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Open AccessArticle

Plant Microbial Fuel Cells–Based Energy Harvester System for Self-powered IoT Applications

1
CONACYT, Deparment of Engineering, University of Quintana Roo, Chetumal Q. Roo 77019, Mexico
2
Deparment of Engineering, University of Quintana Roo, Chetumal Q. Roo 77019, Mexico
3
Faculty of Engineering, Autonomous University of Yucatán, Mérida Yucatán 97000, Mexico
*
Author to whom correspondence should be addressed.
Sensors 2019, 19(6), 1378; https://doi.org/10.3390/s19061378
Received: 12 February 2019 / Revised: 8 March 2019 / Accepted: 11 March 2019 / Published: 20 March 2019
(This article belongs to the Special Issue Energy Harvesting Sensor Systems)
The emergence of modern technologies, such as Wireless Sensor Networks (WSNs), the Internet-of-Things (IoT), and Machine-to-Machine (M2M) communications, involves the use of batteries, which pose a serious environmental risk, with billions of batteries disposed of every year. However, the combination of sensors and wireless communication devices is extremely power-hungry. Energy Harvesting (EH) is fundamental in enabling the use of low-power electronic devices that derive their energy from external sources, such as Microbial Fuel Cells (MFC), solar power, thermal and kinetic energy, among others. Plant Microbial Fuel Cell (PMFC) is a prominent clean energy source and a step towards the development of self-powered systems in indoor and outdoor environments. One of the main challenges with PMFCs is the dynamic power supply, dynamic charging rates and low-energy supply. In this paper, a PMFC-based energy harvester system is proposed for the implementation of autonomous self-powered sensor nodes with IoT and cloud-based service communication protocols. The PMFC design is specifically adapted with the proposed EH circuit for the implementation of IoT-WSN based applications. The PMFC-EH system has a maximum power point at 0.71 V, a current density of 5 mA cm 2 , and a power density of 3.5 mW cm 2 with a single plant. Considering a sensor node with a current consumption of 0.35 mA, the PMFC-EH green energy system allows a power autonomy for real-time data processing of IoT-based low-power WSN systems. View Full-Text
Keywords: energy harvesting; internet of things (IoT); plant microbial fuel cell (PMFC); self-powered systems; wireless sensor network energy harvesting; internet of things (IoT); plant microbial fuel cell (PMFC); self-powered systems; wireless sensor network
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Osorio de la Rosa, E.; Vázquez Castillo, J.; Carmona Campos, M.; Barbosa Pool, G.R.; Becerra Nuñez, G.; Castillo Atoche, A.; Ortegón Aguilar, J. Plant Microbial Fuel Cells–Based Energy Harvester System for Self-powered IoT Applications. Sensors 2019, 19, 1378.

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