View Full Version : a project cascade syetem
COLD WANG
08-12-2008, 07:33 AM
i has a project :
1:-7 deg c EVAPOTATE TEMPRATURE, cooling capacity :60KW
2:-45 DEG C EVAPOTATE TEMPRATURE, cooling capacity:30KW
3:-70 DEG C EVAPOTATE TEMPRATURE, cooling capacity :10kw
how can i deal with it ,would you give me some advice?
Brian_UK
08-12-2008, 11:07 PM
Contact someone who can design a system for you.
They will also be able to provide a price for the finished items.
mayankjindal
08-06-2009, 03:35 PM
You can use a two stage cascade system. Also use R404 A in high stage and R23 in low stage.
Best regards
Mayank Jindal
i think you can use R404A for 1st stage and R508B for 2nd stage it's working until -86C
D.D.KORANNE
20-07-2009, 12:16 PM
I CAN SUGGEST SUITABLE COMPRESSORS FOR THE CASCADE YOU ARE LOOKING FORWARD TO WITH R-404A & R-23 REFRIGERANTS . HOWVER THE SYSTEM BUILDING YOU WILL NEED TO ORGANIZE YOURSELF . HOWEVER NOT CLEAR YOUR REQUM ; AS I UNDERSTAND IT
>>>>>>>>>>>>>>>>>>>>>>>>>>>>
-70 DEG C EVAP ............ 10 KW
THIS INFO IS SUFFICIENT TO DO COMPRESSOR SELECTION , EXCEPT YOU WILL HAVE INDICATE THE HIGH SIDE CONDENSING TEMPERATURE ON THIS APPLICATION .
BASED ON YOUR CONDENSING TEMP AN INTERMEDIATE PRESSURE CAN BE WORKED OUT & IT WILL BE SUFFICIENT TO ARRIVE AT SUITABLE SELECTIONS . HENCE SEND THE HIGH SIDE COND TEMP
>>>>>>>>>>>>>>>>>>>>>
I DO NOT KNOW WHY OTHER PARAMETERS AT -45 DEG C & -7 DEG C ARE GIVEN.
FURTHER DISC ON BY PM : ddk0123@gmail.com
just for information, if 2nd stage evaporator -70 c. you should setting you 1st stage evaporator until -42c cause if 2nd stage cycle your evaporator warm until -36 c, this same like my project.and i using danfoss compressor GS.
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