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Introduction to Process Instrumentation and Measurement Techniques

Introduction to Process Instrumentation and Measurement Techniques

 

COURSE CODE:                    KCIPRI-04

Credit Value:                         4.0      

 

Learning Outcomes:

On completion of this course the student will be able to

  1. Describe and use in specific applications, various sensors used for measurement of typical process variables such as temperature, flow, pressure, level, and weight.

 

 

On completion of this course the student will be able to describe and use in specific applications, various sensors used for measurement of typical process variables such as temperature, flow, pressure, level, and weight.

Objectives:

Process variables

Be able to describe some example processes (e.g., steam plant) and mention some of the variables that are important to measure.

Temperature and sensors for process temperature measurements

Properties and temperature changes, temperature scale, resistance temperature detectors (RTDs), Measuring resistance (wire-wrapped RTDs, thin-film RTDs, filled thermal systems), thermowells, Thermocouples (operation, types of thermocouples, using conversion tables, multiple thermocouples, thermocouple construction)

Weight, mass and their measurement

Mass and weight, density, strain gage load cells (beam design, S-shaped design, compression-based design), load cell applications (using multiple load cells), pneumatic and hydraulic load cells

Pressure and process pressure measurements

Pressure and force, units of pressure, atmospheric pressure, gauge pressure, vacuum and absolute pressure, absolute pressure, barometric pressure, calculating the amount of pressure, differential pressure, pressure transducers, strain gages, capacitance pressure sensors, measuring differential pressure, applications

Flow and process flow measurements

Flow rate, units of flow, effect of energy, standard and actual readings, flow of gases, flow of liquids, flow rate (volume flow rate and mass flow rate) and flow velocity, factors to consider (pressure/velocity relationship, viscosity, density, friction, patterns of flow (laminar and turbulent flow), differential pressure sensors, vortex sensors, magnetic flow sensors, positive displacement sensors, turbine flow sensors, mass flow sensors (Coriolis-based and thermal-based)

Level measurements

Types of level sensors, use of differential pressure for level sensing, floats (magnetic floats, floats with levers, floats with switches), capacitance measurements, conductivity probes, ultrasonic and radar sensors

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