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Microwave dielectric method for the rapid, non-destructive determination of bulk density and moisture content of peanut hull pellets
Agricultural Research Service, U.S. Department of Agriculture.
Mälardalen University, School of Business, Society and Engineering.
Agricultural Research Service, U.S. Department of Agriculture.
2013 (English)In: Biosystems Engineering, ISSN 1537-5110, E-ISSN 1537-5129, Vol. 115, no 3, 332-338 p.Article in journal (Refereed) Published
Abstract [en]

A rapid dielectric-based method was used to non-destructively determine the moisture content and bulk density of peanut-hull pellets from free-space measurement of their dielectric properties at microwave frequencies. For moisture content determination, a permittivity-based function was used that permits moisture prediction independent of bulk density from measurement of the dielectric properties at microwave frequencies. For bulk density determination, an analytical expression was obtained from a representation of the dielectric properties in the complex plane. Results of moisture and density prediction from measurement of the dielectric properties are shown at 5, 10, and 15GHz at 22°C. •Dielectric properties of peanut hull pellets were measured in free space between 5GHz and 15GHz at 22°C. © 2013.

Place, publisher, year, edition, pages
2013. Vol. 115, no 3, 332-338 p.
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:mdh:diva-19148DOI: 10.1016/j.biosystemseng.2013.04.003ISI: 000321080600011Scopus ID: 2-s2.0-84878355440OAI: oai:DiVA.org:mdh-19148DiVA: diva2:626580
Available from: 2013-06-10 Created: 2013-06-10 Last updated: 2014-06-13Bibliographically approved

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