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  • AutoCAD DUCT SIZING program. 15Kb
    To view the Screen Capture, go to Randall C. Wilkinson's page.

  • WINDOWS DUCT SIZING program. 5Kb
    To view the Screen Capture, go to Randall C. Wilkinson's page.

  • DOS DUCT SIZING calculator. 49Kb
    A stand alone DOS program for sizing new heating and air conditioning ducts. Imagine an RPN calculator customized for sizing ducts. Customizable, mouse aware, runs on minimum hardware. Full documentation included. Written by Randall C Wilkinson in 1989 using QuickBASIC.

  • Windows PIPE SIZING program. 9Kb
    A windows application Written by Randall C Wilkinson for sizing new HVAC and plumbing (pressurized) pipes. Uses slider bars for input. Useful mainly for sizing new pipes, but can be used to calculate pressure drop through simple systems. Written with Visual Basic 3.0 and therefore requires VBRUN300.DLL in your WINDOWS\SYSTEM directory (available by FTP from microsoft).

  • PSYCHROMETRIC FUNCTIONS for microsoft Excel 5.0, 32Kb
    A library of Visual Basic functions written by Randall C. Wilkinson especially for Excel 5.0 to calculate properties of moist air. ZIP file contains library of functions and Sample XLS files showing state point calculations, mixing problems and a simple psychrometric chart.

  • BUILDING HEATING LOAD for microsoft Excel 5.0, 4.7Kb
    This is a spreadsheet by Randall C. Wilkinson to calculate approximate heating loads for a single zone.

  • PMTHERM V 1.23 a free program for psychrometrics.
    For documentation and history go to Paul Milligan's home page.

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