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Class activity - Coggle Diagram
Class activity
System selection
Bioreactor
A bioreactor is a manufactured device or system that supports a biologically active environment. It’s essentially a vessel used for carrying out a chemical process involving organisms or biochemically active substances derived from such organisms.
Component balance
Focuses on individual components like oxygen, nutrients, and metabolic products.
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Degree of freedom
NF= NV - NE
The number of process variables, NV depends on the specific system configuration. For example, unknowns could include:
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The number of equations, NE will have three by solving the
process model.
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Assuming 3 unknowns (inlet substrate concentration, cell concentration, and product concentration in the outlet stream), we have
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This indicates a zero-degree-of-freedom system. In such a system, all variables are dependent on each other, and you need to specify all initial conditions and operating parameters to determine the complete system behavior.
Energy balance
The energy balance is a calculation that ensures the energy entering the system is equal to the energy leaving the system plus any accumulation of energy within the system. This principle is based on the law of conservation of energy.
The bioreactor system also generates heat due to cellular metabolism. An energy balance can be written to account for heat transfer and maintain optimal reaction temperature.
Mass balance
Mass balance refers to the principle that the mass of all inputs (feed) into the bioreactor must equal the mass of all outputs (products and waste), plus any accumulation within the system.
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