Jan-Erik Berg

Publications

Articles in journals
Conference papers
Doctoral theses, comprehensive summaries
Licentiate theses, monographs

Articles in journals

Niskanen, K. , Berg, J. , Liubytska, K. & Sandberg, C. (2025). Fragmentation of fibrous particles in LC refining. Cellulose, vol. 32: 8, pp. 4705-4723.    

Lindström, S. B. , Amjad, R. , Gåhlin, E. , Andersson, L. , Kaarto, M. , Liubytska, K. , Persson, J. , Berg, J. & et al. (2024). Pulp Particle Classification Based on Optical Fiber Analysis and Machine Learning Techniques. Fibers, vol. 12: 1    

Fallahjoybari, N. , Engberg, B. , Persson, J. , Berg, J. & Lundstrom, T. S. (2023). An investigation of forces on a representative surface in a pulp flow through rotating and non-rotating grooves. Journal of the Brazilian Society of Mechanical Sciences and Engineering, vol. 45: 5  

Berg, J. , Persson, E. , Hellstadius, B. , Edlund, H. , Granfeldt, T. , Lundfors, M. & Engstrand, P. (2022). Refining gentleness - a key to bulky CTMP. Nordic Pulp & Paper Research Journal, vol. 37: 2, pp. 349-355.  

Fallahjoybari, N. , Engberg, B. , Persson, J. & Berg, J. (2021). Investigation of pulp flow helicity in rotating and non-rotating grooves. Proceedings of the Institution of mechanical engineers. Part E, journal of process mechanical engineering, vol. 235: 6, pp. 2045-2058.  

Berg, J. , Hellstadius, B. , Lundfors, M. & Engstrand, P. (2021). Low-consistency refining of CTMP targeting high strength and bulk : effect of filling pattern and trial scale. Nordic Pulp & Paper Research Journal, vol. 36: 1, pp. 33-41.  

Joelsson, T. , Svedberg, A. , Norgren, S. , Pettersson, G. , Berg, J. , Garcia-Lindgren, C. & Engstrand, P. (2021). Unique steel belt press technology for high strength papers from high yield pulp. SN Applied Sciences, vol. 3: 5    

Sandberg, C. , Berg, J. & Engstrand, P. (2019). Low Consistency Refining Combined with Screen Fractionation : Reduction of Mechanical Pulping Process Complexity. BioResources, vol. 14: 1, pp. 882-894.    

Sandberg, C. , Nelsson, E. , Engberg, B. A. , Berg, J. & Engstrand, P. (2018). Effects of chip pretreatment and feeding segments on specific energy and pulp quality in TMP production. Nordic Pulp & Paper Research Journal, vol. 33: 3, pp. 448-459.  

Sandberg, C. , Berg, J. & Engstrand, P. (2017). Low consistency refining of mechanical pulp - system design. TAPPI Journal, vol. 16: 7, pp. 419-429.

Sandberg, C. , Berg, J. & Engstrand, P. (2017). Mill evaluation of an intensified mechanical pulping process. Nordic Pulp & Paper Research Journal, vol. 32: 2, pp. 204-210.    

Sandberg, C. , Berg, J. & Engstrand, P. (2017). Process intensification in mechanical pulping. Nordic Pulp & Paper Research Journal, vol. 32: 4, pp. 615-622.    

Gradin, P. , Berg, J. & Nyström, S. (2016). Measuring Tangential Forces in a Pulp Refiner : A Novel Approach. Experimental techniques (Westport, Conn.), vol. 40: 2, pp. 789-793.  

Sandberg, C. & Berg, J. (2015). Effect of flow recirculation on pulp quality and energy efficiency in low consistency refining of mechanical pulp. Nordic Pulp & Paper Research Journal, vol. 30: 2, pp. 230-233.  

Berg, J. , Sandberg, C. , Engberg, B. A. & Engstrand, P. (2015). Low-consistency refining of mechanical pulp in the light of forces on fibres. Nordic Pulp & Paper Research Journal, vol. 30: 2, pp. 225-229.    

