Know your way around the free engineering software. There are some real good programs out there if you know how to find them. See what’s out there, download and review so you can improve your work as an engineer.

Scanned Graph by ScanIt

Scanned Graph by ScanIt

 

Today I ran into a real gem by accident as I was searching for images in Google. The image on the left here caught my eye and I decided to have a peek at the site where it came from.

It turned out to be a blog post on a case study for the program ScanIt where it was used to digitize a scanned graph from a textbook on heat transfer.

 

Now why was this interesting?

Well, for the following three reasons:

  1. translating graphs into tables is a tedious excercise,
  2. automated digitizing could increase accuracy dramatically and
  3. this software is FREE!

So what does ScanIt do?

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Open Workbench will be presenting a new version of their planning software soon and is also upgrading their website momentarily. As a result the site may not be available for downloading their current OWB version.

Please be aware that an alternative download mirror exists at www.itdesign.de where the current verstion 1.1.6 can be  downloaded.

Of course the falchemist ebook on OWB will be reviewed and updated as well as soon as the new version of OWB has been officially released. Everyone who has downloaded this ebook will be informed by email automatically. If you have not done so already, get your own copy and be the first to know!

In an earlier post I have drawn attention to the VBA addin for steam properties as written by Bernhard Spang from Hamburg in Germany. Based on the popularity of that post I have decided to make another spreadheet available that is in turn based on this VBA code.

Steam Calcs V1.0 is a spreadsheet that allows the calculation of three quite common steam operations:

  • Adiabatic letdown (through a valve)
  • Isentropic letdown (through an expander)
  • Desuperheating with condensate
Download Steam Calcs V1.0

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This FREE e‑book with accompanying data files is a beginners guide and tutorial to using the project scheduling tool “Open Workbench™”. It is now available in the Falchemist e-book Libary.

Plan and Execute Like a Pro

As a chemical engineer, you are responsible for project execution and you’ll need to make commitments to others in the team. As your experience grows, so will your responsibilities and soon if not already will you need to make commitments for others working under your supervision as well.

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Cubic Splines

Cubic Splines

Cubic spline interpolation is a useful technique to interpolate between known data points due to its stable and smooth characteristics. Unfortunately it does not prevent overshoot at intermediate points, which is essential for many  engineering applications.

Korf Technology Ltd have developed a constrained cubic spline interpolation method that combines the smooth curve characteristics of spline interpolation, with the non-overshooting behaviour of linear interpolation.

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