NH3 - Separating Hood Compressor
Because of the global warming impact and the ozone hole, the refrigerant "ammonia" is regaining importance. Ammonia is ecologically neutral, energetically advantageous and is part of the natural nitrogen cycle in the biosphere. As practice will show, the use of ammonia as refrigerant is generally free from danger.
Advantages of R723
The aceotrope Mixture R723 consist of 60% Ammonia and 40% Dimethylether. The solubility of this mixture with Compressor oil has been increased. The non ready soluble oil types for ammonia will become fully soluble with R723. Also if using mineral oils with ammonia a significant improvement of solubility could be reached. Besides the improved oil reservoir in the refrigerating compressors, the improved heat transfer in superheated evaporators is advantageous. Besides higher Cooling Capacity, better COP and improved oil solubility, lower discharge gas temperatures could be reached. This increases the operating area of the compressor in single stage but also in two stage systems. If using R723, the condensation by an air cooled condenser is realized and take the place of the expensive cooling towers!