Category Archives: Uncategorized

Meeting places

Discuss the most convenient place to meet. We encourage participants to meet in public locations such as coffee shops, restaurants, etc. (Rank sites with #1 being most desirable) Mentee says: (the best time to reach me is ) _____ Mentor’s … Continue reading

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Field testing in Dhaka

Yoshika and I have spent the past two weeks field testing our prototype at a hand pump in Dhaka!  We quickly discovered that the field conditions here are quite different from the conditions that we had created in the lab … Continue reading

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Week 9 and 10

Corrosion Test: To test how corrosive the chlorine is on the pump, we cut off two small chunks of the pump and placed one in a beaker with 0.001% chlorine solution (10 ppm) and the other in a beaker with … Continue reading

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Week 10

This week we gave a presentation to the CEE 177S class. It was nice to hear about what the other teams have accomplished over the course of the past two quarters. Moreover, ist was a great opportunity for us to … Continue reading

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Week 9

This week we evaluated how various pumping speeds affect the dosing. It appears first that the dosing is variable across pumping speeds. For slow speeds, we’ve determined that dosing is fairly inconsistent. For medium and fast speeds, the dosing is … Continue reading

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Week 8 Prototype Update

This week we began to take a more serious look at the math behind our device. Specifically, we are trying to discover (1) if the chlorine dosing is in fact linearly related to the flow rate of the water through … Continue reading

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Week 8

This week we continued to test our three prototypes to evaluate the consistency and dosing of each. We are also working to define a mathematical model that describes the dosing of our device. We are interested in better understanding what … Continue reading

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