Laminar flow and pressure drop of complex fluids in a Sulzer SMX+TM static mixer

Michael, Vipin; Dawson, Mick; Prosser, Robert; Kowalski, Adam

doi:10.1016/j.cherd.2022.03.018

Cited by 7 publications

(3 citation statements)

References 47 publications

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“…Furthermore, the boundary conditions merge as a difference operator as well. G : R N v (N x +1)(N y +1) −→ R 2N v (N x +N y ) , as shown in Equation (25).…”

Section: Mathematical Model With the Effect Of Pillars And Stripesmentioning

confidence: 99%

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Structural Behavior of Water Flow Glazing: Stress and Elastic Deformation Considering Hydrostatic Pressure

Del Ama Gonzalo,

Moreno Santamaría,

Escoto López

et al. 2023

Sustainability

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The fluid inside a Water Flow Glazing (WFG) panel creates a linear pressure distribution along the vertical dimension. Tension stress can cause problems with the sealant; compression stress can cause deflections in the glass panel. Increasing the glass thickness until the deflection is below the required limit implies more weight and cost of the glazing. Another solution is to limit glass deflection by inserting pillars or stripes into the cavity between two glass panes. The novelty of this article was to test a High-Order Finite Difference Method for linear and non-linear models to evaluate the effect of hydrostatic pressure produced by the fluid chamber on WFG panels. The methodology was tested on two case studies to assess the tension and deflection of the glass panes to guarantee the structural stability of WFG. The main conclusion drawn was that a linear plate model was sufficient to dimension the width, length, and thickness of the WFG panel. Furthermore, the mathematical model provided criteria to keep the glass tension below 45 MPa for tempered glass and the maximum deflection as the minimum between 1‰ of the glass height and 10% of the water chamber thickness. Introducing pillars or stripes solved hydrostatic pressure problems when the panel’s height was above 1.5 m.

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“…Furthermore, the boundary conditions merge as a difference operator as well. G : R N v (N x +1)(N y +1) −→ R 2N v (N x +N y ) , as shown in Equation (25).…”

Section: Mathematical Model With the Effect Of Pillars And Stripesmentioning

confidence: 99%

“…Conversely, it determines the pressure drop in the WFG element and, thus, the required electrical pump power [23]. Laminar flow models are characterized by the accuracy with which numerical methods quantify their performance and internal flow patterns [24,25]. The optimum fluid flow has been analyzed in previous articles.…”

Section: Introductionmentioning

confidence: 99%

Structural Behavior of Water Flow Glazing: Stress and Elastic Deformation Considering Hydrostatic Pressure

Del Ama Gonzalo,

Moreno Santamaría,

Escoto López

et al. 2023

Sustainability

View full text Add to dashboard Cite

show abstract

“…[8] More than 30 different types of static mixers are commercially present which vary in geometry and its application. [3,[9][10][11][12][13][14][15][16] Kenics static mixer is used for fluids in all regimes. Corrugated plates mixer is suitable for low viscous fluids in transient and turbulent regimes.…”

Section: Introductionmentioning

confidence: 99%

Laminar mixing of Newtonian and non‐Newtonian fluids in SMX static mixer

Gayen,

Swamy,

Hari

et al. 2024

Can J Chem Eng

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This report is focused on understanding the mixing performance of Newtonian and non‐Newtonian fluids in an SMX static mixer through computational fluid dynamics (CFD) study in Simcenter STAR‐CCM+. For this, the standard SMX mixer with four mixer elements of radius 26 mm was chosen. The aspect ratio (L/D) was taken as 1. The model constructed was compared using pressure drop ratio values available in literature. First, the design was validated for Newtonian fluid, then for shear‐thinning fluid (non‐Newtonian). Mixing patterns produced through particle tracking approach revealed how blending improved as the fluid moved downstream and interacted with increasing number of mixer elements. A sensitivity study was undertaken to investigate the effect of particle injection mechanism on the mixing process. Two injection methods, vertical and horizontal, were explored to check the influence of injection position on mixing. The results indicate that for the given configuration irrespective of the injection location, at least four mixing elements are needed to achieve good mixing for both Newtonian and shear‐thinning fluids investigated in this study. Statistical reports were used to quantify mixing to understand the mixing behaviour for Newtonian and non‐Newtonian fluids with change in Reynolds number. At high Reynolds number, non‐Newtonian fluids exhibited better mixing abilities. Further, efforts were taken to optimize the various design parameters to produce the most optimum solution with a single mixer element for Newtonian fluid.

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Study on mixing performance of perforation static mixers applied to high viscosity polymer mixing

Wang,

et al. 2024

Can J Chem Eng

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To investigate the effect of perforation structure on the mixing performance, three kinds of perforation arrangement were used to modify Kenics static mixer, which were radial arrangement, axial arrangement, and diagonal arrangement. The corresponding modified static mixers were constructed and named PSM‐R, PSM‐A, and PSM‐D. The flow of polymer melts inside them were simulated using Polyflow software. The effects of perforation arrangement, perforation diameter (d), and perforation spacing distance (δ) on segregation scale (S) and pressure drop (Δp) were analyzed using single‐factor experiment. The results showed that the perforation structure was helpful to improve the mixing effect. The impact of d on S and Δp was more significant. While increasing d of PSMs, S firstly decreased and then increased. However, Δp monotonously decreased. The impact of δ on S and Δp was smaller. The model of Reynolds number (Re) versus Δp was obtained by fitting and the effect of Re on Δp was significant. In all PSMs, PSM‐A with d of 3 mm and δ of 7 mm has the smallest S, that was reduced by 26.2%, compared to the standard Kenics static mixer.

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Laminar flow and pressure drop of complex fluids in a Sulzer SMX+TM static mixer

Cited by 7 publications

References 47 publications

Structural Behavior of Water Flow Glazing: Stress and Elastic Deformation Considering Hydrostatic Pressure

Structural Behavior of Water Flow Glazing: Stress and Elastic Deformation Considering Hydrostatic Pressure

Laminar mixing of Newtonian and non‐Newtonian fluids in SMX static mixer

Study on mixing performance of perforation static mixers applied to high viscosity polymer mixing

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