P14415: Plastic Arborloo Final Review Patrick Morabito Samuel - - PowerPoint PPT Presentation

P14415: Plastic Arborloo Final Review

Patrick Morabito Samuel Svintozelsky Nathan Conklin Michael Coffey John Wilson

Agenda

• Background & Motivation
• Engineering Requirements Overview
• Vacloo Final Prototype
• Vacloo Mold and Build
• Vacloo Testing
• Deckloo Final Prototype
• Deckloo Testing
• Fixtures
• EPA
• Conclusion
• Assessment (Team and MSD)

Background and Motivation

Inadequate sanitation is a major cause of preventable illnesses in children around the

• world. According to UNICEF, diarrhea

alone causes over 1.5 million deaths in children under 5. These illnesses can easily be prevented by improving

• sanitation. However, cost is a major barrier

limiting the adoption of sanitation in Haiti. Peter Morgan’s Arborloo is a simple latrine built over a small pit, which when filled is then moved to a new pit location. The old, filled pit then has vegetation planted on top

• f it, such as a fruit tree.

Project Goal

Design a low cost, plastic, portable, easily constructed, modern looking, and safe to use arborloo base to be used in rural Haiti to improve sanitation.

Engineering Requirements

Critical Engineering Requirements

Design 1 - Vacloo

Vacuum formed plastic sheet inserted over rebar support layout. Covered by High- Density Polyethylene cover and lid. Assembled product installed 2-3 inches below ground level to secure rebar.

Design 1 - Vacloo Mold

Rev 2 Mold Rev 3 Mold

Design 1 - Vacloo Vacuum Forming

Vacuum forming at RIT

• 0.25in HDPE
• Rev 2 Mold
• Results unsuccessful

Vacuum forming at Faro Industries

• 0.0625 - 0.125 in HDPE
• Rev 3 Mold
• Results successful

Vacloo Testing Highlights

• Vacloo loaded to 572 lbs
• Vacloo costs $19.61 per

assembly in lots of 100+

• Vacloo satisfied 13 of 14

engineering requirements

Design 2 - Deckloo

100% Recycled High-Density Polyethylene plastic lumber boards attached together by cross member supports. Includes cover attached by inner tube strips.

Deckloo Testing

• Deckloo loaded to 572 lbs
• Deckloo costs $40.91 in lots
• f 100+
• Deckloo satisfied 12 of 14

engineering requirements

Testing Results

Failed Tests

• Vacloo - Failed tripping hazard spec due to lid knob
• Deckloo - Failed tripping hazard spec due to lid knob
• Deckloo - Failed maximum hole size spec

Rebar Fixture

Deckloo Fixture

EPA P3 Design Expo

• Washington D.C. April 25- April 27
• Presented work to EPA judges and public in hope to

receive additional funding

• Earned Honorable Mention

For the Future!

There are still 2.8 billion people without proper sanitation!

• Use EPA Honorable Mention to go for funding of

future Arborloo projects

• Improve Deckloo fixture
• Assemble more Deckloos with

leftover recycled plastic lumber

• Pursue all plastic Vacloo design

MSD Assessment

Recommendations:

• Design restricted by material and by concept

○ More creative solutions to problem possibly stifled

• Right for MSD?

○ Technical challenge ○ Humanitarian Passion

• Just provide powerpoint slides for the elevator speech in lieu of lecture
• Longer Phases-more time for project and less time working on

presentations

• More in class time to work in MSDI
• Two column formatting for the technical paper
• Make the tables lower in the MSD room again

Conclusion

• Successful design of lightweight

cost effective pit latrine systems

• Possibility for further

development ○ Vacuum Forming in Haiti?

• More Critical Reviews of team

member’s work

Acknowledgements

We’d like to thank:

• Sarah Brownell
• Dr. Brian Thorn
• Pedro Cruz-Dilone
• Kevin Gebo
• Rick Auburn
• The Mechanical Engineering Department Machine Shop Faculty and Staff
• Faro Industries

Questions?