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Last time 3/6/08. D=v o / V Bioreaction Engineering Wash Out: 1.) Neglect Death Rate and Cell Maintenance 2.) Steady State.

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Presentation on theme: "Last time 3/6/08. D=v o / V Bioreaction Engineering Wash Out: 1.) Neglect Death Rate and Cell Maintenance 2.) Steady State."— Presentation transcript:

1 Last time 3/6/08

2 D=v o / V

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4 Bioreaction Engineering Wash Out: 1.) Neglect Death Rate and Cell Maintenance 2.) Steady State

5 Wash Out: Maximum Production Rate = Dividing by V How does this figure relate to drinking a lot of fluids when you have an infection or cold?

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7 Lecture Thursday 3/11/08 Energy Balance Fundamentals Adiabatic Reactors

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9 User Friendly Equations Relate T and X or F i

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19 Last Time 3/6/08

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23 Intro to heat effects Rate of energy in by flow Rate of energy out by flow Heat added to the system Work done by the system Rate of energy accumulation --+= Assumptions: =0

24 - Assuming no phase change during reaction - Assuming constant heat capacity Enthalpy of formation at temperature T R Heat of reaction at temperature T

25 Example – Adiabatic and no work F A0 cancels from remaining terms Usually ΔC P is small compared to other terms XX TT exothermic endothermic Example – PFR A ↔ B 1)Mole balance 2)Rate Laws 3)Stoichiometry 4)Energy Balance T XCXC Adiabatic equilibrium conversion


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