New cascade project

[berkut]

Ok, im starting a new cascade, this one will use all the tricks and magic i can come up with to make it perform at its best and hopefully be THE one to follow...

First of all the best evap there is needs to be used for such a project, a chilly1 evaporator. Unfourtenetly i will be using a copy of it, still its exacly the same as the original exeptfor the machinig quality.

This is a older revision is his evaporator, w/o the steel ring thats why i had to drill 5 holes in it, 4 holes are for mounting and the 5th is for the temp. probe drilled all the way near the core of the evaporator.

A supply tube has been drilled too, a CPEV will be used in this project. But it will not be mounted the standart way you guys do.

Now i have to sand blast the internals of the evaporator to increase the surface area and roughness for more capacity.

Pics:

[hatemi]

Looking forward on how this is going to go:) I'm pretty sure you have some nice litle trics in your mind to outdo everyone else.

[berkut]

This will not be any cascade you have ever seen.

[Russell_hq]

What type of cooling cycle will you be using berkut?

[berkut]

Its a cascade :) Like the topic says, but a little "pimped" ;]]] Im almost certain you guys suspect what will i do,Runmc already knows some secrets ;)

[kayl]

what gasses we using this time.
ya have someone machining those blocks, or DIY.
hold down seems interesting, some sort of bolt clamp im guessing.
good luck :toast:


also whats with www.chillerworks.com, is that your website??

[Malachia]

subscribed, whaiting for a new art from the co2 mater(followed y kayl of course :banana: :D )

[gclg2000]

Are you gonna tap those 4 mounting holes for screws?

[runmc]

Too bad we can't bottle berkuts brain and sell it. :dammit: :nono: We would make millions :shock: :shock: :shock: :shock:

[gclg2000]

or :2cents:'s

Let us know what your up to man. Looking good.

[berkut]

Brazed the evaporator assembly. This will be a MEAN machine :slobber:

http://www.teampuss.com/berkut/xtreme/cascadeevap/16.jpg

Setting up propane flow.

http://www.teampuss.com/berkut/xtreme/cascadeevap/15.jpg

Heating up the evaporator.

http://www.teampuss.com/berkut/xtreme/cascadeevap/14.jpg

BURN BABY BURN

http://www.teampuss.com/berkut/xtreme/cascadeevap/13.jpg

Heating her up, brazing...

http://www.teampuss.com/berkut/xtreme/cascadeevap/12.jpg
http://www.teampuss.com/berkut/xtreme/cascadeevap/11.jpg
http://www.teampuss.com/berkut/xtreme/cascadeevap/10.jpg

burn hell and FIRE ! actually its a kind of irony... its meant to work @ -1xx C temps but its origin is in fire...

http://www.teampuss.com/berkut/xtreme/cascadeevap/7.jpg
http://www.teampuss.com/berkut/xtreme/cascadeevap/8.jpg
http://www.teampuss.com/berkut/xtreme/cascadeevap/9.jpg


http://www.teampuss.com/berkut/xtreme/cascadeevap/3.jpg
http://www.teampuss.com/berkut/xtreme/cascadeevap/24.jpg
http://www.teampuss.com/berkut/xtreme/cascadeevap/2.jpg

The T splitter...

http://www.teampuss.com/berkut/xtreme/cascadeevap/23.jpg

A CPEV

The assmebly ready:

http://www.teampuss.com/berkut/xtreme/cascadeevap/17.jpg
http://www.teampuss.com/berkut/xtreme/cascadeevap/18.jpg
http://www.teampuss.com/berkut/xtreme/cascadeevap/19.jpg

Looks weak now but it neds some finetuning, polishing and of course INSULATION! There's going to be a LOT of it, probably 5cm thick on each side. This baby is meant for temps only chilly1 probably saw.

[Malachia]

nice, for you it works if i use CO2 or argon instead of propane???

[saratoga]

Nice pics. I think insulating that thing is going to be fun. You're foam is going to be larger them half my computer :)

[masterofpuppets]

Yay, another berkut project!

[Mikestore]

heheh nice :)

[blinky]

woo hoo cant wait :)

[wdrzal]

I hope someone has enough sense to remove those pics of purging with propane,actually all threads mentioning useing it for purging should be removed. that is just plain stupid. bad enough you have to worry about controlling the torch flame,but to dodge fireballs is the most un-professioinal thing Ive seen.Some one going to get hurt !!! if you want to do it fine but don't post it!!! thats MY OPINION. Walt

[Coyote]

fireballs? propane is dangerous if released and not burned inmediately. if you burn it as fast as you release it theres no danger of fireballs.

understanding stuff is the best way to avoid accidents, not fear.

[LardArse]

I like that unique evap arrangement!
Very good job my friend! :D

[wdrzal]

fireballs? propane is dangerous if released and not burned inmediately. if you burn it as fast as you release it theres no danger of fireballs.

understanding stuff is the best way to avoid accidents, not fear.

I wouldn't want to be leaning over that evap when the wind changes direction,unless your god and can control the wind too.And yes ,understanding stuff is the best way to prevent accidents,that why pro's don't use propane. Work safe!!! Walt

[gclg2000]

Dry Nitrogen is so cheap to use on something like this.

[berkut]

I dont think its dangerous in the hands of someone skilled. And propane is a great oxide reducing agent i really needed.

