Team 10Team 10

Jared Huffman, Brianna Bultema, Achyut Shrestha, Jared Huffman, Brianna Bultema, Achyut Shrestha, and and

Christopher MichaelsChristopher Michaels

Introduction and OutlineIntroduction and Outline Project SummaryProject Summary Design StatusDesign Status ConclusionConclusion

Project SummaryProject Summary

A Brief OverviewA Brief OverviewTask BreakdownTask BreakdownPurpose of a Microbial Fuel CellPurpose of a Microbial Fuel Cell

Power ManagementPower ManagementFeedingFeedingPower GenerationPower Generation

How a Biobattery WorksHow a Biobattery Works

Project SummaryProject Summary Design StatusDesign Status Planning Planning ConclusionConclusion

Project SummaryProject Summary

Schematic courtesy of Derek R. Lovely Schematic courtesy of Derek R. Lovely (Microbial Energizers: Fuel Cells the Keep Going?)(Microbial Energizers: Fuel Cells the Keep Going?)

Project Summary Project Summary Design StatusDesign Status ConclusionConclusion

Design NormsDesign Norms

StewardshipStewardship

Reduce the usage of corrosive chemicalsReduce the usage of corrosive chemicals

TrustTrust

Dependable, ReliableDependable, Reliable

JusticeJustice

Rights of Non-UsersRights of Non-UsersProject Summary Project Summary Design StatusDesign Status ConclusionConclusion

DesignDesign

Case DesignCase DesignMust be less than 30lbs. and smallMust be less than 30lbs. and small

Considering using an Air Cathode design to reduce Considering using an Air Cathode design to reduce weight from 65 lbs. for greater portabilityweight from 65 lbs. for greater portability

Have consulted Professor Hozalski at Have consulted Professor Hozalski at Professor Wonder’s recommendationProfessor Wonder’s recommendation

Project SummaryProject Summary Design Status Conclusion

DesignDesign

Fuel cell arrangement and compositionFuel cell arrangement and composition Will use a combination of serial and parallel circuit Will use a combination of serial and parallel circuit

designdesign Lower chance of battery and circuit failureLower chance of battery and circuit failure

Will use Geobacter MetallireducensWill use Geobacter Metallireducens Will use aerobic bacteria for protection against airWill use aerobic bacteria for protection against air

Close proximity Graphite Mesh for electrodeClose proximity Graphite Mesh for electrode Cellophane membraneCellophane membrane

Project SummaryProject Summary Design Status Conclusion

DesignDesignFeedingFeeding

Project SummaryProject Summary Design Status Conclusion

DesignDesign

Power ManagementPower ManagementMonitoringMonitoring

Must alert user of excessive current draw and Must alert user of excessive current draw and feeding times feeding times

Must alert user of cell and circuit failureMust alert user of cell and circuit failurePlanning to use an ADC, microprocessor, and LCDPlanning to use an ADC, microprocessor, and LCD

Project SummaryProject Summary Design Status Conclusion

DesignDesign

More Power ManagementMore Power ManagementRegulationRegulation

Must output 4.75V-5.25V and 100mA-500mA for USB compatibilityMust output 4.75V-5.25V and 100mA-500mA for USB compatibilityMust overcome low current problemMust overcome low current problemWill use the 61000 series regulating chip design from Texas InstrumentsWill use the 61000 series regulating chip design from Texas Instruments

Must step up voltage to about 5V from about 3.3VMust step up voltage to about 5V from about 3.3V

Project Summary Project Summary Design StatusDesign Status ConclusionConclusion

Testing and PrototypingTesting and Prototyping

Have constructed an experimental case with the Have constructed an experimental case with the desired membranedesired membrane Testing still in progressTesting still in progress Nafion membrane second choiceNafion membrane second choice

Have electrical design almost finalizedHave electrical design almost finalized Will need to test it in lab due to inability to test via Will need to test it in lab due to inability to test via

computer simulationcomputer simulation

Project SummaryProject Summary Design Status Conclusion

Current Schedule andCurrent Schedule andExpensesExpenses

No changes in plans for expensesNo changes in plans for expensesHave spent $10 on parts to test membranesHave spent $10 on parts to test membranes

Are on scheduleAre on scheduleWill have design and testing completed by Will have design and testing completed by

March 17March 17Will have presentation ready for industrial Will have presentation ready for industrial

consultant on March 19consultant on March 19

Project SummaryProject Summary Design Status Conclusion

ConclusionConclusion

Are meeting design normsAre meeting design normsProgressing on all parts of the designProgressing on all parts of the design

Making progress on testingMaking progress on testingNeed to finalize some portions of the Need to finalize some portions of the

designdesignOn schedule and within budgetOn schedule and within budget

Project SummaryProject Summary Design Status Planning Conclusion

Questions and CommentsQuestions and Comments