Consider the storage tank with a sight glass in the figure below. di h2 R2 92 91

Consider the storage tank with a sight glass in the figure below.

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di h2 R2 92 91 The parameter values are R1 = 0.5 min/ft2, R2 = 2 min/ft2, A1 = 10 ft2, Kv = 2.5 cfm/mA, A2 = 0.8 ft2, Km = 1.5 mA/ft, and Tm = 0.5 min. a) Calculate the Pl setting parameters by using the Ziegler-Nichols rules b) What are the gain and phase margins? Assume R2 = 2 min/ft? The transfer function of the system is given by R, Gp(s) = (4,R, A,R, )s² +(4,R, + A,R, + A,R, )s +1 di h2 R2 92 91 The parameter values are R1 = 0.5 min/ft2, R2 = 2 min/ft2, A1 = 10 ft2, Kv = 2.5 cfm/mA, A2 = 0.8 ft2, Km = 1.5 mA/ft, and Tm = 0.5 min. a) Calculate the Pl setting parameters by using the Ziegler-Nichols rules b) What are the gain and phase margins? Assume R2 = 2 min/ft? The transfer function of the system is given by R, Gp(s) = (4,R, A,R, )s² +(4,R, + A,R, + A,R, )s +1