Analytical Model for the Throughput and Drive Power Calculation in the Melting Section of Single Screw Plasticizing Units considering Wall-Slippage

2009 ◽  
Vol 24 (1) ◽  
pp. 23-30 ◽  
Author(s):  
H. Potente ◽  
M. Bornemann ◽  
M. Kurte-Jardin
Keyword(s):  
Analytical Model ◽  
Power Calculation ◽  
Drive Power ◽  
Single Screw ◽  
Wall Slippage

Analytical Model for the Throughput and Drive Power Calculation in the Melting Section of Single Screw Plasticizing Units considering Wall-Slippage

2009 ◽  
Vol 24 (1) ◽  
pp. 31-40 ◽  
Author(s):  
H. Potente ◽  
M. Bornemann ◽  
M. Kurte-Jardin
Keyword(s):  
Analytical Model ◽  
Power Calculation ◽  
Drive Power ◽  
Single Screw ◽  
Wall Slippage

Non-isothermal Model for the Drive Power Calculation of Single-screw Plasticating Units

2008 ◽  
Vol 23 (3) ◽  
pp. 345-350 ◽  
Author(s):  
H. Potente ◽  
M. Bornemann
Keyword(s):  
Power Calculation ◽  
Drive Power ◽  
Isothermal Model ◽  
Single Screw

Numerical and Analytical Investigation of Viscous Fluids in a Screw Extruder

2016 ◽  
Author(s):  
Mustafa Ozsipahi ◽  
Sertac Cadirci ◽  
Hasan Gunes
Keyword(s):  
Analytical Model ◽  
Fluid Transport ◽  
Stokes Equations ◽  
Navier Stokes ◽  
Screw Extruder ◽  
Navier Stokes Equations ◽  
Flow Solver ◽  
Single Screw ◽  
Single Screw Extruder ◽  
Newtonian Type

This study presents a flow model for a single screw extruder which has been investigated by means of analytical and numerical methods. Flow phenomena in single screw extruders has evoked attention of many researchers since non-Newtonian type of fluid transport by an extruder is utilized in many industrial applications. In this study we focused on the Newtonian-type of fluid transport by a single screw extruder since we aimed to generate an analytical model for the simplified Navier-Stokes equations under certain boundary conditions. The analytical model for a steady, laminar, isothermal and incompressible flow is derived using integral transform technique for a highly viscous flow where the convective acceleration terms are assumed to be negligible. Numerical investigation is conducted by an incompressible, laminar, finite volume based flow solver using a Volume of Fluid (VoF) approximation. An appropriate single-screw extruder model is used for the simulations. The novelty of the study relies on the usage of a simplified analytical model for a highly viscous flow and the comparison between the analytical and numerical results where the numerical results are obtained by a two-phase flow solver for the full Navier-Stokes equations using the complex extruder geometry.

Pressure/Throughput Behavior of a Single-screw Plasticising Unit in Consideration of Wall Slippage

2002 ◽  
Vol 17 (2) ◽  
pp. 102-107 ◽  
Author(s):  
H. Potente ◽  
H. Ridder
Keyword(s):  
Single Screw ◽  
Wall Slippage

DEVELOPMENT OF NUT-FREE ROLLER DRIVE POWER CALCULATION METHOD

2015 ◽  
pp. 10-20
Author(s):  
D. S. Blinov ◽  
M. I. Morozov
Keyword(s):  
Calculation Method ◽  
Power Calculation ◽  
Drive Power ◽  
Roller Drive

Description of the Pressure/Throughput Behavior of a Single-screw Plasticating Unit in Consideration of Wall Slippage Effects for Non-Newtonian Material and 1-D flow

2006 ◽  
Vol 21 (3) ◽  
pp. 272-282 ◽  
Author(s):  
H. Potente ◽  
K. Timmermann ◽  
M. Kurte-Jardin
Keyword(s):  
Single Screw ◽  
Wall Slippage

Screw Drive Power of Single Screw Plasticating Units With Smooth Barrels

1999 ◽  
Vol 14 (1) ◽  
pp. 21-27 ◽  
Author(s):  
H. Potente ◽  
C. Obermann
Keyword(s):  
Drive Power ◽  
Single Screw ◽  
Screw Drive

An Analytical Model of Partial and Thorough Melting in Single-screw Extruders

1991 ◽  
Vol 6 (4) ◽  
pp. 297-303 ◽  
Author(s):  
H. Potente
Keyword(s):  
Analytical Model ◽  
Single Screw ◽  
Single Screw Extruders ◽  
Screw Extruders

scholarly journals Drive power calculation of a crushing machine working in shear

2021 ◽  
Vol 330 ◽  
pp. 02004
Author(s):  
Aleksandr Nikitin ◽  
Nikita Kurochkin ◽  
Yonghui Yang
Keyword(s):  
Energy Consumption ◽  
Power Calculation ◽  
Drive Power ◽  
Tangential Stresses ◽  
Processed Material

The description of crusher design is given, in which the destruction of the processed material occurs due to the forces acting on the crushed piece in the same plane towards each other, while in the processed piece only tangential stresses arise. It makes possible to reduce the energy consumption per unit of finished product by almost two times.

Stopping-power determination for compound by EELS

1994 ◽  
Vol 52 ◽  
pp. 948-949 ◽  
Author(s):  
David C. Joy ◽  
Suichu Luo ◽  
John R. Dunlap ◽  
Dick Williams ◽  
Siqi Cao
Keyword(s):  
Energy Loss ◽  
Electron Energy ◽  
Electron Energy Loss Spectroscopy ◽  
Materials Science ◽  
Average Energy ◽  
Stopping Power ◽  
Accurate Information ◽  
Power Calculation ◽  
Coulomb Collisions ◽  
Electron Energy Loss

In Physics, Chemistry, Materials Science, Biology and Medicine, it is very important to have accurate information about the stopping power of various media for electrons, that is the average energy loss per unit pathlength due to inelastic Coulomb collisions with atomic electrons of the specimen along their trajectories. Techniques such as photoemission spectroscopy, Auger electron spectroscopy, and electron energy loss spectroscopy have been used in the measurements of electron-solid interaction. In this paper we present a comprehensive technique which combines experimental and theoretical work to determine the electron stopping power for various materials by electron energy loss spectroscopy (EELS ). As an example, we measured stopping power for Si, C, and their compound SiC. The method, results and discussion are described briefly as below.The stopping power calculation is based on the modified Bethe formula at low energy:where Neff and Ieff are the effective values of the mean ionization potential, and the number of electrons participating in the process respectively. Neff and Ieff can be obtained from the sum rule relations as we discussed before3 using the energy loss function Im(−1/ε).

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