Pipenet manual espaol

Enter a value of When one or more attributes are. The colour of a component may revert to blue in either of the following situations: 1.

If a check is performed using the check button on the calculation toolbar and the component is found to be invalid. If the file is saved and re-opened, and on re-loading the component it is found to be invalid.

Entering the Specifications Two specifications are required in this example. The pressure at the downstream end of the pipe is constant, while the pressure at the upstream end varies sinusoidally. Select the node that is to have the constant specification, and in the Properties window: 1. Select the Specification type as Pressure. Tab to the next field and select the time function as Constant.

Tab to the next field and enter the constant value as 0. Enter tab or the Return key to complete the editing. Select the other node and, in a similar manner, in the Properties window: 1. Select the specification type as Pressure.

Tab to the next field and select the time function as Sine wave. Tab to the next field and enter an amplitude of 0. Tab and enter the frequency as 0. Tab and enter the constant phase as 0. Tab and enter the constant value as Tab or select Enter to complete the data entry. Another way to look at pipes is via the Tabular View, although it is not a significant advantage with only one pipe, but makes a lot of sense when there are many pipes whose properties you wish to view.

Select the menu option View Data window to display the window:. Data can be edited in this window simply by clicking in the appropriate cell, and entering a new value or selecting from a list of valid options. Moving to the next field is achieved by either entering a tab or by pressing the Return key. Both the Schematic Window and the Tabular View can be displayed simultaneously by selecting the menu option Windows Tile horizontally or Windows Tile vertically.

Defining the output tables Simple or Complex tables can be defined. Simple tables contain output results for a single component only.

Complex tables can include output results for more than one component. In this example, we shall request output results for pressures and flow rates along the pipe by using two simple tables. Tables are edited via the Tables tab in the Tabular view; selecting the tab displays:. Select the Add button in the heading of the window, and then enter the title as "Pressures along the pipe" in the Title 1 field the name in the title 1 field appears in the combo box in the window heading , and the window should appear as:.

Now select the symbol Now select the component type as Pipe, and the window changes to:. We want to select the inlet pressure, outlet pressure and Pressure at Note that the next available column is now shown as 4. Creating another table for the flow rate is achieved in a similar manner: 1.

Select the Add button to create a new table. Enter the title for the table in the Title 1 field. Select the component type as Pipe again. Select the options inlet flow rate, outlet flow rate and Flow rate at Provide the value for the flow rate at m.

Defining the graphs Two types of Output Graph are available: a variable against time and b pipe variable against distance. In this example, we will request graphical output of pipe pressures and flow rates against time. Graphs can be associated with a component in two ways. In the first way, we right-click on the desired component, choose the option Select Results, with sub-option Variable v Time, and then select All variables:.

This is probably the simplest way for our network, since we only have one pipe. The alternative is via the Graphs tab in the Tabular View:. Firstly, select the Next, select the component type as Pipe, the component label as 1, and the variable as All variables with all of these options being selectable from drop-down lists of available items.

Regardless of the method used, the Result Graphs tabbed window should appear as follows:. The start and stop times for the simulation, together with the output time step for graphical output, are defined in the Calculation Output dialog see Stage 4 , where a filename for the graphical output can also be defined.

Stage 3 - Checking the network Check various aspects of the entered network such as connectivity and size by selecting the check button on the calculation toolbar. If the network is complete and well-connected, a dialog similar to the following will be shown:. If there are any errors or warnings, they will be displayed in the dialog.

The user should always perform a check on the network before proceeding with a calculation. SDF extension. Select the File Save As option and enter a filename. A different filename should be used for each different scenario that is run.

Stage 5 - Performing a calculation 1. Specify the initial state for the system by selecting the Calculation Options menu, followed by the Initial State tab. In this example, we will use a short transient run-in to stabilize the solution , before calculating the initial steady state for the calculation:. Pressing the default button sets the run-in time to a quarter of the total simulation time. Other options in the dialog allow the user to specify a Static initial state in which all flows are zero or to use an initial guess file as the starting point for the simulation.

Specify the output filenames and time steps by selecting the Output tab:. No forces are calculated in this example, so the generate forces file option is unchecked. Example 3 demonstrates the calculation of forces in the Transient Module. A restricted time window for graphical output can be specified by changing the graph start and stop times by default, the simulation start and stop times are 0 and 10 seconds respectively. This feature can be useful in reducing the size of the graph file, by concentrating on an interesting part of the simulation.

Pressing the Timestep button gives information about the simulation time steps and the division of pipes:. The maximum time step for numerical stability is dependent on the pipe lengths and wave speeds.

