case of use of Ethane or CO2, succion temp are lower than -65°C, aren't them ?
what do you mean with "10k btu" ? what power at which evap temp ?
The compressor is marked as a 10000 btu unit, dunno @ what temp.
Yes, the suction temp is lower but in my systems no liquid comes back to the compressor, only vapour.
I don't know this unit system : btu... I'm european, that's may be the reason... ?
nice! finally some decent progress? HAHA this thread is so long and still a work in progress;) gj man practice makes perfect! lol u should be a pro for sure when u get this bad boy done! (not saying u arent a pro already:toast: )
dunno when but i see smth REALLY weird.... :slobber::slobber::slobber::slobber::slobber::slob ber:
it seems like my copper pipes leak somehow, in the condenser i can see bubles all the time (they are forming very slowly) and i suspect its freon.. cause the charge seems to go away :slobber:
i almost cant belive it, how can a copper pipe leak like that ? :slobber:
Here are some handy conversion charts for Europeans (and others):
http://www.sciencelab.com/data/conversion.shtml
thanks for your help !Quote:
Originally posted by Gary Lloyd
Here are some handy conversion charts for Europeans (and others):
http://www.sciencelab.com/data/conversion.shtml
oh... I didn't find "DTU" in the list what unit is DTU ?
BTU = British Thermal Unit
DTU = typo
;) :toast:
Shat, man!
Waht the H331 is it???
A hyper drive, an antigrav unit??
Man, it looks pristine!
Why do you wear 'full cavity search' type gloves?
Is it corrosive, the stuff you smear on the pic?
Btw, I think you should check 'Goo cooling' thread on Liquidninjas - fab project, seems to be almost concieved for phase change!
Imagine dipping rad like evap into such a goo and cooling compressor with it (all 100% immersed in the goo!
Its not corrosive, its poliurethane glue and it impossible to wash off your hand ;]
Im not considering goo coling, i prefer to cool few vital parts of the system as much as it can get insted of the whole system to a certain not so low temp.
Now, for the calibration ;]
Ill post some information for Gary, herefishy and the rest of you guys so i can tune it up optimally but tomorrow cause im half asleep (i didnt buy you book yet Gary but its on my shopping list on one of the highest rank :D)
Is that like, "The checks in the mail"?... LOL
Now & then along the way, We Readers of the forums are treated to an exceptional thread
One that has all the key elements required to involve the reader on like a paperback novel
This chapter has been one of those threads IMHO
I for One would like to pass on my admiration to all the players involved for creating such an exceptional thread
– while being entertaining & informative as we All watch berkut develop his talents pic by pic
Cheers
Phase voyeurism at its best
;)
Thanks, but this is not the end of the project ^^
Didnt make any update for some time, so here are some pics:
http://www.berkut.neostrada.pl/4/5.jpg
The left compressor is a Sanyo, it poweres the II stage, on the right the 10k btu tecumesh.
Too bad ill have to unmount and rip the insulation off the Sanyo to change the oil from mineral to POE
http://www.berkut.neostrada.pl/4/6.jpg
Some wirering ^^ Red cables will be for the II stage and black are for the I stage (i have to change 1 wire in the I stage wirering so it matches). This electric box mounted on the top made the system much clearer
http://www.berkut.neostrada.pl/4/7.jpg
Notice that the compressors are in 1 line- they can be cooled better (2 compressors with 2 fans instead of 2 fans per compressor) and the flow around them will be better beacause by means of mounting a wall a tunnel will be created around them ^^. Also making sound proff insulation will be easyer. And the 2nd chamber will be air flow free s insulation on the pipes will work better.
http://www.berkut.neostrada.pl/4/8.jpg
The top of the cascade is where the computer stands ^^ The mainfold only looks similar to bowman's, the pipes are so thick beacause this makes them stronger, they have a bigger capacity and the freon flow inside them will be slower so the microdropplets can slowly flow down through them subcooling freon provided to the injectors through cap tubes coiled around that pipe.
http://www.berkut.neostrada.pl/4/9.jpg
And here's the 2nd part of the mainfold. Here the relief tank is connected, the compressor's suction line, soleneoid valve and cap tubes to the system go through here ^^
And here's the new baseplate with wheels so the system i a lil more mobile:
And the wheels, each wheel can handle 35-40kg so all 4 of them can handle about 150kg ^^ I tested them with my weight (85kg) and worked like a charm, like no weight is on them ^^
The wheels are a good thing. You won't regret using them. A cascade is heavy stuff.
Everything looks fine. Keep up the good work :)