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Open the Calibrator app, and describe the three calibration modes and the other user interface options.
Type:
Tutorial
Length:
5 min.
Transcript
00:03
InfoWater Pro offers two model calibration tools: the Hydraulic Calibrator and the Water Quality (WQ) Calibrator.
00:15
Each of these tools can be accessed from the App menu.
00:19
Correlating pipe roughness coefficients between a hydraulic model and actual field conditions
00:26
is the most frequently used methodology for hydraulic calibration.
00:30
InfoWater Pro’s Calibrator app helps automate this process
00:35
using various physical and operational system characteristics that you define.
00:41
You access the Calibrator through the InfoWater Pro App Manager.
00:46
From the Mode menu, you can specify the type of calibration run you wish to perform: Steady State, Fire Flow Test, or Extended Period.
00:57
The available data tabs change based on the calibration mode.
01:02
From the Run menu, select Options to specify your Calibration Options,
01:08
including Measurement Units, Weighting Factors, Evaluation (or percentage difference) Threshold,
01:16
Termination Criteria, and Convergence Method.
01:20
The default Calibration Options and default Advanced GA Options maximize the efficiency and accuracy of the Calibrator tool.
01:31
These options should only be changed once you have a thorough understanding of each parameter.
01:37
The input data common for each calibration mode is the pipe Roughness Group.
01:44
On this tab, you can specify and assign pipe groups for determining pipe roughness coefficients during the calibration simulation.
01:54
A Roughness Group typically contains pipes of similar diameter, age,
01:59
or material within the same pressure zone—whose existing roughness coefficients will be adjusted by the Calibrator.
02:07
The Steady State mode is used to correlate known instantaneous field data to the specified model elements.
02:15
In addition to the Roughness Group, there are up to four other unique sets of information used in the Steady State mode:
02:24
Demand Group –
02:26
Demand groups are assigned in order to vary model demands within a specified scaling range to match some known field conditions.
02:35
Pipe Status –
02:37
Pipe status designates specific pipes whose initial open or closed status is unknown prior to calibration.
02:46
The Calibrator varies the status of a selected pipe or series of pipes to more accurately correlate the calibration.
02:54
Junction Pressure –
02:56
Field pressures for specific junction nodes are input into this information set.
03:02
These pressures are used as benchmarks during the calibration simulation and are adjusted to increase calibration accuracy.
03:12
Pipe Flow –
03:13
Flows measured in the system at specified model links—pipes, valves, pumps—are input into this information set.
03:23
These flows are used as benchmarks during the calibration simulation and are adjusted to increase calibration accuracy.
03:32
The Fire Flow Test mode is used to calibrate a model using flow and residual pressure data from hydrant flow tests.
03:41
It also uses pressure data measured simultaneously at other strategic locations
03:46
throughout the distribution system during the same flow test.
03:51
In addition to the Roughness Group, the Fire-Flow Measurement tab allows a host of field measurement data
03:58
and representative model data sets to be specified.
04:02
The data sets are those with the active demands, tanks, reservoirs, and controls,
04:09
representing the system conditions at the time of the hydrant flow tests.
04:14
The Extended Period mode is similar to Steady State mode, except that the times at which field measurements were taken can also be input.
04:23
In addition to the Roughness Group, observed Junction Pressure, Pipe (Link) Flow, and Tank Head/Level data
04:33
can be input alongside the times at which the observations were recorded.
04:38
To run the calibrator simulation, from the Run menu, select Start.
04:44
The progress and performance of the simulation can be monitored on the Run tab.
04:50
Once the calibrator simulation is complete, the Run Summary tab summarizes the output results.
04:57
The results from the calibrator simulation can be exported to existing or new model Pipe, Demand, or Control Data Sets, as applicable.
Video transcript
00:03
InfoWater Pro offers two model calibration tools: the Hydraulic Calibrator and the Water Quality (WQ) Calibrator.
00:15
Each of these tools can be accessed from the App menu.
00:19
Correlating pipe roughness coefficients between a hydraulic model and actual field conditions
00:26
is the most frequently used methodology for hydraulic calibration.
00:30
InfoWater Pro’s Calibrator app helps automate this process
00:35
using various physical and operational system characteristics that you define.
00:41
You access the Calibrator through the InfoWater Pro App Manager.
00:46
From the Mode menu, you can specify the type of calibration run you wish to perform: Steady State, Fire Flow Test, or Extended Period.
00:57
The available data tabs change based on the calibration mode.
01:02
From the Run menu, select Options to specify your Calibration Options,
01:08
including Measurement Units, Weighting Factors, Evaluation (or percentage difference) Threshold,
01:16
Termination Criteria, and Convergence Method.
