I.M. Appelpolscher has asked you to investigate the dynamic operating characteristics of a stirred-tank heater with variable holdup of the type described by Eqs. 2-45 and 2-46. He is convinced that changes in the inlet flow rate wi will affect the outlet temperature T according to a transfer function of the form

when the outlet flow rate w and the other inputs, Ti and Q, are T₁ constant.

(a) Appelpc4schcr claims to have forgotten more about process dynamics than most people know. What specifically did he forget this time?

(b) While you are working on this assignment, find V? (s)/W₁ (s).

Transcribed Image Text:

dV (W- w) (2-45) dt dT WE (T:- 7) + Q Vp (2-46) dt K(1 - Tes) s(Ts + 1) T'(s) W(s)