Jeff Suen's Individual Contribution Page
Mid-Semester Fall 2013 Contributions
Performed a mechanical failure test was performed on two pieces of 30 ppi foam in series using the previous team's setup. Almost reached 200 plunges or cycles before testing had to stop when the column holding the 90 ppi foam fell apart and made a mess. No visible damage to foam integrity except near the handles that held the string to decompress the foam. A new design for the foam plant is currently underway. Using a 23"x 64" PVC drum on an elevated platform instead of multiple PVC columns and supports will simply some of the design elements, decrease cost, and maintain a solid support structure that can handle the cleaning method used.
Fall 2013 Contributions
I am a part of the foam filtration team. Our current goal is to design and fabricate a 1L/s gravity powered foam filtration plant that can filter clean for small communities on the scale of <1000 people. Design challenges include but are not limited to incorporating a chemical dosing system, a low flow orifice meter, a coagulant contact chamber, 2 or more foam filters working in parallel, and an improved system of cleaning the filters. The completed foam filtration plant is set to be delivered to Honduras on the next trip for installation and on-site data/feedback.