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Transcript
00:04
Understanding the various types of water sources
00:06
within a water distribution network is essential.
00:09
When modeling a network
00:11
network modeling is generally concerned with the clean water network,
00:15
everything downstream of a water treatment works and may not contain raw water.
00:20
However, there may be scenarios where you need to model the entire process.
00:25
Many sources will have legal or resource related abstraction limits which
00:29
may impact how a network is configured in different demand periods
00:35
without known constraints, raw water is often considered infinite for modeling.
00:40
However, the sustainable management of a water source is vital to those.
00:44
It is serving as well as for the health of the surrounding ecosystem.
00:49
Raw water can be categorized as surface water such as reservoirs and rivers.
00:55
This is typically a large open structure man-made or naturally occurring
00:60
and contains untreated water.
01:04
When modeling surface water uses a fixed head
01:07
node which represents an infinite supply of water
01:11
in WS pro service reservoirs or sr refer to manmade tanks that store treated water.
01:19
This includes water towers,
01:22
a reservoir is anything that can hold a finite amount of water.
01:25
And along with service reservoirs and water towers,
01:28
it can also include contact tanks,
01:32
service reservoirs can contain multiple compartments and
01:35
are often averaged into one object.
01:38
However, if necessary, you can model the compartments separately and link them
01:44
because reservoirs typically supply the network via gravity.
01:48
They are situated at the highest point of a network.
01:51
An important measurement is the reservoir's top water level
01:55
or Twl which is the maximum gravity head.
01:58
It can provide to a downstream network.
02:01
Groundwater such as springs, wells or boreholes is another raw water source.
02:07
These are underground sources that require a pump to extract
02:10
and often have very few treatment processes applied to them.
02:13
Beyond chlorination,
02:16
they are more likely to have smaller
02:17
abstraction limits than surface water sources.
02:20
So they can be modeled as a well or fixed head node.
02:24
The most common source of water in a network model are water treatment works. Or WTW.
02:31
WTW may include the contact tank or reservoir as a reservoir object.
02:36
Output of the works can be modeled as a fixed head or flow into the service reservoir.
02:42
Alternatively, WTW is simplified to a fixed head node,
02:47
having an idea of which type of water source you are working
02:50
with is crucial in the modeling of a water supply network.
Video transcript
00:04
Understanding the various types of water sources
00:06
within a water distribution network is essential.
00:09
When modeling a network
00:11
network modeling is generally concerned with the clean water network,
00:15
everything downstream of a water treatment works and may not contain raw water.
00:20
However, there may be scenarios where you need to model the entire process.
00:25
Many sources will have legal or resource related abstraction limits which
00:29
may impact how a network is configured in different demand periods
00:35
without known constraints, raw water is often considered infinite for modeling.
00:40
However, the sustainable management of a water source is vital to those.
00:44
It is serving as well as for the health of the surrounding ecosystem.
00:49
Raw water can be categorized as surface water such as reservoirs and rivers.
00:55
This is typically a large open structure man-made or naturally occurring
00:60
and contains untreated water.
01:04
When modeling surface water uses a fixed head
01:07
node which represents an infinite supply of water
01:11
in WS pro service reservoirs or sr refer to manmade tanks that store treated water.
01:19
This includes water towers,
01:22
a reservoir is anything that can hold a finite amount of water.
01:25
And along with service reservoirs and water towers,
01:28
it can also include contact tanks,
01:32
service reservoirs can contain multiple compartments and
01:35
are often averaged into one object.
01:38
However, if necessary, you can model the compartments separately and link them
01:44
because reservoirs typically supply the network via gravity.
01:48
They are situated at the highest point of a network.
01:51
An important measurement is the reservoir's top water level
01:55
or Twl which is the maximum gravity head.
01:58
It can provide to a downstream network.
02:01
Groundwater such as springs, wells or boreholes is another raw water source.
02:07
These are underground sources that require a pump to extract
02:10
and often have very few treatment processes applied to them.
02:13
Beyond chlorination,
02:16
they are more likely to have smaller
02:17
abstraction limits than surface water sources.
02:20
So they can be modeled as a well or fixed head node.
02:24
The most common source of water in a network model are water treatment works. Or WTW.
02:31
WTW may include the contact tank or reservoir as a reservoir object.
02:36
Output of the works can be modeled as a fixed head or flow into the service reservoir.
02:42
Alternatively, WTW is simplified to a fixed head node,
02:47
having an idea of which type of water source you are working
02:50
with is crucial in the modeling of a water supply network.
Understanding the various types of water sources within a water distribution network is essential when modeling a network.
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