• Semester 5, position 4

Acquiring basic knowledge on industrial compressors. Increased knowledge of thermodynamics through the study of compression of real gases, gas mixtures and moist gases, and the study of actual working cycles of reciprocating compressors. Expansion and acquisition of new knowledge in the field of Engineering, through the study of basic structural elements, systems and auxiliary equipment of reciprocating compressors. Developing skills for the design of reciprocating compressors, selection, testing, installation and maintenance in service.

Understanding of complex real working cycle of reciprocating compressors working with real gases; Understanding of complex structural design of such machines. Development of critical thinking which leads to sound understanding of cause-effect relationship between working cycle and machine design; Ability to design and accomplish selection, testing, installation and maintenance of reciprocating compressors in service.

Reciprocating mechanism kinematics and dynamics; Unevenness of Reciprocating Compressor crankshaft speed; Compressor and crankshaft balance; Theoretical thermodynamic fundamentals of compression processes of ideal and real gases, gas mixtures and moist gases; Theoretical work cycle of piston compressor without dead volume; Actual working cycle of single-stage piston compressor, working media and compressor parameters; Multi-stage compression; Determining compressor size and working space dimensions; Compressor systems and auxiliary equipment; Flow and pressure control of Piston Compressors; Design analysis of various Reciprocating Compressors types; Fundamentals of Compressor Maintenance;

Calculus examples covering theoretical backgrounds of Reciprocating Compressor working process; Evaluation and analysis of various Reciprocating Compressors, its main parts, systems and auxiliary equipment; Insight in Rotational Piston Compressors; Introduction to the Reciprocating compressor testing and instructions for laboratory exercises (Experimentally determining compressor isentropic and volumetric efficiency; Determining of flow coefficients of compressor plate valve )

Basic knowledge of Thermodynamics

- M. Cvetić, N. Miljic : Handouts from Lectures and Exercises - R. Jankov: Piston Compressors, Faculty of Mechanical Engineering, Belgrade, 5th edition, 1990 - Laboratory for Piston Compressor testing equipped with DAQ measurement equipment and software - Compressor Valve flow test bench

Total assigned hours: 75

New material: 20
Elaboration and examples (recapitulation): 10

Auditory exercises: 6
Laboratory exercises: 4
Calculation tasks: 20
Seminar paper: 0
Project: 0
Consultations: 0
Discussion/workshop: 0
Research study work: 0

Review and grading of calculation tasks: 6
Review and grading of lab reports: 2
Review and grading of seminar papers: 0
Review and grading of the project: 0
Test: 0
Test: 2
Final exam: 5

Activity during lectures: 10
Test/test: 10
Laboratory practice: 15
Calculation tasks: 25
Seminar paper: 0
Project: 0
Final exam: 40
Requirement for taking the exam (required number of points): 30

R. Jankov: Piston Compressors, Faculty of Mechanical Engineering, Belgrade, 5th edition, 1990; Bloch, H. P, Hoefner, J. J.: Reciprocating compressors: operation and maintenance, Butterworth-Heinemann, Woburn, 1996. ISBN 0-88415-525-0.; Brown, R. N.: Compressors: selection & sizing – 2nd ed., Butterworth-Heinemann, Woburn, 1997. ISBN 0-88415-164-6.; Bendler, H., Spengler, H. (ed.): Technisches Handbuch Verdichter, Veb Verlag Technik, Berlin,1986.; Frenkel, M., I.: Kolbenverdichter, Veb Verlag Technik, Berlin,1969.