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Ecuador Design Report
Heather & Jeff - Design sent 6/12/09
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The drain channel runs along the flocculation and sedimentation tanks at the end of the sed tank that contains the inlet channel. The drain channel should have a slope toward the sedimentation tank end and should be designed to handle the flow that would be generated from opening all of the drain valves for the floc and sed tanks.
Sedimentation tank exit channel
Josiah, Taisuk, Jeff - Completed 6/24/09
The sedimentation tank exit channel is currently a replicate of the entrance channel. The entrance channel size is based on the constraint of not breaking up flocs. This constraint causes the exit channel to be much larger than is necessary. The exit channel should be designed based on the constraint that the head loss in the open channel must be very small compared with the head loss in the launder orifices. This constraint ensures that the flow is uniformly distributed between sedimentation tank bays. The most sophisticated solution algorithm could use the direct step method and incorporate the changing flow through the channel. A simpler solution that would be conservative would be a simple friction slope calculation using the Darcy Weisbach equation adopted for flow in a rectangular channel. The friction slope times the length of the channel can be compared with the head loss in the orifices.
Floc Hopper design
Ben, Chris - Est. Completion Date 6/30/09
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Flocculator, Entrance Tank and Rapid Mix
Ports between flocculator channels
May, Lindsey - Completed 6/18/09
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This code needs to be heavily edited and brought into compliance with the variable naming protocol.
Entrance tank
Lindsey and May - Est. Completion Date 7/2/09
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These tanks need to be drawn. These may be an item that the onsite civil engineer will relocate to fit site conditions, but the design tool should show them at the correct elevation and in a reasonable location.
Materials List
Andrew, Nanditha - Est Completion Date 6/30/09
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