Question: Consider a continuous stirred tank reactor, CSTR. Given that c A i and c A represent molar concentrations of A (in mol/m 3 ) at

Consider a continuous stirred tank reactor, CSTR. Given that cAi and cA represent molar concentrations of A (in mol/m3) at inlet and outlet streams, respectively. Ti and T denote the inlet and outlet temperatures (in 0C) whereas Fi and F denote the inlet and outlet volumetric flowrates (in m3/min), respectively.

  1. If a first order endothermic reaction AB takes place in the CSTR, and the volume is not constant, discuss the relevant conservation equations that are required in order to derive the unsteady-state models relating the system variables V, cA and T. Sketch the schematic diagram. Derive the unsteady-state models and state your assumptions clearly.

  1. If the endothermic reaction now is second order with respect to cA, and assuming constant holdup (V=constant), derive the unsteady-state (dynamic) models and find the transfer functions for CA(s)/CAi(s). Discuss how your dynamic models would differ from those obtained in part (a).

  1. If the reaction is now isothermal, discuss how your dynamic models would differ from those obtained in parts (a) and (b)?

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