t800's small, cased, daily cascade ;-) | WORKLOG

piotres · 06-19-2007, 08:53 AM

Hi

Some mounths ago t800 ask me about unit to use it daily. First we had thought about single-stage, we fast we have decided that performance won't be as good as t800 want and with big rotary compressor it'll be bit noisy

...so we decided to built small cascade, in metal case, using 2* 1/2 HP compressors . Goal is -60-70*C@200W .

Specs :

compressors: ASPERA NE2134GK 12ccm 1/2HP x2
evap: steeper evap 40 mm tall
XV: captube 0.8 mm/ captube 0.8 mm
HX: plate HX , 12 plates
condenser: 1.9kW + 230mm fan + 5W motor
refrigerants : R507/R23
oilseparator : HENRY S-5181
safety : RANCO cut-off with manual reset
case : metal case, 55 x 37 x 36 cm, silver paint
others: SLHX on 1st stage, small LCD HX's out temperature display, bitums sound insulation inside case, two 120 mm fans on the back of case + sunbeam CCFL red grills on them

On that photos case in only with layer of premier, no that's not silver finish

.

Later I've changed pipes configuration a bit, finally oilsep is before desuperheater

.

I plan to make electric wirings during some next days (maybe even today ?) .

I'm waiting for evap too

.

Best Regards
Peter

Brettbeck · 06-19-2007, 09:02 AM

Nice unit Peter.

But cascade for 24/7

?

piotres · 06-19-2007, 09:06 AM

Yes, why not ?

tiborrr · 06-19-2007, 09:26 AM

That's like 700-800watt/h of electricity added to the bill. Think about the environtment aswell, boys. You could run three pretty highend PC's with that much of power.

Small SS (1/5 to 1/3HP) for 24/7 is quite enough.

gosmeyer · 06-19-2007, 09:44 AM

Nice compressors.
24/7, Xtreme to say the least. Go for it!

Duh · 06-19-2007, 10:41 AM

pete tha unit looks superb

krullet · 06-19-2007, 10:51 AM

looking real good, but i have to say like some of others, cascade for 24/7

i think extreme is good, but this seems alittle to extreme, is he going to surf the net with cascade cooling

Starkiller42 · 06-19-2007, 10:59 AM

Hey Piotres, could we get a pic of the plate HX connection to the rest of the system? I'll be using a plate HX myself soon, and I just want to make sure I'm connecting it up the right way

. Thanks!

n00b 0f l337 · 06-19-2007, 11:40 AM

That and good luck insualting.

t800 · 06-19-2007, 03:04 PM

Hehe guys..cascade comes my gaming computer which i'm using something like 12/7 max. Altought i could run it 24/7, but there's no need that...i have other comp for that

Quote:

That and good luck insualting.

Well i don't need luck, because i have already tested what kind insulation system will require to keep condesation away.

piotres · 06-19-2007, 03:08 PM

Quote:

Originally Posted by tiborrr

Small SS (1/5 to 1/3HP) for 24/7 is quite enough.

For You - yes, but not for all

. Owner of this unit have already at home one cascade for benches, but now He want to have sth "lighter"

for daily using, but -50*C is too warm for Him

.

And that's it ..it'll be "light" cascade, using ordinary, not very strong compressors, and R23 gas

.

@Krullet : Yes, isn't that nice to check new posts on XS when our PC is cooled by 2stager ?

Quote:

Originally Posted by Starkiller42

Hey Piotres, could we get a pic of the plate HX connection to the rest of the system? I'll be using a plate HX myself soon, and I just want to make sure I'm connecting it up the right way

. Thanks!

Sent me PM with Your 'problem' , I'll try to help You .

Tomorrow new pictures - wiring ;-).

Regards
Peter

piotres · 06-20-2007, 08:32 AM

Hi

New pictures - wiring :

During work

.

