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Homework 10 - Model a Valve

# Homework 10 - Model a Valve - i The valve is linear ii The...

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Chemical Engineering Department University of Florida ECH 4323 Process Control Theory HOMEWORK No. 10 1. Exercise 8.2 a, b, c 2. Exercise 8.3 a, b, c 3. Special problem. Modeling of a valve Find the gain constants K v and K P for a model of a fast valve with coefficient C v = 1 gal/psi 0.5 , modeled by the linearized equation q ' ( t ) = Κ ω λ220d( τ 29 + κ Π Π 220d( τ 29 , where q ' ( t ) = θ ( τ 29 - θ ( τ 29 , l ' ( t ) = λ( τ 29 - λ( τ 29 , and P ' ( t ) = D P ( t ) - D P ( t ). Consider the following cases:
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Unformatted text preview: i. The valve is linear ii. The valve is of the quick-opening type iii.The valve is of the equal-percentage type with R = 40. b. A steady-state the pressure drop is 4 psi for a lift opening of 40%, and i. The valve is linear ii. The valve is of the quick-opening type iii.The valve is of the equal-percentage type with R = 40....
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