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LabVIEW – TP Calculator

Colin Lacey ME 340-2 Winter 2014. LabVIEW – TP Calculator. Creating a Thermophysical Properties Calculator in LabVIEW. Advantages: Graphical environment allows fast programming Built-in functions for handling spreadsheets and interpolation User interface very easy to set up

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LabVIEW – TP Calculator

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  1. Colin Lacey ME 340-2 Winter 2014 LabVIEW – TP Calculator

  2. Creating a Thermophysical Properties Calculator in LabVIEW • Advantages: • Graphical environment allows fast programming • Built-in functions for handling spreadsheets and interpolation • User interface very easy to set up • Plotting data is very simple • Inherently handy for touch controls • Disadvantages: • Run-time libraries (or development environment) required for execution • Greek symbols not natively supported (used pictures instead) • Must be recompiled to run on alternate OS

  3. Source Code

  4. User Interface • Employs separate tabs for each category • Different properties reported • Graphs properties as function of temperature • Allows for °F or °C input, as well as Kelvin • Does away with using kJ as units • Has an LED to indicate out-of-range values

  5. Result • Submitted as both .exe and .vi file • Choose between convenient use and the ability to customize • Problems/Bugs • The graphs don’t all autoscale properly • Some of the reported bounds for the temperature are incorrect

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