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Variable speed rotary?!
Wow, I think you have something REALLY neat in your hand.
I presume it does have some kind of VFD circuit to change the speed of compressor which would be awesome.
There are couple of reciprocating compressor with the capability (A/C... all DC can do it), but the price is a little too high and VFD portion of it does take additional space.
No idea how it works, to be honest, I'm actually a lower classman in high school, just trying to learn how to do everything:)
But yeah this will definitely be awesome, the power of a rotary without the noise, I just have to figure out where the sweet spot is for noise:performance. But that will have to wait for a little bit, due to wrestling I have like no time on my hands anymore to work on it
Hmmm load testing at 230w... :)
Compressor is only consuming about 285w :)
In comparison, previous prototype would be consuming about 325w or so under same load condition. Efficiency, efficiency :)
http://www.vapoli.com/Images/Forum/IMG_0185.JPG
This is the limit right now unless I want to put another trick up the sleeve. No suction line accumulator in use and almost 0 flood back under no load :P
customer originally wanted 250w tuned but that would mean killing temperature by about 3-4c. I am not sure if that is worth it at this point for 20w capacity as the trick involves that unfortunately. There was some complication I originally had with Cryostar evap that has been resolved after some reworking of unit.
I better ask customer what he prefers... honestly though, i think this is better route to go with 4c improvement on temp for similar load where 6600 q0 stepping stopped for 1.7v or so :)
beautiful!
wow... efficiency! great stuff. How do you like the superheat/subcooling thermometers?
peace
Which one? :PQuote:
Originally Posted by teyber
I love the fluke, I also like fluke infrared I have, and of course the yellow jacket digital refrigerant analyzer. BK precision one you see was actually acquired more for data logging (it has serial port connector and software which I bought separately while back) capability for some other projects... much cheaper than getting fluke 54 with software package (about half of that). I am really running out of number of thermometers for some projects and been eyeing at 4 to 8 ports meters for a while :P
PS) if you are talking about the blue clamp one, I am not using it for that actually, I am using it more for condenser efficiency check... subcooling is done at condenser outlet which is not easily seen on picture :) I was using the YJ analyzer for that one till end of it (I really don't like filling hose full of saturated liquid/vapor on manifold hose and take it out of system as soon as I gain enough data).
haha you and your toools :P
i was actually talking about this thingy:
http://cgi.ebay.com/FIELDPIECE-Super...QQcmdZViewItem
Not that one but the one that looks like that?
It works okay but not great to be honest. For something larger than 1/4 would work great but for 1/4".... it's bit loose.
yey, its the same with flukes pipeclamp.
honestly, on our small units I prefer to use those wireprobes and just tape them on the pipes.
That include fan on consumption?
i don't think so, he says "compressor consumption is only 285w"...Quote:
Originally Posted by n00b 0f l337
Yup compressor only. Fan is like 4-5w :P
Hahaha true, damn these 110vac are ineffcienct in comparison ;)
jin unit will be in my hands in 2 days
first the best air for my cpu
second i did water
then th big jump to phase is here after some work I can't wait
well its a day early and no load test done will in coming weeks but some pics
air ok
water better
phase is here to stay :clap:
Eeek if that is the temp reading.... -_- as I was talking either temp probe is mislocated or... flooding back. Don't run it too long without cpu on it :) (Do you hear any .... say water dripping on boiling oil kind of noise? also how long did it get to start cooling down once you turned it on?)
nothing was changed turn on test sound was like a ac unit didn't hear but first time running one for the computer. ran just till it was at -36C then off after some pics. unit did take some time. turn off at -36 just to protect unit was vary slow going down after -30 and i didn't see any thing lower.Quote:
Originally Posted by jinu117
i can time it to say -10 then -20 then -30 then -36 for you and get times up in about 1hr
That would be helpful :) One thing for sure is, gotta do it when compressor is cool (when it is warm it takes less time than say... complete cold boot)
But first I would like you to slap it on computer when you have time and get me some temp readings :)
roomtemp = 26.7C
start temp = 28C
20c = 1min 39sec
10c = 2min 05sec
0C = 2min 53sec
-10C = 3min 53sec
-20c = 4min 46sec
-25 unit not going donw as fast
-30c = 7min 28sec
-31c = 8min 15sec
-32c = 9min 49sec
at 13min stop unit not moving any lower then -32
-33c =
-36c =
roomtemp end = 27.8c
will do computer test asap tomorow if i can. i can't setup new mobo waiting on waterblocks so will use my old setup q6600 b3 at 3ghz.
Slow to be honest with you but we will let CPU judge that when you get a chance :)
Yup the cryostar edition took longer than expected unfortunately due to some complication of acquiring parts, testing it throughly and than.... painting painting painting... since it is one of the 2 prototype case I had in hand. Unfortunately, the case will have some redesign on next one as I am having major complication with the company I got this prototype from to begin with. (Just like almost everything I had complication with at one point or another... controller/evap/condenser/compressor...... -_-;
http://www.vapoli.com/Images/Forum/IMG_0188.JPG
http://www.vapoli.com/Images/Forum/IMG_0199.JPG
http://www.vapoli.com/Images/Forum/IMG_0203.JPG
ok so i have a pc up now but not the one with jin unit still waiting on 4 waterblocks for the final parts. will post as soon as i can test.:up:
Quote:
Originally Posted by jinu117
nice work jin, how big is that compressor?
I know my 1/2hp units with fans also use around 285w.
Jin are those cpu head enclosures your creations on the mill?
Nice to get 1/2 hp unit with 285w for 230w load if you managed that ;) Idling the unit consumes about 200w :P Copressor is rated for 1/3 hp but it is energy efficient line of embraco (displacement is 9cc... figures)
The enclosure is cryostar evap enclosure that came with it which isn't too far off from what I have had for prototype (if you remember about 1.5 years ago or so :P Damned money spent on e-machine shop... )
I am still not 100% decided on which of 3 designs to go for for final enclosure idea.... but first gotta wrap up that GPU evap enclosure.
i still got those pics you emailed me i think somewhere when you first started the machining :yepp:Quote:
Originally Posted by jinu117
#1. This was a troublesome unit. Local customer brought in not working Mach II GT. Basically he managed to snap off cap tubing and went to local refrigeration guy to get it fixed and has blown what he says 20 fuses after that. Upon inspection, compressor was making racket and further diagnose was needed. I found out the compressor has completely blown it's valve. Cause of it sever overcharge + blocked cap tube.
Compressor was replaced and cap tube was repaired once again and reduced some length of cap tube to accomodate a little more capacity.
Testing at 200w as I have no faith in this evap beyond that...
http://www.vapoli.com/Images/Forum/MachMod/IMG_0216.JPG
#2. Well, another one of reworking of custom built unit. Original unit was encased in v2000 but customer wanted ss case. Also, the tuning was done quite a bit differently than what I would have preferred/customer would have preferred. One thing I noticed was that as builder has mentioned it held the load designated in flying colors (kudos to that, first unit out of 6 builders unit I had to touch that did what it says it did). However, I can't agree on way of tuning with compressor reaching 95c....
I had to take out oil for precaution and it now has new oil in system. It's leak testing ATM and will be insulated, encased, etc when case arrives.
I've put something different again on this thing and hoping to get some good result out of this. I believe the compressor is NF11FX (can't tell with no label and some painting done on it...)
http://www.vapoli.com/Images/Forum/Revisit/IMG_0219.JPG
http://www.vapoli.com/Images/Forum/Revisit/IMG-0221.JPG