01:20
The default Calibration Options and default Advanced GA Options maximize the efficiency and accuracy of the Calibrator tool.
01:31
These options should only be changed once you have a thorough understanding of each parameter.
01:37
The input data common for each calibration mode is the pipe Roughness Group.
01:44
On this tab, you can specify and assign pipe groups for determining pipe roughness coefficients during the calibration simulation.
01:54
A Roughness Group typically contains pipes of similar diameter, age,
01:59
or material within the same pressure zone—whose existing roughness coefficients will be adjusted by the Calibrator.
02:07
The Steady State mode is used to correlate known instantaneous field data to the specified model elements.
02:15
In addition to the Roughness Group, there are up to four other unique sets of information used in the Steady State mode:
02:24
Demand Group –
02:26
Demand groups are assigned in order to vary model demands within a specified scaling range to match some known field conditions.
02:35
Pipe Status –
02:37
Pipe status designates specific pipes whose initial open or closed status is unknown prior to calibration.
02:46
The Calibrator varies the status of a selected pipe or series of pipes to more accurately correlate the calibration.
02:54
Junction Pressure –
02:56
Field pressures for specific junction nodes are input into this information set.
03:02
These pressures are used as benchmarks during the calibration simulation and are adjusted to increase calibration accuracy.
03:12
Pipe Flow –
03:13
Flows measured in the system at specified model links—pipes, valves, pumps—are input into this information set.
03:23
These flows are used as benchmarks during the calibration simulation and are adjusted to increase calibration accuracy.
03:32
The Fire Flow Test mode is used to calibrate a model using flow and residual pressure data from hydrant flow tests.
03:41
It also uses pressure data measured simultaneously at other strategic locations
03:46
throughout the distribution system during the same flow test.
03:51
In addition to the Roughness Group, the Fire-Flow Measurement tab allows a host of field measurement data
03:58
and representative model data sets to be specified.
04:02
The data sets are those with the active demands, tanks, reservoirs, and controls,
04:09
representing the system conditions at the time of the hydrant flow tests.
04:14
The Extended Period mode is similar to Steady State mode, except that the times at which field measurements were taken can also be input.
04:23
In addition to the Roughness Group, observed Junction Pressure, Pipe (Link) Flow, and Tank Head/Level data
04:33
can be input alongside the times at which the observations were recorded.
04:38
To run the calibrator simulation, from the Run menu, select Start.
04:44
The progress and performance of the simulation can be monitored on the Run tab.
04:50
Once the calibrator simulation is complete, the Run Summary tab summarizes the output results.
04:57
The results from the calibrator simulation can be exported to existing or new model Pipe, Demand, or Control Data Sets, as applicable.
InfoWater Pro offers two model calibration tools: the Hydraulic Calibrator and the Water Quality (WQ) Calibrator.
Each can be accessed from the App Manager.
Most frequently used methodology for hydraulic calibration is correlating pipe roughness coefficients between hydraulic model and actual field conditions.
Calibrator app helps automate this process using various definable physical and operational system characteristics.
Use to specify type of calibration run: Steady State, Fire Flow Test, or Extended Period.
Available data tabs change based on calibration mode.
Select Run > Options to specify Calibration Options, including Measurement Units, Weighting Factors, Evaluation (or percentage difference) Threshold, Termination Criteria, and Convergence Method.
Default Calibration Options and Advanced GA Options maximize efficiency and accuracy of Calibrator—should only be changed with thorough understanding of each parameter.
The input data common to each calibration mode is pipe roughness group.
On Roughness Group tab, specify and assign pipe groups for determining pipe roughness coefficients during calibration simulation.
Roughness Group typically contains pipes of similar diameter, age, or material within same pressure zone—with existing roughness coefficients to be adjusted by Calibrator.
Used to correlate known instantaneous field data to specified model elements.
In addition to Roughness Group, up to four more unique sets of information used in Steady State mode:
Used to calibrate a model using flow and residual pressure data from hydrant flow tests.
Also uses pressure data measured simultaneously at other strategic locations throughout distribution system during same flow test.
In addition to Roughness Group, can use Fire-Flow Measurement tab to specify field measurement data and representative model data sets.
Data sets are those with active demands, tanks, reservoirs, and controls, representing system conditions at time of hydrant flow tests.
Similar to Steady State mode, except that times of field measurements can also be input.
In addition to Roughness Group, can input observed Junction Pressure, Pipe (Link) Flow, and Tank Head/Level data alongside times observations were recorded.
Select Run > Start.
Progress and performance of simulation can be monitored on Run tab.
Once complete, select Run Summary tab for summary of output results.
Results from Calibrator simulation can be exported to existing or new model pipe, demand, or control data sets, as applicable.
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