Techniques for cleaning keg interiors
The techniques used for cleaning kegs differ in terms of the intensity and the intensity distribution of the fluid-mechanical cleaning effect in the keg interior. This article compares the mechanical cleaning effect of different cleaning techniques by analysing the results from theoretical models that were developed for this purpose. Of the cleaning techniques examined, alternating surging between the keg wall and the riser pipe was found to have the highest fluid-mechanical cleaning effect on the internal keg walls. Pulsed cleaning is therefore the preferred method for cleaning and rinsing of kegs.
The process steps used in practice for cleaning kegs vary significantly, even for comparable applications. In practice, the processes shown in Fig. 1 are used for cleaning kegs....
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