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Specialized MFC research in advanced-systems focusing on advanced-configuration, scale-up, performance-optimization. This paper discusses experiments on soil-based microbial fuel cells (MFCs) as energy scavenging sources. We explain the mechanism ...

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What they did

System
MFC

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Abstract

This paper discusses experiments on soil-based microbial fuel cells (MFCs) as energy scavenging sources. We explain the mechanism of operation for MFCs, perform controlled laboratory experiments of MFCs, and deploy a small-scale insitu pilot in an active farm. We find that traditional energy harvester ICs draw power too aggressively, which reduces overall energy capture. We show that isolated MFCs can be combined in series or parallel to improve the voltage or current output of the harvesting source. Lastly, we observe that under a real-world, drip-irrigated agricultural setting, MFC output is appreciably lower, but consistent at 0.5-2 microwatts.

Keywords

Microbial fuel cellEnergy harvestingEnergy sourceVoltageElectricity generationEnergy (signal processing)

Identifiers

DOI
10.1109/ISCAS48785.2022.9937297
Journal
2022 IEEE International Symposium on Circuits and Systems (ISCAS)
Year
2022