| Course Unit Code | 338-0510/02 |
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| Number of ECTS Credits Allocated | 5 ECTS credits |
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| Type of Course Unit * | Compulsory |
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| Level of Course Unit * | Second Cycle |
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| Year of Study * | First Year |
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| Semester when the Course Unit is delivered | Summer Semester |
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| Mode of Delivery | Face-to-face |
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| Language of Instruction | Czech |
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| Prerequisites and Co-Requisites | Course succeeds to compulsory courses of previous semester |
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| Name of Lecturer(s) | Personal ID | Name |
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| DRA10 | doc. Ing. Sylva Drábková, Ph.D. |
| RAU01 | Ing. Jana Jablonská, Ph.D. |
| BLE02 | doc. Ing. Tomáš Blejchař, Ph.D. |
| Summary |
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In this course students learn the technique of pumping equipment. Subject includes both theoretical and computational part. The attention is focused on pump parameters, typical features of the theoretical and actual characteristics of pumps, their changes with the operating parameters. Attention is paid to selection of a pump for the specified hydraulic system, control of the pump performance, definition of NPSH, pump cavitation, the basic components and constructions of pumps, typing and standardization of pumps. The laboratory work is aimed to investigation of pump characteristic curve, and also characteristics of two pumps of the same type in parallel and serial cooperation.
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| Learning Outcomes of the Course Unit |
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| In this course students learn the technique of pumping equipment. The attention is focused mainly on the hydrodynamic pumps. The aim is to understand the basic function of the pump's behavior in different operating conditions, cavitation, radial and axial force characteristics of the pump. The course is also focused on the principles of design of main pump parts (impeller, coils, distributors), including the use of numerical modeling of flow. |
| Course Contents |
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1. Introduction, pumping system, parameters, requirements for specific pump energy in terms of hydro-transport system, piping characteristics, system operating point.
2. Division of pumps, principle of operation of HS machines, piston pump - description, operation, definition of basic parameters, characteristics, characteristic properties, application area.
3. HS pumps with rotating working elements, description of operation, characteristics, field of application.
4. Principle of operation of HD machines, definition of basic parameters, characteristics, properties, field of application. Kinematic conditions in impeller, velocity triangles, Euler pump equation.
5. Theoretical pump characteristic for infinite number of blades, reduction of power due to finite number of blades, actual pump characteristic. Determination of pump characteristic by measurement. 6. Pump losses, disc losses, resulting efficiency, axial and radial force, its prediction and reduction.
7. Hydrodynamic similarity, conditions of HD similarity, similarity criteria, speed, specific speed, volumetric speed. Conversion relationships, meaning and use. Typing.
8. Similar operating states of the pump, speed control, impeller rotation, modeling, conversion from model to work, importance and use.
9. Hydraulic design of radial pump impeller
10. Basics of hydraulic design of stator parts of pump (volute, )
11. Influence of physical properties of pumped liquid on characteristics, characteristics of series and parallel pump cooperation.
12. Suction ability of the pump, cavitation, cavitation characteristics, determination of geodetic suction head of the pump. Testing of pumps.
13. Basic structural elements (seals, bearings, couplings)
14. Typical design of hydrodynamic pumps, classification in terms of actual specific energy.
Program of exercises and seminars + individual work of students
1. Working point of the pumping system - implementation of logic functions into the calculation, solver
2. Analysis of pump measured data, examples of regression of functions of several variables
3. Pumping system regulation, affine parabola, use of affine relations for calculation of pumping system range of regulation
4. Theoretical characteristics of pump for infinite number of blades, Euler pump equation, speed triangles
5. Radial force, calculation of radial force acting on impeller
6. Dimensionless pump characteristics, Erhart diagram, pumping efficiency
7. Recalculation of characteristics during pumping of viscous liquid
8. Laboratory measurements - measurement of the characteristics of one pump and two pumps of the same type in series and parallel cooperation
9. Design of impeller according to ČSN
10. Preparing of final project, design of impeller and spiral for given input parameters H, Q and n. Calculation in * .xlsx, drawing of impeller and spiral in * .dwg, eventually 3D geometric model
11. Individual work on the final project, consultation
12. Individual work on the final project, consultation
13. Individual work on the final project, consultation
14. Submission of the project, written credit work
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| Recommended or Required Reading |
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| Required Reading: |
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GÜLICH, J. F.: Centrifugal Pumps, Second Edition, Springer, 2010 964p ISBN 978-3-642-12823-3.
BRENNEN, C. E. Hydrodynamics of Pumps. Cambridge 1994, 287p. ISBN 978-1-107-00237-1 |
MELICHAR, J., BLÁHA,J. Problematika soudobé čerpací techniky. Praha: ČVUT, 2007. ISBN 978-80-01-03719-5.
BLÁHA, J., BRADA, K. Příručka čerpací techniky. 1. vyd. Praha: ČVUT, 1997. 289 s. ISBN 80-01-01626-9.
BLÁHA, J.; BRADA, K. Hydraulické stroje. 1st edition Praha: SNTL, 1992.747p. ISBN 80-03-00665-1.
BLEJCHAŘ, T., DRÁBKOVÁ, S.:Čerpací technika a potrubí, návody do cvičení. Ostrava: VŠB-TUO Ostrava, 2010.76 s. ISBN 978-80-248-2205-1.
PAVLOK, B., DRÁBKOVÁ, S., RAUTOVÁ, J. Potrubní systémy a armatury. Studijní opora. Ostrava: VŠB-TUO Ostrava 2011. 249 s. ISBN 978-80-248-2518-2.
GÜLICH, J. F.: Centrifugal Pumps, Second Edition, Springer, 2010 964p ISBN 978-3-642-12823-3.
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| Recommended Reading: |
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| BRENNEN, C. E. Hydrodynamics of Pumps. Cambridge 1994, 287p. ISBN 978-1-107-00237-1 |
PACIGA, A. a kol. Čerpací technika. SNTL Praha.
BLÁHA, J., BRADA, K. Příručka čerpací techniky , ČVUT Praha, 1997.
PIVODA, B., ŠÁLEK, J. Čerpací stanice. SNTL Praha, 1982.
STRÝČEK, O., GANČO, N. Čerpadlá (hydraulický výpočet a konstrukce). Bratislava, 1978.
ŠEREK, M., LHOTÁKOVÁ, Z. Inženýrské sítě. SNTL Praha, 1981.
BRETTSCHNEIDER, A. a kol. Příručka čerpací techniky. SNTL Praha, 1968.
BRENNEN, C. E. Hydrodynamics of Pumps. Cambridge 1994, 287p. ISBN 978-1-107-00237-1.
Firemní literatura. |
| Planned learning activities and teaching methods |
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| Lectures, Tutorials, Experimental work in labs |
| Assesment methods and criteria |
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| Task Title | Task Type | Maximum Number of Points
(Act. for Subtasks) | Minimum Number of Points for Task Passing |
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| Exercises evaluation and Examination | Credit and Examination | 100 (100) | 51 |
| Exercises evaluation | Credit | 30 | 20 |
| Examination | Examination | 70 | 21 |