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Project BackgroundB9 Plastic’s Better Water Maker strives to provide clean, disinfected
water to over 800 million people worldwide.The current system treats ½ gallon of water per minute by the use of a
manual hand crank to provide power to the pump and UV light.The water passes by the UV light where it is sanitized.Previous Projects
One design utilized a hand crank flywheel as a method of power generation.Second design improved upon the first and used a recumbent foot petal
instead of the hand crank.Third design focused on removing the turbidity of the water by the use of a
French press style of filter.Previous iterations of the projected were regarded as good ideas but were
not executed.
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Problem StatementThe goal of this project is to create a cheaper system that
requires less effort to operate and is fun for women and children to use.
Cost of the system must be reduced to $100/unit for 1000 units.
The components of the UV system must not altered.Lamp must be powered on for 10 secondsGap between UV light and waterType of bulb
The complete system should be mobile and lightweight to allow for easy storage.
Fully functioning prototype must be completed by the end of MSD II.
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Project ObjectivesRun “some amount” of <5 turbidity water through
the UV system to sanitize it to “certain level”.Redesigned mechanical power generation system.Reduced cost from $200/unit to $100/unit.System is easy and fun to use.
4
DeliverablesCompleted BWM that meets the needs of the users
and B9 PlasticsBill of materialsDesign drawings for manufacturing or modifying by
usersAssembly planUser manual for low literacy usersTest plan and documented results
5
Expected Project BenefitsAllow users in
developing countries access to disease-free water.
Improve RIT’s reputation in environmental sustainability.
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TeamAnna Sementilli (Industrial Engineer, Team Leader)Maxamillion McMahon (Mechanical Engineer)Tyler Schmidt (Mechanical Engineer)Tyler Burns (Mechanical Engineer)Nicolas Reginelli (Electrical Engineer)Jason Andrews (Electrical Engineer)
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Assumptions & ConstraintsUV disinfection system treats ½ gallon of water per
minuteManual power generation must generate at least 17
watts of powerTotal system cost must be less than or equal to
$100/unit for 1000 unitsUV lamp needs 10 second lead timeMust use off the shelf partsCannot alter UV disinfection system
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Issues & RisksProject Risks
Keeping unit cost under $100Not finishing before ImagineRIT or at allNew topics that team is not familiar with
Technical RisksProduct is not safe to useFailure modes not accounted for before productionUsers have no interest in product (not fun to use)Lifetime of product not to desired length
Power System: Benchmarking Specifications
Weight Material Characteristic CostPedal Plastic 102.62
Hand Crank Plastic $200-300Soccer Ball 17 oz EVA Foam 100
Solar Cell (Grade B) 12g Polycrystalline silicon $.40-$.70 per WattTreadle Pump Varies Wood, metal $20-$100
Type of Motor Footprint Size (dimensions) Power OutputPedal Reverse DC 15 Volts
Hand Crank Reverse DC 17wSoccer Ball N/A 27-28" circumfrence 6 Watt
Solar Cell (Grade B) N/A 6"x6" (varys) 4.35 Watts per piece (varys)Treadle Pump Reverse DC 5'x5'x2' ~0.7hp
Power Systems
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B9 Plastics369 Route 104
Ontario, NY 14519(585) 265-6690
non for profitdedicated to social and environmental improvement through the use of
plastics Currently, we are working on many solutions which involve water
treatment, beneficial uses of commingled plastic, and human generated power.
Customer Contact-Bob Becthold, [email protected] Bob Becthold invented the Better Water maker and developed it with his
company, Harbec PlasticsCustomer Contact-Kate Chamberlain, [email protected]
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StakeholdersMSD Project Mentor- Gerald GaravusoBob BectholdKate ChamberlainMSD TeamTrade Without BordersB9 PlasticsHarbec PlasticsRITEnd Users
12
Customer RequirementsCustomer Rqmt. # Importance Description Units Target Goal
Engineering Requirements
Satisfied
CR1 9
Power system provides adequate power for effective water treatment Watts 17 Watts ER2
CR2 9
Power system does not alter components for water treatment n/a
CR3 9
Power system protects itself and components from damage Watts No more than17 Watts ER2
CR4 9
Power system requires less exertion than the current hand crank Calories/Gallon ER7
CR5 9
Power system is comfortable for women and children Calories/Gallon ER7
CR6 9 Power system is safe Factor of Safety >1 ER12
CR7 3
Power Generation unit is adjustable to fit women, men and children n/a ER7
CR8 3
Power system takes advantage of existing activities Yes/No
CR9 9Power system can be used individually Calories/Gallon ER7
CR10 9Power system is inexpensive USD < $100 System ER1
13
Customer Requirements ContinuedCR11 9
Power system is intuitive # of steps <20 ER13
CR12 9Power system is easy to install Minutes <10 ER5,ER8,ER4
CR13 9Power system is easy to maintain
# of replaceable parts < 5 ER4
CR14 9
Power system operation can be explained easily Yes/No Yes ER13,ER4
CR15 9
Power system resists damage from environmental hazards
waterproof/shock testing?
CR16 9Power system has a long life Gallons Treated ER9
CR17 9
Power system provides enough power to get required amount of water Gpm 0.5 ER6
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Customer Requirements (Filtration)
CR17 3 Durable Years 2 years ER11
CR18 9
Filter water to allow UV light to treat all water NTU < 5 ER10
CR19 9Has to be cost effective USD < $100 system ER1
CR20 9Water flows through filter gpm 0.5 ER6
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Engineering RequirementsEngineering Rqmt.
