My First Tutorial in WaterCad Handout (1)

8/20/2019 My First Tutorial in WaterCad Handout (1)

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WaterWater Pipe NetworksPipe Networks

First Tutorial inFirst Tutorial in WaterCadWaterCadIntroduction and Data EntryIntroduction and Data Entry

By MohamedBy Mohamed ElgamalElgamal

GETTING STARTEDGETTING STARTED

WATERCADWATERCAD


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Icons ofIcons of WaterCadWaterCad

WaterCADWaterCAD FeaturesFeatures

SteadySteady--State AnalysisState Analysis

TRexTRex – – Extract Elevations from multiple digital formatsExtract Elevations from multiple digital formats

ExtendedExtended--Period Simulation (EPS)Period Simulation (EPS)

ConstituentConstituent--Concentration AnalysisConcentration Analysis

Water Water--Age Analysis Age Analysis

VariableVariable--Speed PumpingSpeed Pumping

PressurePressure--Dependent DemandsDependent Demands Scenario ModelingScenario Modeling


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NETWORK PRESENTATIONNETWORK PRESENTATION

AND MAIN ELEMENTS AND MAIN ELEMENTSNetwork and Transmission Lines areNetwork and Transmission Lines are

Represented inRepresented in WaterCadWaterCad as Links and Nodes:as Links and Nodes:

Node Node

Link

Nodes Represent Links Represent

PipesJunctions

Pumps

Reservoirs

Tanks

Valves

Important Valves InImportant Valves In WaterCadWaterCadValve Symbol in

WaterCad

Application

To isolate part of the

system

To release air trapped in the

system

To prevent backflow

To limit the flow to amaximum value

To limit the d/s pressure to a

maximum value

To limit the u/s pressure to

drop below a minimum

value

Isolation Valve

Air Valve

Check Valve

Flow ControlValve (FCV)

Pressure Reducing

Valve (PRV)

Pressure Sustaining

Valve (PSV)


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How To Resolve the DrawingHow To Resolve the Drawing

Haziness Bug inHaziness Bug in WaterCadWaterCad

For Window XP:

Before browsing shoe hidden files and folders of windows (tools-folder option-

view-show hidden files and folders)

1-Browse to

C:\Documents and Settings\XXXXXXX\Application Data\Bentley\ WaterGEMS

\8\

Where XXXXX is your user name.

You must close the program before you continue.

2-Open the( Haestad.Framework.Application.GlobalUserOptions.XML) file with

Notepad. Search for the word “allowpartialredraw” in the file, change its setting

from “true” to “false” then press Ctrl+S to save the file.

Done

For Window 7:

Before browsing shoe hidden files and folders of windows (tools-folder option-

view-show hidden files and folders)

1-Browse to

C:\users\username\AppData\Roaming\Bentley\WaterGEMS\8\

Haestad .Framework . Application.GlobalUserOptions. xml

You must close the program before you continue.

2-Open the( Haestad.Framework.Application.GlobalUserOptions.XML) file with

Notepad. Search for the word “allowpartialredraw” in the file, change its setting

from “true” to “false” then press Ctrl+S to save the file.

Done

How To Resolve the DrawingHow To Resolve the Drawing

Haziness Bug inHaziness Bug in WaterCadWaterCad


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First Tutorial inFirst Tutorial in WaterCadWaterCadObjectives

The purpose of this Tutorial is to train the traineeshow to:-Construct a new WaterCad model,-Manually enter all the required data in the model,-Run the model and clear the model errors (if any),-Investigate the model results,-Carryout sensitivity analysis.

First Tutorial inFirst Tutorial in WaterCadWaterCad

C = 100 (all pipes);

Given the water distribution system shown in the belowFigure, it is requested to construct a WaterCad modeland to run the model assuming all pipes roughness ofC=100 which corresponds to 10-years old Cast Iron.


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Steps forSteps for WaterCadWaterCad ModelModel

1. Start a new Project:

File New

Steps forSteps for WaterCadWaterCad ModelModel2. Change Units to SI System:

Tools Options Units Reset Defaults

to System International


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Steps forSteps for WaterCadWaterCad ModelModel

3. Use Hazen William for friction head losses

calculations:-Click Calculation Option Button

-Select Steady State Solver ;

-Click Base Calculation Option;

-For Friction Method: Select Hazen William.

First Tutorial inFirst Tutorial in WaterCadWaterCad4. Start Drawing Your Network: System Layout

Right Click the mouse to select different elements

Draw the whole Network

using the same labels


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4. Start Drawing Your Network: System Layout

Right Click the mouse to select different elements

Draw the whole Network

using the same labels

How can I change the labels and

node numbering?


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Changing Labels and NodeChanging Labels and Node

Numbering inNumbering in WaterCadWaterCadWaterCad uses automatic sequential numbering. If userdeleted any element by mistake, WaterCad automatically will

skip the number of the deleted item and start numbering

afterward.

In order to start the automatic numbering from a certain

number you like, do the following:

Tools Options Labeling

Change the next number you

like WaterCad to begin with.

First Tutorial inFirst Tutorial in WaterCadWaterCad5. Enter Junction Data, Using Flex Table

Click the arrow of the Flex Table Icon and select

Junction

Enter Junction Elevations


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6. Enter Pipe Data, Using Flex Table

Click the arrow of the Flex Table Icon and select

Pipe

Enter Pipe Diameter & C

First Tutorial inFirst Tutorial in WaterCadWaterCadRight click over “Has User Defined Length” and

Select Global Edit

Enter Pipe

Lengths

Check Value OK


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First Tutorial inFirst Tutorial in WaterCadWaterCad7. Enter Junction Demand Data:

Tools Demand Control Center Right Click over

Demand Select

Units and Formatting

Click Yes

Select l/s

Enter Demand Values

First Tutorial inFirst Tutorial in WaterCadWaterCad8. Enter Tank Data: Double Click Tank Element

Base Elev.

Min. Elev.

Initial Elev.

Max. Elev.

G. Elev.


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First Tutorial inFirst Tutorial in WaterCadWaterCad9. Enter Reservoir Data: Double Click Reservoir Element

Water Elev.

Remember that Reservoir in WaterCad meansunlimited Water Storage Facility i.e. water elevation

will not change due to continuous supply.

Enter Reservoir Water Elev.

First Tutorial inFirst Tutorial in WaterCadWaterCad10. Enter Pump Data: Double Click Pump Element

Pump Centre Elev.

Enter Pump Center Elev.

Select Pump Definition

Edit Pump Definition

Pump Definition Type: Stand. (3 Point)

Enter Q &H data of pump


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1. Investigate Flow direction;

2. Is the tank in filling or emptying process? .

Run the Model

Explore Results

Correct all errors

First Tutorial inFirst Tutorial in WaterCadWaterCadExplore pipe velocity Table and the rate of head

lost

If the head loss rate is greater than 7m/km, change

the pipe sizes accordingly

Re-Run again


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Plot the HGL and Profile through

the shown paths

Reset pipe diameter to initial value

First Tutorial inFirst Tutorial in WaterCadWaterCadCarryout sensitivity analysis:

By changing C.

What will be the effect on:

- Pumping head and operating point;

- Flow distribution


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Effect of Changing CEffect of Changing C

C = 100

C = 130

First Tutorial inFirst Tutorial in WaterCadWaterCadClose pipes P-13 and investigate the changes.

Close pipes P-14 and investigate the changes.


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Color Code the Pipes as per their velocitymagnitude