Berg, J. , Gulliksson, M. E. & Gradin, P. A. (2009). On the energy consumption for crack development in fibre wall in disc refining - A micromechanical approach. Holzforschung, vol. 63: 2, pp. 204-210.  

Berg, J. (2001). Effect of impact velocity on the fracture of wood as related to the mechanical pulping process. Wood Science and Technology, vol. 35: 4, pp. 343-351.  

Berg, J. & Gradin, P. A. (2000). Effect of Temperature on Fracture of Spruce in Compression, Investigated by Use of Acoustic Emission Monitoring. Journal of Pulp and Paper Science (JPPS), vol. 26: 8, pp. 294-299.

Berg, J. & Gradin, P. A. (1999). A Micromechanical Model of the Deterioration of a Wood Fibre. Journal of Pulp and Paper Science, vol. 25: 2, pp. 66-71.

Gradin, P. A. , Johansson, O. , Berg, J. & Nyström, S. (1999). Measurement of the Power Distribution in a Single Disc Refiner. Journal of Pulp and Paper Science, vol. 25: 11, pp. 384-387.

Hagen, N. & Berg, J. (1989). Filtration theory as applied to the dimensioning of flat band washers. TAPPI Journal, vol. 72: 6, pp. 93-96.

Conference papers

Fallahjoybari, N. , Engberg, B. A. , Persson, J. & Berg, J. (2022). CFD Simulation Of Pulp Flow In Rotating And Non-Rotating Grooves. In Proceedings of the International Mechanical Pulping Conference.. pp. 24-

Joelsson, T. , Svedberg, A. , Norgren, S. , Pettersson, G. , Berg, J. , Garcia-Lindgren, C. & Engstrand, P. (2021). Unique steel belt press technology for development of high strength papers from HYP. In TAPPICon Virtual 2021.. pp. 523--531.

Sandberg, C. , Berg, J. & Engstrand, P. (2018). LC refining combined with screen fractionation – Reduction of system complexity for mechanical pulping. In IMPC 2018. Trondheim, Norway :

Sandberg, C. , Engstrand, P. & Berg, J. (2016). System Aspects on Low Consistency Refining of Mechanical Pulp. In TAPPI 2016 International Mechanical Pulping Conference (IMPC).. pp. 485--495.

Berg, J. , Sandberg, C. , Engberg, B. & Engstrand, P. (2014). LC Refining Intensity In The Light Of Forces On Fibres. In International Mechanical Pulping Conference, IMPC 2014. Espoo :

Engberg, B. & Berg, J. (2011). A comparative study of models describing high consistency refining. In Proceedings of International Mechanical Pulping Conference.. pp. 96--100.

Gradin, P. , Berg, J. , Gulliksson, M. & Nyström, S. (2011). Measuring forces in a refiner plate gap. In Proceedings of International Mechanical Pulping Conference.. pp. 81--83.

Berg, J. & Gradin, P. A. (2009). Fibre wall crack development. In Proceedings - 2009 International Mechanical Pulping Conference, IMPC 2009. (SPCI meddelande). pp. 340--343.

Berg, J. & Gradin, P. (1995). Effect of Temperature on Fracture of Spruce in Compression Using Acoustic Emissions. In AECM-5, Fifth International Symposium on Acoustic Emission From Composite Material. Columbus, OH, USA : . pp. 139--148.

Doctoral theses

Berg, J. (2008). Wood and fibre mechanics related to the thermomechanical pulping process. Dis. (Comprehensive summary) Sundsvall : Mid Sweden University, 2008 (Mid Sweden University doctoral thesis : 63)  

Licentiate theses, monographs

Berg, J. (1996). Fracture Behaviour of Wood and Fibres as Related to the Mechanical Pulping Process. Lic. , 1996 (Licentiate thesis, Royal Institute of Technology : )