ID: 0926
Course type: theoretical and methodological
Course coordinator: Ilić B. Dejan
Lecturers: Ilić B. Dejan, Ilić T. Jelena
Contact: Ilić B. Dejan
Level of studies: M.Sc. (graduate) Academic Studies – Mechanical Engineering
ECTS: 6
Final exam type: written
Department: Department of Hydropower Engineering
Research, development and practice in science and engineering cannot be imagined without the experimental methods that are combined in the field of measurement techniques. The aim of this course is to provide basic and specific knowledge in the field of experimental methods necessary for mechanical engineers, with special reference to flow measurement techniques. The subject involves measuring the nonelectrical quantities in mechanical engineering and their transformation into electrical quantities using sensors. Through specific measurements in the laboratory, students are introduced to the field of practical experimental methods.
On successful completion of this course, students should be able to: 1. Apply theoretical knowledge in practical measurements of some quantities in mechanical engineering, 2. Describe measurements methods of some quantities (velocity, flow, pressure and fluid temperature) and specify classical and contemporary measuring techniques, 3. Process and present the measurement results, 4. Calculate the measurement uncertainty, 5. Explain the calibration of velocity, pressure and flow measuring devices, 6. Describe the types and characteristics of sensors.
Theoretical lecturing is realized through the following core learning areas: - Error of direct and indirect measurements. Measurement uncertainty. - Theoretical basis of measurement non-compressible and compressible fluid flow. - Measurement of pressure and velocity of fluid flow. - Measuring velocity as vector quantities. - Temperature measurements. - Measurement of fluid flow. - Measurement of humidity. Measuring the frequency of rotation, force, torque and power drive and driven machinery. - Sensors (types, properties, characteristics, materials). Resistive, capacitive, inductive and generator sensors.
Auditory exercises: - Errors of direct and indirect measurements of measurement quantities. Measurement uncertainty. - Measurement of pressure and velocity of fluid flow. Pressure gauges and anemometers. - Measuring velocity as vector quantities. - Measuring compressible flow parameters. - Measurement of fluid flow. Flow-meters. - Sensors (types, characteristics, dynamic characteristics, materials). - Resistant, capacitive, inductive and generator sensors. Laboratory exercises: - Determining the pressure distribution around the contour of the cylindrical probe, - Cylindrical probes calibration, - Measurements of temperature sensors.
Desirable: Thermodynamics, Fluid Mechanics, Physics and measurements.
[1] M Benišek., M Nedeljkovic., R Kilibarda., Gerasimović D. "The measurement techniques. Exercises in flow measurements", Mechanical Engineering, Belgrade 2006., [2] Ilić D. B. - Hand-outs from the written lectures, [3] Vušković I .: "Fundamentals of measurement techniques", Mechanical Engineering, University of Belgrade, Belgrade, 1977., [4] The experimental installation for velocity and pressure probe calibration, available in the laboratory of the Department, [5] The experimental installation for calibration of the pressure devices, available in the laboratory of the Department, [6] Laboratory of the Institute of physics of Technical faculties.
Total assigned hours: 75
New material: 20
Elaboration and examples (recapitulation): 10
Auditory exercises: 0
Laboratory exercises: 15
Calculation tasks: 15
Seminar paper: 0
Project: 0
Consultations: 0
Discussion/workshop: 0
Research study work: 0
Review and grading of calculation tasks: 0
Review and grading of lab reports: 5
Review and grading of seminar papers: 0
Review and grading of the project: 0
Test: 5
Test: 0
Final exam: 5
Activity during lectures: 5
Test/test: 40
Laboratory practice: 22
Calculation tasks: 3
Seminar paper: 0
Project: 0
Final exam: 30
Requirement for taking the exam (required number of points): 30
Ilić D. B., Ćantrak Đ. S. (2022): Manual for fluid flow measurements in laboratory, Fac. of Mechanical Eng. Univ. of Belgrade, Belgrade. (in Serbian); M. Banjac et al.: "Manual for training energy advisors". Belgrade: Faculty of Mechanical Engineering, University; 2025. p. 26, 942 pp., ISBN: 978-86-6060-213-0; Holman J.: "Experimental methods for engineers", Internatiional student edition, Mc Graw – Hill Company, 1984.; Tropea C., Yarin A., Fosss J. (Eds.): Springer Handbook of Experimental Fluid Mechanics, Springer-Verlag, Berlin, Heidelberg, 2007.; Stankovic D .: "Physical Technical measurements - sensors", Electrical Engineering, Belgrade, 1997.