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Integrated BIM tools, including Revit, AutoCAD, and Civil 3D
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Transcript
00:04
In info,
00:04
water pro water quality modeling allows you
00:07
to perform different types of quality analyses.
00:09
Each with specific options that you can set before running a simulation
00:14
info. Water pro runs water quality analyses.
00:17
In conjunction with hydraulic simulations as part of the standard simulation.
00:21
As with other simulations.
00:23
The results of water quality analyses can be viewed as reports or graphs.
00:28
You can access the water quality settings from the simulation options.
00:31
Dialogue in the quality tab
00:34
there are different types of water quality models
00:36
that you can set up and run simulations for
00:39
depending on which analysis type you
00:41
select pertinent fields become available for editing
00:45
for best results.
00:47
When you are setting up any of these water quality options,
00:49
it is recommended that the quality time step should be
00:52
set at 1/10 of the hydraulic time step or smaller
00:56
chemical slash temp
00:58
trace the water temperature or trace the movement of
01:00
a reactive or non reactive substance such as chlorine
01:04
nitrates, sodium
01:06
or fluoride.
01:08
The temperature modeling capability can be effectively used if the temperature
01:12
of the pipe can be considered at a constant value.
01:16
Water age
01:17
calculates the water age over time in an extended period simulation analysis.
01:23
No additional parameters are required.
01:25
Water age is the time spent by a parcel of water in the network.
01:29
New water entering the network from reservoirs or
01:32
source nodes enters with an age of zero.
01:35
Water gets one hour older for every hour of the run
01:38
and is a good guide for quality in the zone.
01:40
As most aging occurs in the tanks,
01:43
source trace
01:45
tracks the percentage of water reaching any node in the network
01:48
that had its origin at a particular node over time.
01:51
Technically,
01:52
the source node can be any node in the
01:54
network but primarily source nodes are tanks or reservoirs.
01:59
Rarely would a junction be used as a source. But it is possible
02:03
internally,
02:04
the program treats the source node as a constant source of a
02:07
non reacting constituent that enters the network with a concentration of 100
02:12
multitrace.
02:14
Multiple source tracing tracks the percentage of water reaching any node in the
02:18
network that had its origin at a particular set of nodes over time.
02:23
As with the source trace,
02:24
the source nodes can be any node in
02:26
the network but are typically tanks or reservoirs.
02:30
And again,
02:30
the nodes are treated as a constant source of a non
02:33
reacting constituent that enters the network with a concentration of 100.
02:38
The multitrace method is different because it is a batch process that
02:42
runs multiple and separate source trace analyses for each individual trace.
02:47
It is not a simultaneous solution of multiple source traces.
02:51
It is therefore possible that the combined traces do not fully satisfy continuity,
02:55
especially with tanks that experience both incoming and outgoing flows.
03:00
The total percentage of water combined from each source may not total 100 per cent.
03:06
Advanced.
03:07
This method is used to select a multi
03:09
species model
03:11
and requires an additional license to run
03:14
depending on the node on which you want to run a water quality simulation.
03:18
There are other options you can set.
03:20
These are found in the model explorer tools dropdown
03:24
system reaction for pipes and tanks
03:27
defines the way in which a system reacts with chemicals and propagates them
03:32
tank, mixing controls the water quality leaving a tank.
03:36
You can set bulk coefficients to reflect the rate at which a chemical
03:39
grows or decays due to reactions in the bulk flow of water.
03:43
Over time.
03:45
W coefficients reflect the rate at which a chemical decays
03:47
due to reactions with the pipe walls over time.
03:51
Initial water quality
03:53
allows source concentrations and initial conditions to be defined.
03:57
The initial conditions,
03:58
initial chemical concentrations or water age greatly impact the accuracy
04:03
of the model results at the start of a simulation
04:06
quality source
04:08
allows source concentrations to be defined.
04:11
In addition, three other types of boosters are available.