All pipes in the network are listed. The number of divisions in each pipe based on the calculated time step is shown, along with the interpolation error based on these divisions. The interpolation error tolerance is changed in the Controls tab. Run the simulation by selecting Calculation Go. The Calculation Output dialog appears, and any final changes to the output details can be made. Selecting OK runs the calculation.

The Transient Module progress bar illustrates the progress of the simulation through each of its three stages; namely, run-in, simulation and writing of the graph data file:. The calculation uses a temporary copy of the network information, so it is possible to perform other tasks while waiting for the calculation to be completed. As an alternative, the calculation can be started using the calculate button on the toolbar.

Stage 6 - Viewing the results Results may be viewed in a number of different ways:Summary results can be viewed in the Data window.

The report viewer, or browser, can be used to display the calculator output. Output graphs can be viewed using the Graph Viewer. Viewing summary results in the data window When a calculation has been performed, summary pressure extrema for each component are displayed in the Properties windows and in the Results page of the Tabular View. To display the tabular view, if it is not already displayed, select the menu option View Data window and then the Results tab Output report Each Transient Module calculation produces an output report.

This report contains details of the calculation, including a summary of the network and specifications, any output tables that have been requested, together with the minimum and maximum pressures observed during the simulation. The report file is viewed by selecting Output Report. If there are errors at any stage in the calculation, they will be listed in the output report. Output graphs The graphical results can be drawn using the Graph Viewer, which is accessed by selecting Output Graphs For more details on using the Graph Viewer to display and edit graphs, see the Graph Viewer chapter.

In our example, the results show that there is a sinusoidally varying pressure and flow rate at various points along the pipe. Note that the flow-rate graphs clearly show the time delay for the pressure variation at the upstream end of the pipe to affect the flow results metres away, at the downstream end of the pipe. This second example illustrates a use of the Spray option.

It also describes how to create and use library files to hold project-specific information relating to pipes, valves or pumps. The system consists of a pump that supplies two sprinkler outlets. The pump is connected to the outlets by one vertical length of pipe and two horizontal sections that branch off it. A diagram of the system, including node and component labels, is shown below:. The aim of the simulation is to observe the effect of the sudden closure of one of the outlets; in particular, the size of the pressure surge on all intermediate pipework.

Setting up the problem On running the program, select the Spray option. In this example, we will show how to use library files to hold project-specific information. Libraries of pumps, valves, pipe schedules or user-defined fittings can be defined and saved independently of the network data. The library files can then be loaded into the Transient Module prior to defining the network details.

In setting up the problem, we will first show how to define, save and retrieve a pump library. Then, we shall use the pre-defined pump characteristic curve for the pump in the sprinkler system. Stage 1 - Adding a pump to the library Specifying units Specify the units in which the pump library is to be defined by selecting Options Units.

In this example, the pump performance curve data is in Metric units. Specifying the pump Select the tab Libraries Pump - coefficients known, select New, and then enter the following data: 1.

The name of the pump, as Test pump this is the name that will appear in the dropdown box at the top left-hand side on the dialog when data entry is complete. A constant coefficient of A linear coefficient of 0. A quadratic coefficient of Finally, select Apply to have the pump curve calculated and displayed:. Specifying the pump - alternative method with coefficients unknown If the pump coefficients are unknown, a similar pump could be created using the Libraries Pump - coefficients unknown option, with the pump curve data as follows: Flow rate.

To specify the pump details in this way, proceed as follows: 1. Select the New button. Provide the name for the pump, as Test pump this is the name that will appear in the drop-down box at the top left-hand on the dialog when data entry is complete. Provide an optional description. Now place the cursor in the first cell in the data entry grid, in the lower left-hand side of the dialog, and enter the first flow rate value of Press the tab key to move to the next field, and enter the corresponding pressure of Continue in this way, entering the remaining data pairs, using tab to move from one cell to the next.

When all the data pairs have been entered, select the Apply button to calculate and display the pump curve. Units The Metric Units system has already been selected before defining the pump library. Pipe type We are going to use a built-in pipe schedule, so all we need to do is to define the pipe type. Select the menu option Options Pipe type.

Select the New button to create a new pipe type. Select an Asbestos lining with a thickness of 3. The dialog should appear as follows:. Transient module options Select Options Transient options, and enter the simulation start and stop times as 0 seconds and 10 seconds respectively.

Note that if the pressure-drop method is changed to Coulson and Richardson at a later stage then all pipe types should be redefined, replacing C-factors with values for the pipe roughness.

