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Free Download Manager makes downloading files and videos easier and faster and helps avoid dreaded broken downloads. It is especially useful for those who are. Operate the Versa 20/8454 using the Agilent ChemStation software (with a Quantum Northwest driver available now as a free download – currently in beta.
Design of a Plug Flow Reactor (PFR) Tubular reactors are widely used in order to perform chemical reactions in gas or liquid flows. A common way to model such reactions is to assume an ideal plug flow inside the tube. 
In this tutorial, the design of a tubular reactor for a non-catalytic gas phase reaction is illustrated based on the plug flow assumption by using the CHEMCAD unit operation KREA (kinetic reactor). In comparison to an equilibrium-based model like implemented in the unit operations GIBS (Gibbs free energy minimization) and EREA (equilibrium reactor based on given stoichiometries) the KREA unit allows a reactor design when kinetic reaction data is available.
Heat exchanger simulation Heat exchangers can be easily calculated in CHEMCAD by solving the energy and mass balances. This is completely sufficient for a standard flowchart simulation. However, a more detailed examination is required if the heat transfer and the pressure loss in dependence on the flowing media and the geometry of the heat exchanger are to be determined. The CHEMCAD module CC-THERM contains numerous calculation bases for different types of heat exchangers (tube bundles, plates, air coolers etc.) and application cases (condensation, evaporation, natural circulation, etc.).
The use of CC-THERM is explained in this tutorial using a simple example: the rating of a tube bundle apparatus. More than 30 different thermodynamic models for the calculation of phase equilibria are available. In addition to the usual gE models and equations of state, it is also easy to add and use custom K-value models. Also, there are numerous special settings for special conditions (e.g.
Pointing correction at high pressures) or material systems (e.g. Vapor phase association for acetic acid). And for the calculation of enthalpy, more than 10 models are available. The usual models are also provided for additional component data and mixing rules. With local thermodynamic settings, different models can be applied within the same flow sheet.