The distillation column in fig. 15.8 has the following transfer function model: y′(s) d′(s) = 2e−20s 95s + 1 y′(s) f′(s) = 0.5e−30s 60s + 1 with gv = gm = gt = 1. (a) design a feedforward controller based on a steady-state analysis. (b) design a feedforward controller based on a dynamic analysis. (c) design a pi feedback controller based on the direct synthesis approach of chapter 12 with τc = 30. (d) simulate the closed-loop response to a unit step change in the disturbance variable using feedforward control only and the controllers of parts (a) and (b). does the dynamic controller of part (b) provide a significant improvement? (e) repeat part (d) for the feedforward–feedback control scheme of fig. 15.11 and the controllers of parts (a) and (c), as well as (b) and (c). (f) which control configuration prove?
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Chemistry, 22.06.2019 22:00
Ill give u brainliest pls how is mass of carbon conserved during cellular respiration
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You are attempting to recrystallize a crude product mixture. you add the appropriate amount of hot solvent and are allowing the solution to slowly cool to room temperature. however, at room temperature no crystals have appeared, which of the following methods should be used to induce crystallization? choose all correct answers. a) place the flask in an ice bath. b) swirl the contents of the flask. c) add a small seed crystal of the desired product. d) scratch the inside of the glassware using a stir rod. it can be multiple choices
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Chemistry, 23.06.2019 05:30
Find the midpoint of a segment with endpoints of 4-3i and -2+7i
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Which one of the following is an oxidation-reduction reaction? naoh + hno3 --> h2o + kno3 naoh + hno3 --> h2o + kno3 so3 + h2o --> h2so4 cacl2 + na2co3 --> caco3 + 2 nacl ch4 + 2 o2 --> co2 + 2 h2o al2(so4)3 + 6 koh --> 2 al(oh)3 + 3 k2so4
Answers: 3
The distillation column in fig. 15.8 has the following transfer function model: y′(s) d′(s) = 2e−20...
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