PumperNickel design review 2 may 11, 2006

Team PumperNickel Tracy Pizzo MBA 2 Non-profit experience Worked in developing countries Can start a fire without matches (yeah, it’s cool) Jim Culkar MBA 2 Engineer of all kinds (ME, EE, ME again) Went to Myanmar PPT Genius (he’s a consultant...) Alissa Burkholder ME ME Undergrad Went to Myanmar Knows her way around power tools Can do some mean hip-hop Mark Bianco ME ME Undergrad too Loves to build, and he can build anything He’s a Reality TV Star – with a fan club

Our Point of View S mall-plot farmers need a cheaper pump so they can get a better pump S mall-plot farmers need a cheaper pump so they can get a better pump PumperNickel: PumperNickel: It will take some bread, It will take some bread, but not much… but not much…

Our Customers

Nanda-thida  Open well or pond  Tube well – hand pump  Maung dat – own land  Maung dat – rented land

It’s What the Farmers Need  When we mentioned there was a team looking at a $5 pump - boy did they light up! They all said a lower cost pump would be fantastic  They have seen first hand how cash strapped families are and how much they want our pumps but just can't afford the $13

Design Requirements (sourced from exp and competiton)

Water Displacement

Rope and Washer History  Has been used before, but has never cost $5  Other areas have struggled with issues surrounding durability – clients want it to last longer  We do not think this will be an issue for IDE Myanmar Potential Issues  The rope stretches – does this matter?  Sun deterioration – will farmers be willing to replace parts during the season?  Can we make it foot rather than hand powered?  What kind of cheap wheel can we use at the top? Our Process  How to make the rope and washer pump cheaper:  Could we use bamboo for the river pipe?  Could we use a soda bottle for the guide pulley?  Are there found materials for the main wheel?  Can it be a “rope and rope” pump?

Diaphragm

Plastic Pump

Basic Economics: “The Rump”  Will the pump get the farmers to the next stage?  Cost of tube well = $20  Cost of metal pump = $15  Acre of Land = $400 NPV for “one-year” pump Cost of Pump = $8 Profit from Crop = $100 One Crop Two Crops Cost of Capital = 10% Cost of Capital = 20% $60.30 $63.48$40.23 $106.95

Our Future Explorations  Is a bamboo piston viable? What about a bamboo diaphragm?  Can we build a one piston pump?  Honing in on blow molding and injection molding  “Degrading” test of rope and washer

Vulnerability – potential pitfalls  Rope and Washer not high enough quality to last even one season – how long will it take for the rope/cloth to degrade?  There isn’t enough bamboo, and it isn’t strong enough to be the pump body  Blow-molding or injection molding is just too expensive  We can’t lift the water enough to make any of our solutions viable for most farmers  We’re missing major “social input” – what do the farmers want this to look/feel/act like? Is cheap sufficient?  Frame for plastic pump

Next Steps