Quick Answer
Calculate UV Reactor Flow Distribution Uniformity Index (FDUI) from Tracer Residence Time Distribution
Calculator
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Find Engineering Solutions →Result Interpretation
UV Reactor Flow Distribution Uniformity Index (FDUI) from Tracer Residence Time Distribution calculator computes Flow Distribution Uniformity Index (FDUI) in dimensionless using the defined engineering formula and the input values provided. Flow Distribution Uniformity Index (FDUI) is expressed in dimensionless. No universal acceptance threshold is defined by this calculator.
Worked Example
Verified calculation
Given:
- Mean Residence Time = 120
- Standard Deviation of Residence Time Distribution = 30
Expected Result:
- Flow Distribution Uniformity Index (FDUI) = 4
Engineering Interpretation:
Under the given input conditions, the calculated result is: Flow Distribution Uniformity Index (FDUI) = 4 dimensionless.
The actual numerical result is computed by the Runtime engine using the persisted tool definition. The values shown here come from automatically validated test cases.
Formula / Method
FDUI = mean residence time / standard deviation of residence time distributionFormula family: formula_watertreatment_uv_reactor_flow_distribution_uniformity_index_fdui_validator
Variables
| Symbol | Label | Role | Description |
|---|---|---|---|
| t_mean | Mean Residence Time | INPUT | Mean Residence Time |
| sigma_t | Standard Deviation of Residence Time Distribution | INPUT | Standard Deviation of Residence Time Distribution |
| result | Flow Distribution Uniformity Index (FDUI) | OUTPUT | Flow Distribution Uniformity Index (FDUI) |
Calculation Steps
- Enter the mean residence time in s.
- Enter the standard deviation of residence time distribution in s.
- Step 1: Compute flow distribution uniformity index (fdui).
- Read the flow distribution uniformity index (fdui) (dimensionless) from the results.
Engineering Summary
Calculate UV Reactor Flow Distribution Uniformity Index (FDUI) from Tracer Residence Time Distribution
Frequently Asked Questions
What does this calculator calculate?
The UV Reactor Flow Distribution Uniformity Index (FDUI) from Tracer Residence Time Distribution calculator estimates Flow Distribution Uniformity Index (FDUI) based on the input parameters you provide
Why is mean residence time important in this calculation?
mean residence time is directly proportional to flow distribution uniformity index (fdui). When you enter mean residence time in s, the calculator uses it in the engineering formula to compute the output
How should I interpret the result flow distribution uniformity index (fdui)?
The calculator outputs flow distribution uniformity index (fdui) in dimensionless. The result is computed directly from the input values using the defined engineering formula
What units should I use for the inputs?
Enter each value in the units shown next to the input field: Mean Residence Time (s), Standard Deviation of Residence Time Distribution (s). Make sure all inputs use the specified units for consistent results
What assumptions does this calculator use?
This calculator uses automatically validated engineering formulas. Results are approximate and should be validated against site-specific conditions, applicable codes, and professional engineering judgment
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