Aerating static mixers prevent fouling

2019 ◽  
Vol 570-571 ◽  
pp. 537-546 ◽  
Author(s):  
Sarah Armbruster ◽  
Armand Brochard ◽  
Jonas Lölsberg ◽  
Süleyman Yüce ◽  
Matthias Wessling
Keyword(s):  
Static Mixers

Solid liquid mixing at high concentration with SMX static mixers

2000 ◽  
pp. 93-100 ◽  
Author(s):  
O. Furling ◽  
P.A. Tanguy ◽  
L. Choplin ◽  
H.Z. Li
Keyword(s):  
High Concentration ◽  
Static Mixers ◽  
Liquid Mixing ◽  
Solid Liquid

Evaluation of static mixers as convection promoters in the ultrafiltration of dairy liquids

Desalination ◽  
1980 ◽  
Vol 35 ◽  
pp. 149-167 ◽  
Author(s):  
J. Hiddink ◽  
D. Kloosterboer ◽  
S. Bruin
Keyword(s):  
Static Mixers

Liquid-liquid emulsification by static mixers for use in microencapsulation

1996 ◽  
Vol 13 (4) ◽  
pp. 419-433 ◽  
Author(s):  
Y. F. Maa ◽  
C. Hsu
Keyword(s):  
Static Mixers

A Novel Parameter for the Evaluation of Static Mixers

2018 ◽  
Author(s):  
Morgan Thomas ◽  
Thomas Eldredge ◽  
Hector Medina ◽  
David Fazzina
Keyword(s):  
Heat Transfer ◽  
Fluid Dynamics ◽  
Operating Time ◽  
Entropy Change ◽  
Time Cost ◽  
Transfer Rates ◽  
Static Mixers ◽  
Mixing Parameter ◽  
Potential Applications ◽  
Computational Fluid Dynamics Cfd

Static, or motionless, mixers are widely used in applications that involve chemical reactions, heat transfer, blending of fluids, or a combination of these. Within those applications, mixing can affect various parameters such as heat or mass transfer rates, process operating time, cost, safety, and product quality. Therefore, it is crucial to assess the performance of static mixers. In general, their performance is evaluated based on their ability to carry out mixing while minimizing energy loss. To accomplish this, a novel mixing parameter, the M number, is proposed and evaluated. The M number is a unitless parameter that describes the effects of the mixer using entropy change and pressure drop. The parameter is compared to another method of mixing evaluation that relies on Covariance (CoV) change across the mixer. Computational Fluid Dynamics (CFD) is executed using both methods to evaluate two static mixers and compare the results of each method. Potential applications for the M number are discussed and its limitations are noted.

scholarly journals Extraction of Indium From Sulphate Solutions with D2EHPA Solutions Using Static Mixers

1995 ◽  
Vol 05 (C7) ◽  
pp. C7-135-C7-142
Author(s):  
N. Nacevski ◽  
F. Poposka ◽  
B. Nikov
Keyword(s):  
Static Mixers

scholarly journals COMPARISON OF DIFFERENT HYDRODYNAMIC CHARACTERISTICS OF AIR- WATER SYSTEM USING DISSIMILAR MOTIONLESS MIXERS

2021 ◽  
Author(s):  
Dr. Mazhar Hussain
Keyword(s):  
Mass Transfer ◽  
Power Consumption ◽  
Dissolved Oxygen ◽  
Bubble Diameter ◽  
Water System ◽  
Hydrodynamic Characteristics ◽  
Flow Rates ◽  
Static Mixers ◽  
Air Bubble ◽  
Transfer Study

The hydrodynamic characteristics of mixing fluids are always the points to consider in improvement of their mixing quality especially using motionless mixers normally stated as “Static Mixers”. Motionless mixing technique was adopted for Air-Water system with the advantage of negligible power consumption over dynamic mixers. Different hydrodynamic characteristics were experimented using “Baffle Type” static element and were compared to those of already used in recent studies. Dissolved oxygen content, Static mixer geometry (i.e. Baffle, Blade, Wheel, Plate and Needle), mixing fluids flow rates were chosen as variables and selected in this content as rate of mass transfer study which founds out to be significant using “Baffle Type” static element. Volumetric mass transfer was also achieved at higher scale which gives a clear indication of increase the mass transfer coefficient in between the comparison of “Baffle type” element and other mentioned elements. Pressure droplet and depletion in Air bubble size across static elements were visually perceived using Hg-Manometer and still photography respectively. A mathematical model was also developed portraying the Air bubble diameter at different flow rates for this system. Other hydrodynamics like higher Dissolved Oxygen (DO) Content, Less Power consumption were also found to be more advantageous for “Baffle Type” static element.

scholarly journals DEM analysis of particle transport in static mixers

Termotehnika ◽  
2016 ◽  
Vol 42 (1) ◽  
pp. 38-50
Author(s):  
Aca Jovanovíc ◽  
Milada Pezo ◽  
Lato Pezo ◽  
Ljubinko Levic ◽  
Biljana Loncar
Keyword(s):  
Particle Transport ◽  
Static Mixers ◽  
Dem Analysis

Simulation of the Laminar Flow in a PRIMIX Static Mixer

2002 ◽  
Author(s):  
R. F. Mudde ◽  
C. Van Pijpen ◽  
R. Beugels
Keyword(s):  
Pressure Drop ◽  
Particle Tracking ◽  
Experimental Validation ◽  
Independent Solution ◽  
High Accuracy ◽  
Static Mixer ◽  
Laminar Regime ◽  
Time Step ◽  
Static Mixers ◽  
Direct Use

The PRIMIX helical static mixer has been investigated using numerical simulations. The flow is in the laminar regime (Re = 1 to 1000). The simulations concentrate on the pressure drop and on the use of particle tracking for mixing studies. For the pressure drop, experimental validation is provided. It is found that the pressure drop can be simulated with high accuracy for Re < 350. For higher Re-values no grid independent solution could be obtained and the experimental results no longer agree with those of the simulations. The simulated pressure drop results scaled to the empty pipe pressure drop, can be well summarized as K = 4.99 + Re/31.4. Using Particle Tracking it has been possible to reproduce literature data. However, it has been shown that the obtained results are rather sensitive to the choice of the time step. This limits the direct use of particle tracking techniques for studying the mixing of static mixers in the laminar regime.

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