Things to Do

[cheertsang]

• [x] Verify terminal velocity by experimentation (terminal velocity found in Spring 2018 = .349 m/s)

• [x] Calculate theoretical water pumped

• [x] Fix code for experimental calculations

• [x] Calculations to find efficiency (actual/theoretical)

• [ ] Experiment with different parameters of experimentation (time of opening/closing valve)

• [x] Look at graphs at point where waste valve pressure goes above the air chamber pressure

• [x] Put pressure sensor closer to the effluent valve

• [ ] Account for air in tubing from air chamber

[cheertsang]

Height of drive pipe: 1.74 m Height of drive pipe + water level in head tank: 2.06 m diameter of drive pipe: 23.65 mm

[cheertsang]

• [x] adjust pressure sensor - move closer to effluent
• [x] re-run tests, measure height of water in air chamber - get a rough estimate of how much water is being pumped during each cycle

[cheertsang]

initial water level 6 cm from top of air chamber initial pressure in air chamber: 698.97 cm final water level 5 cm from top of air chamber

The volume of water pumped per 1 cycle is 0.5519 milliliter The theoretical time period in which water is being pumped into the air chamber is 0.08193 second The theoretical amount of water pumped is: 40.91 milliliter

similar to previous results Markdown file

[cheertsang]

Meeting with Monroe buy new pressure sensors, one that allows for higher pressures redo pulley system tests to figure out what spring we need

• set the length of spring, solve for k build new ram pump - effluent same size as waste check valve
• calculate headloss out of effluent in current setup?
• need to order brass nipple?
• something about the connection btwn the check valves

figure out setup for EPA

[alyssaju]

Week of 6/3

EPA Grant Proposal:

• [x] Send out emails for letters of support
• [ ] Finish Phase I of grant proposal
• [x] Brainstorm for Phase II of grant proposal (vc with team on Fri)
• [x] Complete and compile forms for grant proposal

Lab:

• [x] Cut tube for air tank and glue onto effluent pipe
• [x] Test air chamber for water tightness

Week of 6/10

EPA Grant Proposal:

• [ ] Begin writing Phase II and continue brainstorming project ideas for Phase II of grant proposal
• [x] Compile letters of support on Google Drive

EPA Conference:

• [ ] Work on poster (link on team Google Drive)
• [ ] Create checklist of what to bring to EPA Conference (e.g. parts of ram pump)

Lab:

• [ ] Install new pressure sensor (ProCoDA)
• [ ] Run water through new ram pump; test to measure time that the valve is closed

Week of 6/17 week of conference

EPA Grant Proposal:

• [ ] Edit and finish up grant proposal

Lab:

• [ ] Trace complete pressure cycles of manually opening and closing of the ram pump
• [ ] Operate the pump for an extended period of time (maybe over a weekend?)

Other:

• [ ] Work on research report