Tube-type viscometer for agricultural semi liquid fluids and suspensions



Responsible scientist:  Dr.-Ing. habil. Meno Türk                     Research topic 1.3.4


Problem
Agricultural organic suspensions (liquid manure, liquid feed and bio sludge) have often a coarse settling structure, non Newtonian flow behaviour and inclination of sedimentation. Than it is not possible to use known rotational type viscometers.


Solution
In the ATB was developed a transportable computer-aided tube-type viscometer for measuring of flow behaviour and viscosity time functions.


Measuring works
  • Viscosity time functions η = f (t) at volume flow Q = const.
  • Tube characteristic curves Q = f (Δp/Δl) at different inner tube diameters di
  • Flow curves τ = f (DN)
  • Recrit: Laminar turbulent flow transmission


Technical data
  • Inner tube diameter di = 27.06 mm, 34.09 mm, 42.37 mm
  • Measuring tube length Δl = 3.6 m
  • Volume flow Q = 0 to 10 m3/h
  • Flow velocity v = 0 to 4.8 m/s
  • Newtonian flow rate DN = 0 to 1400 1/s
  • Sample volume: circa 100 l




Rohrviskosimeter
Tube-type viscometer


 
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