Power Requirements of Melt Extruders

Mallouk, R. S.; McKelvey, James M.

doi:10.1021/ie50521a035

Cited by 41 publications

(21 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These basic studies analyzed one-dimensional flow through a rectangular channel of infinite width. Later, these models were improved by considering the transverse flow caused by the screw flights (Carley and Strub [145], Squires [146]), the effect of channel curvature (Booy [147], Squires [148]), and the effect of flight clearance (Mallouk and Mc Kelvey [149], Maddock [150]).…”

Section: Melt Conveying Sectionmentioning

confidence: 99%

Fundamentals of Global Modeling for Polymer Extrusion

et al. 2019

View full text Add to dashboard Cite

A review paper is presented on modeling for polymer extrusion for both single screw and twin-screw extrusion. An issue of global modeling is discussed, which includes modeling for solid conveying, melting, melt flow, and co-operation of the screw/die system. The classical approach to global modeling of the extrusion process, which is based on separate models for each section of the screw, i.e., solid transport section, melting and pre-melting sections, and the melt flow section is presented. In this case, the global model consists of the elementary models. A novel continuous concept of global modeling based on CFD (Computational Fluids Dynamics) computations is also presented, and a concept of using the DEM (Discrete Element Method) computation coupled with CFD computations is discussed.

show abstract

Section: Melt Conveying Sectionmentioning

confidence: 99%

Fundamentals of Global Modeling for Polymer Extrusion

et al. 2019

View full text Add to dashboard Cite

show abstract

“…When the clearance between flight faces and barrel wall is narrow a very considerable part of the power consumption takes place in this region. The power consumption is readily corrected for this dissipation (Bernhardt 1959;Mallouk and McKelvey 1953). The increase, A Po, in power consumption is:…”

Section: Extrusion Of Biopolymers In a Single-screw Extruder27mentioning

confidence: 99%

A Review of Fundamental and Engineering Aspects of Extrusion of Biopolymers in a Single‐screw Extruder

Bruin

Zuilichem

Stolp

1978

J Food Process Engineering

View full text Add to dashboard Cite

A review of fundamental and engineering aspects of extrusion in a single‐screw is given. Attention is focussed on flow patterns, flow rates, residence time distributions and power consumption as a function of extruder design and screw rotation speed. The relationship for these engineering variables in extrusion of a purely Newtonian liquid and a power law liquid are reviewed. Where possible these relationships are compared with experimental results from the literature (corn‐grits) and with our own measurements on biopolymers (corn‐grits, defatted soy flour, modified di‐amylopectin).

show abstract

“…From the literature, it is clear that only a limited amount of work have been attempted to develop model/s to predict the total energy consumption of an extruder or its individual components. Mallouk and Mckelvey [23] proposed a theoretical expression to derive the energy requirements of melting section of extruders under the conditions of Newtonian flow, constant screw channel dimensions and isothermal operation. Screw dimensions, screw speed, die pressure and melt viscosity were taken into account for calculating the energy.…”

Section: Modelling Of the Extruder Energy Consumptionmentioning

confidence: 99%

Monitoring and modelling of the energy consumption in polymer extrusion

Abeykoon

Kelly

Vera-Sorroche

et al. 2014

2014 European Control Conference (ECC)

View full text Add to dashboard Cite

Extrusion is one of the fundamental methods in polymer processing and is involved in the production of various commodities in diverse industrial sectors. Being an energy intensive production method, process energy efficiency is one of the major concerns and the selection of the most energy efficient processing conditions is a key to reduce operating expenses. Usually, extruders consume energy through the drive motor, barrel heaters, cooling fans, cooling water pumps, gear pumps, etc. Typically the drive motor is the dominant energy consuming device in a polymer processing extruder while barrel/die heaters are responsible for the second largest energy demand. This study was focused on investigating the total energy demand of an extrusion plant while identifying ways to optimise the energy consumption. Total energy consumption of a single screw extruder was measured over different processing conditions and then modelled as a function of a number of major process variables. The results show that the extruder energy demand is heavily coupled with machine, material and process parameters. Also, the proposed models show excellent agreement with the experimental measurements and hence these should be useful in optimising process energy efficiency.

show abstract

Power Requirements of Melt Extruders

Cited by 41 publications

References 0 publications

Fundamentals of Global Modeling for Polymer Extrusion

Fundamentals of Global Modeling for Polymer Extrusion

A Review of Fundamental and Engineering Aspects of Extrusion of Biopolymers in a Single‐screw Extruder

Monitoring and modelling of the energy consumption in polymer extrusion

Contact Info

Product

Resources

About