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A portable device for methane measurement using a low-cost semiconductor sensor: development, calibration and environmental applications

2021Journal article Open access
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dc.contributor.authorFurst, Leonardo
dc.contributor.authorFeliciano, Manuel
dc.contributor.authorFrare, Laercio
dc.contributor.authorIgrejas, Getúlio
dc.date.accessioned2021-11-15T09:57:25Z
dc.date.available2021-11-15T09:57:25Z
dc.date.issued2021
dc.description.abstractMethane is a major greenhouse gas and a precursor of tropospheric ozone, and most of its sources are linked to anthropogenic activities. The sources of methane are well known and its monitoring generally involves the use of expensive gas analyzers with high operating costs. Many studies have investigated the use of low-cost gas sensors as an alternative for measuring methane concentrations; however, it is still an area that needs further development to ensure reliable measurements. In this work a low-cost platform for measuring methane within a low concentration range was developed and used in two distinct environments to continuously assess and improve its performance. The methane sensor was the Figaro TGS2600, a metal oxide semiconductor (MOS) based on tin dioxide (SnO2). In a first stage, the monitoring platform was applied in a small ruminant barn after undergoing a multi-point calibration. In a second stage, the system was used in a wastewater treatment plant together with a multi-gas analyzer (Gasera One Pulse). The calibration of low-cost sensor was based on the relation of the readings of the two devices. Temperature and relative humidity were also measured to perform corrections to minimize the effects of these variables on the sensor signal and an active ventilation system was used to improve the performance of the sensor. The system proved to be able to measure low methane concentrations following reliable spatial and temporal patterns in both places. A very similar behavior between both measuring systems was also well noticeable at WWTP. In general, the low-cost system presented good performance under several environmental conditions, showing itself to be a good alternative, at least as a screening monitoring system.pt_PT
dc.description.sponsorshipThe authors are grateful to the Foundation for Science and Technology (FCT, Portugal) and FEDER under Programme PT2020 for financial support to CIMO (UIDB/00690/2020) and CeDRI (UIDB/5757/2020).pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationFurst, Leonardo; Feliciano, Manuel; Frare, Laercio; Igrejas, Getúlio (2021). A portable device for methane measurement using a low-cost semiconductor sensor: development, calibration and environmental applications. Sensors. ISSN 1424-8220. 21:22 p. 1-15pt_PT
dc.identifier.doi10.3390/s21227456pt_PT
dc.identifier.issn1424-8220
dc.identifier.urihttp://hdl.handle.net/10198/24193
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.relationUIDB/5757/2020pt_PT
dc.relationMountain Research Center
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectGas sensorpt_PT
dc.subjectSemiconductorpt_PT
dc.subjectGreenhouse gasespt_PT
dc.subjectMethanept_PT
dc.subjectGas monitoringpt_PT
dc.titleA portable device for methane measurement using a low-cost semiconductor sensor: development, calibration and environmental applicationspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleMountain Research Center
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F00690%2F2020/PT
oaire.citation.issue22pt_PT
oaire.citation.startPage7456pt_PT
oaire.citation.titleSensorspt_PT
oaire.citation.volume21pt_PT
oaire.fundingStream6817 - DCRRNI ID
person.familyNameFurst
person.familyNameFeliciano
person.familyNameIgrejas
person.givenNameLeonardo
person.givenNameManuel
person.givenNameGetúlio
person.identifier.ciencia-idA41D-C8EF-8809
person.identifier.ciencia-id2D11-7230-702B
person.identifier.orcid0000-0002-0313-4915
person.identifier.orcid0000-0002-3147-4511
person.identifier.orcid0000-0002-6820-8858
person.identifier.ridM-8571-2013
person.identifier.scopus-author-id6603358480
person.identifier.scopus-author-id47761255900
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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