This week we continued to do testing. We tested to find the right amount of nanoparticles to use. The number we first used was way too many, see the picture below of running the system after only 1L.
We redid our calculations, and found a different number. We successfully ran 5L through at a consistent concentration. See the pictures below at the 1L mark and 5L mark. We extracted the nanoparticles solution from the bag at the end and plan on either getting access to a chem lab through Jen to use a vacuum so that we can meausre teh weight of dry nanoparticles collected, or using an oven to evaporate the (per Dr. Xe's suggestion). We will then compare the final weight to the initial weight.
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| After 1L |
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| After 5L |
We replaced our motors with the new ones ordered, and took some time to add screws into them to stregthen the connection. However one motor is still giving us trouble with the weight of the water-filled bag, so we will be figuring that out this week so we can complete recirculation testing. Below is a video showing jsut one of the motors with smoother movements that we added into to the code.
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