Saturday, April 19, 2008

Prototype

We tried our first prototype of the pulser pump. Basically, it was two tubes joined to make a U-shape, an upside-down juice bottle in the middle of the U, and a tube sticking out of the juice bottle. Our first test was in a pool, and although we had some slight success when we used the pool's jets, the slow water flow and the leaky juice bottle hampered our progress.
At the Tech, we were very excited to get even a few drops into the container. However, the leaky bottle is still a problem, and we'll need to rebuild the prototype. Also, we need to divert some of the flow, because right now it's spilling over.

Stuff to work on:
-Replacement for the juice bottle
-Make the entire thing more watertight
-Find ways to get more air into the pump
-Divert the flow

Despite the myriad obstacles our team will now face, we're ecstatic to see that the pump actually works. Although we saw it on YouTube, and everything we see on YouTube is true, we half-believed that the pump worked by magic. It's a great design, because it contains no moving parts, can easily be rebuilt, runs on the stream itself (and not, for example, a waterfall. In a calm stream, one could easily dig trenches or put in rocks to create air bubbles) and runs continuously. We chose this design over the water wheel, which can easily break and requires a stream. Also, in real life, for a water wheel to be effective the force of the stream would have to be unrealistically strong.

Anyway, the trial went well because we saw what we needed to fix, and we also realized that our device works.

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