User:Jshin722/ENES-100/project 3

This is designed for a person working on a project for 4 weeks as part of a 3 credit class.

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Week0 Preferences
Water Ram. Quadcopter, Car Hack

Week1 Narrative
My task was to cut out a small rectangle on the side of a PVC pipe, design a flap, and weighted cover. While going over old documentation which suggested I start from scratch, I decided that the existing design should at least be tested. I did not agree with the previous team's idea that the existing design was flawed and would not work. The water ram was taken home over the weekend, assembled, and tested ten times. The delivery pipe was filled with water and angled at 45% from the ground. The max height of the delivery pipe was 8.5 feet. The initial results have been positive, with the water ram being able to shoot a squirt of water about 1-1.5 feet into the air. The results were also consistent except the one time when the waste valve came off (see video trial #1). The goal is to increase the height the water shoots up by increasing the diameter of the delivery pipe to 1.5" and by incorporating a continuous water feeding system.

/CDIO/

Week2 Narrative
My task was to repair the two PVC fittings that have come off. The inside and outside of the areas where the fittings go together were sanded thoroughly. PVC primer was applied to both surfaces and allowed to dry. PVC cement was applied to both surfaces and the fittings were put together immediately and allowed to dry completely.

/Repair of Water Ram/

Week3 Narrative
My task was to test the water ram with the new combination of and "upright check valve" and a "upside-down waste valve", both without springs (see narrative in Youtube videos for clarification). Another task was to clarify how the water ram was assembled (ex. check valves positioning) and the general principle behind water rams.

I had to do the test mostly by myself but the results, I believe, are still valid and relevant to future testing of the water ram. I set up the water ram using a ladder and duct tape and various points to stabilize the water ram. I filled the delivery pipe with water and released the water by opening the stop valve. The only mishap was when one of the PVC joints broke but that was quickly fixed with duct tape. The videos of testing demonstrate the principles behind the water ram and how further testing must be devised.

/Water ram testing/

Week4 Narrative
Repair damage done to water ram during testing. Repair two PVC joints that came off. Repair the PVC piece that cracked.


 * The cracked PVC was successfully glued together on the second try, by leaving it to dry overnight. The crack did not break when the repaired piece was glued to another PVC piece.

/Cracked PVC repair/