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Online moisture measurement of bio fuel at a paper mill employing a microwave resonator

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en
dc.contributor.author Olkkonen, Martta Kaisa
dc.date.accessioned 2018-12-21T10:29:15Z
dc.date.available 2018-12-21T10:29:15Z
dc.date.issued 2018-11-09
dc.identifier.citation Olkkonen , M K 2018 , ' Online moisture measurement of bio fuel at a paper mill employing a microwave resonator ' , Sensors (Switzerland) , vol. 18 , no. 11 , 3844 . https://doi.org/10.3390/s18113844 en
dc.identifier.issn 1424-8220
dc.identifier.other PURE UUID: 29534acf-ecf7-49c9-8f6a-2f800578114e
dc.identifier.other PURE ITEMURL: https://research.aalto.fi/en/publications/29534acf-ecf7-49c9-8f6a-2f800578114e
dc.identifier.other PURE LINK: http://www.scopus.com/inward/record.url?scp=85056555719&partnerID=8YFLogxK
dc.identifier.other PURE FILEURL: https://research.aalto.fi/files/30441447/ELEC_Olkkonen_Online_Moisture_Measurement_Sensors_18_11_3844.pdf
dc.identifier.uri https://aaltodoc.aalto.fi/handle/123456789/35631
dc.description.abstract This paper investigates online moisture measurement of biofuel employing a strip line cavity resonator at approximately 366 MHz, attached above and below the conveyor belt. An existing sensor design is modified for the factory assembly, and the correct operation has been tested prior to this paper with a small number of measurement points and collected reference samples (n = 67). The purpose is now to concentrate on the accuracy of the measurement and increase the number of measurement points (n = 367). The measurements were made in 5 different lots, and the thickness and moisture properties of the biomaterial mat were varied between minimum and maximum levels by adjusting the settings of the belt filter press that presses pulp slush into a mat. In order to further reduce inaccuracy, at the maximum one standard deviation was allowed from the average height of the equivalent water layer for each dataset, and consequently the number of samples was reduced to 235. A linear fit and a parabola fit were determined for thickness of the equivalent water layer vs. the relative resonant frequency shift: R2 = 0.82 and R2 = 0.78. en
dc.format.extent 11
dc.format.mimetype application/pdf
dc.language.iso en en
dc.relation.ispartofseries Sensors (Switzerland) en
dc.relation.ispartofseries Volume 18, issue 11 en
dc.rights openAccess en
dc.title Online moisture measurement of bio fuel at a paper mill employing a microwave resonator en
dc.type A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä fi
dc.description.version Peer reviewed en
dc.contributor.department Department of Electrical Engineering and Automation
dc.subject.keyword Bio fuel
dc.subject.keyword Microwave resonator
dc.subject.keyword Moisture measurement
dc.subject.keyword Paper mill
dc.identifier.urn URN:NBN:fi:aalto-201812216639
dc.identifier.doi 10.3390/s18113844
dc.type.version publishedVersion

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