Best Regards
Peter

Spacemaster · 06-20-2007, 08:43 AM

This is so beautiful, and how much is cost this baby?

sacha35 · 06-20-2007, 09:05 AM

Great looking unit piotres as allways, will be interesting to see how well this performs under 24/7 conditions, but get some sleeving or copex/spiral rap on them cables, i think that with the vibration of this unit the condenser could easy cut though the main power cables, at the best it will just short out but if the metal becomes live it could kill, so please protect the cables from damage and save life's

burton · 06-20-2007, 10:05 AM

man that looks good i couldnt imagine 24/7 cascade way to much power

[XC] gomeler · 06-20-2007, 10:52 AM

This is could probably be perfect for a high-clocking quad. Great build piotres, I'll be doing something similar for 24/7 use but with 1/10 HP compressors

1badhabit · 06-20-2007, 11:13 AM

Looks great Piotres, what kind of temps are expected?

wawroch · 06-20-2007, 12:28 PM

wow Piotres... you build small beautiful cascades........ Very Nice

We are waiting for tempes

Nosfer@tu · 06-20-2007, 12:43 PM

Quote:

Originally Posted by Spacemaster

This is so beautiful, and how much is cost this baby?

On Xs you dont get prices in puplic

So send the man a PM and he will happily quote you a price

And he is ONE HELL OF a Phase change builder/pot builder

n00b 0f l337 · 06-20-2007, 01:19 PM

You make your own cases and platforms and such? Got a bench break?

piotres · 06-20-2007, 01:51 PM

Thanks for all coments guys

.

Quote:

Originally Posted by Spacemaster

This is so beautiful, and how much is cost this baby?

I'll sent You PM in some next seconds

.

Quote:

Originally Posted by sacha35

Great looking unit piotres as allways, will be interesting to see how well this performs under 24/7 conditions, but get some sleeving or copex/spiral rap on them cables, i think that with the vibration of this unit the condenser could easy cut though the main power cables, at the best it will just short out but if the metal becomes live it could kill, so please protect the cables from damage and save life's

I bet even after 20 years of it's work cables insulation near condensor will be looking just like new

. Those hermetic compressors don't produce much vibrations, there aren't rotaries

. And insulation on high quality wires are thick and hard to damage

.

Quote:

Originally Posted by burton

man that looks good i couldnt imagine 24/7 cascade way to much power

Those cascade with that compressors doesn't eat much more power than one SS with 1HP rotary, maybe even same/less

.

Quote:

Originally Posted by 1badhabit

Looks great Piotres, what kind of temps are expected?

Only -60-70*C@200W. It's owner's need

. So I'll use R23 to make temperature warm, not R1150

. With R1150 I bet exactly same setup like this can make sth like -90*C@200W, maybe even colder

.
With R23 I bet I'll be only around -65-75*C@200W

.

Quote:

Originally Posted by n00b 0f l337

You make your own cases and platforms and such? Got a bench break?

Yes I make custom cases in company

. I don't plan to make any bench breaks in near future, nobody ask me about that till now

.

Thanks
Best Regards
Peter

runmc · 06-20-2007, 02:02 PM

Nice cascade piotres

Great work! I have three questions

1. What compressors are you using?

2. What is that little trick you used at the oil seperator? Can I see a good picture of tubing at oil seperator please?

3.Which evaporator? A Cryostar would also be a nice choice.

piotres · 06-20-2007, 02:06 PM

Quote:

Originally Posted by runmc

Nice cascade piotres

Great work! I have three questions

1. What compressors are you using?
Asperas NE2134GK 12ccm 1/2 HP LBP ..like wrote in first post (specs) .

2. What is that little trick you used at the oil seperator? Can I see a good picture of tubing at oil seperator please?

Any trick , just simple connections, really . OK I'll show pic tomorrow .

3.Which evaporator? A Cryostar would also be a nice choice.

Nothing special, just 40mm tall steeper with 3 mm channels . Yep, Cryostar is SUPERB .

Peter

n00b 0f l337 · 06-20-2007, 02:13 PM

What trick at oil sep?

Brettbeck · 06-20-2007, 02:24 PM

I don't really think that's a trick. Look carefully at the 9th picture down.

It looks to me as though the oil return has just been brazed straight to the service port of the compressor with a tee.