Defaults Select Options Defaults to set the default values for pipes. It is useful to set default pipe values before entering large networks, to reduce the amount of data that has to be entered. In the Spray option, default values for C-factor and pipe elevation can be set. In the Standard option, the C-factor is replaced by roughness. In addition, default values for the k-factor and pipe diameter can be specified. Stage 3 - Entering the network details Components Draw the network, such that the layout appearance is similar to the following:.

Thus, there is one pump, a non-return valve and three pipes. For now, ignore the green colour of some components and the appearance of nodes 1, 6 and 7. These relate to graphical results and specifications respectively. For a small network like this, it is probably best to create all of the components, and then enter the attributes for each component in turn, using the Properties window or the Tabular grid.

For the non-return valve, no attributes are required; for the pump, the one and only pump from the library will selected; and, for pipes, you need to enter the following data: Pipe label A B C. Note that if a pipe is defined as using a pipe type then, instead of explicitly entering the pipe diameter, the diameter is selected from a combo box listing the available sizes, together with the unset value. If the data were entered via the Properties window then the values for all pipes could be viewed via the tabular grid, for which you should chose View Data window and then you should see a table similar to the following:.

The details of the three constant specifications are given in the table below. Note that a negative flow rate indicates that fluid flows out of the system.

For each of the nodes 1,3 and 6, the information can be entered in the Properties window; for node 1 the Properties window appears thus:.

The constant value of one for the information specification 3 indicates that the pump operates at full speed throughout. Again, this can all be done in the Properties window with the exponent of 1 indicating a linear closure :.

Stage 4 - Defining output tables and graphs Output tables Tables are defined using the Tables tab in the Tabular grid. When first selected, the display might typically be as follows:. The table is divided into two parts: at the top, there are four title lines; and below this, the definition of the table.

The drop-down box at the top indicates which table is currently displayed; in this case, "Pump operation". The table definition is initially displayed as a line for each component, identified by its type and label, together with a start column.

The last row which contains the symbol In the above example, the pipe with label 1 uses the first four columns of the table. De-selecting or selecting one or more of the available attributes will immediately update the number of columns used.

To add extra columns to the grid, click on the last row i. Finally select the attributes to be displayed:. We need to define five tables: one table for the pump, two tables for pipe A and one table for each of the pipes B and C. For the pump, we select all variables, as in the image above. For pipe A, we define one table that contains the flow rates at 6 points along the pipe, and one table for the pressures at 6 points along the pipe.

We need two tables because one table can have a maximum of 8 columns. The display for the pressure table appears as:. The tables for pipes B and C are defined in a similar way, but here we require only one table, with the flow rates and pressures at 3 points along the pipe. The tables for pipe B appears as:. Output Graphs Components for which results graphs have been selected are displayed in green which is the default colouring scheme. To request results for a particular component, right-click on the component and chose the Select Results option.

For non-pipe components, this will display a list of available variables - select the single result required; for example, either Pressure or All the latter being to accumulate results for all attributes. Removing results To remove results for a component, right-click on the component and select the Remove Results option. Selecting and removing results in the Tabular Grid A summary of which results have been selected can be viewed on the tabular grid - select the Graphs tab when all selected results are displayed, each result being in one of two categories: variable against time which is applicable to all components or variable against distance for pipes only :.

The first column provides the component type, the second the component label and the third the selected variable. Note that only the last of these is directly editable. To add a new result in one of the two categories: 1. Select the line containing Select the component type from the drop-down list in the second column of the newly created row.

Select the component label in the third column. Select the variable s required. Finally, select the symbol in the first column to commit the change. A result may be deleted by right-clicking in the first column of a row and selecting the Delete graph option. Stage 5 - Performing a calculation The default initial state is used here namely, a 2. Select Calculation Options and click on the Output tab:. Select output filenames and time steps for the calculation. We generate a graph output file with a time step of 0.

Note that the graph data file has a relatively small size of items. Press Timestep to view pipe and time step details. In this example, the longest allowed calculation time step is short relative to the total simulation time. This is because the sprinkler pipes B and C 10 m in length are short relative to the longer pipe A m in length.

The pipe lengths are crucial in determining a time step for the simulation. For a quick qualitative analysis of the problem, we could replace pipes B and C with the Short Pipe model, and this would increase the calculation time step to 0.

Select Calculation Go Owing to a shorter calculation time step, the current simulation is slower than that in the first example. Viewing and Interpreting the Results As in example 1, results can be viewed in tabular form using the Output Browser, or in graphical form using the Graph Viewer.