#Importance Description Units Target Goal
Customer Requirements
Satisfied
ER1 9 Cost < $100 CR10,CR19
ER2 9 Power Generated Watts 17 W CR1,CR3,CR2
ER3 Shipping Size ft^3
ER4 3 Training Time min <15 CR11
ER5 3 Installation time min <10 CR11,CR12
ER6 9 Flow Rate gpm .5 gpm CR20
ER7 9 Effort Required Calories/Gallon CR4,CR5
ER8 9 Number of Installers Number of People 1 CR12
ER9 9 Unit Life Gallons Filtered CR16
ER10 3 Reduce Turbility NTU <5 CR18
ER11 3 Filter life Years 2 CR17
ER12 9 Factor of Safety >1 CR6
ER13 9Manual With pictures CR14
17
Engineering RequirementsEngineering Rqmt.
#Importance Description Units Target Goal
Customer Requirements
SatisfiedER1 9 Cost < $100 CR10,CR19ER2 9 Power Generated Watts 17 W CR1,CR3,CR2ER3 1 Shipping Size ft^3ER4 3 Training Time min <15 CR11ER5 3 Installation time min <10 CR11,CR12ER6 9 Flow Rate gpm .5 gpm CR20ER7 9 Effort Required Calories/Gallon CR4,CR5ER8 3 Number of Installers Number of People 1 CR12ER9 9 Unit Life Gallons Filtered CR16ER10 3 Reduce Turbility NTU <5 CR18ER11 9 Filter life Years 2 CR17ER12 9 Factor of Safety >1 CR6ER13 3 Manual With pictures CR14
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Engineering vs Customer Requirements Engineering Rqmt.
Customer Reqmt. CostPow
er Gen
erat
ed
Shippin
g Size
Training
Tim
e
Insta
llatio
n tim
e
Flow R
ate
Effort
Requir
ed
Number o
f Ins
talle
rs
Unit Life
Reduce
Turb
ility
Filter li
fe
Facto
r of S
afety
Man
ual W
ith p
ictur
es
Power system provides adequate power for effective water treatment 9 9 3%Power system does not alter components for water treatment 9 9 3%Power system protects itself and components from damage 9 3 12 5%Power system requires less exertion than the current hand crank 9 1 10 4%Power system is comfortable for women and children 9 9 3%Power system is safe 3 9 12 5%Power Generation unit is adjustable to fit women, men and children 3 3 1%Power system takes advantage of existing activities 9 1 3 13 5%Power system can be used individually 9 9 18 7%Power system is inexpensive 9 3 12 5%Power system is intuitive 9 9 3%Power system is easy to install 1 9 9 9 28 11%Power system is easy to maintain 3 3 3 9 18 7%Power system operation can be explained easily 9 9 3%Power system resists damage from environmental hazards 3 3 1%Power system has a long life 9 9 3%Power system provides enough power to get required amount of water 9 9 18 7%Durable 9 9 18 7%Filter water to allow UV light to treat all water 9 9 3%Has to be cost effective 9 9 3%Water flows through filter 1 9 9 3 22 8%
18 45 7 13 9 19 37 9 33 18 12 12 277% 17% 3% 5% 3% 7% 14% 3% 13% 7% 5% 5% 10%
• P14418: B9 Power Generation: New gearbox, new circuit, recumbent seating for pedal crank
• P13417: B9 Power Generation: Seating arrangement and pedal crank, attempted to reduce RPM’s, motor options
• P09007: Pedal Drive Auxiliary Power Generation: USB power through pedal drive
Benchmarking - MSDPower Generation
• P14417: B9 Plastic Particle Filter: two buckets lid to lid with a 5 micron mesh in-between
• P13418: B9 Pre-filter: French press style
• P12412: UV Water Treatment Safety Valve
• P11412: Clean Water UV Treatment
Benchmarking - MSDWater filter
• The B9 Water Cart Generator, by B9 Plastics, Inc…….….………………Figure 1• SOCCKET….……………………………………………………………….………………. Figure 2• Solar Cell ………………………………………………………………………………….. Figure 3• Treadle Pump……………………………………………………………………………. Figure 4
Benchmarking – Commercially AvailablePower Generation
Figure 1 Figure 2 Figure 3 Figure 4
Team NormsMeetings
Everybody contributes 12 hour advance notice of missing meeting makes it ‘excused’
Re-evaluate meeting time after 2 ‘unexcused’ misses Let the team know if you can’t make a deadline before its too late
Work/Responsibilities Common work to be divided Specialized work distributed by expertise and strengths Somebody will check work
Communication Groupme Text Messaging Email Meeting
Team Roles and Responsibilities Anna – Team Leader Jason – Communications Roles determined by expertise as needed
Problem Resolution• Discuss face to face to determine why the expectation
is not being met• Team Leader will facilitate the conversation
• Consult with Gary if it becomes a regular issue
StrengthsAnna
Hard working/DependableOn time/Committed to CompletionHigh quality work/Seeks help when needed
JasonGroup problem solving skillsMultidisciplinary coordinationBattery technology/management systems
Tyler S.Multidisciplinary team work3D ModelingTime management/prioritization
• Anna• Delegating work• Overloading/getting
overwhelmed
• Jason• No low voltage experience• No course work in power
electronics
• Tyler S.• GD&T• Seeking help early
Weaknesses
StrengthsMax
MATLAB/data analysisTestingTechnical writing/presenting
Tyler B.GD&TSee from multiple perspectivesStatistical analysis
NickLearn quicklyLabVIEWPunctuality
• Max• 3D
modeling/drawings• Materials science
• Tyler B.• Planning• High level analysis
• Nick• Easily distracted• Heavily introverted
Weaknesses
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Next StepsFinalize all Phase I documentation with customerBegin deliverables for Phase IIContinue communicating with our customer to keep
them up-to-date on progress