Anders Karlström

Head of Department at Chalmers, Electrical Engineering

Showing 68 publications

2019

On the modeling of tensile index from larger data sets

Anders Karlström, Lars Johansson, J. Hill
Nordic Pulp and Paper Research Journal
Journal article
2019

Raw data for Tensile index estimations from a CD72-refiner

Fredrik Bengtsson, Anders Karlström, Jan Hill et al
Report
2018

TMP properties and refining conditions in a CD82 chip refiner. Part I: Step changes of process variables, description of the tests

R. Ferritsius, O. Ferritsius, J. Hill et al
Nordic Pulp and Paper Research Journal. Vol. 33 (1), p. 69-81
Journal article
2018

TMP properties and refiner conditions in a CD82 chip refiner at different operation points. Part II: Comparison of the five tests

R. Ferritsius, O. Ferritsius, J. Hill et al
Nordic Pulp and Paper Research Journal. Vol. 33 (1), p. 82-94
Journal article
2018

Control strategies for refiners Part II: Consistency control in twin-disc refining zones using temperature profile information

Anders Karlström, J. Hill
Nordic Pulp and Paper Research Journal. Vol. 33 (1), p. 44-57
Journal article
2018

Control strategies for refiners Part I: Soft sensors for CD-refiner control

Anders Karlström, J. Hill
Nordic Pulp and Paper Research Journal. Vol. 33 (1), p. 28-43
Journal article
2017

CTMP process optimization Part I: Internal and external variables impact on refiner conditions

Anders Karlström, J. Hill
Nordic Pulp and Paper Research Journal. Vol. 32 (1), p. 35-44
Journal article
2017

Process Considerations and its demands on TMP property measurements - a study on tensile index

O. Ferritsius, R. Ferritsius, J. Hill et al
Nordic Pulp and Paper Research Journal. Vol. 32 (1), p. 45-53
Journal article
2017

CTMP Process Optimization Part II: Reliability in Pulp and Handsheet Measurements

Anders Karlström, Jan Hill
Nordic Pulp and Paper Research Journal. Vol. 32 (2), p. 253-265
Journal article
2017

CTMP Process Optimization Part III: On the Predicition of Scott-Bond, Z-strength and Tensile index

Anders Karlström, Jan Hill
Nordic Pulp and Paper Research Journal. Vol. 32 (2), p. 266-279
Journal article
2016

Pulp property development Part II: Process non-linearities and their influence on pulp property development

Anders Karlström, J. Hill, R. Ferritsius et al
Nordic Pulp and Paper Research Journal. Vol. 31 (2), p. 287-+
Journal article
2016

Pulp property development Part III: Fiber residence time and consistency profile impact on specific energy and pulp properties

Anders Karlström, J. Hill, O. Ferritsius et al
Nordic Pulp and Paper Research Journal. Vol. 31 (2), p. 300-307
Journal article
2016

Refining Efficiency for Future CTMP and TMP systems Co-optimizing Fundamental Wood Material Knowledge with a Soft Sensor Control Approach

Anders Karlström, P. Engstrand
International Mechanical Pulp conference, p. 304-316
Paper in proceedings
2015

Refiner optimization and control Part IV: Long term follow up of control performance in TMP processes

Anders Karlström, K. Eriksson, J. Hill
Nordic Pulp and Paper Research Journal. Vol. 30 (3), p. 426-435
Journal article
2015

Pulp property development Part I: Interlacing under-sampled pulp properties and TMP process data using piece-wise linear functions

Anders Karlström, J. Hill, R. Ferritsius et al
Nordic Pulp and Paper Research Journal. Vol. 30 (4), p. 599-608
Journal article
2015

Refiner optimization and control Part III: Natural decoupling in TMP refining processes

Anders Karlström, J. Hill
Nordic Pulp and Paper Research Journal. Vol. 30 (3), p. 417-425
Journal article
2014

On energy efficiency in chip refining

R. Ferritsius, J. Hill, O. Ferritsius et al
International Mechanical Pulping Conference, IMPC 2014; Helsinki; Finland; 2 June 2014 through 5 June 2014
Paper in proceedings
2014

Fiber energy efficiency Part III: Modeling of bar-to-fiber interaction

Anders Karlström, Karin Eriksson
Nordic Pulp and Paper Research Journal. Vol. 29 (3), p. 401-408
Journal article
2014

Refiner optimization and control Part I: Fiber residence time and major dynamic fluctuations in TMP refining processes

Anders Karlström, J. Hill
Nordic Pulp and Paper Research Journal. Vol. 29 (4), p. 635-652
Journal article
2014

Fiber energy efficiency Part II: Forces acting on the refiner bars

Anders Karlström, Karin Eriksson
Nordic Pulp and Paper Research Journal. Vol. 29 (2), p. 332-343
Journal article
2014

Refiner optimization and control Part II: Test procedures for describing dynamics in TMP refining processes

Anders Karlström, J. Hill
Nordic Pulp and Paper Research Journal. Vol. 29 (4), p. 653-662
Journal article
2014

