Operation features of air purgers and liquid separators of ammonia refrigerating machines

4. Air purgers .

The air penetrates into the refrigeration unit system on the low-pressure side when operating at boiling pressure lower than atmospheric one and during repair and maintenance works performance. The air builds up in a condenser and a steam part of linear receiver. The air entrained into the condenser leads to the following negative developments:

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Benefits and disadvantages of ammonia

The ammonia (NH3) is the most advanced among natural substances, which are used as working media in refrigeration units, and known under designation R717. Below we shall consider positive and negative properties of the ammonia using as a refrigerant in comparison with freons.

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