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- Wrote meeting minutes
- Recalibrated the water level, temperature sensor, and flow rate for experiments with vary sizes of sand.
- Reconfigure the Sand Filter Setup to accommodate higher flow rates.
- 4/17: Add the Aerator Apparatus from aeration method to supersaturate the cold water flowing into the sand filter setup.
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- Process Controller: Instructions for setup was typed up in a Word Doc for anyone to use our setup and run experiments.
- Reprogram Process Controller: add a pressure sensor to monitor the water level in the Aerator Apparatus.
- Flow rate measure in Process Controller is not accurate because we altered the flow sensor to acquire a higher range of flow range that can be utilized.
- 4/17: Talked to Monroe about issues of pressure buildup
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- With larger grain sizes, the setup builds up pressure and causes overflow of water level into the pressure sensor tubing.
- Need to add another feature features to the setup to run experiment with larger sand sizes such as Sand 30 (0.84 - 0.59 mm) and Sand 20 (1.18 - 0.84mm),.
- Need to expand the current hole size on the bottom of the bubble collection container to relieves some potential pressure buildup in the setup.
- Need to collect data and retest grain sizes with the improved setup.