Classification of Chemical and Biological Engineering Systems

Determine the physico-chemical parameters of the model experimentally or obtain them from the literature if some or all of them are available there. 

Develop a method that finds the solution of the mathematical model equations. The method may be analytical or numerical. Its complexity needs to be understood if we want to monitor a system continuously. Whether a specific model can be solved analytically or numerically and how, depends to a large degree upon the complexity of the system and on whether the model is linear or nonlinear. 

Algorithmic and computational solutions for model (or design) equations, combined with chemical/biological modeling, are the main subjects of this book. We shall learn that the complexities for generally nonlinear chemical/biological systems force us to use mainly numerical techniques, rather than being able to find analytical solutions. 

It is very useful to classify different basic system models now in relation to their mathematical description. 

Classification according to the variation or constancy of the state variables with time  

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