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Integrated BIM tools, including Revit, AutoCAD, and Civil 3D
Professional CAD/CAM tools built on Inventor and AutoCAD
Transcript
00:04
A multi
00:05
fire flow analysis is an extended period simulation that allows
00:08
you to study water distribution system performance under the condition.
00:11
When multiple fire hydrants are opened simultaneously,
00:16
you can define multiple fire demands over a period of time
00:20
to begin.
00:21
Double click, the desired project dot
00:23
ARX file to open or
00:24
GIS
00:24
pro
00:26
once the project starts,
00:28
click the info water pro tab to open the info water pro ribbon
00:32
in the project panel, click initialize
00:35
on the info water pro ribbon in the domain panel.
00:38
Click clear domain to clear any previous selections
00:42
from the analysis panel. Click run to open the run manager.
00:46
You can set up the multi firef flow analysis from the multi
00:49
firef flow tab
00:52
to set the start time,
00:53
click select time and then in the pop-up click and
00:56
drag the slider to set the time to 10 hours.
00:59
Click. OK.
01:01
Now you need to add one or more junctions or hydrants to test
01:06
click, add junctions
01:09
in the map loca junctions J 1140 and J 1198.
01:16
To help locate these junctions,
01:18
you can enter the junction IDS in the model explorer attribute tab ID field.
01:22
And then click zoom to active element.
01:25
These two junctions are beside each other in zone four,
01:29
select both junctions then right click in the map area and select enter
01:35
back in the run manager
01:37
enable fire duration and then enter 240 in the duration field.
01:43
The test is now set to run for four hours starting at 10 o'clock.
01:48
Click run
01:51
the multiple firef flow report opens automatically in the report manager.
01:55
If you are prompted to switch to the most recent output data, click yes.
02:00
Using the time bar at the top of the
02:02
report step through the four hours of the simulation.
02:06
You can see that the lowest value in the
02:07
residual pressure column is more than the 20 psi
02:10
that was set in the run manager firef flow tab for each of these hydrants at each hour.
02:16
Therefore, firef flows can be supplied here.
02:19
Be aware that you can use the multi firef flow tool and run an
02:23
S on however many hydrants you want but including too many
02:26
will make it harder to meet the required firef flows.
02:29
This is why this demonstration includes only two hydrants.
02:33
In fact, you can run a multi firef flow ps using only one hydrant to apply the duration
02:38
and see what happens each additional hour. The firef flow demand is applied
02:43
to view the reports and graphs from this multi
02:46
firef flow simulation.
02:47
In the report manager. Click new
02:50
in the output slash report graph dialogue under available output sources,
02:55
select active multiple firef flow.
02:58
The outputs available for multiple firef flow
03:00
analyses are the same as those for standard
03:03
S simulations
03:05
view and open any of the options under the tabular report or graph report tabs.
03:11
When you are finished viewing the reports and graphs,
03:13
click hide to close the report manager.
Video transcript
00:04
A multi
00:05
fire flow analysis is an extended period simulation that allows
00:08
you to study water distribution system performance under the condition.
00:11
When multiple fire hydrants are opened simultaneously,
00:16
you can define multiple fire demands over a period of time
00:20
to begin.
00:21
Double click, the desired project dot
00:23
ARX file to open or
00:24
GIS
00:24
pro
00:26
once the project starts,
00:28
click the info water pro tab to open the info water pro ribbon
00:32
in the project panel, click initialize
00:35
on the info water pro ribbon in the domain panel.
00:38
Click clear domain to clear any previous selections
00:42
from the analysis panel. Click run to open the run manager.
00:46
You can set up the multi firef flow analysis from the multi
00:49
firef flow tab
00:52
to set the start time,
00:53
click select time and then in the pop-up click and
00:56
drag the slider to set the time to 10 hours.
00:59
Click. OK.
01:01
Now you need to add one or more junctions or hydrants to test
01:06
click, add junctions
01:09
in the map loca junctions J 1140 and J 1198.
01:16
To help locate these junctions,
01:18
you can enter the junction IDS in the model explorer attribute tab ID field.
01:22
And then click zoom to active element.
01:25
These two junctions are beside each other in zone four,
01:29
select both junctions then right click in the map area and select enter
01:35
back in the run manager
01:37
enable fire duration and then enter 240 in the duration field.
01:43
The test is now set to run for four hours starting at 10 o'clock.
01:48
Click run
01:51
the multiple firef flow report opens automatically in the report manager.
01:55
If you are prompted to switch to the most recent output data, click yes.
02:00
Using the time bar at the top of the
02:02
report step through the four hours of the simulation.
02:06
You can see that the lowest value in the
02:07
residual pressure column is more than the 20 psi
02:10
that was set in the run manager firef flow tab for each of these hydrants at each hour.
02:16
Therefore, firef flows can be supplied here.
02:19
Be aware that you can use the multi firef flow tool and run an
02:23
S on however many hydrants you want but including too many
02:26
will make it harder to meet the required firef flows.
02:29
This is why this demonstration includes only two hydrants.
02:33
In fact, you can run a multi firef flow ps using only one hydrant to apply the duration
02:38
and see what happens each additional hour. The firef flow demand is applied
02:43
to view the reports and graphs from this multi
02:46
firef flow simulation.
02:47
In the report manager. Click new
02:50
in the output slash report graph dialogue under available output sources,
02:55
select active multiple firef flow.
02:58
The outputs available for multiple firef flow
03:00
analyses are the same as those for standard
03:03
S simulations
03:05
view and open any of the options under the tabular report or graph report tabs.
03:11
When you are finished viewing the reports and graphs,
03:13
click hide to close the report manager.
A multi-fireflow analysis is an extended period simulation that allows you to study water distribution system performance under the condition when multiple fire hydrants are opened simultaneously. You can define multiple fire demands over a period of time.
To define a multi-fireflow analysis:
Now you need to add one or more junctions (or hydrants) to test.
The test is now set to run for 4 hours, starting at 10:00.
The Multiple Fireflow report opens automatically in the Report Manager.
The lowest value in the Residual Pressure column is more than the 20 psi that was set in the Run Manager Fireflow tab for each of these hydrants at each hour. Therefore, fireflows can be supplied here.
IMPORTANT: The Multi-Fireflow tool can be used to run an EPS on however many hydrants you want, but including too many will make it harder to meet the required fireflows. This is why this demonstration includes only two hydrants. In fact, you can run a Multi-Fireflow EPS using only one hydrant to apply the duration and see what happens each additional hour the fireflow demand is applied.
To view the reports and graphs from this Multi-Fireflow simulation:
Note: The outputs available for Multi-fireflow analyses are the same as those for Standard EPS simulations.
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