Chemical Dose Controller Meeting Minutes

Spring 2009 Minutes

2/28/09

Working Group: Nonlinear CD

Nadia
Julia

Accomplishments

• Met with Monroe to discuss Design
• Worked on MathCAD Design file

Metrics

• for 6000 L/min plant flow, the maximum flow through the CD will be 2.5 L/min
• The diameter of the tubing between the flow controller and the pressure break T is 0.75 in
• For up to 10000L/min plant flow, float valves PT75SS or
  PT100SS will give minimal headlosses

Outcomes

• Need to design system based on a range of plant flow rates
• Need to add force balance of CD vs. float to the mathCAD file

Issues

• Need to design flow control module to contain large float device

Working Group: Linear CDC

Accomplishments

• We set up the existing chemical doser with the 3/8" tubing.
• Met with Monroe to set up and outline for the paper
• Worked on creating a robust float sizing algorithm

Metrics

• The 3/8" tube maintained free fall

Outcomes

• Need to order 1/4" T and test to see if it maintains free fall.
• Need to document tests of different tubing sizes.
• Determined the scope of the paper
• Established proper nomenclature for the Chemical Dose Controller
• Determined previous data may be compromised
• We will meet on Sunday to work on Mathcad

Issues

• Need to specify scope and data inclusion for paper
• Need to determine the part name so that we may order the T

Any Overall Team Comments: