Question: A liquid storage system is shown below. The normal operating conditions are q 1 = 10 ft 3 /min, q 2 = 5 ft 3

A liquid storage system is shown below. The normal operating conditions are q1 = 10 ft3/min, q2 = 5 ft3/min, h = 4 ft. The tank is 6 ft in diameter, and the density of each stream is 60lb/ft. Suppose that a pulse change in q1 occurs as shown in figure.

(a) What is the transfer function relating H? to Q|?

(b) Derive an express ion for h(t) for this input change.

(c) What is the new steady-state value of liquid level h?

(d) Repeat (b) and (c) for the doublet pulse input of Exercise 5.1 where the changes in q1 are from 10 to 15 to 5 to 10ft3/min.

12 91 15 10 12 Time (min)

12 91 15 10 12 Time (min)

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