Post on 15-Jan-2016
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Toteable, Potable Water
Group A2:Nate BarberaKatie KimarRyan Reis
Connie Slaboch
Critical Concept Design ReviewCritical Concept Design Review
11/28/2006
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Today we’ll cover….
Project Overview
Initial Design
Technical Challenges
Final Design
Prototype Demonstration
Results & Lessons Learned
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Outline
Project Overview
Initial Design
Technical Challenges
Final Design
Prototype Demonstration
Results & Lessons Learned
Project Overview
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Project Overview
ASME Design Competition Energy is input from a linkage or
mechanism driven by human effort.
It should be small enough to be easily stored or transported for emergency use.
It should be easily assembled from its stored configuration
Collaboration World Health Organization FEMA, Red Cross In-house specialists
Budget - $480
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Project Overview (Cont’d)
Target Market Emergency Situations Individuals/Families Emergency Services
Design Goals ASME Competition < 40 lbs Minimize Assembly Time
Design Relevance Cheap Durable Corrosion-resistant design
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Outline
Project Overview
Initial Design
Technical Challenges
Final Design
Prototype Demonstration
Results & Lessons Learned
Initial Design
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Initial Design
Chosen Concept Friction heat source Condensing Cone Bicycle input Vacuum
Pros Direct heat input Sealed, simple condensation
system Cons
Distilled water contamination Feasibility of condensing Feasibility of heat
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Outline
Project Overview
Initial Design
Technical Challenges
Final Design
Prototype Demonstration
Results & Lessons Learned
Technical Challenges
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Key Technical Issues
Friction Materials and Spring Selection Find the appropriate combination of materials
Garolite and semi-metallic brake pads Identify spring and required normal force
80 lbf normal force
Influence of Heat Transfer on Part Design Determine geometries of frictional disks Decide on usefulness and extent of insulation
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Key Technical Issues
Condensing cone feasibility Consider stresses; heat transfer Lab experiment setup better able to meet needs
Vacuum Distillation Techniques Determine appropriate type of pump Determine vacuum strength, system temperature
Target pressure: 820 mbar Boiling temperature of approx. 94°C
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Key Technical Issues
Embedded Intelligence Temperature sensor
LM35D National Semiconductor sensor Op-amp used to provide 30 mV/°C output
Pressure transducer Provide feedback to user to maintain designated pressure MPX4100AS absolute pressure sensor
Miscellaneous Driving mechanism for shaft Drive shaft support Bike gear mounting Insulation
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Outline
Project Overview
Initial Design
Technical Challenges
Final Design
Prototype Demonstration
Results & Lessons Learned
Final Design
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Final Design
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Final Design (cont’d)
Bike and chain Friction Elements Table
Condenser Glassware Embedded Intelligence
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Outline
Project Overview
Initial Design
Technical Challenges
Final Design
Prototype Demonstration
Results & Lessons Learned
Prototype Demonstration
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Prototype Demonstration
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Outline
Project Overview
Initial Design
Technical Challenges
Final Design
Prototype Demonstration
Results & Lessons Learned Results & Lessons Learned
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Results & Lessons Learned
WATER WAS DISTILLED!
Boiling water temp = 72ºC
Average pressure = 75 kPa
Key: Pressure Change!
Conclusions Feasible, but not
practical Improvements
Copper tube Insulation Glass Caulk
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THANKS
Any Questions?