Ammonia (NH3) – CO2 – Propane
Since the Montreal protocol and the European F-Gas Regulation, natural refrigerants are (actually) very hard to overlook. Many examples show that the use of natural refrigerants is much more economical. We will evaluate the pro and cons regarding your choice of refrigerants in detail.
Ammonia is the most efficiant refrigerant. However, plants made of steel are essential, since ammonia attacks copper. Therefore, it is necessary to use other materials and usually also other suppliers than for conventional refrigeration technology.
Technologically, ammonia plants are very different. It may happen that an ammonia expert is not able to calculate, plan and build a plant with synthetic refrigerants – and vice versa.
We have a broad knowledge of ammonia and synthetic refrigerants – not many others are able to say that!
CO2 – the alternative refrigerant with the value added ?!
CO2 allows to implement natural refrigerants by using copper plants. High pressure units and transcritical circuits also call for expert knowledge. – This refrigerant may fill the gap between commercial and industrial refrigeration.
As a refrigeration plant not only has to dissipate heat but also humidity, the challenge for the plant designer is to interpret the operation process of the CO2 plant correctly.
Efficiency, environmental neutrality and harmlessness against copper are what makes this refrigerant interesting. Unfortunately, it is highly flammable and therefore not suitable for widely ramified plants due to filling capacity and potential hazard. There may be reasonable applications for compact units.