Nitrogen is not cheap ;) At least here, and the place where you buy it is 30km away from my house and i still havent recived my driving license

Im about to start building my compressor assembly for the final stage. this will take a while....

[Epsilon]

I wouldn't want to be leaning over that evap when the wind changes direction,unless your god and can control the wind too.And yes ,understanding stuff is the best way to prevent accidents,that why pro's don't use propane. Work safe!!! Walt
Damn stop overreacting

Purging with propane is not dangerous because there is NO oxygen and very effective agains oxidation.


"that's why pro's are using nitrogen"
No, pro's HAVE nitrogen, that's the reason. Not because propane isn't safe.

Nitrogen is not cheap if you have to buy the bottle and regulator !!! That's off for most of us.

By lighting the propane flame, the room doesn't fill with propane. Using a manifold and captube allows you to regulate the flow so the flame isn't that large.



I hope someone has enough sense to remove those pics of purging with propane,actually all threads mentioning useing it for purging should be removed. that is just plain stupid. bad enough you have to worry about controlling the torch flame,but to dodge fireballs is the most un-professioinal thing Ive seen.Some one going to get hurt !!! if you want to do it fine but don't post it!!! thats MY OPINION. Walt
And plz stop pushing ppl to follow your opinion by saying that he is not thinking it thourgh.


Ontopic:
Nice brazing job :). Looking forward to your "tweaks" ;)

[Unknown_road]

Dry Nitrogen is so cheap to use on something like this.

cheap? price of bottle+gas+regulator is enormous over here! lots of us are just students and don't have a regular job to afford fancy stuff. buying nitrogen is a 2 month salary for me :(

[hatemi]

Nitrogenen costs practically nothing. Botle costs 300€+ the regulator.

If you tune the purging flame so that it's about the size of a cigarrettelighter flame youl have hard time burning yourself with that:)

Back on the topic: Nice brazing job:) I just dont understand why you mount that valve so close to the evap, but youll know what youre doing. To me its just pretty damn inconveniant.

[berkut]

For better MUCH subcooling and smaller heat losses. And i like my PEV to be close to the evaporator.

My old evap assembly is exacly the same:

http://www.teampuss.com/berkut/nextgen/evapassembly/2.jpg

http://www.teampuss.com/berkut/nextgen/evapassembly/3.jpg

Thanks to this i can get really wild results when im in vacuums and the low pressure teritory. And thats why my cascade powns Tyrou's cascade ;) If i only had ethylene...

[Coyote]

nice, really nice :D

[Tyrou]

So you pwn my cascade ? :D You're way more skilled than me in cascade building, but I'll have ethylen :D (contact me in PM, I may have some for you)

That's the best I did, past this, my evap is totally clogged, and my CPEV is plugged just as yours, on top of my evap :)

http://x2.tyrou.net/-81_2.jpg

[Malachia]

you need to try more vacuum and to retry the r290/744 mix in second stage to get at least -80, french friend :)

[Malachia]

man you are a god...

http://tyrouxp.free.fr/Phasechange/DD134/Integration%201/I1%20(10).jpg

without knowing it you founded the best way to use phase change on dothans on CT-49 :D

merci :P

[Tyrou]

thanks malachia :) I'm in the exams period, so I don't have much time to play with my cascade, but since they fininsh, I'll be back tuning it, and I hope, with ethylen :)

[Malachia]

thanks malachia :) I'm in the exams period, so I don't have much time to play with my cascade, but since they fininsh, I'll be back tuning it, and I hope, with ethylen :)


also i am very busy with school :(

man ygpm for a little thing, end to end ot here :D

[berkut]

Something to give you guys an idea how thick will the insulation be on the sucktion line:

http://www.teampuss.com/berkut/xtreme/cascadeevap/izolacjanextgen.jpg

http://www.teampuss.com/berkut/xtreme/cascadeevap/izolacjanextgen1.jpg

Thats about 90mm OD.

[Malachia]

OD is external diameter???

[Coyote]

berkut, let me see if i understand this correctly, you have a cap tube before and after the CPEV ??

[berkut]

Yes

[skate2snow]

So it will help controlling the load?

[berkut]

Not exacly help controll it, but let me archieve lower temps.

I have posted a more in deph topic on this project on teampuss. Much more details can be found there.

Click here (http://www.teampuss.com/forums/viewtopic.php?t=744)

[Coyote]

oh i guess then what i asked some time ago about that wasnt that wrong :D

nice, ill be waiting to see how everything works for you :D

[berkut]

This will take some time :|

This is a really LARGE and complicated system...

[pythagoras]

Is this a 3 compressor autocascade with co2? 2 compressor compound cooling on low stage and autocascade?

Regards

John.

[saratoga]

man you are a god...

http://tyrouxp.free.fr/Phasechange/DD134/Integration%201/I1%20(10).jpg

without knowing it you founded the best way to use phase change on dothans on CT-49 :D

merci :P

Thats awesome :D

[nordik]

Can't wait to see the finished product :D

[Marvin]

nice berkut.
keep us updated with pics :D

[berkut]

im gathering parts for the sucktion compressor assembly right now :slobber:

[berkut]

Ok i talked with one guy today. This saturday ill have my 15000btu/h compressor :slobber:

I had a rough day today, a lot of P4 3.73ghz and 840 benching, results in a few hours...

I hope to finish the assembly today :D