R507 single-stage @ - 88.1 *C :-D

[piotres]

Hi

Some weeks ago I got few rotary compressors ...so I decided to make a single-stage unit with one of that devils, to check how they perform .

Specs :

Compressor: Sanyo C-1RV137H11AA
evap: chilly1 patern (made in Poland )
holddown: PCV 10mm
XV: CPEV Fach "PZ"
condenser: 1 kW, 2 row, alu-cu, cooled by orginal 230 V fan
Refrigerant : R507
Case : Chipboard case, dimensions 51x39x42 cm, painted black, alu mesh on the front panel
others: SLHX



The heart of unit





Evap ..same as always



Making a SLHX





Some pipe work





Filling with R507



That's first run frost



Insulation complete and electric instalation done



Case just after painting .









Complete unit

Let's see what that baby can do :



Very "small" vac .. only sth like -0.97 bara... LOLLL



Some nice numbers, remember that's just pure R507 .

Have You ever seen lower temperature in Single-stage unit ??



Mine A64 3000+ Venice benching rig



That's stressed with 3000+ Venice @ 3211 MHz on 1.82V ... -55.5*C evap loaded (during SuperPI) , CPU around -15 to -18*C .



That's ...hym ..idle ..let's say that's idle - mine CPU has a coldbug when it reach -30*C on CPU, so after 5 second of end of SuperPi run I have got -60*C evap and freezed Windows ..so really I can't test it in idle I hope will be able to run @ sth like -60*C evap (maybe evan bit lower) idle on simillar CPU like mine .

That unit is currently for sale .

Regards
Peter

[andL64]

looks really awsome !

great temps and nice casing! really never seen this temps on ss

i want to get R507 for my 1st stages for the cascade should be better than R290

[Vapor]

Wow! That's awesome! How does would it hold up against a dual core load?

OT: Is that the pic I took (of GHZ's Opty 148) in your background? If so, I have a much higher-res version if you want

[Waus-mod]

I love it.. i really love it.
Im not into but is the loaded themprature not a high?

[piotres]

Originally Posted by Vapor

Wow! That's awesome! How does would it hold up against a dual core load?

OT: Is that the pic I took in your background? If so, I have a much higher-res version if you want

I think it should be sth about -50*C on evap loaded with CPU like FX-60

That pic on my background is ...Yes it's Your's goodly Opty 148...I just like that pic ...very artistic .

Regards
Peter

[epion2985]

Thats a nice peace of work right there.

Yes I have seen a few single stage units here in -80's with no load and -50's with load. Still damn nice.

Whats the hp, displacement, power consumption, and noise on that rotary?

[krullet]

got damit thats some nice work, ing nice temps

[Athens[2004]]

Very nice job piotres , i can see that u brazing some metal around [outside] the evap so u can mount the hold down . U can do it more easie -> just drilling around the evap[outside] 2mm and put a safety instead of brazing .

+ So u can remove the safety anytime -> remove the holddown and change insulation <---[example given]

[Gautam]

Excellent work! I've been waiting a while to see someone push the SS envelope a bit harder. With all these cascades and DI/LN2 containers floating about, its almost as if people forgot about 'em. :p

[piotres]

Originally Posted by Athens[2004]

Very nice job piotres , i can see that u brazing some metal around [outside] the evap so u can mount the hold down . U can do it more easie -> just drilling around the evap[outside] 2mm and put a safety instead of brazing .

+ So u can remove the safety anytime -> remove the holddown and change insulation <---[example given]

Thanks for advice Athens, but with mine way of mounting I can change the brackets easy too ...I'm using seger ring, so I can swap eg. a GPU bracket on the evap in some seconds I think that, when You write "safety" You was thinking about a ring around evap, am I right ?

Regards
Peter

[boostedevo]

Now THAT'S a single stage

[PoL]

Sweeeeeeetttttt..... will be hard to decide.

[Athens[2004]]

Originally Posted by piotres

You was thinking about a ring around evap, am I right ?

Regards
Peter

yES. <---- my awesome English

[gclg2000]

Looks good...

Is that a "T-couple" probe with a type "K" sensor plugged into it???

[piotres]

Originally Posted by gclg2000

Looks good...

Is that a "T-couple" probe with a type "K" sensor plugged into it???

Yes it's "K" ... Voltcraft K102 is thermo designed for K-probes only

[dinos22]

whoa...........that's nice dude


i have a little brother blackbox with R290 and 1HP rotor hheheh.......i'm waiting for gas upgrade

i reckon your idle temps are lower than -29C as my idle temps at 3.5GHz with 1.66v are -31C....shame the CPU can't take it real cold...........that's a monster vcore

[piotres]

Originally Posted by dinos22

that's a monster vcore

Hehe, during mine phase-change tests I'm always trying to push mine Venice to give the biggest load he can give ...so I always set 1.55V +123% in bios

[Weee]

Wow, LOADED temps, what a concept.. that's really awesome work there!

[kayl]

Originally Posted by piotres

Some nice numbers, remember that's just pure R507 .
Have You ever seen lower temperature in Single-stage unit ??
Mine A64 3000+ Venice benching rig
That's stressed with 3000+ Venice @ 3211 MHz on 1.82V ... -55.5*C evap loaded (during SuperPI) , CPU around -15 to -18*C .
That's ...hym ..idle ..let's say that's idle - mine CPU has a coldbug when it reach -30*C on CPU, so after 5 second of end of SuperPi run I have got -60*C evap and freezed Windows ..so really I can't test it in idle I hope will be able to run @ sth like -60*C evap (maybe evan bit lower) idle on simillar CPU like mine .
That unit is currently for sale .
Regards
Peter

i think that is the lowest noload temp that i have seem.
Drewmeister still makes the coldest single stage loaded systems though at -60c load hight volts/OC


peter are you entering the autocascade compertition. that thing with some ethylene might hit -100c

[johann]

Nice man! That Rotary pulls a wicked vacuum sweeet.

[Sub zero]

Great piece of work who wil be the first to -100 on a SS

[fatty]

Very nice job Peter

[piotres]

Thx Guys

Kayl, yes I'll rather enter to autocascade competition, but begining of July it's the eariest time I'll start work on auto-c ...first I must pass my maturity exam in may, than build a single-stage(s) and 2-stage cascade in June, and maybe in July I'll start work on auto-c


Peter

[Jaco]

impressive work ! ( again)

[andL64]

nonload is insane really but load i think is "only" very good, lol

well i didnt reach that temps on my co2 cascade LOL but i can hold the temps better, and with dc

but this work is really awsome!!! give me one of these rotarys :P

seEn