Chemical Dose Controller Design Program
This program will code for a general dose controller design and will incorporate the design into the Automated Design Tool. The doser design will be for a triple scale (three different orifices). See the CDC research team page for a more detailed explanation of this.
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Design Process:
Expert Inputs:
HL.ChemDoserMin
User Inputs:
Q.Plant (HL.Plant)
Design Assumptions:
C.DoserScaleAlumMax
Code Calculations:
Constant head tank orifice size
Dosing tubes size to ensure orifice head loss is much greater than major loss in tubing
Equations:
Orifice Equation:
\large $$ Q = K_
A_
\sqrt
$$
Where,
\large$$ Q = Flow Rate $$
\large$$ h = Head Loss $$
\large$$A_
= Area of the Orifice $$
\large$$K_
= Orifice Constant $$
Orifice Head Loss:
$$
h_
= K_
{{V_
^2 } \over {2g}}
$$
Major Head Loss:
$$
h_
= f {L\over {D}}V^2} \over {2g
$$