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Course info
KEV / SST2
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Course description
Department/Unit / Abbreviation
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KEV
/
SST2
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Academic Year
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2023/2024
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Academic Year
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2023/2024
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Title
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Design of electrical machines 2
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Form of course completion
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Exam
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Form of course completion
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Exam
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Accredited / Credits
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Yes,
5
Cred.
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Type of completion
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Combined
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Type of completion
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Combined
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Time requirements
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Lecture
3
[Hours/Week]
Tutorial
2
[Hours/Week]
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Course credit prior to examination
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Yes
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Course credit prior to examination
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Yes
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Automatic acceptance of credit before examination
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Yes in the case of a previous evaluation 4 nebo nic.
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Included in study average
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YES
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Language of instruction
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Czech, English
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Occ/max
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|
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Automatic acceptance of credit before examination
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Yes in the case of a previous evaluation 4 nebo nic.
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Summer semester
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0 / -
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0 / -
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0 / -
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Included in study average
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YES
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Winter semester
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4 / -
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0 / -
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0 / -
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Repeated registration
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NO
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Repeated registration
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NO
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Timetable
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Yes
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Semester taught
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Winter semester
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Semester taught
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Winter semester
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Minimum (B + C) students
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10
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Optional course |
Yes
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Optional course
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Yes
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Language of instruction
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Czech, English
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Internship duration
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0
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No. of hours of on-premise lessons |
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Evaluation scale |
1|2|3|4 |
Periodicity |
každý rok
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Evaluation scale for credit before examination |
S|N |
Periodicita upřesnění |
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Fundamental theoretical course |
No
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Fundamental course |
Yes
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Fundamental theoretical course |
No
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Evaluation scale |
1|2|3|4 |
Evaluation scale for credit before examination |
S|N |
Substituted course
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None
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Preclusive courses
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N/A
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Prerequisite courses
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N/A
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Informally recommended courses
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N/A
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Courses depending on this Course
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KEV/SNSES
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Histogram of students' grades over the years:
Graphic PNG
,
XLS
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Course objectives:
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The course extends the knowledge of electrical machine design. The content follows the course KEV/SST1. The subject deals with topics: types, origin and localization of ele. losses, ways of dissipating heat dissipation from the machine, modern cooling methods Automovive (Oil, water, jet, etc.), ventilation / cooling systems / circuits, heat loss effects on operating parameters / machine design, temperature calculations of machines and their parts, parasitic phenomena in machines - one-sided mag. thrust, bearing currents, axial thrust
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Requirements on student
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Pre-exam credit: Pass the test, submission and acceptance of semestral project.
Examination: Combined form, knowledge of lectures.
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Content
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1) Operating modes of electrical machines
2) Losses and efficiency of electric machines, generation of heat loss and its location.
3) Parasitic phenomena - skin effect, additional losses, machine asymmetry.
4) Fundamentals of ventilation calculation of electric machines
5) Electrical machines ventilation, hydraulic circuits, pressure sources, pressure drops
6) Hydraulic circuits, methods of solution of ventilation of electric machines - analogy of electrical circuits
7) CFD - modern calculation methods
8) Basics of thermal calculations of electric machines
9) Thermal circuit, heat sources, thermal resistances, interface conditions
10) Replacement heat circuit, assembly of networks, - analogy of electrical circuits
11) Alternative warm electric circuit in transient state
12) Specifics of thermal calculations of various types of electrical machines, interconnection with ventilation calculation
13) Modern calculation methods
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Activities
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Fields of study
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Guarantors and lecturers
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Literature
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Basic:
Juha Pyrhönen, Tapani Jokinen, Valéria Hrabovcová. Design of rotating electrical machines. Chichester, 2014. ISBN 978-1-118-58157-5.
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Basic:
Marius Rosu, et. al. Multiphysics Simulation by Design for Electrical Machines, Power Electronics and Drives. Piscataway, USA, 2018. ISBN 978-1-119-10344-8.
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Basic:
Ondruška, Emil; Maloušek, Antonín. Ventilace a chlazení elektrických strojů točivých. Vyd. 1. Praha : SNTL, 1985.
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Recommended:
Upadhyay, K. G. Design of electrical machines. New Delhi : New Age International Limited Publishers, 2008. ISBN 978-81-224-2282-5.
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Recommended:
List, Vladimír; Hak, Josef. Elektrotechnika II : elektrické stroje. Část 1. 3. přeprac. vyd. Praha : SNTL, 1969.
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Recommended:
Hak, Josef; Ošlejšek, Oldřich. Výpočet chlazení elektrických strojů. 1. díl : fyzikální podklady výpočtu chlazení a ventilační výpočet. Vyd. 1. Výzkumný a vývojový ústav elektrických strojů točivýchBrno, 1973.
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On-line library catalogues
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Time requirements
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Full-time form of study
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Activities
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Time requirements for activity [h]
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Graduate study programme term essay (40-50)
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40
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Preparation for an examination (30-60)
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30
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Contact hours
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65
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Total
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135
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Prerequisites
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Knowledge - students are expected to possess the following knowledge before the course commences to finish it successfully: |
knowledge of the electrical machine |
design of electrical machines |
describe the design of the electrical machine |
Skills - students are expected to possess the following skills before the course commences to finish it successfully: |
apply fundamental mathematical operations |
solve sets of equations with multiple variables |
solve electrical circuits |
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Learning outcomes
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Knowledge - knowledge resulting from the course: |
describe heat sources in thermal circuits |
explain the mechanism of heat transfer inside of the machine |
control the relations necessary for calculation of thermal circuit |
describe ventilation circuits of electric machines |
explain the mechanism of fluid flow inside of the machine |
control the relations necessary for calculations of ventilation circuit |
Skills - skills resulting from the course: |
determine the heat generated inside of given part of the machine |
calculate the thermal conductivity of each part of the machine |
calculate the temperature rise of the machine |
determine the presure loss of the ventilation circuit of the machine |
calculate the pressure situation in the ventilation circuit of the machine |
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Assessment methods
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Knowledge - knowledge achieved by taking this course are verified by the following means: |
Combined exam |
Skills - skills achieved by taking this course are verified by the following means: |
Seminar work |
Project |
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Teaching methods
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Knowledge - the following training methods are used to achieve the required knowledge: |
Lecture |
Practicum |
Individual study |
Skills - the following training methods are used to achieve the required skills: |
Lecture |
Practicum |
Individual study |
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