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Course info
KKE / ZNTO
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Course description
Department/Unit / Abbreviation
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KKE
/
ZNTO
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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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Principles of pressure envelopes design
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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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Long Title
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Principles of design of pressure envelopes for power facilities
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Accredited / Credits
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Yes,
3
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
2
[Hours/Week]
Tutorial
1
[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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No
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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
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Occ/max
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|
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Automatic acceptance of credit before examination
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No
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Summer semester
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0 / -
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0 / -
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1 / -
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Included in study average
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YES
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Winter semester
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0 / -
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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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Summer semester
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Semester taught
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Summer 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
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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 |
No
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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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N/A
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Histogram of students' grades over the years:
Graphic PNG
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XLS
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Course objectives:
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To increase students' knowledge and skills in the design of basic dimensions of power plant components and their control calculations, with particular emphasis on nuclear power plant facilities and their pressure envelopes.
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Requirements on student
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Active paricipation in lectures and tutorials, final test and oral exam (the question set is identical to the topics of the lectures).
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Content
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Topics of lectures according to weeks:
1. Notes on the history of design rules for power equipment in terms of strength, durability and sealing. ASME BPVC, NTD ASI, KTA codes. General principles and requirements for strength calculations.
2. Nomenclature, classification of components. Design, service and test loads. Limit states and failure mechanisms. Plastic analysis, limit analysis, collapse loads. Plastic hinge.
3. Material resistance to sudden failure. Critical brittle temperature. Fatigue limit state - stress approach, strain approach, fracture mechanics approach. Shakedown. Ratcheting.
4. Creep failure limit state. Basic concepts. Larson-Miller parameter. Effect of structural discontinuities and cyclic loading. Bree diagram.
5. Allowable stress. Design of basic dimensions of selected components.
6. Flange connections. Failure mode, sealing, leakage classes.
7. Elastic stress analysis and stress categories. Control calculation for static strength. Discontinuity regions. Limits for groups of stress categories.
8. Notches. Shape factor, effective concentration factor. True and fictitious stress, Neuber's rule.
Control calculation of strength under cyclic loading.
9. Threads of bolted connections. Other factors affecting cyclic fatigue of steels.
10. Control calculation of strength under seismic effects.
11. Protection against internal and external risks. The effect of flying debris. Aircraft crash. Terrorist attack.
12. Crash testing of packaging assemblies containing spent nuclear fuel or other radioactive material.
13. Miscellaneous. Selection of pressure-temperature shock scenarios and thermohydraulic calculations. Schematization of non-integrity and computational evaluation of their acceptability.
Topics of exercises:
1. Repetition of expected professional knowledge and skills. Introduction to the subject.
2. Examples of plastic joints. Examples of plastic and limit analysis using ANSYS Mechanical.
3. Strength examples and fractures in steels. Fatigue damage.
4. Examples of creep strength assessment.
5. Examples of sizing of the cylindrical shell of a pressure vessel, its cover and bottom, throats, etc.
6. Practice calculation of forces in flange joint, design of flange leaf height, design of preload force for a particular gasket.
7. Examples for each group of stress categories. Differences between ASME BPVC and NTD ASI.
8. Examples of calculation of fictitious stresses for a given load block and fatigue damage.
9. Calculation of fatigue damage of bolt threads according to NTD ASI.
10. Examples of the application of FEA for the determination of equipment strength from seismic effects.
11. Examples of target penetrations by flying debris, model aircraft as soft missiles. FEM programs and impact loading.
12. Examples of computational modelling of crash tests and their evaluation.
13. Further examples and repetitions.
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Activities
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Fields of study
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Přes účet gapps jsou studentům poskytovány následující opory:
- Skripty pro ANSYS Mechanical APDL pro vybrané příklady.
- Pomocné skripty pro hodnocení únavového poškození dle NTD ASI.
- Nevydaný učební text: Voldřich J.- Stručný úvod do pevnostní analýzy pro energetické strojírenství, Plzeň 2016.
- Prezentace probírané problematiky.
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Guarantors and lecturers
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Literature
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Extending:
Jawad M.H., Jetter R.I. Design and Analysis of ASME Boiler and Pressure Vessel Components in the Creep range. ASME Press 2009. ASME Press, 2009.
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Extending:
Farr J.R., Jawad M.H. Guidebook for the Design of ASME Section VIII Pressure Vessels. Third Edition, ASME Press 2006. ASME Press, 2006.
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Extending:
Pilkey W., Pilkey D. Peterson's Stress Concentration factors. Third Edition, John Wiley & Sons 2008. John Wiley & Sons, 2008.
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Extending:
Jawad M,H. Structural Analysis and Design of Process Equipment. John Wiley & Sons 1984. John Wiley & Sons, 1984.
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Recommended:
Anderson T.L. Fracture Mechanics - Fundamentals and Applications. Fourth Edition, CRC Press, 2017. CRC Press, 2017.
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Recommended:
bannantine J.A., Commer J.J., Handrock J.L. Fundamentals of Metal Fatigue Analysis. Pearson Education, 1989. Pearson Education, 1989.
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Recommended:
Normativní technická dokumentace A.S.I. - Hodnocení pevnosti zařízení a potrubí jaderných elektráren typu VVER, Sekce III.
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Recommended:
Annaratone D. Pressure Vessel Design. Springer 2007. Springer, 2007.
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On-line library catalogues
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Time requirements
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All forms of study
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Activities
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Time requirements for activity [h]
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Preparation for comprehensive test (10-40)
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10
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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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39
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Total
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79
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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: |
to use basic knowledge of infinitesimal calculus and linear algebra |
to use basic knowledge from B.Sc. courses related to material science, mechanics, elasticity and strength |
Skills - students are expected to possess the following skills before the course commences to finish it successfully: |
to use the skills of a Bc. studies in the field of Mechanical Engineering, Technology and Materials |
Competences - students are expected to possess the following competences before the course commences to finish it successfully: |
N/A |
Basic work with a personal computer. |
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Learning outcomes
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Knowledge - knowledge resulting from the course: |
concerning strength dimensioning, especially in the field of nuclear power facilities |
methods for determining service life and fatigue damage |
Skills - skills resulting from the course: |
to design of basic dimensions of selected components, to apply stress categorization, calculate fatigue damage and perform simple control calculations |
to recognize and formulate a problem related to the integrity and fatigue damage of power equipment from a design perspective
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Competences - competences resulting from the course: |
N/A |
to plan and organise his/her own learning and work activities,
to critically approach sources of information in the field and use them in his/her studies |
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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: |
Test |
Competences - competence achieved by taking this course are verified by the following means: |
Combined exam |
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Teaching methods
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Knowledge - the following training methods are used to achieve the required knowledge: |
Lecture |
Practicum |
Skills - the following training methods are used to achieve the required skills: |
Practicum |
Competences - the following training methods are used to achieve the required competences: |
Individual study |
Discussion |
Task-based study method |
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