Transcript Oral Presentation 3

Team 10
Jared Huffman, Brianna Bultema, Achyut Shrestha,
and
Christopher Michaels
Introduction and Outline
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Project Summary
Design Status
Conclusion
Project Summary
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A Brief Overview
Task Breakdown
 Purpose of a Microbial Fuel Cell
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 Power
Management
 Feeding
 Power Generation
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How a Biobattery Works
Project Summary
Design Status Planning
Conclusion
Project Summary
Schematic courtesy of Derek R. Lovely
(Microbial Energizers: Fuel Cells the Keep Going?)
Project Summary
Design Status
Conclusion
Design Norms
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Stewardship
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Trust
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Reduce the usage of corrosive chemicals
Dependable, Reliable
Justice
 Rights of Non-Users
Project Summary
Design Status
Conclusion
Design
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Case Design
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Must be less than 30lbs. and small
 Considering
using an Air Cathode design to
reduce weight from 65 lbs. for greater portability
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Have consulted Professor Hozalski at
Professor Wonder’s recommendation
Project Summary
Design Status
Conclusion
Design
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Fuel cell arrangement and composition
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Will use a combination of serial and parallel circuit
design
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Will use Geobacter Metallireducens
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Lower chance of battery and circuit failure
Will use aerobic bacteria for protection against air
Close proximity Graphite Mesh for electrode
Cellophane membrane
Project Summary
Design Status
Conclusion
Design
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Feeding
Project Summary
Design Status
Conclusion
Design
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Power Management
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Monitoring
 Must
alert user of excessive current draw and
feeding times
 Must alert user of cell and circuit failure
 Planning to use an ADC, microprocessor, and LCD
Project Summary
Design Status
Conclusion
Design
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More Power Management
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Regulation
 Must
output 4.75V-5.25V and 100mA-500mA for
USB compatibility
 Must overcome low current problem
 Will use the 61000 series regulating chip design
from Texas Instruments
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Must step up voltage to about 5V from about 3.3V
Project Summary
Design Status
Conclusion
Testing and Prototyping
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Have constructed an experimental case with the
desired membrane
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Testing still in progress
Nafion membrane second choice
Have electrical design almost finalized
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Will need to test it in lab due to inability to test via
computer simulation
Project Summary
Design Status
Conclusion
Current Schedule and
Expenses
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No changes in plans for expenses
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Have spent $10 on parts to test membranes
Are on schedule
Will have design and testing completed by
March 17
 Will have presentation ready for industrial
consultant on March 19
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Project Summary
Design Status
Conclusion
Conclusion
Are meeting design norms
 Progressing on all parts of the design
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Making progress on testing
Need to finalize some portions of the
design
 On schedule and within budget
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Project Summary
Design Status Planning
Conclusion
Questions and Comments