The graphical results show a decrease in the pump outlet flow rate, owing to the decreased demand in the sprinkler system. The effect of closing the sprinkler at the outlet of pipe C on the system pressure is illustrated by overlaying a graph of the pressure at the inlet of the sprinkler arm with one of the flow rate out of pipe C:.

The system pressure rises to a safe value of about 6. See the Graph Viewer chapter for more details on using the viewer. Our last example demonstrates the ability of the Transient Module to calculate forces. The scenario consists of water being drawn from a reservoir through piping. The piping contains a 90 elbow and leads to a turbine via a valve:. If the valve is closed quickly, as in an emergency, then the transient forces on the 90 bend in the pipe are of interest.

The force data can be input to a pipe stress analysis program to determine the safety of the piping in such a scenario. The system is first reduced to a schematic representation, complete with node and component labels, for input to the Transient Module:.

Stage 1 - Creating the library items Select Options Units to define the unit system for the problem. The pipe schedule and valve characteristic data are in Metric units, so we select that unit system for entering library data.

The pipe schedule Select Libraries Pipe Schedule to define a pipe schedule for the example. The pipe schedule dialog appears, and we are able to specify details of the pipe material and bore sizes. Roughness : 0. Young's Modulus : GPa. Poisson Ratio : 0. The schedule diameters in mm are: Nominal 50 65 80 90 Click Apply to accept the data.

The schedule will be added to the list of pipe schedules in the left-hand side of the window. The valve library item A valve characteristic can be defined by providing a series of data points, in this case, describing the Cv factor versus setting s curve. In our example, we will use a simple valve where Cv is linear with respect to the setting s.

Details of the valve characteristic are given in the table: s 0 1. Alternatively, the user can supply their own gradient values. If you do this, you should see the valve definition as Fittings We will use a user-defined fitting, placed on the pipe labeled 'Bend', to represent the frictional effect of the 90 degree bend.

From the Fittings tab, select a 90 bend, and enter its details as below:. On pressing Apply, the fitting will be added to the list of user-defined fittings in the top left-hand window, and is available for use.

If you want to retain a fitting, but make it unavailable for use, select the fitting in the top left-hand window followed by the - button. In this case, the fitting now appears in the bottom left-hand window. Saving the library Once all the items have been defined, simply select the File Save menu option to save the data file and the local user library.

Stage 2 - Problem Initialisation Having defined and saved the library files, we can initialise the problem from the options menu. Title Select Options Title and define the problem title as 'Forces on a 90 degree bend'. Units Select the Units tab and choose the Metric option as the Units system. Time step Select the Transient options tab to define the start and stop times for the simulation. In this example, we will consider the time interval from 0 to 2 seconds.

Stage 3 - Entering the network details Pipes We are now ready to enter the physical components of the network, by drawing the three pipes on the schematic and setting the properties as: Label 1 2. Diameter Length Elevation Fittings mm metres metres 10 0 none 10 none.

For the third pipe, we include the user-defined fitting by selecting it from the Available list and inserting one fitting: Valves To enter the valves, we use the Operating valve tool and, when drawn, select the type as 'Test valve'. The Properties window should then appear as:. Stage 4 - Specifications There are three specifications in our problem: pressure specifications at the two boundaries and the information setting of the valve. Specify constant pressures at the boundary nodes 1 and 5 of 25 bar G and 10 bar G respectively.

We wish to simulate the sudden closure of the valve. To do this, we define a Power Ramp as its information setting.

Label Type Node Time function Value. Stage 5 - Defining forces Forces are defined using the Forces tab in the Tabular grid. This view shows the list of defined forces and a description. Clicking on the The force dialog has two options - Simple or Complex. The Simple option is used to calculate forces along a straight line. In our example, we wish to calculate the total force on the bend, so we use the Complex option.

This allows for more complicated force definitions; for example, involving multiple components. Click the Complex option at the upper right-hand side of the dialog. The external body force is zero here, as there are no restraints. To define the force, we simply have to define the control surface for the control volume containing the bend. Select the component as the pipe labeled 'Bend', and define the position, normal vector and flow direction of the two control surfaces.

Stage 6 - Specifying tables Tables are defined using the Tables tab in the Tabular grid. The table is divided into two parts: at the top, are four title lines; and below this, the definition of the table. DOCS This directory contains this installation guide, a copy of the license state ment displayed during installation, a copy of the release notes and the optional user manuals in Adobe Acrobat format in both A4 and US Let ter formats.

