Any referenced datasets can be downloaded from "Module downloads" in the module overview.
Transcript
00:04
A well set up firef flow model can be used
00:06
to identify hydraulic weaknesses due to proposed operational changes.
00:11
In this exercise,
00:12
you assign firef flow demands and run a standard firef flow analysis
00:17
to begin double click the desired project dot APR X file to open Argi
00:22
pro.
00:23
Once the project starts,
00:25
click the info water pro tab to open the info water pro ribbon
00:29
in the project panel, click initialize,
00:33
you will perform the firef flow analysis only on
00:35
the pipes proposed to be installed by 2030.
00:38
In the model explorer,
00:39
use the scenario dropdown list to select the
00:47
on the info water pro ribbon in the domain panel, click domain manager
00:53
in the domain manager select DB query as the element source,
00:58
select pipes 2030 from the drop down list and then click add
01:04
now select the pipe's existing query from the dropdown list and click remove
01:11
the domain now contains only the pipes proposed to be installed by 2030.
01:16
Click add connecting nodes to add all nodes
01:18
connecting to the proposed pipes to the domain.
01:22
Firef demands will be added to these junctions to determine
01:25
if the proposed area can sufficiently deliver firef flows.
01:29
Click close to close the domain manager,
01:33
you can now set the firef flow value to test for the selected group of pipes
01:37
on the info water pro ribbon in the edit panel, click group editing
01:43
in the group editing dialogue in the desired element selection group.
01:46
Ensure that domain is selected.
01:50
Also ensure that firef flow is selected in the element list.
01:54
These should be selected by default
01:58
in the applicable attributes group, set the FIREF flow GPM value to 750
02:03
then click apply,
02:06
click OK. To confirm then close to close the group editing window.
02:11
It is now time to run the simulation
02:14
on the info water pro ribbon in the analysis panel, click run
02:20
in the run manager on the standard tab.
02:22
Select the base option from the drop down lists for report options,
02:26
simulation options and time setting.
02:29
Click the firef flow tab.
02:32
Here you set the conditions for the firef flow analysis.
02:37
When you enter a time or set a duration,
02:39
you are technically creating an extended period simulation.
02:42
However,
02:43
this firef flow time setting will run a
02:45
standard simulation for a specified number of time steps
02:48
only once it reaches the time specified. Will it apply the firef flow?
02:53
Another caveat when doing this is that you lose control
02:56
of your boundary conditions such as your tank levels,
02:59
which pumps are operating,
03:01
click select time
03:02
and then in the pop-up, click and drag the slider to set the time to 10 hours.
03:07
This means that the firef flow demands are
03:09
not applied until hour 10 of the simulation.
03:13
Everything before that time is considered to be a standard simulation.
03:17
Click. OK.
03:19
Click run.
03:21
The Firefly report opens automatically in the report manager.
03:26
If you are prompted to switch to the most recent output data, click yes.
03:31
In this report,
03:31
you can find answers to some general firef flow questions
03:34
such as can firef flows be supplied for the entire model
03:39
to answer this question. Look at the residual pressure column,
03:42
right. Click the column header and select sort of sending
03:47
the lowest value is more than 20 psi which is
03:50
the residual pressure that was set in the run manager.
03:52
Firef flow tab.
03:54
Therefore, you can answer that yes, firef flows can be supplied here.
03:58
Keep in mind that these results are very limited because again,
04:01
the firef flow demands are not applied until the hour
04:04
is specified and you lose control over your boundary conditions.
04:08
With these limitations in mind,
04:10
it may be preferable to create a new scenario with the boundary conditions
04:14
you want already specified and then exclude the time settings and duration.
04:19
Furthermore, if you want to see results from hydrants during multiple times steps,
04:23
then you would use the multi
04:24
firef flow tab for that capability.
04:27
When you are finished, close, the report manager
00:04
A well set up firef flow model can be used
00:06
to identify hydraulic weaknesses due to proposed operational changes.
00:11
In this exercise,
00:12
you assign firef flow demands and run a standard firef flow analysis
00:17
to begin double click the desired project dot APR X file to open Argi
00:22
pro.
00:23
Once the project starts,
00:25
click the info water pro tab to open the info water pro ribbon
00:29
in the project panel, click initialize,
00:33
you will perform the firef flow analysis only on
00:35
the pipes proposed to be installed by 2030.
