Symphy`s 3 stager

[LukeXE]

So as I promised, new unit for Symphy, 3 stage cascade (with some extras from me, like I stage autocascading).

Compressors - 15800btu, 10000btu, 10000btu
Condenser - brand new 1,9kW
Evap - chilly1 clone, made by Duniek.
Gases - R290/R23/R1150/R14/Argon
Safety devices - two cut-off devices (for low and high side) and one relief valve.
Heat exchangers - two "pipe in pipe" HX for autocascading stage and one plate HX for R1150/R14.
Extras - maybe SLHX, expansion tanks, manometers .

Expected temps...For sure about -50C loaded on I stage, that should give me nice second stage temps and finally third stage temps too, so if everything will go in good way we will see -150C -125C loaded would be great.




Plate HX






evap not cleaned yet, I had really hard job with that sleeve because of insulation, which is...32mm thick ! Really crazy, but I want to minimalize heat losses on suction line.




The most important - safety. Two cut-off devices with auto-reset and one relief valve. Wdrzal



Expansion tank, I`ve got one more in my cellar.



Brand new condenser with fan. (lol, like almost everything, only 15800btu rotary isn`t new).



Three hearts of the system.



Everything together.

I must finish that unit until 9 of march, so I have a lot to do ! Probably everyone who want see that unit in real, just can go to CeBIT and see it.

Wish me luck guys, I will need it !

[n00b 0f l337]

Good luck Luke, major subscription.

[piotres]

Insulation near evap is ...overklill .

I don't think that LGs are 10000 BTU, rather 8500-9000 BTU .

I wish You luck .

Peter

[LukeXE]

Insulation near evap is ...overklill .

I don't think that LGs are 10000 BTU, rather 8500-9000 BTU .

I wish You luck .

Peter

s*hit

9000btu is ok too

[TopherTony]

Good luck Luke, major subscription.

Ditto.

I watch with great anticipation!

[Blaster]

go for it Luke!

bare in mind that argon will only boost R14 below -105, methane would be better option for last stage

how many lts is that exp tank?

[LukeXE]

I think around 0,75l.

[n00b 0f l337]

bare in mind that argon will only boost R14 below -105, methane would be better option for last stage

Subcooler

[Blaster]

yes subcooler works great, SLHX on the other hand are not so great

[before]

s*hit

9000btu is ok too

What model is it?

Looks like a very promising project!

[LukeXE]

Lg Nk134pad

[before]

It's a ~ 7900Btu/h... same one than my late second stage. I'll use it for a SS now.

Good luck buddy

[bazx]

its good to see you make somthing i will understand


i always like to see your work here


good luck you will need it 8 days left

[kayl]

this is going to be a nice system luke, cant wait to see the results.
I have that exact same plate HX

[LukeXE]

Okay, today I will do some most important job like mounting everything on black wooden base plate + some brazing, maybe today I will finish I stage (I hope).

[symphy]

My internet is down right now (f k!), so i can't read the updates luke will be posting the next days... damn I'm writing from the PC of a friend...

Hope everything will work like expected (within the time limit )

Looks very promising until now, and... i love the blue sleeving...

Good luck buddy!

[n00b 0f l337]

Congrats Symphy on getting one of the best cooling devices for computers that Luke has ever conceived.

[LittleDevil]

Nice stuff there, we are waiting to see -150°c

regards

[Moc]

What kind of oilsep do you use? selfmade-> mapp bottle?

[LukeXE]

I wanted to use Temprite oil separators, but don`t have them. So probably I will make two from 35mm pipe (about 40cm tall).

[Brettbeck]

Awesome Luke! Lets see -150c .

[Pete]

Insulation near evap is ...overklill .

I wish You luck .

Peter

Ditto all the above Luke. That insualtion near evap is ugly as sin. I like the thickness of the rest of the suction line, guessing thats 32mm OD....?

I would defo change it, ether layer it nicer or cover it up!

[n00b 0f l337]

Yeah maybe just move to a solid tube like donut, instead of tape.

[LukeXE]

Erhmmm....the rest of suction line`s insulation has 32mm walls...Near the evap I think it`s about 40mm, maybe less.

I think it`s ok, here is not miss world competition but xtreme cooling, we are at XtremeSystems or at Miss World 2007 ?

[Pete]

Should i chnage my name then Luke?? Miss World 2007??

Getto can be cool, nice getto anyway. I see blaster on his 2 stage rotary cascade has done the same but put some stuff over his!