Corrosion rate calculation in pipe lines

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Double Click on the following icon on the desktop:

Logo.png

You will see OLI Studio Analyzer window open which looks like following:


2014-10-08 13-56-53.png


Add a stream:


Add a streamCA.png

Make sure the units are switched to the ones you want to work with before you add any calculation. In this case we are switching from Batch System to Flowing System. Let's enlarge the image here to clarify which option we are talking about. There are three ways to get to the Units manager.

  • Click on the hyper linked unit names in the inflows section under definition
  • Click on the circled symbol of C<->F on the top toolbar
  • Go to Tools on the top bar-> Units Manager..


Switching units at global level CA.png

Composition for this example is as follows:

Composition
H2O 10kgmol/hr
H2S 0.1kgmol/hr
CO2 100kgmol/hr


Conditions
Temperature 40deg C
Pressure 1.6atm

To read more about possible error message while converting pressure units please read Diffusivity not available

To read more about Unit conversion please read Unit conversion

Now the next step is to add a Corrosion Rate calculation:

AddcalcCA.png

Once this calculation is added , Definition Screen for the calculation will look different and will populate with more options. Please click on the Survey By option above the summary section and click on Pipe Flow:

Pipeflow calculationCA.png


Please plug in the value for diameter of the pipe under Calculation parameters. Once you have all the values input,click Calculate. You will get a General Corrosion Rate Plot amongst Localized Corrosion, Polarization curve and Depletion Profile.


Corrosion rate in a pipe CA.png|