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g.karsandas
16-06-2012, 03:23 PM
An Industrial Cold storage having Ammonia refrigeration system having Frick screw compressors., how much minimum quantity(%) of ammonia liquid to be required in Therm o-siphon tank for cooling the oil of screw compressors.
g.karsandas:

RANGER1
16-06-2012, 10:12 PM
g
Is the vessel only for thermosyphon, if so

Usually 30-50% full or 5 minutes of running at peak load for a buffer if whatever happens to keep prime of t/syphon circuit.

g.karsandas
17-06-2012, 08:57 PM
Hi Ranger 1,
From thermosyphon tank,refrigerant goes to various temperature accumulator tanks.
And how to judge that the units are running at the maximum because of various temperature zone,and numbers of compressors are running at various load.
Thanks,
g.karsandas

RANGER1
18-06-2012, 09:31 AM
Hi Ranger 1,
From thermosyphon tank,refrigerant goes to various temperature accumulator tanks.
And how to judge that the units are running at the maximum because of various temperature zone,and numbers of compressors are running at various load.
Thanks,
g.karsandas



You describe a combination thermosyhon & liquid reciever.
I would still suggest minimum 30% to 40% level at all times for reliable operation.

Segei
18-06-2012, 02:26 PM
An Industrial Cold storage having Ammonia refrigeration system having Frick screw compressors., how much minimum quantity(%) of ammonia liquid to be required in Therm o-siphon tank for cooling the oil of screw compressors.
g.karsandas:
Do you have any concerns?