04:14
Mass booster adds a fixed mass flow to that
04:17
entering the node from other points in the network
04:20
flow pace.
04:21
Booster adds a fixed concentration to that resulting from the mixing of
04:25
all inflow to the node from other points in the network.
04:29
Set point booster fixes the concentration of any flow leaving the node as long
04:33
as the concentration resulting from all inflow to the node is below the set point
04:40
tank. Mixing
04:41
select a tank mixing method for the simulation
04:44
complete
04:46
all water that enters a tank is instantaneously and
04:49
completely mixed with the water already in the tank
04:52
to compartment.
04:54
The available storage volume in a tank is divided into two compartments,
04:58
both of which are assumed completely mixed
05:01
water entering the tank mixes with the water in the first compartment.
05:05
If this compartment is full overflow is sent to the
05:08
second compartment and it completely mixes with that water.
05:11
When water leaves the tank,
05:13
it exits from the first compartment which if full receives
05:17
an equivalent amount of water from the second compartment.
05:20
First in first out
05:22
fifo
05:23
there is no mixing of water during its residents time in a tank,
05:27
water parcels move through the tank in a segregated fashion where
05:30
the first parcel to enter is also the first to leave.
05:33
Last in first out lifo
05:36
there is no mixing of water during its residents time in a tank.
05:40
The water stacks up water enters and leaves the tank on the bottom.
05:46
Water quality.
05:47
Simulations take a significant amount of time to reach a steady state condition.
05:51
So you may need to set them to run for 38 or even 12 weeks.
05:56
In the result graph you are looking for
05:58
a steady repeating pattern once stability occurs.
Video transcript
00:04
In info,
00:04
water pro water quality modeling allows you
00:07
to perform different types of quality analyses.
00:09
Each with specific options that you can set before running a simulation
00:14
info. Water pro runs water quality analyses.
00:17
In conjunction with hydraulic simulations as part of the standard simulation.
00:21
As with other simulations.
00:23
The results of water quality analyses can be viewed as reports or graphs.
00:28
You can access the water quality settings from the simulation options.
00:31
Dialogue in the quality tab
00:34
there are different types of water quality models
00:36
that you can set up and run simulations for
00:39
depending on which analysis type you
00:41
select pertinent fields become available for editing
00:45
for best results.
00:47
When you are setting up any of these water quality options,
00:49
it is recommended that the quality time step should be
00:52
set at 1/10 of the hydraulic time step or smaller
00:56
chemical slash temp
00:58
trace the water temperature or trace the movement of
01:00
a reactive or non reactive substance such as chlorine
01:04
nitrates, sodium
01:06
or fluoride.
01:08
The temperature modeling capability can be effectively used if the temperature
01:12
of the pipe can be considered at a constant value.
01:16
Water age
01:17
calculates the water age over time in an extended period simulation analysis.
01:23
No additional parameters are required.
01:25
Water age is the time spent by a parcel of water in the network.
01:29
New water entering the network from reservoirs or
01:32
source nodes enters with an age of zero.
01:35
Water gets one hour older for every hour of the run
01:38
and is a good guide for quality in the zone.
01:40
As most aging occurs in the tanks,
01:43
source trace
01:45
tracks the percentage of water reaching any node in the network
01:48
that had its origin at a particular node over time.
01:51
Technically,
01:52
the source node can be any node in the
01:54
network but primarily source nodes are tanks or reservoirs.
01:59
Rarely would a junction be used as a source. But it is possible
02:03
internally,
02:04
the program treats the source node as a constant source of a
02:07
non reacting constituent that enters the network with a concentration of 100
02:12
multitrace.
02:14
Multiple source tracing tracks the percentage of water reaching any node in the
02:18
network that had its origin at a particular set of nodes over time.
02:23
As with the source trace,
02:24
the source nodes can be any node in
02:26
the network but are typically tanks or reservoirs.
02:30
And again,
02:30
the nodes are treated as a constant source of a non
02:33
reacting constituent that enters the network with a concentration of 100.
