• Created by user-59276, last modified by user-5ca95 on Jul 21, 2009

Linear Flow Orifice Meter

Overview

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To create an entrance tank and riser pipe that will provide a linear relationship between the flow rate through the plant and the height of water in the entrance tank. This will allow the Linear Chemical Doser to connect the plant flow rate to the flow controller via a lever to add Alum and Chlorine to the raw water as a function of flow rate through the plant.

Team members Leah Buerman

Lfom team goals and meeting minutes
concept design

Research

Summer 2009
Fall 2008
Spring 2008

Additional information

Presentations

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1 Comment

  1. user-9c36d

    You could divide this task into two steps.

    The first step is testing and then documenting the linear orifice meter that David Railsback designed last semester. You could test this orifice at the CUWFP or possibly in the DeFrees Fluids lab. To test the linear orifice meter we will need a method to control and measure a relatively large flow rate (order 100 Liters per minute) as well as the apparatus that replicates a small entrance tank at an AguaClara plant. I suggest designing this test apparatus in the next few weeks including creating a budget for the materials that we will need to purchase. In your design minimize the amount of machine shop time that is needed to build the test apparatus. One possibility is to use a plastic drum to simulate the entrance tank and use a bulkhead fitting to pass the water out through the wall of the drum. After testing the linear orifice meter the design procedure and the meter performance can be documented in a published scientific paper and this Wiki.

    I've been thinking more about this task and I suggest that you integrate this task with the Pilot Plant team and build the linear flow meter at the CUWFP. You could even join the Pilot Plant Team.

    The second step is adding the automated chemical dosing float/lever system. Thus as you design the linear flow meter consider how to make it easy to add the float/lever system.