Author(s):
1. Vladimir Čavić, Banjalučka pivara, Republic of Srpska, Bosnia and Herzegovina
2. Mirko Dobrnjac, Faculty of Mechanical Engineering, Republic of Srpska, Bosnia and Herzegovina
3. Jela Burazer, Institut Goša, Milana Rakića 35, Beograd, Serbia
4. Milan Lečić, Univeristy of Belgrade, Faculty of Mechanical Engineering, Serbia

Abstract:
In the process of beer production a transport of raw material (barley malt and barley) is needed. This transport is performed pneumatically. The paper deals with the actual case of increase in beer production capacity which leads to increase in the amount of the raw material that needs to be transported. In that sence, this paper presents the design of a new pipeline, dosage system and the new vacuum blower that could satisfy the requirements regarding the air flow. It is foreseen the regulation of the vacuum blower based on the pressure drop in pipelines. Attention was drawn to the details regarding the vacuum pneumatic transport system: (1) critical values of the velocities in pipelines, which are very important due to a possible damage of the transported material, (2) limit concentrations of the transported material in air.

Key words:
vacuum pneumatic transport, brewery, pressure drop, critical velocity, limit concentration.

Thematic field:
Mechanics and Design

Date of abstract submission:
07.03.2015.

Conference:
12th International conference on accomplishments in Electrical and Mechanical Engineering and Information Technology (DEMI 2015)

Final paper