Birgitta Engberg

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Bakgrund

Ph D, Research Engineer

My professional interests concern education and research that has a close connection to technical applications. My area of research is within Mechanical Fibre Technology and the challenges we have there - reducing electric energy consumption in refining drastically and finding new products based on mechanical pulps.

Forskningsområden

High yield pulping technology
Wood mechanics

Publikationer

Artiklar i tidskrifter

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, ss. 225-229.

Moilanen, C. S. , Saarenrinne, P. , Engberg, B. A. & Björkqvist, T. (2015). Image-based stress and strain measurement of wood in the split-Hopkinson pressure bar. Measurement science and technology, vol. 26: 8

Björkqvist, T. , Engberg, B. A. , Salminen, L. I. & Salmi, A. (2012). Towards optimal defibration : Energy reduction by fatiguing pre-treatment. Nordic Pulp & Paper Research Journal, vol. 27: 2, ss. 168-172.

Salmi, A. , Salminen, L. I. , Engberg, B. A. , Bjorkqvist, T. & Haeggstrom, E. (2012). Repetitive impact loading causes local plastic deformation in wood. Journal of Applied Physics, vol. 111: 2, ss. Art. no. 024901

Svensson, B. A. , Nyström, S. K. , Gradin, P. A. & Höglund, H. (2009). Frictional testing of wood : Initial studies with a new device. Tribology International, vol. 42: 1, ss. 190-196.

Holmgren, S. , Svensson, B. A. , Gradin, P. A. & Lundberg, B. (2008). An Encapsulated Split Hopkinson Pressure Bar for Testing of Wood at Elevated Strain Rate, Temperature and Pressure. Experimental techniques (Westport, Conn.), vol. 32: 5, ss. 44-50.

Svensson, B. , Vesterlind, E. & Höglund, H. (2007). Frictional properties of native and chemically modified birch wood. Nordic Pulp & Paper Research Journal, vol. 22: 3, ss. 325-330.

Svensson, B. (2006). Friktionens inverkan på energiförbrukning vid mekanisk massaframställning. Nordisk Papper & Massa, vol. 7: 6, ss. 20-22.

Svensson, B. , Rundlöf, M. & Höglund, H. (2006). Sliding Friction Between Wood and Steel in a Saturated Steam Environment. Journal of Pulp and Paper Science, vol. 32: 1, ss. 38-43.

Moilanen, C. S. , Björkqvist, T. , Engberg, B. A. , Salminen, L. I. & Saarenrinne, P. (). High strain rate radial compression of Norway spruce earlywood and latewood. Cellulose (London),

Doktorsavhandlingar, sammanläggningar

Svensson, B. (2007). Frictional studies and high strain rate testing of wood under refining conditions. Diss. (Sammanläggning) Sundsvall : Mittuniversitetet, 2007 (Mid Sweden University doctoral thesis : 31)

Konferensbidrag

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

Engberg, B. , Logenius, L. & Engstrand, P. (2014). Mechanical properties of sulphonated wood in relation to wing refiner properties. I International Mechanical Pulping Conference, IMPC 2014. Espoo :

Moilanen, C. , Engberg, B. A. , Björkqvist, T. , Salminen, L. & Saarenrinne, P. (2014). Local compression behaviour of pre-fatigured and chemically pre-treated wood at high strain rate and high temperature. .

Nelsson, E. , Sandberg, C. , Svensson-Rundlöf, E. , Muhic, D. , Rohdén, L. , A. Engberg, B. & Engstrand, P. (2014). Improved energy efficiency in thermomechanical pulping through co-optimixation of intensity by segment design and wood softening by sulfonation. I International mechanical pulping conference IMPC 2014.

Moilanen, C. S. , Saarenrinne, P. , Engberg, B. & Björkqvist, T. (2013). Image Based local strain measurement of wood. I Conference Proceedings of the Society for Experimental Mechanics Series.

Logenius, L. , Engberg, B. A. , Nelsson, E. & Engstrand, P. (2013). Mechanical testing methods for evaluation of the mechanical properties of sulphonated wood. .

Logenius, L. , Engberg, B. A. , Fjellström, H. & Engstrand, P. (2013). Mechanical Properties of Sulphonated Spruce Wood. . Åre, Sweden :

Salminen, L. , Salmi, A. , Engberg, B. A. , Björkqvist, T. , Haeggström, E. & Lucander, M. (2011). Cyclic loading and fatigue of wood. I Progress in Paper Physics Seminar2011 : Conference Proceedings.. S. 243--245.

Salmi, A. , Salminen, L. I. , Montonen, R. , Engberg, B. A. , Björkqvist, T. , Haeggström, E. & Lucander, M. (2011). Cyclic impacting of wood results in localized fatigue. I Proceedings of International Mechanical Pulping Conference 2011 (Xi'an, China 2011).

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

Engberg, B. A. , Salminen, L. I. , Salmi, A. & Björkqvist, T. (2009). On the importance of fatigue for the rheological properties of wood. I Proceedings - 2009 International Mechanical Pulping Conference, IMPC 2009.. S. 239--244.

Saari, V. , Björkqvist, T. & Engberg, B. A. (2009). Strain distribution in annual rings under compression by high speed photography. I Proceedings - 2009 International Mechanical Pulping Conference, IMPC 2009.. S. 245--251.

Svensson, B. A. , Holmgren, S. , Gradin, P. A. & Höglund, H. (2007). High Strain Rate Compression and Sliding Friction of Wood under Refining Conditions. I International Mechanical Pulping Conference, Minneapolis, USA..

Svensson, B. , Rundlöf, M. & Höglund, H. (2005). Sliding friction between wood and steel in a saturated steam environment. I International Mechanical Pulping Conference: IMPC 2005 : Oslo, Norway, 7-9 June 2005.. S. 31--37.

Svensson, B. (2004). Tribology under refining conditions. I Proceedings of the 4th Fundamental Mechanical Pulp Seminar : June 7-8, 2004, Stocholm, Sweden.

Svensson, B. , Nyström, S. K. , Gradin, P. , Bergfors, E. & Höglund, H. (2003). Tribology under refining conditions : initial studies sevo motor. I 2003 International Mechanical Pulping Conference.. S. 233--237.