Use of mixed gas in beverage dispensing
By using mixed gas, dispensing problems caused by excessive carbonation of the beverage can be avoided. Here, mixed gas is a mixture of carbon dioxide (CO2) and nitrogen (N2).
The problem of excessive carbonation arose when compensation devices in the form of compensator taps or line compensators in the vicinity of taps where introduced. Possibilities for using mixed gas are described and discussed below, and calculations based on practical examples are presented.
Saturation pressure
The equilibrium pressure in a keg resulting from the CO2 level set in the brewery at a certain temperature is referred to as saturation pressure. In optimised draught beer dispensing, saturation pressure should remain constant over the entire dispensing period. Rammert et al.
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