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dc.contributor.authorCharris Stand, Daniela María
dc.contributor.authorGómez Cerón, Diego Fernando
dc.contributor.authorRincón Ortega, Anggie Zuleidy
dc.contributor.authorCarmona García, Mauricio Yilmer
dc.contributor.authorPardo González, Mauricio
dc.coverage.spatialColombiaen_US
dc.date.accessioned2025-10-28T13:05:57Z
dc.date.available2025-10-28T13:05:57Z
dc.date.issued2020-06-01
dc.identifier.issn1996-1073en_US
dc.identifier.urihttps://repositorioinstitucional.ufpso.edu.co/xmlui/handle/20.500.14167/5958
dc.description.abstractEste artículo presenta un sensor IoT energéticamente autónomo alimentado mediante recolección termoeléctrica. El funcionamiento de la recolección térmica se basa en mantener un gradiente de temperatura de al menos 26,31 K entre los lados del generador termoeléctrico. Mientras que el lado caliente emplea una placa metálica, el lado frío está fijado con un material de cambio de fase que actúa como un disipador pasivo eficaz. El gradiente de temperatura deseado permite alcanzar eficiencias de conversión de energía de aproximadamente el 26,43 %, sin las reducciones de eficiencia asociadas al calentamiento y la suciedad. Este trabajo presenta la caracterización de un generador termoeléctrico comercial de bajo costo que permite estimar la producción de al menos 407,3 mW, correspondientes a 2,44 Wh de energía disponible considerando horas de funcionamiento específicas, determinadas estadísticamente para una ubicación geográfica determinada. Posteriormente, la producción de energía se verifica experimentalmente mediante la construcción de un sensor IoT para exteriores alimentado por un generador termoeléctrico refrigerado pasivamente. El prototipo contiene un microcontrolador de bajo consumo, sensores ambientales y una radio de bajo consumo para reportar variables ambientales seleccionadas a un nodo central. Este trabajo demuestra que el mecanismo de suministro propuesto proporciona suficiente energía para un funcionamiento continuo incluso en periodos sin energía solar mediante una batería de Li-Po integrada. Esta batería puede recargarse cuando la radiación solar está disponible sin comprometer el funcionamiento del sensor.en_US
dc.language.isoen_USen_US
dc.relationhttps://www.mdpi.com/1996-1073/13/11/2782en_US
dc.titleUn sistema de aprovechamiento de energía termoeléctrica con refrigeración pasiva para sensores IoT de exterioren_US
dc.title.translatedA thermoelectric energy harvesting scheme with passive cooling for outdoor IoT sensorsen_US
dc.contributor.cvlacDaniela María Charris Stand [0000160231]en_US
dc.contributor.cvlacDiego Fernando Gómez Cerón [0000594490]en_US
dc.contributor.cvlacAnggie Zuleidy Rincón Ortega [0000058705]en_US
dc.contributor.googlescholarDiego Fernando Gómez Cerón [5plrOrMAAAAJ]en_US
dc.contributor.googlescholarMauricio Yilmer Carmona García [cWD6Gv8AAAAJ]en_US
dc.contributor.orcidDaniela María Charris Stand [0000-0002-6055-3753]en_US
dc.contributor.orcidDiego Fernando Gómez Cerón [0000-0002-6317-6818]en_US
dc.contributor.orcidAnggie Zuleidy Rincón Ortega [0000-0002-7096-939X]en_US
dc.contributor.orcidMauricio Yilmer Carmona García [0000-0002-2581-5076]en_US
dc.contributor.orcidMauricio Pardo González [0000-0002-7608-3290]en_US
dc.contributor.researchgateDaniela María Charris Stand [Daniela-Charris-2]en_US
dc.contributor.researchgateDiego Fernando Gómez Cerón [Diego-Gomez-30]en_US
dc.contributor.researchgateAnggie Zuleidy Rincón Ortega [Anggie-Rincon]en_US
dc.description.abstractenglishThis paper presents an energetically autonomous IoT sensor powered via thermoelectric harvesting. The operation of thermal harvesting is based on maintaining a temperature gradient of at least 26.31 K between the thermoelectric-generator sides. While the hot side employs a metal plate, the cold side is attached with a phase-change material acting as an effective passive dissipative material. The desired temperature gradient allows claiming power conversion efficiencies of about 26.43%, without efficiency reductions associated with heating and soiling. This work presents the characterization of a low-cost off-the-shelf thermoelectric generator that allows estimating the production of at least 407.3mW corresponding to 2.44Wh of available energy considering specific operation hours—determined statistically for a given geographic location. Then, the energy production is experimentally verified with the construction of an outdoor IoT sensor powered by a passively-cooled thermoelectric generator. The prototype contains a low-power microcontroller, environmental sensors, and a low-power radio to report selected environmental variables to a central node. This work shows that the proposed supply mechanism provides sufficient energy for continuous operation even during times with no solar resource through an on-board Li-Po battery. Such a battery can be recharged once the solar radiation is available without compromising sensor operation.en_US
dc.subject.proposalInternet de las cosasen_US
dc.subject.proposalSensor exterioren_US
dc.subject.proposalRefrigeración pasivaen_US
dc.subject.proposalMaterial de cambio de faseen_US
dc.subject.proposalCaptación de energía termoeléctricaen_US
dc.subject.proposalGenerador termoeléctricoen_US
dc.subject.keywordsInternet of thingsen_US
dc.subject.keywordsOutdoor sensoren_US
dc.subject.keywordsPassive coolingen_US
dc.subject.keywordsPhase change materialen_US
dc.subject.keywordsThermoelectric energy harvestingen_US
dc.subject.keywordsThermoelectric generatoren_US
dc.publisher.facultyFacultad ingenieríasen_US
dc.type.redcolhttp://purl.org/redcol/resource_type/ARTen_US
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dc.identifier.DOI10.3390/en13112782en_US


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