Papermaking Fundamentals

May 4 - 5, 2021 | VIRTUAL and October 3-6, 2021 | LIVE! in Atlanta, GA USA

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Papermaking Fundamentals (PF)

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The Papermaking Fundamentals track will focus on best available technologies and the progression of new technologies relating to the fluid mechanics.

 

Papermaking Fundamentals Technical Program

The program is currently under development and subject to change. Visit our website often for program updates.

 
      
           
 
PF1: Developments in Drying
    Session Chair: Paul Krochak, RISE  
      PF1.1 Unique Steel Belt Press Technology for Development of High Strength Papers from HYP Tove Joelsson, Mid Sweden University
      PF1.2 Understanding of Removal of Water Trapped Inside a Single Cellulose Fiber Zahra Noori, Worcester Polytechnic Institute
      PF1.3 Preliminary Numerical Investigation of the Effect of Ultrasound on Paper Drying Munewer Elf Asar, Worcester Polytechnic Institute
           
 
PF2: Nano-scale Phenomena
    Session Chair: Ignacio De San Pio, RISE  
      PF2.1 Towards Truly Repulpable Wet-strengthened Papers Robert Pelton, McMaster University
      PF2.2 Bulking Method for Chemical Pulps and its Effect on Cellulose Structure Caroline Ankerfors, RISE - Research Institutes of Sweden
       PF2.3 TBA  
           
 
  
           
 
PF3-PA6: Advances in Forming and Refining (Joint Session)
    Session Chair: Darren Swales, Kemira  
      PF3-PA6.1 Efficient Management of Fines in the Stock Flow Prior to Headbox Jouni Matula, Wetend Technologies Ltd
      PF3-PA6.2 Numerical Simulation of a Low Consistency Single-Disc Refiner Including Analysis of Experimental Rheological Data Marcus Britz, J.M. Voith SE & Co. KG
      PF3-PA6.3 Modelling of a Viscoelastic Compression Model for the Simulation of Mechanical Dewatering Processes Mustafa Usta, Georgia Institue of Technology
       PF3-PA6.4 Fundamental Understanding of Bound Water Removal in Paper Drying Process Cyrus Aidun, Georgia Institute of Technology
           
 
PF4: Fiber Water Interactions
 

 

Session Chair: Doug Coffin, Miami University

  
      PF4.1 Computer Simulation of Liquid Wetting in Low Density Fibrous Networks  D. Steven Keller, Miami University
      PF4.2 Fiber Water Interactions in Refining Michael Kocurek, North Carolina State University
      PF4.3 Chemical Reactivity of Nanofibrillated Cellulose with Varying Levels of Fibrillation for Surface Modification for Paper Product Application Khandoker Salem, North Carolina State University 
           
 
PF5: Mechanical Performance
    Session Chair: D. Steven Keller, Miami University  
      PF5.1 Understanding Wet Tear Strength at Varying Moisture Content in Handsheets Adele Panek, WestRock
      PF5.2 Historical Perspectives of Corrugated Box Testing for 2020 Douglas Coffin, Miami University
      PF5.3 Steady-State Tearing in Copy Paper Exhibits Three Stages of Deformation Sarah Paluskiewicz, Georgia Institute of Technology
           
 
      
           
 
PF6: Advances in Pressing Fundamentals
    Session Chair: John Xu, AstenJohnson  
      PF6.1 Wet Pressing and Product Quality - Review of Previous Pilot Machine Trials David McDonald, JDMcD Consulting, Inc.
      PF6.2 Three Dimensional Visualization and Characterization of Paper Machine Fabrics and Their Relationship to Their Properties and Dewatering Performance Shri Ramaswamy, University of Minnesota
      PF6.3 Equilibrium Moisture Content in Wet Pressing of Paper David McDonald, JDMcD Consulting, Inc.
      PF6.4 TBA Dewei, Qi
           

 

Featured Presentations

 

Presenter:

David McDonald

JDMcD Consulting Inc.

  
Equilibrium Moisture Content in Wet Pressing of Paper (PF6.3)

 

Equilibrium moisture is a limiting factor in achieving high solids in the later stages of pressing or pressing low basis weight grades. Learn about a new model that relates equilibrium moisture directly to the pore size distribution of fibers as measured by the solute exclusion technique.

The model shows how chemical pulping and refining increase equilibrium moisture by increasing pore sizes in fibers, an increase which leads to lower pressed solids and greater energy expenditure in the dryer section. Also, learn more about lowering equilibrium moisture without compromising paper strength.
     

Presenter:

Marcus Britz

 J.M. Voith SE & Co. KG

  
Numerical Simulation of a Low Consistency Single-Disc Refiner including Analysis of Experimental Rheological Data (PF3-PA6.2)

 

Refining of mechanical pulp takes place in the stock preparation and is an important step within the entire papermaking process, since it has a major impact on the final paper product. Additionally, more efficient refiners lead to reduced power demand and thus less costs and CO2 emissions. To achieve this aim, Computational Fluid Dynamics (CFD) is an essential tool within the refiners’ development process. However, adequate rheological models of the pulp are essential.

Learn about a rheological model taken from the data collected experimentally with CFD simulation using three fluid approaches: (1) water, (2) 1% Carboxy Methyl Cellulose and (3) fiber suspension.