Fiber energy efficiency Part I: Extended entropy model

Anders Karlström, K. Eriksson
Nordic Pulp and Paper Research Journal. Vol. 29 (2), p. 322-331
Journal article
2014

On techniques for measuring fiber distribution in refining zones

K. Eriksson, Anders Karlström
International Mechanical Pulping Conference, IMPC 2014; Helsinki; Finland; 2 June 2014 through 5 June 2014
Paper in proceedings
2014

Fiber energy efficiency Part IV: Multi-scale modeling of refining processes

Anders Karlström, Karin Eriksson
Nordic Pulp and Paper Research Journal. Vol. 29 (3), p. 409-417
Journal article
2011

Improved hydrogen peroxide bleaching of mechanical pulps using carbon dioxide in combination with sodium and magnesium based alkali sources

L. Logenius, P. Engstrand, Anders Karlström et al
16th International Symposium on Wood, Fiber and Pulping Chemistry - Proceedings, ISWFPC. Vol. 1, p. 741-745
Paper in proceedings
2009

Internal interconnections impact on control performance in a thermomechanical pulping process

Karin Eriksson, Anders Karlström, Claes Breitholtz
2009 10th European Control Conference, ECC 2009; Budapest; Hungary; 23 August 2009 through 26 August 2009, p. 3486-3491
Paper in proceedings
2009

Refining zone temperature control: a good choice for pulp quality control?

Karin Eriksson, Anders Karlström
2009 International Mechanical Pulping Conference, IMPC 2009; Sundsvall; Sweden; 31 May 2009 through 4 June 2009, p. 67-74
Paper in proceedings
2009

Modeling approaches for critical process limitations in the operation of thermomechanical pulp refiners

Karin Eriksson, Anders Karlström
Nordic Pulp and Paper Research Journal. Vol. 24 (2), p. 231-238
Journal article
2009

Multi-rate optimal control of the TMP-refining processes

Anders Karlström, A.J. Isaksson
TAPPI International Mechanical Pulping Conference, Sundsvall, Sweden., p. 255-260
Paper in proceedings
2009

A note on decoupling

Karin Eriksson, Claes Breitholtz, Anders Karlström
Proceedings 15th Nordic Process Control Workshop, p. 36-37
Conference contribution
2008

Refining models for control purposes

Anders Karlström, Karin Eriksson, David Sikter et al
Nordic Pulp and Paper Research Journal. Vol. 23 (1), p. 129-138
Journal article
2007

Using the refining zone temperature profile for quality control

D. Sikter, Anders Karlström, P. Engstrand et al
International Mechanical Pulping Conference 2007, TAPPI; Minneapolis, MN; United States; 6 May 2007 through 9 May 2007. Vol. 2, p. 894-902
Paper in proceedings
2006

Direction-dependent system modeling approaches exemplified through an electronic nose system

Fredrik Rosenqvist, A. H. Tan, K. Godfrey et al
IEEE Transactions on Control Systems Technology. Vol. 14 (3), p. 526-531
Journal article
2006

EUkraft - En samlad västsvensk EU-satsning

Stig Franzén, Anders Karlström
Report
2005

Developments in soft sensors for measurement of refining parameters

Anders Karlström, Daniel Berg, Karin Eriksson
8th PIRA international refining conference
Paper in proceedings
2005

Realisation and estimation of piecewise-linear output-error models

Fredrik Rosenqvist, Anders Karlström
Automatica. Vol. 41 (3), p. 545-551
Journal article
2005

Dynamic pressure measurements in full-scale thermomechanical pulp refiners

Daniel Berg, Anders Karlström
International Mechanical pulping conference
Paper in proceedings
2005

Energy efficient modeling in Thermomechanical pulp mills

Daniel Berg, Anders Karlström
International Mechanical pulping conference
Paper in proceedings
2005

Internal interconnections impact on process operability

Karin Eriksson, Anders Karlström
Proceedings of the International Mechanical Pulping Conference, 7-9 June 2005, Oslo, Norway, p. 284-289
Paper in proceedings
2004

Approach of 3x3 Decoupling and Control of Thermomechanical Pulp Refiners

Daniel Berg, Anders Karlström
IEEE IAS, Advanced Process Control Workshop, Vancouver, Canada
Paper in proceedings
2004

PiEcewise-Linear Output-Error Methods for Parameter Estimation in Direction-Dependent Processes

Fredrik Rosenqvist, Anders Karlström
Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics). Vol. 2993, p. 493-507
Paper in proceedings
2003

Controllability of direction dependent processes

Fredrik Rosenqvist, Anders Karlström
42nd IEEE Conference on Decision and Control, 9-12 Dec. 2003.. Vol. 4
Paper in proceedings
2003

Piecewise linear output-error models

Fredrik Rosenqvist, Anders Karlström
IFAC Symposium on System Identification, Rotterdam, the Netherlands
Paper in proceedings
2003

Deterministic consistency estimation in refining processes

Daniel Berg, Anders Karlström, M. Gustavsson
Int. Mechanical Pulping Conference, Quebec City, Canada, p. 361-366
Paper in proceedings
2002

