STEVEXXXXX Posted November 25, 2004 Posted November 25, 2004 Hey boys. So as I was mentioning earlier in a thread I am currently constructing an autocascade to better cool my computer. I am going for about -60 through about -70 under load with one of these babies. This here is a basic drawing of an autocascade. An autocascade is a single compressor 2 stage system that utilizes a phase sep to seperate a high stage and low stage gas in which the high stage gas will eventually cool the low stage gas which will cool the cpu itself through the evap block. A basic overview of most of the parts before I started to build everything. I'm useing an Oxygen/Mapp gas tourch for brazing. The discharge desuperheater with the filterdrier brazed in for the discharge line leaving the compressor. The oil sep is a long tube packed with steel wool which seperates the oil from the refridgerent so the oil doesn't freeze and log up the evap at very low temps. The phase subcooler here works to subcool the low stage gas so it's easier for the interstage HX to condenser the low stage into a liquid. The top and bottom pipes are for the suction line refrigerent flow through and the 2 lines on the side are where the low stage gas flows in and out. The HX is 1/4 pipe inside of 1/2 pipe. The 1/2 pipe will run the high stage evap and condense the low stage gas in to a liquid with it's low temps. Here's a closer up pic of the exits for the HX The very basic overview of what's going on is below the oil sep needs to be put verticle and the condenser needs to be added. Here is the cut condenser where the 2 gases will be seperated. The low stage gas will float to the top and out and the high stage will be condensed where it will be metered via captube to the interstage HX. I will try my best to update this thread as go on my building experiance. Any comments or questions are greatly welcomed Quote Share this post Link to post Share on other sites More sharing options...
Sveach Posted November 25, 2004 Posted November 25, 2004 I know nothing about almost anything that you said. So uh..good luck and keep us updated Quote Share this post Link to post Share on other sites More sharing options...
yiotta Posted November 25, 2004 Posted November 25, 2004 Let me guess, you build your own still's and make homemade moonshine dont ya?!! Quote Share this post Link to post Share on other sites More sharing options...
spathalogic Posted November 25, 2004 Posted November 25, 2004 Awesome; Keep up the good work! Quote Share this post Link to post Share on other sites More sharing options...
visK Posted November 25, 2004 Posted November 25, 2004 i dont really notice what he said ... everything just looks so pretty i really wanna see how this does now good luck Quote Share this post Link to post Share on other sites More sharing options...
Duke Atreides Posted November 25, 2004 Posted November 25, 2004 I can make a paper airplane! Very nice, you are or will be quite the engineer. Quote Share this post Link to post Share on other sites More sharing options...
Newport Posted November 25, 2004 Posted November 25, 2004 Now if only he will post the overclocks on his Pentium 4 ES chip.... Quote Share this post Link to post Share on other sites More sharing options...
ccokeman Posted November 25, 2004 Posted November 25, 2004 Thats a pretty interesting concept. I work on coolers and cooling systems and grasp what you are trying to accomplish. Will you be making your own evaporater(Cooling head)? I would like to see the finished product and also some costs involved. What refrigerant will you be using,134a,404a ? Quote Share this post Link to post Share on other sites More sharing options...
kendellrt Posted November 25, 2004 Posted November 25, 2004 An autocascade is a single compressor 2 stage system that utilizes a phase sep to seperate a high stage and low stage gas in which the high stage gas will eventually cool the low stage gas which will cool the cpu itself through the evap block. A basic overview of most of the parts before I started to build everything. I'm useing an Oxygen/Mapp gas tourch for brazing. The discharge desuperheater with the filterdrier brazed in for the discharge line leaving the compressor. The oil sep is a long tube packed with steel wool which seperates the oil from the refridgerent so the oil doesn't freeze and log up the evap at very low temps. The phase subcooler here works to subcool the low stage gas so it's easier for the interstage HX to condenser the low stage into a liquid. The top and bottom pipes are for the suction line refrigerent flow through and the 2 lines on the side are where the low stage gas flows in and out. The HX is 1/4 pipe inside of 1/2 pipe. The 1/2 pipe will run the high stage evap and condense the low stage gas in to a liquid with it's low temps. Here's a closer up pic of the exits for the HX The very basic overview of what's going on is below the oil sep needs to be put verticle and the condenser needs to be added. Here is the cut condenser where the 2 gases will be seperated. The low stage gas will float to the top and out and the high stage l be condensed where it will be metered via captube to the interstage HX. Umm...ok. Quote Share this post Link to post Share on other sites More sharing options...
STEVEXXXXX Posted November 25, 2004 Posted November 25, 2004 (edited) Thats a pretty interesting concept. I work on coolers and cooling systems and grasp what you are trying to accomplish. Will you be making your own evaporater(Cooling head)? I would like to see the finished product and also some costs involved. What refrigerant will you be using,134a,404a ? It's a 2 stage system meaning that I will be using 2 gases I'm going to start off with R290(Propane) and R744(C02) then later switch the heavy duty stuff R22 and R23. R23 is a HPG that evaps at about...-82.1C. Yes, I'm making my own evap. My buddy's dad owns a CNC machining shop, so Im probably going to have it done by the machine then assemble it myself. More about that here http://www.airliquide.com/en/business/prod...ex.asp?GasID=66 @newport, maybe you should have read the thread, they were posted... Edited November 25, 2004 by STEVEXXXXX Quote Share this post Link to post Share on other sites More sharing options...
lt_navvara Posted November 25, 2004 Posted November 25, 2004 what about a for-dummies guide on how to build one of those? please explain what a low stage and high stage gas is Quote Share this post Link to post Share on other sites More sharing options...
ayampirupiru Posted November 25, 2004 Posted November 25, 2004 I think this should be called 'homemade refregerator unit for PC" Quote Share this post Link to post Share on other sites More sharing options...
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