Note the on-line help and the manuals are similar in con tent, but the manuals are fully indexed and formatted suitable for print ing. This directory also contains two sub-directories: Newsletters containing the Sunrise Systems newsletters Case Studies containing a number of case studies for the vari ous modules.

EXAMPLES This directory contains one sub-directory for each installed module, each subdirectory containing the examples referenced in the user manuals and online help. EXEC This directory contains the main executables and a number of related files.

EMF files for including as underlays see user manual or on-line help for further details. In between releases we make available, via our web site, patches which fix minor errors and omissions. Each patch generates a new patch release version. The procedure for obtaining patches is as follows: 1. Log on to the Sunrise website www. If you have not registered with us please do so via the registration section of the website and you will receive your login details via email. Follow the link to Patches and once you have located the patch that you require from the list, click on Download.

A dialog will appear asking whether you would like to run or save this file. Run the. If the key drivers were not installed then the most likely reason for the failure is that you did not have the necessary access rights during installation.

The following summarises the checks you should perform to locate the source of the problem: 1. Check that you are using a security key appropriate to the module you are trying to run. You must have Windows Administrator privileges to install the key drivers since changes are made to the System Registry. This is necessary since some organisations prohibit their users from accessing the local disk. Please check re-install if necessary that the software and key drivers are correctly installed on the users computer.

Running this program produces the display:. Select the Check key drivers button to confirm installation. Entering this command will display the status of the key drivers, which if cor rectly installed will display the date of installation and other informa tion on printer port, version number of driver etc. If step 6. The last of the four buttons in the dialog, Check key, will attempt to read the key, displaying the internally stored key number and the cus tomer name.

The customer name may not be present on very old keys but the key number should always be readable if the key drivers are correctly installed. The key check utility is stored on your hard drive during installation in the sub-dir ectory keydriver, the key check utility program is named KeySetup. DAT file, together with any associated lib rary files, to the email. El e"e ertical muestra una escala de ele aci! Support for additional formats will be pro ided in future ersions.

Soporte para formatos adicionales se proporcionan en futuras ersiones. This can then be imported into programs which can read. The detailed description will be gi en later in this book. La descripci! Look at the following e,ample. Esto crear un cambio en la direcci!

This will create a change in direction of the pipe. Creatin an Additiona. La rea i"n de un nodo adi iona.! Esto es f cil. Light click and then click on Insert node. One of the two pipe sections which are created as a result of this would each ha e the original attributes which had been entered. Note re ersing the direction of a pipe or a duct will negate the ele ation change.

Tenga en cuenta el cambio de direcci! This is useful if more than one item has the same attributes or similar attributes. Pan '. This tool can be used to I. Esta herramienta se puede utili. Para despla. Area Too.! Drea de. The area tool is used to select and manipulate a number of components at the same time. La herramienta de la. Esto es similar a la herramienta de la. It is used in cases such as the following. Se utili.

The rectangular area tool is not suitable for the purpose. Te5t Too.! La herramienta de te,to se utili. Light-click on a te,t element and select I5eleteI from the pop-up menu to delete the te,t. Esto se ilustra me"or con el siguiente e"emplo. Seleccionar la tecla de cursor aba"o una e. The graphic to be imported must be an Enhanced metafile 3file e,tension. La imagen es cargada en la primera solicitud para mostrar la capa base. La isuali. Proporciona una isi!

The rectangle tracks changes in si. Then go to Edit and Paste. Luego ir a Edici! Edit Edi i"n B. This is applied to the data window. Esto se aplica a la entana de datos. Esto se ilustra me"or con un e"emplo. NM mm to N. NP mm. Local edit is similar. The pipes to which the copied alue is pasted must be selected. Sortin in Co. This can be done in the data window. Esto se puede hacer en la entana de datos. Esta parte del curso de capacitaci! The input for the other modules is similar.

La entrada para el resto de m! Proponer una traducci! The shipbuilding industry has found all three modules of PIPENET essential to its multi-faceted work which covers so many trades and industries. When lives and expensive equipment are at stake, the best technology is essential to ensure that the risk is reduced to the lowest possible level. Safety is the ultimate priority. PIPENET Transient Module A versatile, user friendly and extremely powerful software tool for modelling transient state phenomena, and calculating the resultant hydraulic transient forces.

Commitment to Support. PIPENET customers can enjoy the reassurance provided by our first class Maintenance, Updates and Support Service that technical support, licences and upgrades will be provided expediently, within the shortest possible time and with the highest quality.

Dedication to Development.