P14417: B9 Plastics - Particle Filter Problem Definition Dan Anderson / Thomas Heberle / Perry Hosmer / Karina Roundtree / Kelly Stover September 10, 2013

Team Overview Name Discipline Daniel Anderson (PM) Industrial Engineer Thomas Heberle Mechanical Engineer Perry Hosmer Karina Roundtree Kelly Stover Project Team Guide: Gerald Garavuso

Agenda Team Norms & Values Project Background Problem Statement & Project Deliverables Engineering Requirements Design Drivers & Critical Challenges Draft of Project Plan Next Steps…

Team Norms and Values Punctual Thorough Accurate Professional and Ethical Committed

Project Background Local non-profit organization, B9 Plastics, hopes to save lives with their “Better Water Maker” (BWM) UV transmission disinfection system. Before the UV transmission, a particle filter needs to be used to prepare the water for disinfection. Previous Project & Issues Last year, a French Press Particle Filter was designed for The BWM, but presented several issues. A bucket tapering issue. Excessive force was required. Construction integrity

Theory of Product Function UV Filtration Process: The Particle Filter serves as a pre-filter for the UV transmission process. When using UV light to disinfect water, the effectiveness of the system depends on the source water being relatively clear, particle free, and free of dissolved UV absorbing compounds. Unclean Water Removes particles from the water. This makes UV transmission more effective. Particle Filter UV UV Transmission

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

Project Scope & Deliverables Eliminate particles greater than 5 microns in size Produce a design that is economically viable for use in developing countries Design the device to be reusable, and use only consumable parts that are locally available Deliverables to date Functional prototype Bill of Materials Design Drawings Assembly and manufacturing plan Test plan and results Documentation*

Use Scenarios People may collect water: From a river or lake From a common well From home (not clean) The system will need to adapt to all these potential use scenarios. *Our end goal is to have a filter that is easy to use and easily adaptable to different scenarios.

Stakeholders Bob Bechtold, Harbec Kate Chamberlain, B9 Plastics Gerald Garavuso, Faculty Guide Chris Fisher, MSD Office Sponsor End Users RIT RIT* Mark?*

Customer Requirements Rev. 3 9/6/13 Rank: 9 high,3 med,1 low Category Customer Req. # Importance Description Comment/Status Constraints CR1 3 Flow rate must be at least 1 lpm   Ease of Use CR2 9 Easy to Clean/Recharge CR3 Lightweight for transport. CR4 Has a minimal start-up period. CR5 Operates using energy available naturally (gravity, human power, etc.) Economics CR6 Filter is Inexpensive CR7 Usable by a family of 5, for 2-5 years w/out full replacement CR8 Requires no consumables for operation, except for very cheap & locally available materials (salt, soap, sand, etc.) Functionality CR9 Improves UV Transmission CR10 Removes Particles (turbidity/total suspended solids) CR11 Does not negatively affect the taste of the water Safety CR12 Safe to use. (No hazardous releases)

Engineering Requirements Rev. 3 9/6/13 Category Customer Requirement Function Metrics Direction Units Marginal Target Constraints Flowrate Meet flow rate constraint Amt of water per min. ^ lpm (Liters per Minute) 1 2 Ease of Use Easy to Clean/Recharge Easy to prepare for use Time to clean v Minutes 10 5 Lightweight for transport. Minimize weight of filter Weight in LBs LBs (Pounds) Has a minimal start-up period. Minimize start-up Time to begin filtering s (seconds) 30 Operates using energy available naturally (gravity, human power, etc.) Doesn't need power source Binary (Yes/No) - No Economics Filter is Inexpensive Minimize cost of filter Total cost to produce $ (dollars) 25 20 Usable by a family of 5, for 2-5 years w/out full replacement Maximize durability of filter Mean Time To Failure hrs (hours) 365 912.5 Requires no consumables for operation, except for very cheap & locally available materials (salt, soap, sand, etc.) Minimize cost to maintain Annual cost to operate Functionality Removes Particles (turbidity/total suspended solids), improves UV TRANSMISSION Turbidity is decreased Yes total suspended solids decreased amt of total suspended solids mg/L (milligrams per liter) Does not negatively affect the taste of the water No negative taste of water Percent of people who say water tastes bad % Safety Safe to use. (No hazardous releases) Doesn't produce hazardous release Use requirements to create visual representation of the most critical requirements.

Engineering Requirements House of Quality Engineering Requirements Needs Priority Turbidity is decreased Total suspended solids decreased Minimize cost of filter Maximize durability of filter Minimize cost to maintain No negative taste of water Doesn't produce hazardous release Meet flowrate constraint Easy to prepare for use Minimize weight of filter Minimize start-up Doesn't need power source Flowrate must be at least 1 lpm 3   x Easy to Clean/Recharge 9 Lightweight for transport. Has a minimal start-up period. Operates using energy available naturally (gravity, human power, etc.) Filter is Inexpensive Usable by a family of 5, for 2-5 years w/out full replacement Requires no consumables for operation, except for very cheap & locally available materials (salt, soap, sand, etc.) Improves UV Transmission Removes Particles (turbidity/total suspended solids) Does not negatively affect the taste of the water Safe to use. (No hazardous releases) Measure Binary (Yes/No) mg/L (milligrams per liter) $ (dollars) hrs (hours) % lpm (Liters per Minute) Minutes LBs (Pounds) s (seconds) Sum of (Priority) 18 12

Preliminary Schedule

Milestones Ahead Concept Selection Proof of Concept 9/22/2013 System Design 9/26/2013 Proof of Concept 10/10/2013 Subsystems Design 10/22/2013

Looking Forward Questions? Immediate Next Steps Begin developing function tree Benchmarking technologies related to primary functions Risk Assessment Questions?