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For the liquid-level control system in Figure determine the numerical values of K c and 1 ; that result

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For the liquid-level control system in Figure determine the numerical values of Kc and τ1; that result in a stable closed—loop system. The level transmitter has negligible dynamics, while the control valve has a time constant of 10s. The following numerical values are available:

A = 3 ft? q3 = 10 gal/min K, = -1.3 gal/min/mA Km (for control valve) 4 mA/ft (for level transmitter)

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A = 3 ft? q3 = 10 gal/min K, = -1.3 gal/min/mA Km (for control valve) 4 mA/ft (for level transmitter)

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5 K 1 1 3 G s G s G s K 10 60 s 1 1 As 1 3 0 167s 1 1 22 4s G …View the full answer


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Process Dynamics And Control

Process Dynamics And Control

ISBN: 978-0471000778

2nd Edition

Authors: Dale E. Seborg, Thomas F. Edgar, Duncan A. Mellich

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Question Posted: July 29, 2011 16:05:20
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