theoretical_modeling

theoretical_modeling - Theoretical Process Modeling 1....

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Unformatted text preview: Theoretical Process Modeling 1. Background 2. Liquid holding tank 3. Continuous stirred tank heater 4. Continuous chemical reactor 5. Continuous biochemical reactor 6. Metabolic reaction network Background Basic modeling approaches Theoretical based on conservation principles Empirical based on fitting of experimental data Goals of theoretical modeling Quantify and improve process understanding Operator training Control system design and analysis Process optimization Important considerations Ultimate use of model determines appropriate level of detail Detailed modeling typically require considerable time and effort Model always an approximation to the real process Liquid Holding Tank Assumptions Constant liquid density Constant cross-sectional area A Other possible assumptions Steady-state operation Outlet flow rate q o known function of liquid level h V = Ah q i q o Derivation of Model Equations Dynamic mass balance on tank Steady-state operation: Valve characteristics Linear ODE model Nonlinear ODE model out in on accumulati ) ( ) ( h h A q q...
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This document was uploaded on 02/04/2012.

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theoretical_modeling - Theoretical Process Modeling 1....

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