THIRD STAGE IS DONE !!!!
Vacuuming now !
How long I have built that cascade ? 7 days ?
THIRD STAGE IS DONE !!!!
Vacuuming now !
How long I have built that cascade ? 7 days ?
Great Luke! Let's see some photos
!
My girlfriend will kill me if she reads this, but i doubt she will ever do... at least i hope so.Originally Posted by LukeXE
THIRD STAGE IS DONE !!!!
Vacuuming now !
How long I have built that cascade ? 7 days ?
I LOVE YOU!
cya on sunday my friend... if our X6800 could cry for help, it would, i'm sure.
Last edited by symphy; 03-08-2007 at 02:04 PM.
Photos tomorrow ! I must borrow digicam from my lady
great, we are waiting for your entry to -150*C club
LOL no way..thats insaine. Look forward to photos Luke and hope you hit -150c
Ehh.....still problems ;( Hand valve for oil return is leaking, and I don`t have another one to install !! GRAUUU !!! I can`t get it in my town, I must order new one but it will arrive to late !
Another problem is that relief valve on I stage opens at...15BAR !!...I`m depressed...I`m out of R23 at this momment, need some R744 for I stage instead R23...
The only one thing is that oil separators are working very well, cascade worked about 2h with -135*C on evap (bad thermocouple) and no freezing or something
Last edited by LukeXE; 03-09-2007 at 08:41 AM.
ok, so some news from "battle" place.
Oil return valve doesn`t leak anymore !
I found leak on suction line, now it`s OK !
I disconnected relief valve without vacuuming all gas !
I and II stage without leaks ! III stage testing at 15 bar.
Today vacuuming and charging with pure R14 and load test !
STAY TUNNED !
Really good news!
Yeah, definatly. Yesterday i was a little afraid of not getting this unit to CeBIT, but today it seems that we will really have to drive 1500 km 2morrow.
I'm really very happy and waiting for temps
1500K is nothing to worry about Symphy. Luke i wish you all the best in getting the beast to work dude!!
Pete
I hope that I can see the unit tomorrowI will drive some of the kilometers..
Hahaha bring luke along and he can tune in the backseat :P
If you have a cooling question or concern feel free to contact me.
II stage temp
I stage temp.
Now waiting, oil frezzed in HX in stage II ;] Wanna test it under load within 15 minutes (after cup of tea).]
and no argon ! I ordered it, but someing people closed shop today with argon, but I told them yesterday, that I will buy it today !
Last edited by LukeXE; 03-10-2007 at 02:51 PM.
very nice and fast builid luke
Frozen oil is bad right?
Oh and biteing your nails is bad Luke!!
Not really bad, but it costs time
I'm with you Luke
Very well done until now
Problems, problem...unit won`t be at CeBIT, I am really sorry...
I stage is strong, holds load very well, -55*C rock stable !
II stage...well, I expected a lot more...sometimes it hits -115*C (!), sometimes it`s not able to hit -30...usually it`s around -50*C at the plate Hx exit...
From what I see, to flood Hx I need a hugeeeee amount of ethylene, but then , when HX is flooded (-100 at exit), at III stage I`ve got so
As i wrote at MSN, nothing to worry about. You did your best and that is what really counts.
If the unit won't be at CeBIT, you have enough time to get some argon and fix that second stage... and probably some changes on third of problems occure there.
We will organize another unit for CeBIT, that's for sure, even if there is very little time remaining...
Thanks for your (amazing) try Lukasz, i know we both wish that this beast would work now, but as it doesn't - take all the time you need and show us some really cold temps, our conroe will wait until that thing arrives.
from my calculations you need around 7 liters expansion tank for R14, use 80 cms of thin cap tube to connect exp tank to low side, always place exp tank higher than compressorFrom what I see, to flood Hx I need a hugeeeee amount of ethylene, but then , when HX is flooded (-100 at exit), at III stage I`ve got so
i still dont understand how can you guys make ethylene cascades without expansion tanks:p
I`ve got expansion tanks, for 1 and 3 stage
... you won't see me offline before 4 am, no chance
Sorry, insider.
Yo Luke I was afraid of this, you need to get a higher pressure going on the high side. Something like autocascading it and having propane condense or the like will definitly bring your pressure up.
If you have a cooling question or concern feel free to contact me.
that sucks about the very low pressure in the third stage.
How big is that look, maybe ya need a bigger compressor for that stage also. Sometimes low pressure means compressor cant pump enough, also what low side pressure you have?
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