3 stager build, part two.

[noobzed]

Is this unit moveable ?

[symphy]

with two persons it should be.

Design was without case, i'll get one when the unit arrives.

[teyber]

ok, gotta 4 photos, unit is insulated in let`s say, 90%. not insulated fully due the leaktest.

http://img90.imageshack.us/my.php?image=ssa40094vf8.jpg

http://img201.imageshack.us/my.php?i...sa40095qc0.jpg

http://img90.imageshack.us/my.php?image=ssa40096nh7.jpg

http://img90.imageshack.us/my.php?image=ssa40097sr6.jpg

I`ll do better shots tommorow after vacuum and filling with gasses. I`ll do shots in home, not that mess like in cellar.

Not everything connected, like expansion tank, manometers and cut-off switches. Will do that when cascade will work.

L.

great great great... you turned this into a complicated build with charecter, i would not classify this as ghetto at all... honestly!

[tiborrr]

Great job Luke, now let's see some negative triple digit number Keep it up!

Regards,
N.

[Moc]

i would not classify this as ghetto at all... honestly!

When this isn't ghetto, what is ghetto?
But nice to see that your on the road Luke!

[MaSell]

symphy @ 01-14-2009, 08:30 PM

Get this unit ready until the end of this month or we're finished. I'm prepared.

According to Polish and German time zone GMT +1:00, 7minutes left

[symphy]

He finished all stages, we're in good contact so I'll wait for load temps.

[LukeXE]

Hello

I just wake up Worked to 5am in cellar.

The news:

3 stages are working With Ethylene on 3rd stage I got -135C, my camera dead so I`ll do next photos today. Did some of electric.

Next news, I`m waiting for co2 and propane to add some to 1st stage, because it`s not even calibrated to handle, at all, huge next 2 stages load. When -135C on evap, on 1st stage temp drops to -35C (0,5bar suction), so needa to fill it with more gasses.

Third news, I found leaking suction valve on 2st stage ! Not brazing, not core, but "case" of valve is leaking ! Freaking

I just wake up, uploading photos which it was possible to do with my old batteries. Today next day of fighting

And Mateusz, be more insterested in your study egzams terms than mine deadlines. Thanks.



















LOL, and I repaired condenser lamels. And I needa 2 thermocouples, because it`s hard to use only one for 3 stages

[Patrickclouds]

did you already ordered the gases for 3rd stage?

[LukeXE]

I`m thinking about ordering more R14, because I got some, but not much. Methane got already.

[Unseen]

What i really like in you Luke is the motivation. I am sure you will finish this project.

But from the other hand i am worried about the safety...
Bad combination= electricity,water from uninsulated parts,metal stuff without protection,flammable gases,no color codes

Honestly if i was still in Greece i would have build this cascade for you,with your parts for free, just to help you exit from this situation.

Anyway try to keep it simple and to be safe! Maybe you know what you are doing but the customer not!


Ps.Sorry for posting but i couldn't resist

[LukeXE]

Wait for finished project ! Everything will be 100% safe !

Thanks for comment Unseen

[yotomeczek]

Wow !
My old - never working cascade
And still some problems ...

[LukeXE]

From your cascade is only the first stage.

And needs to be tune. What problems ?

I see that that comments post only people who never did auto-c or even 3 stage.

[teyber]

luke its coming together great

i a noob with auto-c's, so forgive this stupid question

when an auto c stops autocascading, say like you said you need more co2/r290, what does this mean? is your problem like in a ss its just undercharged, or does it mean that there is not enough r290 do fully separate and condense the co2?

Thanks dude, sorry for the stupid question

and keep up the good work!

[LukeXE]

No problem with that question dude.

Yeap,it`s something like in SS, unit is "undercharged", there is too small amount propane to give proper temperature for co2. Next, if co2 isn`t condensing properly, there is too high temperature to condense ethylene. IF ethylene isn`t giving good, low temp, whole cascade sucks, because Ist stage temperature sucks.

At idle it can be ok, but under load everything changes.

[MaSell]

And Mateusz, be more insterested in your study egzams terms than mine deadlines. Thanks.

I don't have any study exams, because I'm not a student for long time

Could you show pic with mounted evap to mobo? I wonder where board must be placed to bench without too tight suction line.

[ultralo1]

I am glad to see good progress. I know its none of my business, but keep up the good work and relations. Two thumbs up for you.
(hope this dosent get screwed up in translation)

[tiborrr]

One question for all the Polish people of this forum, especially MaSell & ryba. Why do you always have to bash Luke, after all you got your money back. Move on. Why can't you be nice and polite or just try to avoid topics you know you'll write something inapropriate in?

[sigt]

One question for all the Polish people of this forum, especially MaSell & ryba. Why do you always have to bash Luke, after all you got your money back. Move on. Why can't you be nice and polite or just try to avoid topics you know you'll write something inapropriate in?

I think, that it is a habit that some people in our nation have. They just love to judge and wish to punish those who (in their opinion) are guilty. Probably, it is a result of our nation living under the comunism and control of Soviet Union for quite a long time, and the fact that it often happens in our country that lawbreakers stay immune to the law. People suffered being helpless, their children learned the way of thinking from them... Sometimes wounds need a lot of time to heal.

I also think that an additional element of attackers having a need to raise their self esteem has played a role here.

Luke, I've been observing your situation for very long time and I have always wished you the happy end of this mess. Keep up a good work, you can make it. Don't give too many promises. Just post photos when you have them.

[MaSell]

I also think that an additional element of attackers having a need to raise their self esteem has played a role here.

No, there is another problem. Some ppl know much more about all situation than others. That's the point. My self esteem is pretty good I think

BTW Nice bike Luke

EOT I'm waiting for nice loaded temp... I hope that will be very soon

[[XC] riptide]

I think people not involved need to GTFO.

[Patrickclouds]

and i think that you thought wrong or cannot generalize that

because people (not involved) but knowing how to built good working cascades should be allowed to give hints to get this unit running well and safe.

[LukeXE]

I got nice, strong, 16k btu rotary compressor from work. I`ll change compressor from I stage, because with 3 stages working I got only -45*C, with loadtester it goes up constantly, probably because I haven`t calculated captubes lenght for that big load + compressor, as few persons said, is too weak( I got only ~ +0,5bar suction pressure, to small flow).

And I have small question, do normal I stage with that 16k btu compressor, filled with R404a or play with captubes in that auto-c. Today I have to made decision, to start working by weekend.

[Moc]

( I got only ~ +0,5bar suction pressure, to small flow).

That doesn't mean that your compressor is to small, that shows that your captubes are too long.

If you put in the same unit a stronger compressor, the suction pressure would be lower. It "sucks" more - so lower pressure.

I would shorten the captubes and put in the new compressor. But I doubt that you get the autocascade working. I know how much work it is, trust me, I spend much time in this (and will spend more ) .

If that doesn't work, try a TEV the first stage. I don't remember what others compressors follow, but a TEV is always the best.