Results 1 to 9 of 9
Thread: Single stage -40 °C
-
16-09-2015, 03:20 PM #1
Single stage -40 °C
Hello, I have a small fridge and I need 1,5 kW of refrigeration power when it's temperature is -40°C. What kind of gas would you use?
I tried with R404A, but the temperature can't reach -40°C.
Any idea?
Thank you!
-
16-09-2015, 03:33 PM #2
Re: Single stage -40 °C
first you need a compressor that can reach -40, I would suggest R-507 or R-410A.
-
16-09-2015, 03:42 PM #3
Re: Single stage -40 °C
Yes, it was the following question
What compressor should I use?
-
16-09-2015, 03:44 PM #4
Re: Single stage -40 °C
A compressor with 1.5 KW capacity at -45C evaporating temp.
-
16-09-2015, 03:57 PM #5
Re: Single stage -40 °C
Yes, but I didn't find anything with this specs. Can you suggest me something? (reciprocating or scroll)
-
16-09-2015, 08:52 PM #6
Re: Single stage -40 °C
Check Bitzer and Copeland semi hermetic two stages low temp.
-
17-09-2015, 07:08 AM #7
Re: Single stage -40 °C
CO2 machine Bitzer, Dorin..
It's better to keep your mouth shut and give the impression that you're stupid than to open it and remove all doubt.
-
18-09-2015, 07:13 PM #8
-
02-10-2015, 04:32 PM #9
Re: Single stage -40 °C
You building a complete circuit or salvaging a small fridge or? 2-stage compounded will get you there and can be built up from pretty much stock pieces. Autocascade is the easiest overall arrangement but you would be buying a complete lab fridge.....Not something you want to design as a One-off.