mdh.sePublications
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
A new method for bulk measurement of water content in woody biomass
Mälardalen University, School of Sustainable Development of Society and Technology. (PRO)
Mälardalen University, School of Sustainable Development of Society and Technology.ORCID iD: 0000-0002-3485-5440
Mälardalen University, School of Sustainable Development of Society and Technology.ORCID iD: 0000-0002-7233-6916
2008 (English)In: 3rd Conference on environmental compatible forest products, 2008Conference paper, Published paper (Refereed)
Place, publisher, year, edition, pages
2008.
Research subject
Energy- and Environmental Engineering
Identifiers
URN: urn:nbn:se:mdh:diva-962OAI: oai:DiVA.org:mdh-962DiVA, id: diva2:166
Available from: 2008-09-04 Created: 2008-09-05 Last updated: 2013-12-04Bibliographically approved
In thesis
1. Water content measurement in woody biomass: using dielectric constant at radio frequencies
Open this publication in new window or tab >>Water content measurement in woody biomass: using dielectric constant at radio frequencies
2008 (English)Licentiate thesis, comprehensive summary (Other academic)
Abstract [en]

The will for replacement of fossil fuels increased the use of woody biomass as fuel in heating and power plants. An important parameter for the use woody biomass as fuel is the water content of biomass as it influences the heating value and thereby the combustion control and pricing. Currently, water content is determined using the gravimetric method by drying samples  in an oven. This method is neither fast nor representative, as the water content can vary largely in different parts of the container which raised the need to develop sensors that are able to measure water content of biomass on-line and in a representative way.This thesis presents results from studies on the measurement of water content of woody biomass with radio frequency. Included are the study on the influence of temperature in the measurements, the use of dielectric mixing models to explain the dielectric behavior of woody biomass and the application of the measurement principle to full-scale.

It was found that varying temperature between 1 and 62 °C did not influence the prediction of water content in biomass. It was possible to explain the behavior of the dielectric constant of woody biomass with a model with physical basis using empirically obtained parameters. Application of the principle to full-scale had positive results but larger prediction error than laboratory-scale measurements.

Publisher
p. 57
Series
Mälardalen University Press Licentiate Theses, ISSN 1651-9256 ; 90
Research subject
Energi- och miljöteknik
Identifiers
urn:nbn:se:mdh:diva-963 (URN)978-91-86135-01-0 (ISBN)
Presentation
Delta, Mälardalens högskola, Västerås (English)
Opponent
Supervisors
Available from: 2009-02-26 Created: 2008-09-05 Last updated: 2009-02-26Bibliographically approved

Open Access in DiVA

No full text in DiVA

Authority records BETA

Thorin, EvaDahlquist, Erik

Search in DiVA

By author/editor
Paz, AnaThorin, EvaDahlquist, Erik
By organisation
School of Sustainable Development of Society and Technology

Search outside of DiVA

GoogleGoogle Scholar

urn-nbn

Altmetric score

urn-nbn
Total: 206 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf