9. Calculation example
The example below shows how to use the software proposed with this article; the calculations performed by the machine are not developed.
Consider the case study of a pipe with a diameter of 0.1 m, through which water is flowing at a temperature of 20°C, with a density of 998.23 kg · m -3 and a viscosity of 1 centipoise (data taken from [6], which may differ slightly depending on the source), at a pressure of 2 bar absolute. A maximum flow rate of 0.03 m 3 /s is requested.
The simplest solution is the orifice plate. In the "primary element" line presented in the program, we therefore choose a diaphragm with pressure taps at the flange. The "materials" will - in all likelihood - be ordinary steel for the pipe, but stainless steel for the primary element,...
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Calculation example
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Installation
Insert the CD ROM into the drive and double-click on "My Computer".
Double-click on the "Setup" icon.
The installation program generates a Program Files \TI\DepWin directory, but you can choose to create a different directory; an icon is also created, and placed on the "Desktop". If this is not the case, you can create a shortcut from Windows Explorer. Don't forget (if you...
Controls
Program commands can be accessed either from a menu bar or from a toolbar below. The list of commands and how to access them is :
The wording of the toolbar icons is that of the hint message that appears when the cursor is brought close to the corresponding icon.
1. File/New menu or "Reset" icon: variables on screen are completely erased. Use to perform a new calculation without...
Program description
Program
The program includes the following functional elements:
A practical note on checking integrated orifices
This note is intended for users who attempt to verify built-in orifices using the present program.
Integrated orifices are devices whose diameters are generally below the minimum limits set by ISO for pipe and primary element diameters, and which may deviate from the standard in many other respects: it is therefore by no means certain that their coefficients are...
Printing data
The DEPWIN program can print out the results displayed on the screen. To do this, simply activate the "Print" command (§ 2). A second screen appears, showing the results as they will be printed.
At the top of this screen is a toolbar:
the first three buttons from the left are zooms, allowing you to select the data display. They have no further effect...
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