1. Operating principle

1.1 Definition of dry direct atmospheric refrigeration

In this so-called direct application, the cold sink exchanges directly with the fluid to be cooled, without the use of an intermediate heat transfer fluid circuit. In addition, refrigeration is described as dry, as the fluid to be cooled cannot be brought into contact with the coolant because of its pressure, toxicity or environmental impact, for example.

It's important to note that atmospheric refrigeration units generally operate in an open circuit, as the...