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A Slug Flow Model in a Long Milk Tube for Designing a Milking Unit Control System.
Author(s)
A. Kupczyk Department of Production Management and Engineering, Warsaw University of Life Sciences,Nowoursynowska Warsaw, Poland
M. Gaworski Department of Production Management and Engineering, Warsaw University of Life Sciences,Nowoursynowska Warsaw, Poland
J. Szlachta Institute of Agricultural Engineering, WrocBaw University of Environmental and Life Sciences, CheBmoDskiego WrocBaw, Poland
K. Tucki Department of Production Management and Engineering, Warsaw University of Life Sciences, Nowoursynowska Warsaw, Poland
J. Wojdalski Department of Production Management and Engineering, Warsaw University of Life Sciences, Nowoursynowska Warsaw, Poland
A. LuberaDski Institute of Agricultural Engineering, WrocBaw University of Environmental and Life Sciences, CheBmoDskiego WrocBaw, Poland
B. Drozdz Department of Production Management and Engineering, Warsaw University of Life Sciences, Nowoursynowska Warsaw, Poland
M. Krzywonos Department of Bioprocess Engineering, WrocBaw University of Economics,Komandorska WrocBaw, Poland
Abstract
Automatic milking differs from natural sucking behavior, and it affects animal health. Subatmospheric pressure is the main parameter of a mechanical milker, and it is produced to overcome teat resistance, open the teat sphincter, keep the milking unit attached to teats, suck milk from the teat sinus and transport milk to the pipeline. Bernoulli sequation was used to minimize the effect of inflowing air on the pressure drop between the milking cluster and the pipeline. A diagram for calculating the reduction in pressure was developed using the Goal Seek tool in MS Excel. A minimum pressure drop was noted at every milk flow rate when inflowing air had the required flow rate. In the proposed control system, the area of the air inlet was adjusted to minimize the pressure drop during milking. The developed model can be used to improve automatic control solutions in a milking unit. 
Publication Details
Page(s) 1238-1246
DOI DOI not available
Published Journal: Journal of Animal and Plant sciences, Volume: 29, Issue: 5, Year: 2019
Keywords
milk flow modeling Flow rate vacuum drop milking machine automatic milking system
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