Design Goals

Spring 2009 Team Members

Reiko Baugham
Heather Hunter
Adela Kuzmiakova
Heather Reed
Sara Schwetschenau

Spring 2009 Goals

1. Update Variable Naming Guide
   • Update naming guide based on programs currently being used. Each variable should be complete with the definition, where it is used, and where it is calculated.
2. Edit Flocculation program
   • Rewrite program from an energy dissipation approach.
     •  Overall flocculation potential of the flocculator is now based on Θ*ε^(1/3) rather than on G*Θ.
     • We might need to increase the flocculation potential for future plants to improve performance under low turbidity conditions.
   • Correct placement of baffles for AutoCAD drawing. The algorithm needs to determine where the baffles start based on the entrance tank.
   • Add checks for port hole placement vs water level and baffle placement vs port hole.
3. Edit the Sedimentation Slopes program
   • Correct arbitrary assumptions - velocity ratio.
   • Automate the program to check for reasonable values--add calculations that a reviewer can use as checks.
     • Compare average velocities in channels, ports, manifolds, and orifices--these should be similar.

1. • Update slopes program variables to incorporate triangular and trapezoidal geometries in the other programs.
     • Create a critical design parameter that will be the maximum length of the sedimentation tank as a function of the inlet manifold geometry.
     • Inlet manifold geometry will be determined based on the length and velocity through the sedimentation tank.
   • Changes made for 4 Communities need to be incorporated into the general program.
   • New sludge drain design for the sedimentation tank.
   • Incorporate floc weir design upon confirmation that it works.

1.  
2. Update AutoCAD method of drawing sedimentation tank and floc tank
   • Draw the sedimentation tank so that it is possible to see order of construction.
     • Begin with the rectangular tank, and then fill in the additional items (bottom slopes containing sludge channel, drop tubes, sludge weir, sludge port plates, manifold sloped plates).
     • Group related objects so they can easily be manipulated in the CAD drawing
       • For example, group all plate settlers in each sed tank, group baffles similarly.

1. #* Add construction details including ledge that supports the plate settlers, inlet manifold plates, sludge drain channel, sludge drain plates, sedimentation tank inlet drop tubes, inlet channel port covers, etc.
   • Check AutoCAD dimensions to make sure the plant is being drawn correctly
   • Make sure code includes geometry-specific dimensions for the Sedimentation Slopes program.
   • Make sure all components draw correctly for Sedimentation Tank--location of plate settlers, exit launder.
   • Incorporate change from sludge pipe to sludge channel.
   • Inlet pipes into slopes need to be changed to concrete voids--no longer pipes. Make sure to change corresponding layer.
2. Update Algorithm Documentation for MathCAD programs
   • Make sure rendered images are shown with dimensions.
   • Make sure variable list is updated.
   • Edit for clarity. Each member needs to review.
3. Organization
   • Programs for each design need to be filed (possibly on the Wiki) for easy review at a later point.
   • Detailed dimensions of each plant need to be posted on the Wiki with AutoCAD drawing.
   • Document the design of the existing facilities (as built) in a table format.
     • Should include tank dimensions, residence time for flocculator, and Vup and Vc for sedimentation tank.
4. AutoCAD Documentation
   • Update documentation for current programs--make sure variables are correct.
   • Finish adding pictures to Sedimentation Tank documentation page.
5. Work on plant designs as presented throughout the semester
   • Create a series of designs and post them on the wiki to demonstrate automated design capabilities. Show the effect of changing different user inputs.
   • Complete Gracias design.
   • Ecuador university pilot plant
   • Pakistan pilot plant
6. Develop a plan to create the detailed documentation that the partner organization needs to build the facilities
   • Materials list
   • Fabrication method for the plate settlers
   • Possibility to add these details to AutoCAD?
   • Greater design detail for new partner organizations especially since it is possible that an AguaClara plant will not be on site.
7. Provide continuity training and recruitment
   • Recruit students for summer program.
   • Train students who will be continuing on the design team during the summer and next fall.