00:38
In the model explorer,
00:39
use the scenario dropdown list to select the
00:47
on the info water pro ribbon in the domain panel, click domain manager
00:53
in the domain manager select DB query as the element source,
00:58
select pipes 2030 from the drop down list and then click add
01:04
now select the pipe's existing query from the dropdown list and click remove
01:11
the domain now contains only the pipes proposed to be installed by 2030.
01:16
Click add connecting nodes to add all nodes
01:18
connecting to the proposed pipes to the domain.
01:22
Firef demands will be added to these junctions to determine
01:25
if the proposed area can sufficiently deliver firef flows.
01:29
Click close to close the domain manager,
01:33
you can now set the firef flow value to test for the selected group of pipes
01:37
on the info water pro ribbon in the edit panel, click group editing
01:43
in the group editing dialogue in the desired element selection group.
01:46
Ensure that domain is selected.
01:50
Also ensure that firef flow is selected in the element list.
01:54
These should be selected by default
01:58
in the applicable attributes group, set the FIREF flow GPM value to 750
02:03
then click apply,
02:06
click OK. To confirm then close to close the group editing window.
02:11
It is now time to run the simulation
02:14
on the info water pro ribbon in the analysis panel, click run
02:20
in the run manager on the standard tab.
02:22
Select the base option from the drop down lists for report options,
02:26
simulation options and time setting.
02:29
Click the firef flow tab.
02:32
Here you set the conditions for the firef flow analysis.
02:37
When you enter a time or set a duration,
02:39
you are technically creating an extended period simulation.
02:42
However,
02:43
this firef flow time setting will run a
02:45
standard simulation for a specified number of time steps
02:48
only once it reaches the time specified. Will it apply the firef flow?
02:53
Another caveat when doing this is that you lose control
02:56
of your boundary conditions such as your tank levels,
02:59
which pumps are operating,
03:01
click select time
03:02
and then in the pop-up, click and drag the slider to set the time to 10 hours.
03:07
This means that the firef flow demands are
03:09
not applied until hour 10 of the simulation.
03:13
Everything before that time is considered to be a standard simulation.
03:17
Click. OK.
03:19
Click run.
03:21
The Firefly report opens automatically in the report manager.
03:26
If you are prompted to switch to the most recent output data, click yes.
03:31
In this report,
03:31
you can find answers to some general firef flow questions
03:34
such as can firef flows be supplied for the entire model
03:39
to answer this question. Look at the residual pressure column,
03:42
right. Click the column header and select sort of sending
03:47
the lowest value is more than 20 psi which is
03:50
the residual pressure that was set in the run manager.
03:52
Firef flow tab.
03:54
Therefore, you can answer that yes, firef flows can be supplied here.
03:58
Keep in mind that these results are very limited because again,
04:01
the firef flow demands are not applied until the hour
04:04
is specified and you lose control over your boundary conditions.
04:08
With these limitations in mind,
04:10
it may be preferable to create a new scenario with the boundary conditions
04:14
you want already specified and then exclude the time settings and duration.
04:19
Furthermore, if you want to see results from hydrants during multiple times steps,
04:23
then you would use the multi
04:24
firef flow tab for that capability.
04:27
When you are finished, close, the report manager
Required for course completion
A well set up fireflow model can be used to identify hydraulic weaknesses due to proposed operational changes.
To perform the fireflow analysis only on the pipes proposed to be installed by 2030:
The domain now contains only the pipes proposed to be installed by 2030.
Fireflow demands will be added to these junctions to determine if the proposed area can sufficiently deliver fireflows.
To set the fireflow value to test for the selected group of pipes:
To configure and run the fireflow simulation:
IMPORTANT: While setting the conditions for the fireflow analysis on the Fireflow tab, be aware that when you enter a time or set a duration, you are technically creating an extended period simulation. However, this fireflow time setting will run a standard simulation for a specified number of timesteps. Only once it reaches the time specified will it apply the fireflow. Another caveat when doing this is that you lose control of your boundary conditions, such as your tank levels, which pumps are operating.
NOTE: The fireflow demands are not applied until hour 10 of the simulation. Everything before that time is considered to be a "standard" simulation.
The Fireflow report opens automatically in the Report Manager.
The lowest value is more than 20 psi, which is the residual pressure that was set in the Run Manager Fireflow tab. Therefore, fireflows can be supplied here.
IMPORTANT: These results are very limited because the fireflow demands are not applied until the hour specified, and you lose control over your boundary conditions. With these limitations in mind, it may be preferable to create a new scenario with the boundary conditions you want already specified, and then exclude the time settings and duration.
