NDLI: Undersea electronics powered by large surface area Benthic Microbial Fuel Cells

Content Provider	IEEE Xplore Digital Library
Author	Kagan, J.A. Higier, A. Hsu, L. Chadwick, D.B.
Copyright Year	2013
Description	Author affiliation: Environ. Sci., Space & Naval Warfare Syst. Center-Pacific, San Diego, CA, USA (Kagan, J.A.; Higier, A.; Hsu, L.; Chadwick, D.B.)
Abstract	Benthic Microbial Fuel Cells (BMFC) have the potential to provide long-term, sustainable power for undersea devices. BMFCs operate by harnessing organic matter in the sediment as a fuel source. They typically output 10 to 100mW. To increase the power output, BMFCs with larger electrodes are needed. However, past work has shown that power output does not scale linearly with electrode surface area. To build a large surface area BMFC capable of greater than 100mW power output, experiments were conducted to: 1. determine at what surface area the power output deviates from scaling linearly; 2. determine if independent anodes could be wired together and maintain their power density; 3. determine the proximity independent anodes could be from one another and maintain their power densities; 4. Determine the anode to cathode relationship that prevent cathode limitations. Experiments showed that: 1. anode surface areas of $1-2m^{2}$ provide a good balance between power output and complexity when incorporated into a larger system; 2. independent anodes could be wired together and maintain their power density; 3. anodes could be 2-3cm apart and maintain their power densities; 4. 1:1 anode to cathode surface areas prevent cathode limitations. Based on the results of lab experiments, a BMFC deployment sled was designed to deploy a BMFC with two $10m^{2}$ modular anodes, spaced 5cm from one another, and successfully deployed this BMFC in San Diego Bay without the use of a diver. The BMFC sustained 250mW and powered environmental sensors and transmitted data over an acoustic modem.
Sponsorship	IEEE Oceanic Eng. Soc.
Starting Page	1
Ending Page	7
File Size	1055822
Page Count	7
File Format	PDF
ISBN	9780933957404
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-09-23
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	MTS
Subject Keyword	Anodes Cathodes Sediments Carbon Instruments Acoustics Modems
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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