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Product category: Fluid, thermal, noise and vibration analysis software
News Release from: ProSim | Subject: Simulis Thermodynamics
Edited by the Engineeringtalk Editorial Team on 29 November 2006

Spreadsheet simplifies binary mixture
calculations

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Thermodynamics software simplifies application of the McCabe-Thiele method, which is widely used to determine the number of theoretical stages required to separate a binary mixture by distillation.

The McCabe-Thiele method, a chapter in all chemical engineering courses, is widely used to determine the number of theoretical stages required to separate a binary mixture by distillation Applying this method is easy, if the thermodynamic properties of the system are available

This is the case with Simulis Thermodynamics.

An MS-Excel spreadsheet has been built with calls to the Simulis Thermodynamics functions embedded in MS-Excel.

It enables to easily determine the operating conditions required for the separation of any binary mixture.

In the provided example, the method is applied to the separation of an acetone/water mixture.

The user sets inlet flow characteristics, pressure as well as purity required at the distillate and the residue.

Results of the calculation include the total number of theoretical plates required to reach the specifications.

The equilibrium curve and the operating curves for both stripping and rectification sections allow the graphical representation in the spreadsheet.

The reboiler and condenser heat duties are also calculated with rigorous enthalpy models and the feed position is graphically visualised.

This spreadsheet can be freely downloaded from the ProSim website along with other examples (double pipe heat exchanger length, two phase flow pressure relief valve, steam electric boiler water input flowrate, pumping system head and cost, power generation from a steam expander) and a free 10 days evaluation license of Simulis Thermodynamics.

These examples illustrate the numerous applications for which Simulis Thermodynamics functions added in MS-Excel can be used to perform more or less complex engineering calculations.

Simulis Thermodynamics can also be used in Matlab or directly within in-house software.

It is one of the most complete tools available on the market for mixture properties and phase equilibrium calculations.

Simulis Thermodynamics is available as a MS-Excel add-in, a toolbox in Matlab or as a software component which can be easily plugged in any other application requiring reliable and accurate thermophysical properties.

The full permanent licence can be purchased online for only Eur 1450 (local licence, including one year of maintenance, updates and technical support services).

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