ANDHRA UNIVERSITY DMCHE 405: Instrumentation and Process Control
UNIT-I
Instrumentation: Principles of measurement, temperature measurement-Expansion thermometers, thermoelectric temperature measurement, resistance thermometers, radiation temperature measurement.
UNIT-II
Measurement of Pressure and Vaccumm, Measurement of Head and level, Measurement of Humidity and pH Process control : Linear Open loop systems:
UNIT-III
Simple first and second order system, Physical examples of first and second order systems, response of first order systems in series, Transportation lag Linear closed loop systems : The control systems, controllers, final control element, block diagram of chemical reactor control systems, closed loop transfer functions, transient response of simple control systems.
UNIT-IV
Stability Stability. Root locus. Frequency resonse. Control system design by frequency resonse. Bode’s diagram. Bode stability criteria.
UNIT-V
Analysis and design of feed-back control systems. Concept of feedback control. Types of feedback controllers. Measuring devices. Transmission lines. Final control elements. Dynamic behaviour of feedback controlled process. Block diagram and closed loop response. Effect of P.I & D control action on the response of a controlled process.
Analysis and Design of Control systems : Feed-back control of systems with large dead time of inverse response. Cascade control. Feed forward control. Ration control. Splitrange control. Override control.
Text Book: 1. Industrial instrumentation, Donald P. Eckmen, Wiley eastern limited 2. Process Systems Analysis and Control., 2 Edn. Donald R.Coughnowr, MGHill Inc., 1991.
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