View Full Version : Refrigerant filling ratio...

21-04-2008, 09:27 PM

I've got one question. What is an average refrigerant filling ratio (kg/kW) for ammonia glycol chiller which works at -15 evaporating and 30 condensing temperatures with gravity flooded plate evaporator?
Refrigerating capacity is about 550 kW.

Thanks for every answer :),

Best regards...

22-04-2008, 02:32 PM
Auxiliary question :)... if the amount of 150 kg (it's 0,27 kg NH3 per kW) ammonia will be correct for this kind of installation?

US Iceman
22-04-2008, 02:41 PM
I think the refrigerant charge is dependent on your system arrangement and components. The package chillers I have worked on had a ratio of 45.36 kg for 351.69 kW of refrigeration. So the ratio was 0.1289!

This was for a ice skating rink.

This was an owner requirement for transportation, but I think similar results are possible.

22-04-2008, 03:39 PM
Thanks very much for Your answer. It was very helpful.

Best regards...