https://www.mdu.se/

mdu.sePublikationer
Ändra sökning
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Dielectric-based method for determining moisture content and bulk density of peanut-hull pellets
Mälardalens högskola, Akademin för hållbar samhälls- och teknikutveckling. (MERO)
2010 (Engelska)Ingår i: 44th Annual Microwave Symposium Proceedings, 2010, s. 190-196Konferensbidrag, Publicerat paper (Refereegranskat)
Ort, förlag, år, upplaga, sidor
2010. s. 190-196
Nationell ämneskategori
Elektroteknik och elektronik
Identifikatorer
URN: urn:nbn:se:mdh:diva-10414OAI: oai:DiVA.org:mdh-10414DiVA, id: diva2:356708
Konferens
IMPI2010, International Microwave Power Symposium Conference, Denver, July 14-16, 2010
Tillgänglig från: 2010-10-13 Skapad: 2010-10-13 Senast uppdaterad: 2017-04-05Bibliografiskt granskad
Ingår i avhandling
1. The dielectric properties of solid biofuels
Öppna denna publikation i ny flik eller fönster >>The dielectric properties of solid biofuels
2010 (Engelska)Doktorsavhandling, sammanläggning (Övrigt vetenskapligt)
Abstract [en]

The use of bioenergy has been increasing due to efforts in fossil fuels replacement. Modern bioenergy technologies aim for high efficiency and low pollution levels, which increases the need for methods for the on-line characterization of biofuels.

Dielectric methods have been identified as useful for the sensing of solid biofuels because they allow for rapid, nonhazardous, nondestructive, and bulk determination of material properties. The dielectric properties describe the interaction between the material and the electromagnetic waves. Dielectric properties are intrinsic of the materials and can therefore be used for the development of prediction models that can be applied regardless of the measurement technique. The study of the dielectric properties is also important as it improves the understanding of the dielectric behavior of the materials.

This thesis focuses on the dielectric properties of solid biofuels and their use in the characterization of these materials. The work presented includes the development of new methods permitting the determination of the dielectric properties of solid biofuels with large particle size (waveguide method), broadband measurement of the dielectric properties (coaxial-line probe), and the use of a previously developed method for the accurate determination of the dielectric properties (free-space method). The results includes the dielectric properties of solid biofuels and their dependence on parameters such as frequency, moisture, density, and temperature.

This thesis also presents semi-theoretical models for the determination of moisture content, which obtained a RMSEP of 4% for moisture contents between 34 and 67%, and an empirical model that resulted in a RMSEC of 0.3% for moisture contents between 4 and 13%.

Finally, this thesis includes measurements of the influence of salt content on the dielectric properties and a discussion of its use for estimation of the ash content of solid biofuels.



Ort, förlag, år, upplaga, sidor
Västerås: Mälardalen University, 2010. s. 64
Serie
Mälardalen University Press Dissertations, ISSN 1651-4238 ; 90
Nyckelord
dielectric properties, solid biofuels, moisture content determination
Forskningsämne
energi- och miljöteknik
Identifikatorer
urn:nbn:se:mdh:diva-10500 (URN)978-91-86135-94-2 (ISBN)
Disputation
2010-11-26, Lambda, Mälardalens högskola, Västerås, 10:00 (Engelska)
Opponent
Handledare
Tillgänglig från: 2010-11-11 Skapad: 2010-10-22 Senast uppdaterad: 2010-11-11Bibliografiskt granskad

Open Access i DiVA

Fulltext saknas i DiVA

Sök vidare i DiVA

Av författaren/redaktören
Paz, Ana
Av organisationen
Akademin för hållbar samhälls- och teknikutveckling
Elektroteknik och elektronik

Sök vidare utanför DiVA

GoogleGoogle Scholar

urn-nbn

Altmetricpoäng

urn-nbn
Totalt: 66 träffar
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf