LittleDevil's SC18CLX Cascade

[LittleDevil]

Some pics of SC18CLX cascade:

http://ld-phasechange.com/images/cascade_SC/1.jpg

http://ld-phasechange.com/images/cascade_SC/2.jpg

http://ld-phasechange.com/images/cascade_SC/3.jpg

http://ld-phasechange.com/images/cascade_SC/4.jpg

http://ld-phasechange.com/images/cascade_SC/6.jpg

http://ld-phasechange.com/images/cascade_SC/7.jpg

http://ld-phasechange.com/images/cascade_SC/8.jpg

http://ld-phasechange.com/images/cascade_SC/9.jpg

Best Regrads

[LittleDevil]

Cascade is almost finished:

http://ld-phasechange.com/images/cascade_SC/13.jpg

http://ld-phasechange.com/images/cascade_SC/15.jpg

http://ld-phasechange.com/images/cascade_SC/19.jpg

http://ld-phasechange.com/images/cascade_SC/20.jpg

http://ld-phasechange.com/images/cascade_SC/21.jpg

http://ld-phasechange.com/images/cascade_SC/17.jpg

http://ld-phasechange.com/images/cascade_SC/18.jpg

Load test tonight. :)

Regards

[BlueAqua]

Wow LD, you never cease to amaze. Beautiful work as usual. I want one like that in the states.

[Mankz_91]

Wow. Amazing work LD!

YGPM's!

[sacha35]

Outstanding work LD,very clean as all your work is, what sort of load can the unit cope with?

[DagoDuck]

Nice box for the heat exchanger. Is that an OUB 1 or an OUB 4 oil separator of Danfoss? It looks very big. How thick is the pipe insulation around the suction line? Why have you not used any rotary compressors? Which nozzle have you taken for the expansion valve? Good work as always my friend. :)

[Buckeye]

Very Nice clean build, I love it !! :clap:

[[XC] gomeler]

Very nice build LD. Hard to see the piping but I imagine those two small condensers are desuperheaters for the 2nd stage?

[mike8913]

holy energy bill batman!

[Clemmaster]

Perfect job as always :)

SCxxCLX don't like high discharge pressure, try to make it as lower as possible, the difference is tremendous for these compressors (nice first stage condense :) ) with crapy volumetric efficiency with high discharge pressure.

[godmod]

21bar is no problem, so what do you mean with "SCxxCLX don't like high discharge pressure" ?
I would say that especially they do (in comparison to SCxxG for example).

[Clemmaster]

No they don't, cooling capacity decrease a lot with high discharge pressure (much more than on nl series or on common rotaries for example)

SC18CLX (-40°C R404a) ==> 364w -> 262w -> 160w (35°C -> 45°C -> 55°C condensing temperature).

[LittleDevil]

Frosty load tester and enclosure ;)

http://ld-phasechange.com/images/cascade_SC/22.jpg

250W heat load. :)

http://ld-phasechange.com/images/cascade_SC/23.jpg

Regards

[DagoDuck]

It's a pity that you always ignore the whole postings and questions. I am just interested in your work. :p:

[tiborrr]

It's a pity that you always ignore the whole postings and questions. I am just interested in your work. :p:

True :D

Good job on the load testing, -91°C @ 250W is quite impressive :yepp:

[godmod]

No they don't, cooling capacity decrease a lot with high discharge pressure (much more than on nl series or on common rotaries for example)That does not mean that they "don't like" high discharge pressure. Do they get broken? No they do not. Efficiency is something different.

[tim-]

doesn't matter what compressor you are talking about, higher condensing temp cause less capacity no matter what compressor you use, the issue might be to small condenser...

[kayl]

what size condenser is that?
very nice work Ld ;)

[godmod]

Ich would say it is a LuVe STVF 194

[DagoDuck]

It looks like a LUVE STVF 194 (1940 watts) condenser. I am not sure...

[tiborrr]

LD, are you using Danfoss OUB1 oil separator? You bought it for 181EUR+tax at Empor, right? Well, i just bought one, used, on eBay for 22€ including shipping costs.

I am one lucky son of a gun! :D

[Moc]

That does not mean that they "don't like" high discharge pressure. Do they get broken? No they do not. Efficiency is something different.You both talk about differnt things.
Clemmaster: Keyword "compressor ratio" (in german: Druckverhältnis ND/HD, Rückexpansion im Kolben usw... Wirkungsgrad sinkt beträchtlich, weißt du ja alles)
Godmod: Durability

[godmod]

Tnx, I know Moc :)
It is just false to say the CLX do not like high discharge pressure. Since they are designed for 404a/507 they can deal with it.

Wenn die die deutschen Sätze im Internet übersetzen, daun frog i mi wos se jetzt mochn :D

[Clemmaster]

Tnx, I know Moc :)
It is just false to say the CLX do not like high discharge pressure. Since they are designed for 404a/507 they can deal with it.

Wenn die die deutschen Sätze im Internet übersetzen, daun frog i mi wos se jetzt mochn :D

What if I told about volumetric efficiency? I think most people understand "don't like high discharge pressure".

Another way : reduce the discharge pressure because volumetric efficiency decrase a lot with increasing discharge pressure.

I'm not saying they won't work with high discharge pressure ;)

doesn't matter what compressor you are talking about, higher condensing temp cause less capacity no matter what compressor you use, the issue might be to small condenser...

The resulting decrease isn't the same on every compressors :rolleyes:

SC decrease very fast compared to nl for instance.

[godmod]

Clemmaster, I misunderstood it. Thats exactly why I thought you mean that "SCxxCLX" cannot handly high pressure.

Did everybody unterstand "don't like" = "volumetric efficency is bad"?
maybe i am just retarded :confused:

[Clemmaster]

Everybody will understand that it would be better to use big condenser with theses compressors ;)

[LittleDevil]

Thanks kayl :up:

LD, are you using Danfoss OUB1 oil separator? You bought it for 181EUR+tax at Empor, right? Well, i just bought one, used, on eBay for 22€ including shipping costs.

I am one lucky son of a gun!

You already mention in another thread that you got OUB1 for 22€, no need to mention that in every thread on the forum!

Regards

[tiborrr]

So many questions for you but you have to bump into mine? :) I guess I am double-time lucky :lol:

[godmod]

All kind of technical questions are only attempts to get out 'LDs secrets of phase building'. therfore he has to kill us if tells us :p

[Moc]

Simply ask cold_ice and you get the answer....

[LittleDevil]

Ok guys :)

Nice box for the heat exchanger. Is that an OUB 1 or an OUB 4 oil separator of Danfoss? It looks very big. How thick is the pipe insulation around the suction line? Why have you not used any rotary compressors? Which nozzle have you taken for the expansion valve? Good work as always my friend.

It is OBU1, pipe issulation is 19mm. I have those compressors ate homme that's why i used them. 00 orifice on expansion valve.

Very nice build LD. Hard to see the piping but I imagine those two small condensers are desuperheaters for the 2nd stage?

Yes, this are desuperheaters for secoond stage.

LD, are you using Danfoss OUB1 oil separator? You bought it for 181EUR+tax at Empor, right? Well, i just bought one, used, on eBay for 22€ including shipping costs.

I am one lucky son of a gun!

Yes i got it in Empor.

Best Regards Guys

[DagoDuck]

Thank you very much. That was not so hard, is it? Once again great work my friend. :up:

[bazx]

great work here LD

you make the best cascades my freind

[LittleDevil]

Thanks my friend! :up:

Finished:

http://ld-phasechange.com/images/cascade_SC/24.jpg

http://ld-phasechange.com/images/cascade_SC/25.jpg

http://ld-phasechange.com/images/cascade_SC/26.jpg

http://ld-phasechange.com/images/cascade_SC/27.jpg

http://ld-phasechange.com/images/cascade_SC/28.jpg

http://ld-phasechange.com/images/cascade_SC/29.jpg

http://ld-phasechange.com/images/cascade_SC/30.jpg

Best Regards

[[XC] gomeler]

What are the aluminum chunks for? Enormous shims? Looks great LD, nice rim :up:

[godmod]

Simply ask cold_ice and you get the answer....
:rofl:

[LittleDevil]

What are the aluminum chunks for? Enormous shims? Looks great LD, nice rim

Thanks. :up:

Alu chunk are for fighting with cold bug.

regards

[Pete]

Where is this unit off to then Ales?

[[XC] gomeler]

Thanks. :up:

Alu chunk are for fighting with cold bug.

regards

Just what I thought, thick shims though :D

[Unseen]

Thanks. :up:

Alu chunk are for fighting with cold bug.

regards

You can use in your next cascade a hand valve for the cold bug. I did this to a cascade i made a few months ago. You can control ~20-30 degrees by this way. Closed during the bench, open when you are idle.
http://i212.photobucket.com/albums/cc299/unseen1980/PICT0002-2.jpg

[Polizei]

Those shims are huge... a lot bigger than I thought they would be.

Well done... nice cascade. :up:

[LittleDevil]

Thanks Unseen, but i think that customer won't have problems with cold-bug. I just add that if cold-bug mybe will be there :P

Forgot to post last pics.

http://ld-phasechange.com/images/cascade_SC/31.jpg


http://ld-phasechange.com/images/cascade_SC/32.jpg

Best Regards

[before]

Very clean :toast:

[Felipe]

nice cascade 2 stage

[DagoDuck]

Very well packaged. It should arrive in a perfect condition. :up:

[Pederrs]

This beauty is right on its way to me ;)

[Moc]

Have fun with it. Really nice unit.

[N3RO]

Do you have some pics/vids of how are you using these ALU shims? :)

http://ld-phasechange.com/images/cascade_SC/29.jpg

[LittleDevil]

Do you have some pics/vids of how are you using these ALU shims? :)

http://ld-phasechange.com/images/cascade_SC/29.jpg

You just put them between CPU and EVAP.

Regards