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my first cascade
- Thread starter bazx
- Start date
- Thread Starter
- #23
just charged the hx and all seems to be going fine the temp prob is attached
right at the suction return so should show its worst temp
i will need to put a load in there before i will be happy with it
for the moment the inner 1/4 copper pipe of the hx has nitrogen in to stop any mosture
i went for 5 feet of .028 cap and it seems ok for now untill i load test
right at the suction return so should show its worst temp
i will need to put a load in there before i will be happy with it
for the moment the inner 1/4 copper pipe of the hx has nitrogen in to stop any mosture
i went for 5 feet of .028 cap and it seems ok for now untill i load test
- Joined
- Jun 24, 2005
You dont really want to be pushing the liquid up. If you want to make it right elevate your condenser about filter and your "desuperheater" above condenser.
Idealy you would have everything go down working with gravity not against it. But if you must have something go up make it gas not liquid. Reduces pulling and helps with oil as well as refrigerant flow. Sure the margin is dependant on velocities but why fight a force if you can have it work for you.
Oil separator/return would be anice touch too. No reason to push the oil all around when you dont need to, screw up your metering devices consistensy and pull. Not a huge deal to make the system work but it just depends on how well you want it to work. It makes a difference in the long run.
- Joined
- Dec 28, 2004
- Location
- Canada, BC, Gibsons
I still thing you need an accumulator on there so you don't liquid slug the compressor, other then that it looks like a beauty!
And as for the coil he has it perfect, it helps improve thermal stability & reduce the chance of slugging, but not enough to negate an accumulator.
And as for the coil he has it perfect, it helps improve thermal stability & reduce the chance of slugging, but not enough to negate an accumulator.
- Joined
- Jun 24, 2005
XeonStrikeForce said:
I agree 100% on the accumulator, he should put one in.
I dont know if we are talking about the same coil, but its your basic kinematics here, you dont want to work against gravity. As you said his inadiquate component layout in effect helps with the accumulator issue but one, not enough, and two it shouldnt, thats why you have an accumulator, so it can do its job and you dont have to make a rollercoaster of your piping so you can avoid putting one in. I am not saying this wont work I am just saying this is not the perfect way of doing it.
- Joined
- Apr 19, 2005
- Location
- Aix-en-Pce | France
Very sweet! 
- Thread Starter
- #29
Pf.Farnsworth said:
you must of missed this post
you seem to no a great deal about cooling systems and i am keen to learn from someone as your self please link me to some of your phase cooling projects and results
as i said at the beginning of this thread this unit is just a voyage of discovery
and once completed will only live for one weekend as my new comps have now arrived danfoss sc18 and sc21 and the real job will begin
below is a list of some of my cooling with results threads i look forward to reading some of yours and no dought learning a great deal
http://www.ocforums.com/showthread.php?t=448906
7900GTX Single Stage GPU
cpu ss
http://www.benchtec.co.uk/1/cpu-ss/1.JPG
First impressions of ln2
http://www.ocforums.com/showthread.php?t=431505
@ last the beer cooler is here
http://www.ocforums.com/showthread.php?t=420654
3.7ghz single stage fx57
http://www.ocforums.com/showthread.php?t=430903
phase cooled 1x7800GTX /vmod/ benchies 56k warnin
http://www.ocforums.com/showthread.php?t=408940
Vapochill GPU conversion 7800/6800 (56k warning)
http://www.ocforums.com/showthread.php?t=403071
thanks baz
Last edited:
- Joined
- Dec 28, 2004
- Location
- Canada, BC, Gibsons
Know = To understand, knowledge, ability to use rememberd data in a functional way
No= No, as in do not, to stop and action or not to start the action
No= No, as in do not, to stop and action or not to start the action
- Thread Starter
- #34
The oil separator was one I had left from some bits and bobs sent over by sandman so it was not made by me but should do the job
As oil builds up in the separator I have to open the red valve and let the oil return to the suction line and then back into the compressor
There is still to be a pressure cut off to go in this section just before
The gas goes into the hx
As oil builds up in the separator I have to open the red valve and let the oil return to the suction line and then back into the compressor
There is still to be a pressure cut off to go in this section just before
The gas goes into the hx
- Joined
- Jun 24, 2005
bazx said:
No need for sarcasm. I am no expert I just an ME major. If you are trying to say that I dont have much to show for all the talking I do you are correct, that has little to do with knowledge. You can look though the "lazy sunday" thread here for some of my work but its not really serious, more like play to test other things then to be cut up in to trash after tests. My attempt at a perfect chiller, or as good as I can make one, is nearing completion. I will be sure to post an illustrated worklog.
I run most of what I think on the subject past an HVAC engineer I live with so as to cross check with someone who has a good deal of expirience in the industry as a self check, if that makes you feel any better.
XeonStrikeForce said:
- Joined
- Nov 29, 2004
- Location
- Slovenia, EU
bazx i like your cascade...
Which evap will you use?
tnx
Which evap will you use?
tnx
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