02:38
The multitrace method is different because it is a batch process that
02:42
runs multiple and separate source trace analyses for each individual trace.
02:47
It is not a simultaneous solution of multiple source traces.
02:51
It is therefore possible that the combined traces do not fully satisfy continuity,
02:55
especially with tanks that experience both incoming and outgoing flows.
03:00
The total percentage of water combined from each source may not total 100 per cent.
03:06
Advanced.
03:07
This method is used to select a multi
03:09
species model
03:11
and requires an additional license to run
03:14
depending on the node on which you want to run a water quality simulation.
03:18
There are other options you can set.
03:20
These are found in the model explorer tools dropdown
03:24
system reaction for pipes and tanks
03:27
defines the way in which a system reacts with chemicals and propagates them
03:32
tank, mixing controls the water quality leaving a tank.
03:36
You can set bulk coefficients to reflect the rate at which a chemical
03:39
grows or decays due to reactions in the bulk flow of water.
03:43
Over time.
03:45
W coefficients reflect the rate at which a chemical decays
03:47
due to reactions with the pipe walls over time.
03:51
Initial water quality
03:53
allows source concentrations and initial conditions to be defined.
03:57
The initial conditions,
03:58
initial chemical concentrations or water age greatly impact the accuracy
04:03
of the model results at the start of a simulation
04:06
quality source
04:08
allows source concentrations to be defined.
04:11
In addition, three other types of boosters are available.
04:14
Mass booster adds a fixed mass flow to that
04:17
entering the node from other points in the network
04:20
flow pace.
04:21
Booster adds a fixed concentration to that resulting from the mixing of
04:25
all inflow to the node from other points in the network.
04:29
Set point booster fixes the concentration of any flow leaving the node as long
04:33
as the concentration resulting from all inflow to the node is below the set point
04:40
tank. Mixing
04:41
select a tank mixing method for the simulation
04:44
complete
04:46
all water that enters a tank is instantaneously and
04:49
completely mixed with the water already in the tank
04:52
to compartment.
04:54
The available storage volume in a tank is divided into two compartments,
04:58
both of which are assumed completely mixed
05:01
water entering the tank mixes with the water in the first compartment.
05:05
If this compartment is full overflow is sent to the
05:08
second compartment and it completely mixes with that water.
05:11
When water leaves the tank,
05:13
it exits from the first compartment which if full receives
05:17
an equivalent amount of water from the second compartment.
05:20
First in first out
05:22
fifo
05:23
there is no mixing of water during its residents time in a tank,
05:27
water parcels move through the tank in a segregated fashion where
05:30
the first parcel to enter is also the first to leave.
05:33
Last in first out lifo
05:36
there is no mixing of water during its residents time in a tank.
05:40
The water stacks up water enters and leaves the tank on the bottom.
05:46
Water quality.
05:47
Simulations take a significant amount of time to reach a steady state condition.
05:51
So you may need to set them to run for 38 or even 12 weeks.
05:56
In the result graph you are looking for
05:58
a steady repeating pattern once stability occurs.
In InfoWater Pro, Water Quality Modeling allows you to perform different types of quality analyses, each with specific options that you can set before running a simulation.
InfoWater Pro runs water quality analyses in conjunction with hydraulic simulations as part of the standard simulation. As with other simulations, the results of water quality analyses can be viewed as reports or graphs.
To access the Water Quality settings:
Fields become available for editing depending on the analysis selection.
Note: For best results, when you are setting up any of these water quality options, it is recommended that the Quality Timestep should be set at 1/10th of the hydraulic timestep or smaller.
The different types of water quality models include:
Depending on the node on which you want to run a water quality simulation, there are other options you can set. These are found in the Model Explorer Tools drop-down:
IMPORTANT: Water quality simulations take a significant amount of time to reach a steady state condition, so you may set them to run for 3, 8, or even 12 weeks. In the result graph, you are looking for a steady repeating pattern once stability occurs.
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