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FUNDAMIX® Vibromixer Characterization.
KTH, School of Engineering Sciences (SCI), Solid Mechanics (Dept.).
2014 (English)Independent thesis Advanced level (degree of Master (One Year)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

The characterization of the vibromixer principles, in particular FUNDAMIX® technology produced by the Swiss company Dr.Mueller AG, is the focus of this study. Tests varying the vibration’s frequencies and amplitudes, as well as the mixing plate geometry, in terms of number of holes and their diameter, are done.

Interesting results regarding these parameters are obtained, proving problem complexity and previous experience. Higher amplitudes and frequencies result in a better fluid dynamic performance of the vibromixer, i.e. flow rate formed due to pumping capacity of the plate and creating the liquid recirculation.

The available total area of the holes should be limited too. Different fluid viscosities (up to 1212mPa/s) are tested and possible carbon fiber improvements in the shaft production briefly discussed. Finally, a Computational Fluid Dynamic approach is done and possible further researches are covered.

Abstract [sv]

Blandningsegenskaperna hos en vibreringsblandare av med FUNDAMIX®-teknik har undersökt och resultaten beskrivs här. Experiment utfördes där frekvens och amplitud hos vibrationen tillsammans med blandningsplattans geometri i termer av antal hål och deras diameter varierades. Primärt uppmättes tiden för en inblandad komponent att nå vätskeytan från stillastående på botten av blandningskärlet. Resultaten visar att blandningsproblemet är komplext. Högre amplitud och frekvens resulterade i en bättre fluidmekaniska prestanda hos vibreringsblandaren, d.v.s. flödeshastighet och pumpkapaciteten hos plattan förbättrades. Den totala ytan hos hålen bör också begränsas för bättre prestanda. Olika viskositeter(upp till 1212 mPa/s) hos mediet testades. Slutligen togs en numerisk modell för strömningssimuleringar fram och spänningar i kärlet och stång skattades med avseende på plasticering i kärlet och instabilitet hos stången. Överskattning av lasterna visade att befintlig konstruktion är strukturellt konservativ.

Place, publisher, year, edition, pages
2014. , 42 p.
Keyword [en]
vibromixer, FUNDAMIX®, mixing time, viscosity, CFD.
National Category
Applied Mechanics
Identifiers
URN: urn:nbn:se:kth:diva-176503OAI: oai:DiVA.org:kth-176503DiVA: diva2:867867
External cooperation
DrM, Zürich
Subject / course
Solid Mechanics
Examiners
Available from: 2015-11-06 Created: 2015-11-06 Last updated: 2015-11-06Bibliographically approved

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CiteExportLink to record
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