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This project aims to design a device to clear particles from water, improving the effectiveness of the Better Water Maker. System analysis, concept selection, engineering analysis, and risk assessment are key components. Constraints include usability by all, use of local materials, and water taste preservation.
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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