Introduction:

The quality of beer packaged in bottles depends to a large extent on the conditions under which the pasteurization stage takes place in a tunnel, with the inlet temperature of the beer as well as the water temperatures in the different zones being the main variables that influence the pasteurization units.

Objective:

Study the behavior of the beer inlet temperature as well as the water temperature in the different zones of a tunnel pasteurizer under anomalous conditions, through modeling and simulation with the COMSOL software, for the analysis of its influence on the units of pasteurization.

Materials and Methods:

The system to be modeled is formed by the bottle that contains the beer to be pasteurized, which passes through the zones of a tunnel, and the water that is supplied through the showers arranged in each zone for this purpose.

Results and Discussion:

Four variants are studied, starting from a base case with changes in the variables of beer inlet temperature, and water temperature in the different zones, analyzing in each case the incidence in the pasteurization units.

Conclusions:

Values of pasteurization units higher than those reported in the literature can be seen for each anomaly studied.

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