small cascade

well this is to be a smal, fiable cascade, not an extreme one.
i'll try some blends becouse i want low pressures, i dont want hot compressores, oil problems, extreme condensation, etc, the temps i want will be -70 to -80 load :)

for extreme i'll start a 3stager soon :)

it will use an nl11f from an promy and an cl8.5 from an vapochill ls

this pic is when i put everything together to get the sise of the box, it will be
53x37cm and 30cm tall.

http://img274.imageshack.us/img274/7875/1kz1.jpg

suction after soldering, before be cleaned
http://img522.imageshack.us/img522/7910/mangayg8.jpg

hx not best looking one but who cares? it will be insulated :D
http://img122.imageshack.us/img122/1269/hxdj1.jpg

co2 on the house for some testing's
http://img118.imageshack.us/img118/9770/co2wy2.jpg

probes, auto shut-down, pressure reading
http://img112.imageshack.us/img112/3922/safega5.jpg

http://img529.imageshack.us/img529/158/manga3xs4.jpg

http://img125.imageshack.us/img125/3748/manga1bz8.jpg

http://img176.imageshack.us/img176/1264/manga2nq4.jpg

more soon :)
:toast:

Sexy Ricky :D

You want use co2 for low stage ? If yes, remember about propane in that stage too

Quote:

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Originally Posted by LukeXE

Sexy Ricky :D

You want use co2 for low stage ? If yes, remember about propane in that stage too

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That would be nice. R507 for the first stage ?

Yeah, R507 for first I would use, CO2 + propane for II stage (propane will flush dry ice from evap)

Who will be the lucky owner of these pocket cascade ??:)

Nice start :D!

:slobber: amazing, pocket cascade including 2stages power:eek:

R23 would be the best refrigerant for the temps you want.
Looking good :)

Looking good. How much is this going to cost when you're done?

ive seen SS' much bigger, nice work so far ricky, looking forward to seeing it done :)

good looking ricky;)

That hx looks a little less, got a few dents(folds?) in it :s

hi dudes :D

jort, it has 1.8meter +- the same of predator cascade it will be ok :)

Nice little surface area adition on the compressor, I do that for rotarys :)

Subscribed :p any updates ?

Luke co2 is one of the worst gases for refrigeration when your goal is coldest as possible,as you know dry ice forms at way to warm of a temp,you can continue this battle by different methods but by switching to another gas is a much better choice ,especially if you want to advance your knowledge and temperature scale further down the negative scale ----C.

Quote:

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Originally Posted by cold_ice

R23 would be the best refrigerant for the temps you want.
Looking good :)

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agreed, or perhaps r170 (ethane) :)

Although Overklokk build a small r290/r1150 gpu cascade once with a Danfoss FR10a and a FR11B and that seemed to work ok. Still the pressures of r1150 for such a small compressor probably isn't the best idea.
http://www.xtremesystems.org/forums/...ad.php?t=89792

Quote:

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Originally Posted by cold_ice

R23 would be the best refrigerant for the temps you want.
Looking good :)

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:toast:
damn that is the best hx i ever seen:D did u run cap tubes thru it?
go go go
regards,
q

Quote:

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Originally Posted by wdrzal

Luke co2 is one of the worst gases for refrigeration when your goal is coldest as possible,as you know dry ice forms at way to warm of a temp,you can continue this battle by different methods but by switching to another gas is a much better choice ,especially if you want to advance your knowledge and temperature scale further down the negative scale ----C.

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I know that wdrzal, Ricky has written, that he will do some test with co2, so my advice is to use R290 with CO2, that will help with dry ice problem :fact:

For sure R23 is really good refrigerant, I think the one of the best with ethane in -90*C refrigerants range. Next jump is ethylene...

Quote:

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Originally Posted by quintus

:toast:
damn that is the best hx i ever seen:D did u run cap tubes thru it?
go go go
regards,
q

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dabit made such an HX a couple of years ago, not sure if he finally used it on his 210K project.
I tried to make one like this 1 1/2y ago but my brazing skills where not so good :(

Quote:

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Originally Posted by LukeXE

I know that wdrzal, Ricky has written, that he will do some test with co2, so my advice is to use R290 with CO2, that will help with dry ice problem :fact:

For sure R23 is really good refrigerant, I think the one of the best with ethane in -90*C refrigerants range. Next jump is ethylene...

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508 is beter!!! look at unseen's cascade that 631 cedar mill is puting out 300+ watt lol(i sthis for real? the site said so) best mass(kick ass of ethane etilene r23...), myself i consider it beter than 1150

well, thanks ppl, i'll use co2 for testing, never used co2, let's see how it works, maybe 290/co2/1150, this is what i have for now :)

i'm waiting for box to continue working on the cascade

:toast:

Quote:

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Originally Posted by quintus

508 is beter!!! look at unseen's cascade that 631 cedar mill is puting out 300+ watt lol(i sthis for real? the site said so) best mass(kick ass of ethane etilene r23...), myself i consider it beter than 1150

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9kg of R508B cost almost 3700€ here. I don't know why its so expensive, but I think thats too much money for only some gas...

cold_ice:
you are lucky. almoste twice the price for 14kg in sweden! 7600€+vat, INSANE!

Nice small cascade there ricky ;)

OT @ tim-: could you please PM me some refrigerant prices from sweden if you know them (R404A, R507, R402A etc..)? Refrigerant is insane expensive in norway :( It's like 1600 euros for 12 kg of R404A.. So if the prices are better in sweden I might go there and buy some :D

what pipe you put inside to flex line? (on this photo http://img522.imageshack.us/img522/7910/mangayg8.jpg :rolleyes:

btw nice cascade is comming
and this building will be very cheap for you :toast: