361-0507/09 – Compressors, Fans and Pumps (KVC)
| Gurantor department | Department of Power Engineering | Credits | 5 |
| Subject guarantor | doc. Ing. Kamil Kolarčík, CSc. | Subject version guarantor | Ing. Zdeněk Šmída, Ph.D. |
| Study level | undergraduate or graduate | | |
| | Study language | English |
| Year of introduction | 2022/2023 | Year of cancellation | |
| Intended for the faculties | USP, FS | Intended for study types | Follow-up Master |
Subject aims expressed by acquired skills and competences
Understanding the working process of compressors and pumps.
Description of processes which characterize energy transformation in compressors and pumps.
Description of elementary energy and economic criteria of energy transformation evaluation.
Discussion of economical and environmental consequences of energy transformation.
Solution proposal of management of power engineering processes in compressors´ and pumps´ stations.
Teaching methods
Lectures
Seminars
Individual consultations
Tutorials
Experimental work in labs
Field trip
Teaching by an expert (lecture or tutorial)
Summary
The subject belongs to a group of subjects which closely follows the subjects of thermomechanics, physics and hydromechanics.
Students acquire basic knowledge and awareness from the field of study the energy transformation in piston compressors, flow machines, dynamics compressors, fans and displacement and dynamics pumps. Creative thinking is further developed in complex theoretical calculations of the individual components of these energy transformation machines. An integral part of the teaching is the practical measurement of the energetic properties at measuring stands in laboratories. The aim of the subject is to form a professional profile of a graduate who will work as a designer of these energy transformation machines respectively as their operator with both technical and economic knowledge of categories and minimal disruption to the environment.
Compulsory literature:
Recommended literature:
Additional study materials
Way of continuous check of knowledge in the course of semester
Questions during lectures
Written worksheets
Demonstration of practical measurements in the laboratory - excursions requiring student activity
Written and oral exam
E-learning
Accompanying videos to individual lecture blocks are made available to students during the semester.
Other requirements
Processing and submission of assigned thematic tasks.
Active participation in classes. The permitted absence is a maximum of 20% of the teaching. Attendance is monitored on an ongoing basis.
Prerequisities
Subject has no prerequisities.
Co-requisities
Subject has no co-requisities.
Subject syllabus:
1. Introduction, repetition of thermomechanics and hydromechanics, a division of energy transformation machines and their use.
2. The compression of the known process? Compression isothermal, isentropic and polytropic with heat input and heat output.
3. Displacement compressors with a reciprocating movement of the piston, the ideal and the real machines.
4. Displacement compressors with the rotary movement of the piston, the shock compression and the shock expansion.
5. The regulation and control of a displacement compressors flow performance and pressure.
6. The ideal stage of radial compressors, a description, the energy transformation, the Euler's equation.
7. The actual stage of radial compressors, shapes of the rotor blades, the efficiency, the compression curve in the enthalpy-entropy diagram, the energy characteristics.
8. The ideal and the actual stage of the axial turbocompressor, the 2D bladed grid, vectors of velocities, basic parameters, angles of the stream, forces acting on a blade profile, the transformation of energy, the Euler's equation, losses, the efficiency of the transformation.
9. The axial fans (single stage in the design of stage: R+S, IS+R, the two-stages fans with the counterrotating rotors), the radial fans, the diagonal fans (Schicht's and Eck's fan).
10. The practical operation of compressor stations, the operating point, the practical measurement of energy characteristics, the humidity of the air, the pumping of the compressor and so on.
11. The regulation and control of a dynamic compressors flow performance and pressure.
12. The theory of the flow machines, the ideal and the actual flow machines, the schemes, description of their operation, the diagrams of velocity and the pressure.
13. The flow of gases and vapors through nozzles, the choice of the nozzles type, the calculation of the nozzles main dimensions, the critical values, the influence of a counterpressure.
14. Pumps - The geodetic height, the total transporting height and the manometric height, the maximum suction height of the pump. The transformation of energy, the operational measurements of the energy characteristics.
15. Parallel and serial cooperation of dynamic machines, the operating point.
Seminar on topics chosen by students
Conditions for subject completion
Occurrence in study plans
Occurrence in special blocks
Assessment of instruction
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