Anders Karlström

Data-Driven Soft Sensors in Pulp Refining Processes Using Artificial Neural Networks

2023

Data-Driven Soft Sensors in Refining Processes – Pulp Property Estimation Using ARX-Models

2021

The effect of process design on refiner pulp quality control performance

2021

On the modeling of pulp properties in CTMP processes

2020

Modeling of tensile index using uncertain data sets

2019

Raw data for Tensile index estimations from a CD72-refiner

2019

On the modeling of tensile index from larger data sets

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

2018

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

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

2018

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

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

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

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

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

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

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

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

Proper pulp sampling pre-requisite to any pulp property assessment

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

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

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

Fiber energy efficiency Part I: Extended entropy model

On techniques for measuring fiber distribution in refining zones

Can we increase the proportion of electrical energy into fibre development in existing HC-refiners?

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

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

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

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

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

Internal interconnections impact on control performance in a thermomechanical pulping process

On energy efficiency in chip refining

2013

Pre-study on the establishment of a research collaboration between industrial energy systems and process control at Chalmers

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

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

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

A note on decoupling

Multi-rate optimal control of the TMP-refining processes

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

Refining models for control purposes

Using the refining zone temperature profile for quality control

EUkraft - En samlad västsvensk EU-satsning

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

Dynamic pressure measurements in full-scale thermomechanical pulp refiners

Internal interconnections impact on process operability

Realisation and estimation of piecewise-linear output-error models

Energy efficient modeling in Thermomechanical pulp mills

Developments in soft sensors for measurement of refining parameters

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

Approach of 3x3 Decoupling and Control of Thermomechanical Pulp Refiners

Deterministic consistency estimation in refining processes

Controllability of direction dependent processes

Piecewise linear output-error models

Internal interconnections in TMP refining

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

Parameter estimation in processes with direction-dependent dynamics

Modelling a thermomechanical wood-chip refiner

Time-variant modelling of TMP refining

Compensation Method for Attenuated Planar Laser Images of Optically Dense Sprays

Investigation on Methanol Engine with DME Fumigation

Transient identification using a fractional derivative model

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

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

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

Dynamic simulation of a thermomechanical pulp refiner

The impact of chemical addition on refining parameters

Modelling of wood-chip refining processes

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

Experimental Validation of a Packed Bed Distillation Model

Heat, Mass and Momentum Transfer in Packed Bed Distillation Columns

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

Modelling of packed bed distillation column

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

Controller Design in Packed Bed Distillation Processes

Model Order Reduction for Packed Bed Distillation Columns