School of Nuclear Engineering

Purdue University

West Lafayette, IN  47907

 

NUCL 555

Thermal-Hydraulic Measurement and Instrumentation

 

Spring 2003

 

Lecture Class Material: In the lecture class this course introduces the measurement techniques in fluid flow, heat transfer and multi-phase flow.  The principle and practice of measurement of temperature, flow, level, pressure and void fraction (in two-phase flow systems) are presented. On instrumentation, various sensors like thermocouple, resistance temperature devices, pressure and differential pressure cells, pressure gages, heat flux sensor, vortex flow sensors, magnetic flow tubes are discussed. The principles of sensor operation, calibration and installation are presented. Advanced instruments: laser Doppler anemometer, gamma densitometer, conductivity probe and impedance meter are presented. The application of these instruments in two-phase flow systems is discussed. Topics on instrument error and measurement errors on the data analysis are presented. The data acquisition system using PC is presented. The state-of-the arts data acquisition boards and software are discussed.

 

Laboratory Class Material: In laboratory class the students are presented with nine sets of experiments. Students perform some experiments and some experiments with special instruments (LDA, gamma densitometer, conductivity probe) will be performed by scientists for demonstration.

 

Format:           Two one-hour lectures and a two-hour laboratory class per week.

Lecture:          Monday, 1:30 p.m. - 3:20 p.m. in HEAV 127

 

Course Text: Lecture Notes (Sufficient reference material is provided)

Reference:     Instrument Engineers’ Handbook, Volume 1: Process Measurement and

Analysis Third Edition, Editor-in-Chief - Béla G. Lipták, Chilton, PA  

1995

 

Instructor:      S.T. Revankar

Office:  NUCL 132E

Phone:  496-1782

Hours:  Friday 10:30 a.m. - 11:20 a.m.

                                    


 

Click here for  CLASS NOTES

 


 

 

School of Nuclear Engineering

Purdue University

West Lafayette, IN  47907

 

NUCL 555

Spring 2003

 

OUTLINE OF THE CLASS LECTURE

 

•Chapter 1. Introduction:

 Instrument Symbols, Performance, and Terminology.

•Chapter 2. Temperature Measurement

•Application and Selection,  Bimetallic Thermometers •Calibrators and Simulators •Color Indicators, Crayons, Pellets Miscellaneous Temperature Sensors  Pyrometric Cones •Radiation and Infrared Pyrometers •Resistance Temperature Detectors (RTDs)  Thermistors •Thermocouples •Thermowells •Ultrasonic Thermometers

Chapter 3. Pressure Measurement

•Selection and Application •Accessories: Seals, Snubbers, Calibrators, and Manifolds •Bellows-Type Pressure Sensors •Bourdon and Helical Pressure Sensors •Diaphragm or Capsule-Type Sensors •Differential Pressure Instruments •Electronic Pressure Sensors , strain gage, variable reluctance and piezo electric sensors, Smart P and DP cells, •High-Pressure Sensors •Manometers •Pressure Gauges •Pressure Repeater •Pressure and Differential Pressure

•Chapter 4. Flow Measurement

•Application and Selection •Cross-Correlation Flowmetering

•Elbow Taps •Magnetic Flowmeters •Mass FlowmetersCoriolis  Mass Flowmeters—Thermal •Orifices  •Pitot Tubes, Averaging, and Duct Section Units  •Turbine and Other Rotary Element Flowmeters  •Ultrasonic Flowmeters  •Variable-Area, Gap, and Vane FlowmetersVenturi Tubes, Flow Tubes, and Flow Nozzles  •Vortex and Fluidic Flowmeters

Chapter 5. Level Measurement

•Application and Selection   •Differential Pressure Level Detectors

•Float Level Devices  Laser Level Sensors  •Ultrasonic Level Detectors

•Chapter 6. Local Velocity Measurement

Laser Doppler Velocimetry

•Chapter 7. Void Fraction Measurement

Gamma Densitometer, Conductivity Probes, Impedance void meter

Chapter 8. Data Acquisition Systems

PC based data acquisition system. Signal conditioning, Plug-in A/D converters,  software. Chapter 9. Signal Analysis

Correlation of Data and Signal, Random Data, PDF, auto-correlation, cross correlation.

•Appendix •International System of Units •Engineering Conversion Factors •Chemical Resistance of Materials •Composition of Metallic and Other Materials •Steam and Water Tables •Friction Loss in Pipes •Tank Volumes •


 

OUTLINE OF THE LABORATORY CLASS

 

Experiment 1: Measurement of temperature using thermocouples: 

Objective:  Using different thermocouples (K, T, E,) measure temperature of a heated liquid. Calibrate thermocouples with standard thermometer. Check commercial fit curves for thermocouple. Study response of thermocouple as function of junction size. Use PC based data acquisition system.

 

Experiment 2 : Pressure and level measurement using smart DP cell

Objective:  Study various types of P and DP measurement sensors : gages (Bourdon type), electrical signal generating P and DP cells (strain gage type,  variable reluctance type, piezo electric type). Use Honeywell DP transducers and electronic communicator to identify, set ranges, measure pressure and water level in a tank. Calibrate the DP cell using DRUCK P and DP calibrator.

 

Experiment 3: Gas flow measurement using a orifice, nozzle, Venturi meter and electronic flow totalizer

Objective: Measure the gas flow rate in a pipe using a orifice, nozzle, a Venturi meter and the electronic flow totalizer. Find total flow losses in the orifice, Venturi and the nozzle.

 

Experiment 4: Liquid flow measurement using magnetic flow meter

Objective: Measure the liquid flow rate in a pipe using a magnetic flow meter. Use electronic communicator to identify, set ranges and measure liquid flow rate.

 

Experiment 5: Gas flow measurement using vortex flow meter and rotameter.

Objective: Measure the gas flow rate in a pipe using a vortex flow meter and rotameter. 

 

Experiment 6: Liquid velocity measurement using laser Doppler anemometer

Objective: Measure the liquid velocity components and turbulence in a rectangular channel using laser Doppler anemometer.

 

Experiment 7: Void fraction measurement using gamma densitometer

Objective: Measure the void fraction of a two-phase air-water flow in a tube using a gamma densitometer.

 

Experiment 8: Local Void fraction measurement using conductivity probe

Objective: Measure the local void fraction of a two-phase air-water flow in a tube using a conductivity probe.

 

Experiment 9: Data Acquisition System

Objective: Connect two different sensors (e.g. thermocouple and DP cell) to the data acquisition system and measure the sensor response.