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soroushata1995
05-07-2017, 03:53 PM
Hello buddies,
I'm going to design and make a -150 degree refrigerator for a shop, because I'm new graduated student I don't know how to do it practically...
I need help. after calculations, from where should I start???
thanks for your helps

chemi-cool
05-07-2017, 05:11 PM
What are you going to store at that temp?

FaultCode
05-07-2017, 08:06 PM
We assume C.

soroushata1995
06-07-2017, 02:13 PM
you know, I'm just going to make LCD separator
can u help me????????

FaultCode
06-07-2017, 03:15 PM
You mean like one of these ?

http://bit.ly/2tMi6wc

If so then you need to do some more studying I think, design work for free is unlikely.

chemi-cool
06-07-2017, 03:16 PM
you know, I'm just going to make LCD separator
can u help me????????

Sorry, never went below -85C.

soroushata1995
07-07-2017, 10:27 PM
yes it is buddy,
I think Chinese do that just in ONE cycle.they do not use cascade systems. strange!

soroushata1995
07-07-2017, 10:29 PM
If u know someone who can helps me, please send me his or her Email.
Thank u all!

Josip
08-07-2017, 02:50 PM
Hi soroushata1995,


yes it is buddy,
I think Chinese do that just in ONE cycle.they do not use cascade systems. strange!


maybe strange ...

but if you use liquid nitrogen ....

then if you use liquid nitrogen within vacuum chamber you can go even below -150*C ...


Best regards, Josip

soroushata1995
13-07-2017, 08:58 AM
thank u man