Scale-up of pump-mix mixers using CFD Related Information

[PDF] CFD modeling of pilot-scale pump-mixer: Single-phase

Results of CFD simulations have been used to find out two macroscopic performance parameters of pump-mixer—power consumption and head generated by the impeller. The simulation results have been compared with the experimental data obtained on a pilot-scale setup. Good agreement between CFD predictions and experimental results is observed.

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Selecting the proper mixer is largely based upon experience and widely accepted rules of thumb for digester mixer design. However, advanced tools like computational fluid dynamics (CFD) struggle to effectively model the complex interactions of solids, grit, liquids, and gas that make up digester sludge.

The "Original" Mud Mixer - SPX FLOW

Computational Fluid Dynamics (CFD) software. CFD models the combined dynamic effects of impeller design, vessel geometry and fluid properties. This powerful capability allows quick evaluation of existing process mixing problems, and significantly reduces the cost of pilot scale experiments and full scale trials. Lightnin has 90 years of unrivaled

Study on the Effect of Jet Velocity on Mixing Performance

The jet mixer is one of the simplest pieces of equipment used in different processes as a good substitute for the conventional technique (using impeller) for 50 years. The reduction in contact surface, efficiency, and mixing time is achieved by using the disturbance factor effectively.1 In comparison with mechanical agitators/mixers, jet mixers

Pump Impeller I Application Guide I SimScale Simulation Hub

Using CFD simulation from SimScale, designers can evaluate parameters of interest, such as the pressure head and hydraulic efficiency. Users can also use FEA to test the stress and strain applied to pump impellers, as well as pressure from the water flow. Additionally, SimScale offers thermodynamic analysis that can benefit engineers dealing

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KSB Know-how: Planning Information for Submersible Mixers

In addition, large-scale waste water treatment plants also use digestion tanks (digesters). In the digestion tank, thickened raw sludge is heated up to a temperature of 36 - 37 °C and continuously recirculated by special mixers or pumps. The frequently chosen egg shape …

VALIDATION OF CFD CODE ANSYS CFX AGAINST …

Validation of the CFD code ANSYS CFX was performed in the frame of the experimental and analytical investigations of mixing of coolant flows with different saline concentration fulfilled in EDO "GIDROPRESS" at 4-loop test facility modeling reactor WWER-1000 with the scale 1:5.

VALIDATION OF CFD CODE ANSYS CFX AGAINST …

Validation of the CFD code ANSYS CFX was performed in the frame of the experimental and analytical investigations of mixing of coolant flows with different saline concentration fulfilled in EDO "GIDROPRESS" at 4-loop test facility modeling reactor WWER-1000 with the scale 1:5.

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Scale-up of pump-mix mixers using CFD - ScienceDirect

Jan 01, 2010 · Traditionally (before the advent of CFD) these practicing engineers frequently carried out scale-up using rules like equal tip speed, equal power per unit volume, etc. Many times these scale-up rules are applied just based on experience without proper rational and understanding.

Experiments and CFD Calculations on Coolant Mixing in PWR

tion and pump start-up. The scaling was designed to meet requirements of scale-up to the original reactor and low costs. A scaling of 1:5 was found to be some optimum with respect to this criteria. The scal-ability was shown by the help of CFD calculations demonstrating that the flow fields and

CFD Modeling of Mixing Facilities

Fluid Flow Through Centrifugal Pump | Tutorial | Simscale

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CFD modeling of pilot-scale pump-mixer: Single-phase head

Fluid Flow Through Centrifugal Pump | Tutorial | Simscale

ADVANCED MIXING MODELS (Technical Report) | OSTI.GOV

Feb 14, 2011 · Although there is considerable technical literature on mixing and solid suspension in agitated tanks, very little literature has been published on jet mixing in a large-scale tank. One of the main objectives in the waste processing is to provide feed of a uniform slurry composition at a certain weight percentage (e.g. typically {approx}13 wt

Agitation & mixing presentation, group d

Oct 25, 2017 · Dilute dispersions are the easiest processes to scale up. 31. SCALE UP OF LIQUID-LIQUID MIXING The first step is to understand the goals of the process and to acquire accurate data for all components, including physical, chemical, and interfacial properties as well as reaction kinetics. This also includes the influence of minor impurities.

Prediction of mixer pump effectiveness for sludge mixing

Dec 31, 1996 · The U.S. Department of Energy's Office of Scientific and Technical Information

Fluid flow characterization of liquid---liquid mixing in

Agitation in a mixer-settler is one of the most common operations, yet presents one of the greatest challenges in the area of computer simulation. Mixer-settlers typically contain an impeller mount

KSB Know-how: Planning Information for Submersible Mixers

Mixing up pump sump contents 29 4. Mixer positioning 49 Mixing radius 49 5. CFD 52 Objectives of CFD calculations 53 Photo credits Authors. 04 1. Amamix submersible mixer Amamix is a direct-driven, close-coupled, horizontal, fully large-scale waste water treatment plants also use digestion tanks (digesters). In the digestion tank, thickened