4 stage cascade

Amazing job cold_ice!:clap:

Looks to be a record breaker:toast:

you can't exactly take these to LAN parties can ya? lol!!

just remember R14 has horrible capacity. Your going to need 4x as much R14 in system as R1150. large compressor in the last stage is a must.

Quote:

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Originally Posted by zabomb4163

just remember R14 has horrible capacity. Your going to need 4x as much R14 in system as R1150. large compressor in the last stage is a must.

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I would say 1.5x instead of 4.

Quote:

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Originally Posted by Unknown_road

I would say 1.5x instead of 4.

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R14 - Heat capacity at constant pressure (Cp) (1.013 bar and 30 °C (86 °F)) : 0.058 kJ/(mol.K)

Heat capacity at constant pressure (Cp) (1.013 bar and 15 °C (59 °F)) : 0.042 kJ/(mol.K)

Good luck :)

Quote:

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Originally Posted by zabomb4163

R14 - Heat capacity at constant pressure (Cp) (1.013 bar and 30 °C (86 °F)) : 0.058 kJ/(mol.K)

Heat capacity at constant pressure (Cp) (1.013 bar and 15 °C (59 °F)) : 0.042 kJ/(mol.K)

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like heat capacity has anything to do with it... :fact:

YES. the reason chilly was never successful with R14 was because he couldnt get enough capacity

cold_ice is not chilly

lets try him

Quote:

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Originally Posted by zabomb4163

YES. the reason chilly was never successful with R14 was because he couldnt get enough capacity

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no absolutly nothing! :slapass: chilly had oil problems not capacity problems! capacity problems were with methane (r50)

Heat capacity is how much heat the gas can absorb to increase 1 degree in temperature, you forget 1 important thing and that is phase-change :lol:

Today I had some time to continue the work on the cascade. I finished the first stage, I hope I have no leak. Maybe I will start with the second staghe tomorrow if I have time.

http://www.extremecooling.net/random.../4stage/21.jpg

http://www.extremecooling.net/random.../4stage/22.jpg

http://www.extremecooling.net/random.../4stage/23.jpg

http://www.extremecooling.net/random.../4stage/24.jpg

http://www.extremecooling.net/random.../4stage/25.jpg

http://www.extremecooling.net/random.../4stage/26.jpg

http://www.extremecooling.net/random.../4stage/27.jpg

http://www.extremecooling.net/random.../4stage/28.jpg

http://www.extremecooling.net/random.../4stage/29.jpg

cold_ice my friend you are a professional insulator... your insulation is always perfect ... :clap:


keep up!

^^ double that Vageli , also Cold Ice has there inslulate materials to insulate entire XS . :hehe: I see a nice single stage in second photo :hehe: .

if you have a wire feed welder then you have argon so it may be easy to get

Quote:

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Originally Posted by best [486]

if you have a wire feed welder then you have argon so it may be easy to get

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Concerning to what?

I started with the second stage today, I hope I can finish it tomorrow.

http://www.extremecooling.net/random.../4stage/30.jpg

http://www.extremecooling.net/random.../4stage/31.jpg

http://www.extremecooling.net/random.../4stage/32.jpg

http://www.extremecooling.net/random.../4stage/33.jpg

http://www.extremecooling.net/random.../4stage/34.jpg

http://www.extremecooling.net/random.../4stage/35.jpg

http://www.extremecooling.net/random.../4stage/36.jpg

http://www.extremecooling.net/random.../4stage/37.jpg

Man, your insulation is awesome..
Great work:toast:

great work so far :)

hope to see some realy low numbers :D

Nice work my friend...

how much does this blue termal probes cost?

tnx

if they are K types i think around 10-15 euro, atleast my fluke K sensors cost 16 euro.
hey cold_ice what thermostat ar you using? and what are you going to use to swith your 3th stage on. the thermostat must handle K type thermocouple's not?

where going to use an dixell thermostat on the cascade where going to make, i can give you the type if you want.;)

about the oil:
http://www.sanyo-biomedical.com/file...20MDF-1155.pdf

Quote:

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High-efficiency oil separator for stable ultra-low temperature environments Compressors continuously repeat highly compressed operations, so lubricant oil is essential to prevent abrasion and seizure.
But when lubricant oil circulates in the refrigeration circuit, piping becomes clogged and results in compressor damage. Incorporating an exclusive highefficiency oil separator, the MDF-1155 ATN effectively separates lubricant oil from refrigerant, offering a stable ultra-low temperature environment.

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the solution, a very GOOD oilsep:D

The probes are about 11€ at a local store.
I'm using Dixell XR10C thermostat for the first stage. I don't have controllers for the other stages at the moment. Most controllers only go down to -50°, so not useable for a cascade. Which one do you use for your cascade?

Not a big update today. I continued the work on the second stage, all lines are bent, only some brazing is to do now.

http://www.extremecooling.net/random.../4stage/39.jpg

http://www.extremecooling.net/random.../4stage/40.jpg

http://www.extremecooling.net/random.../4stage/41.jpg

http://www.extremecooling.net/random.../4stage/42.jpg

http://www.extremecooling.net/random.../4stage/43.jpg

http://www.extremecooling.net/random.../4stage/44.jpg

Quote:

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Originally Posted by cold_ice

The probes are about 11€ at a local store.
I'm using Dixell XR10C thermostat for the first stage. I don't have controllers for the other stages at the moment. Most controllers only go down to -50°, so not useable for a cascade. Which one do you use for your cascade?

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i tought i recognize the controller, i'll try to get the model tomorrow or this week ;)

btw good luck with the 4stager, your doing a excellent Job.

Yeah man keep it coming :toast:

The suspense is killing me...that beast of a cascade is going to start freezeing though your test-bed :clap: :clap: :clap:

Good luck
[ZIZI]

WOW. :slobber: Got to see this.....