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Thermophysical Property Correlations Provided By Dippr




Thermophysical Property Correlations Provided By Dippr The "Design Institute for Physical Properties" (DIPPR) an industry technology alliance of the American Institute of Chemical Engineers (AIChE) has done some great research on thermophysical properties of hundreds of compounds and the research continues for adding more compounds in the DIPPR 801 database.

Most of the times when a reliable and renowned simulation software is available it makes it easy for the chemical engineer to do any flowsheeting or sizing calculations by selecting the 'property package" and providing the composition of the compound as an input.

However, advanced simulation software is a costly proposition and many small engineering companies or free lance engineers find it beyond their reach to buy a license for such simulation software. Since thermophysical properties are the starting point for driving any process design engineering activities any information on how to obtain the thermophysical properties should prove useful. I am going to present several equations on some desired thermophysical properties which should go a long way in helping the chemical engineering community.

For liquids the equations are based at the vapor pressure or saturation boundary. All of these equations are temperature dependent and are given as an algebraic equation with constants. The equation and constants are provided as an attached MS-Excel worksheet. Only a limited number of compounds are considered which are frequently encountered in the upstream oil and gas. The temperature applicability range for the given property is also provided.

While every effort has been made to provide an error free compilation, no warranty explicit or implicit is provided for the accuracy of the compiled data.

Readers of my blog are welcome to raise any questions. I will try to answer them to the best of my abilities.
 
Quick note from the admin: Download the file included with this blog entry in our File Library.  Note that the original version is attached to this blog entry.  Revision 2 has been moved to the File Library.  Changes in revision 2 includes the addition of the liquid and vapor thermal conductivity properties of a select list of compounds.

Regards,
Ankur.

Attached Files






Amazing job, Ankur! As usual!!! Thank you very much!
Thanks Ankur !
Hi Ankur,
I was just in the process of making your Rev-0 as a spreadsheet calculator & then I saw your Rev-1. I know the pain you took to convert all the text data to digit (perticularly removing - dash & replacing it with -ve sign).
Thanks for the same.
thanx a lot Ankur
Hi Ankur,

how can i make sure that a Gas mixture ( hydrocarbon) will not condensate after cooling?Gas composites, pressure and temperature are known.
a scrubber is used before compressing and cooling. so actually there schould'nt be any water contained. should i nevertheless use mollier graph to make sure that there is no water condensed?

Thank you
Blue minded
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eduardoeduardo
May 03 2013 03:31 AM

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