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P14417: B9 Plastics - Particle Filter System Design. Dan Anderson / Thomas Heberle / Perry Hosmer / Karina Roundtree / Kelly Stover October 1, 2013. Agenda. Recap: Background Info. & Requirements System Analysis Functional Decomposition Concept Analysis Concept Selection
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P14417: B9 Plastics - Particle FilterSystem Design Dan Anderson / Thomas Heberle / Perry Hosmer / Karina Roundtree / Kelly Stover October 1, 2013
Agenda • Recap: Background Info. & Requirements • System Analysis • Functional Decomposition • Concept Analysis • Concept Selection • System Architecture • Engineering Analysis • Risk Assessment • Test Plan • Next Steps
Problem Statement Current State: • In order to use the Better Water Maker (BWM) users must first pour the water through a cloth before being treated. Desired State: • The device should clear particles from water to allow the BWM to operate more effectively. • The device should be simple to use and operable by both women and children. Project Goals: • Analyze the design selected by P13418 • Improve the effectiveness of the Better Water Maker Notable Constraints: • Must be usable by both women and children • Only locally available materials may be consumed • Must not negatively impact the smell and taste of water
MagNet • Pros • Adjustable diameter • Reduced user intervention • Self Aligning • Cons • Expensive • Difficult to repair
Springs • Pros • Good flow rate • Cons • Complex • Bulky
Colander • Pros • Simple • Large mesh area • Cons • Not as durable as other ideas
Lid • Pros • Easy to use • Compact • Simple • Cons • Lift water to pour in • Have to take apart to clean Selected Concept!
Engineering Analysis • Diffuser Plate • Thickness • Necessary hole size • Mesh Filter(s) • Mesh size • Flow rate • Multiple filters • Fasteners • Easily disassembled for cleaning • Vertical Positioning Device • Volume of water to be filtered • Materials • Contents of water • Amount of water to be filtered at a time
Test Plan • Mesh Layers (Flow rate) • Compensate for water build up • Diffuser Plate • Force of water • Fastening Equipment • Stress Test • Lip Level • Forces due to weight of water • Handles • Structural integrity
Looking Forward • Immediate Next Steps • Use feedback from SDR to revisit areas as necessary • Engineering Analysis Tasks • Determine specific methods/equations for test plan. • Identify Critical Subsystems & associated Specifications