Internal interconnections in TMP refining

Fredrik Rosenqvist, Daniel Berg, Anders Karlström et al
IEEE Conference on Control Applications, Glasgow, UK
Paper in proceedings
2002

The impact of different input variables in a twin-disc refiner line

Karin Eriksson, Anders Karlström, Fredrik Rosenqvist et al
Control Systems, Stockholm, Sweden
Paper in proceedings
2002

Parameter estimation in processes with direction-dependent dynamics

Fredrik Rosenqvist, Anders Karlström, Karin Eriksson
International Conference on Identification in Engineering Systems, p. 68-77
Paper in proceedings
2001

Modelling a thermomechanical wood-chip refiner

Fredrik Rosenqvist, Karin Eriksson, Anders Karlström
IASTED Conference. Modelling, Identification and Control, Innsbruck, Austria. Vol. II, p. 763 - 768
Paper in proceedings
2001

Time-variant modelling of TMP refining

Fredrik Rosenqvist, Anders Karlström, Karin Eriksson
IEEE IAS Workshop on Advanced Process Control, p. 37-42
Paper in proceedings
2000

Compensation Method for Attenuated Planar Laser Images of Optically Dense Sprays

Rafeef Abu-Gharbieh, J.L. Persson, M. Försth et al
Journal of Applied Optics. Vol. 39 (8), p. 1260-1267
Journal article
1999

Transient identification using a fractional derivative model

Dag Lundström, Anders Karlström
European Control Conference, ECC 1999 - Conference Proceedings, p. 2865 - 2868
Paper in proceedings
1999

Investigation on Methanol Engine with DME Fumigation

Savo Gjirja, Erik Olsson, Anders Karlström
32nd ISATA International Symposium on Automotive Technology and Automation, 14th-18th June 1999 - Vienna-Austria. Vol. 32 (99CPE029), p. 83-91
Journal article
1998

Ether Fumigation, a New Alternative for the Neat Ethanol Diesel Engine

Savo Gjirja, Erik Olsson, Anders Karlström
31st ISATA, International Symposium on Automotive Technology and Automation, 2nd-5th June 1998 Duseldorf, Germany. Vol. 31 (98EL008), p. 301-309
Journal article
1998

Considerations on Engine Design and Fuelling Technique Effects on Qualitative Combustion in Alcohol Diesel Engines.

Savo Gjirja, Erik Olsson, Anders Karlström
SAE, Society of Automotive Engineers, Inc. 400 Commonwealth Drive Warrendale, PA 15096-0001 USA, October 1998 (982530), p. 175-187
Paper in proceedings
1997

Using multi-rate filter banks to detect internal combustion engine knock

Klaas Burgdorf, Anders Karlström
SAE Technical Papers, p. 971670-
Journal article
1997

Dynamic simulation of a thermomechanical pulp refiner

Alexander Horch, Alf J. lsaksson, Bruce J. Allison et al
Nordic Pulp and Paper Research Journal. Vol. 12 (4), p. 270-275
Journal article
1995

The impact of chemical addition on refining parameters

P. Engstrand, Anders Karlström, L. Nilsson
1995 International Mechanical Pulping Conference, Ottawa, Canada. Jun. 12-15, 1995, p. 281-286
Paper in proceedings
1993

Modelling of wood-chip refining processes

Anders Karlström, M. Koebe
Nordic Pulp and Paper Research Journal. Vol. 8 (4), p. 384-388
Journal article
1992

Control System Design in Distillation Processes and its Dependence of the Original Process Design

Anders Karlström, Claes Breitholtz, Inge Jovik et al
Proc of the 1st IFAC Workshop on Interactions between Process Design and Process Control, London, UK
Paper in proceedings
1992

Experimental Validation of a Packed Bed Distillation Model

Anders Karlström, Claes Breitholtz
Chemical Engineering Technology. Vol. 15 (6)
Journal article
1992

Heat, Mass and Momentum Transfer in Packed Bed Distillation Columns

Anders Karlström, Claes Breitholtz, Mats Molander
Chemical Engineering Technology. Vol. 15 (1), p. 1-10
Journal article
1991

Controller Design in Packed Bed Distillation Processes

Inge Jovik, Anders Karlström
Proc of IFAC Symposium on Advanced Control of Chemical Processes, Toulouse, France
Paper in proceedings
1991

Modelling of packed bed distillation column

Anders Karlström
Doctoral thesis
1991

An Improved SRK-Equation for the Estimation of Concentrations by Inferential Measurements

Anders Karlström
Chemical Engineering Technology. Vol. 14, p. 20-28
Journal article
1991

Model Reduction by Means of Physical Considerations in a Packed Bed Distillation Column

Mats Molander, Anders Karlström
Proc of the 1st European Control Conference, Grenoble, France
Paper in proceedings
1991

Model Order Reduction for Packed Bed Distillation Columns

Anders Karlström, Claes Breitholtz
Proc of the 1st European Control Conference, Grenoble, France
Paper in proceedings

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