Nice and Powerfull 2 stages Cascade By Skirms_fr

[Pt1t]

A good Friend Of overclocking-Master.com made for me an
powerfull 2 stages Cascade :

Thanks To Skirms_fr

with

2 * LG NK134P R-407C
R507 / R1150
case ...

Here are some result

Xeon 3060
P5BDLX unmodded. (new one from rma and i want to sell it asap)
2*1Go crucial Ballistix Tracer PC8500

Without case





Ready to work !







IDLE 1.37v (1.4v bios)



IDLE 1.64v (1.7v bios)



Super Pi 1M Load , 1.64v (1.7v bios)



Super Pi 32 Load , 1.64v (1.7v bios)





And i had +- same evaporator temp With 1.84v on DFI , 32M loaded.

http://www.pt1t.net/Phase_Change/2Stages/32M_545X9.PNG

[Athens[2004]]

whats the spi32 load temp @ speedfan ? ,

nice.

[ryba]

nothing special :/

[Pt1t]

whats the spi32 load temp @ speedfan ? ,

nice.

~ - 81° but speedfan dont give good temp.

[Clemmaster]

nothing special :/

That's a 2 stages cascade

[expansionvalve]

What's that capacitor for with it's unprotected terminals?
Bit dodgy isn't it?
I also see no pressure switches/releif valves, are they hidden or am I blind?

[n00b 0f l337]

What sorta HX? I couldnt see it at first, but I see a cardboard thing now.

[Pt1t]

What sorta HX? I couldnt see it at first, but I see a cardboard thing now.

12 plates HX, it s inside the carboard ^^

[noobzed]

is it final looking ?

[Pt1t]

What's that capacitor for with it's unprotected terminals?
Bit dodgy isn't it?
I also see no pressure switches/releif valves, are they hidden or am I blind?

There -> IT was Hidden

[n00b 0f l337]

I see a small homemade copper expansion, but how bout oil sep?

[expansionvalve]

There -> IT was Hidden

what a relief, bad pun I know

[skirms_fr]

I see a small homemade copper expansion, but how bout oil sep?

there isnt oil sep

[n00b 0f l337]

Hmmm, no oil problems? Did you change to Zelol or something? Oil sep isnt just so oil doesnt' freeze too, you get higher efficiency with one...

[skirms_fr]

i never had problem with oil in a 1 stage , in a 2 stages and in a 3 stages

what is zelol ?

[n00b 0f l337]

Zelols a oil with a very low freezing point. So no problems skirms? Hmmm *going to make a thread*

[skirms_fr]

sicne the start i built cascades dods and chiller , i never had problems with oil.

on the 3 stage i have a small oil sep but no problems

maybe i m lucky

[Clemmaster]

Hmmm, no oil problems? Did you change to Zelol or something? Oil sep isnt just so oil doesnt' freeze too, you get higher efficiency with one...

Why would you get higher efficiency?

[LukeXE]

Why would you get higher efficiency?

Because oil isn`t acting like "insulator" inside evap, when there is oil separator in the system, which is catching all oil inside of it. With oil inside evaporator refrigerant is taking a lot less of heat than without oil on evaporator`s walls. So you`ve got higher evap temperature.

I think it works in that way.

[Big SturL]

Because oil isn`t acting like "insulator" inside evap, when there is oil separator in the system, which is catching all oil inside of it. With oil inside evaporator refrigerant is taking a lot less of heat than without oil on evaporator`s walls.

I think it works in that way.

I hope u meant: when there IS an oilsep.

[LukeXE]

I hope u meant: when there IS an oilsep.

Yes, I changed that. My mistake

[skirms_fr]

Because oil isn`t acting like "insulator" inside evap, when there is oil separator in the system, which is catching all oil inside of it. With oil inside evaporator refrigerant is taking a lot less of heat than without oil on evaporator`s walls. So you`ve got higher evap temperature.

I think it works in that way.

assumption ?

[LukeXE]

I`m in 90% sure about that.

That same situation is with R290 and R22 in autocascades. With R22 I`ve got higher HX temperatures than with R290. Why ?

The answer is simple. R290 is much better oil carrier than R22 so while using R290 in autocascade, there is almost no oil inside HX, it`s still flushed and carried by R290 to compressor. While using R22 in HX is a lot more oil and it`s acts like insulator. So that`s why I achieved higher temperatures with R22.