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MV1453 MARINE CONTROL ENGINEERING AND AUTOMATION
UNIT I
Control system: Introduction to control terms, Block diagrams for control systems, open loop and closed feed back control, comparison of closed and open loop, feed forward control. Feed forward modification. Regulators and servomechanism. Proportional plus integral plus derivative controls. Use of various control modes.
UNIT II
Graphical representation of signals: Inputs of step, Ramp, Sinusoid, Pulse and Impulse, Exponential Function etc Error Detector, Controller output elements. The dynamics of a simple servomechanism for Angular position Control: The torque Proportional to error, servomechanism, and different response of servomechanism. Technique for improving the general performance of servomechanism. The frequency response test. Series compensation using Nyquist Diagram.
UNIT III
Process control systems: Automatic closed loop process. Control system Dynamic characteristics of processes. Dynamic characteristics of controllers. Electronic Instrumentation for measurement and control analog computing and simulation: Introduction, Basic concepts. Analog computers. Simulation. The use of Digital computer in the simulation of control system. Hybrid computers.
UNIT IV
Transmission: Pneumatic and electric transmission, suitability for marine use. Pneumatic and types of controllers hydraulic, electric and electronic controllers for generation of control action Time function controllers. Correcting Units: Diaphragm actuators, Valve positioners, piston actuators, and Electro pneumatic transducers. Electro- hydraulic actuators and Electric actuator control valves.
UNIT V
Application of controls on ships: Marine Boiler - Automatic Combustion control, Air - Fuel ratio control, feed water control single, two and three-element type, steam pressure control. Combustion chamber pressure control, fuel oil temperature control, Control in Main Machinery units for temperature of lubricating oil, jacket cooling water, fuel valve cooling water, piston cooling water and scavenge air, fuel oil viscosity control. Bridge control of main machinery, Instruments for UMS classification.
TEXT BOOKS
1. D.A. Taylor, “Marine Control Practice”, 2nd Edition, Butter worth & Co (Publishers) Ltd., London, 1987.
2. Leslie Jackson, “Instrumentation and Control Systems”, 3rd Edition, Thomas Reed Publication Ltd., London, 1992.
REFERENCES
1. L.F. Adams, “Engineering Instrumentation and Control”, 1st Edition, English Language Book Society (ELBS), Hodder, Stoughton, Great Britain, 1984.
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