Challenges for Spring 2010

Subteam Leader: Karen Swetland

Number of team members needed: 5-6 total

Important team member skills:

• MathCAD
• Fluid Mechanics
• AutoCAD
• Vendor Purchasing and Relations
• Process Controller

Challenges

Though much progress has been made in the development of a reliable and fully-functional nonlinear chemical dose controller, many challenges still remain. On the whole, the current designs need to be validated by various experiments.

Orifice Sizing and Dual Scale

The dual scales on the lever arm currently do not include major head loss in the dosing tubes. The team will investigate the effect this head loss could have on dosing accuracy.

Rapid Mix Tube

The rapid mix tube design will be validated using the newly constructed model tube.

Float Sizing

The float sizing calculations are also looking further into potential margins of error.

Prototype Frame

Furthermore, the full-scale prototype will be built and used in further tests to ensure concurrent function of all components in the system.

Orifice Clogging

The clogging experiment is the first step in ensuring that the orifice sizes we designed are feasible for the given alum doses. Further clogging experiments will be done to reproduce the results and isolate the cause of the clogs.