Course Unit Code | 361-0500/06 |
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Number of ECTS Credits Allocated | 4 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 | Winter 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 | There are no prerequisites or co-requisites for this course unit |
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Name of Lecturer(s) | Personal ID | Name |
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| VRT20 | doc. Ing. Mojmír Vrtek, Ph.D. |
Summary |
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The subject deals with refrigeration technology and heat pumps. Students will acquire advanced knowledge and skills in the field of theory and practical realization of reversed thermodynamic cycles, namely compressor and sorption refrigeration cycles, in the field of properties of working substances - refrigerants and antifreeze mixtures incl. their ecological aspects.
Further, the subject deals with the possibility of using heat pumps for utilisation of low-potential heat.
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Learning Outcomes of the Course Unit |
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Students learn to understand the problems of Refrigeration Systems and Heat Pumps.
Students will be able to:
- Explain and define basic concepts discussed in the fields of
- Clarify the links and connections within the given fields and external relations to other areas of energy
- Describe the basic technical equipment used in those fields and explain their principles
They will receive:
- An overview of the terminology
- An overview of the basic technological processes of transfer and transform energy in relevant areas
They will be able to:
- Perform basic energy balance and capacity calculations in the areas of the issue
- Select appropriate ways and methods to achieve the desired objectives in practice |
Course Contents |
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1. Introduction, purpose and importance of refrigeration and heat pump technology, cryogenics. Phase change materials.
2. Methods of achieving low temperatures, the basic theory of refrigeration cycles. Comparative cycles.
3. Steam flow single stage, with the internal heat exchange. Supercritical cycle.
4. Binary mixtures, evaporation, freezing. Heat transfer fluids.
5. Refrigerants - calculation bases. Characteristics of the main types of refrigerants.
6. Two and multistage refrigeration cycles, cascade conection.
7. Gas cycles.
8. Cycles for the liquefaction of gases.
9. Absorption refrigeration cycles - ammonia - water.
10. Absorption refrigeration cycles - water - lithium bromide. Adsorption cycles.
11. The basic elements of refrigeration circuits - compressors, heat exchangers, control, isolation.
12. Heat pumps - types.
13. Connection to heating systems. Proposal for bivalent point and operating mode.
14. Evaluation of the benefits heat pumps in terms of energy, economic and environmental.
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Recommended or Required Reading |
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Required Reading: |
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WHITMAN, W. C; JOHNSON, W. M.; TOMCZYCK, J. A. Refrigeration and Air Conditioning Technology. 5E (5th Bk&CD edition). Thomson Delmar Learning, 2004. ISBN 1401837654.
VRTEK, M. Basics of refrigeration and heat pump systems. Study support [online]. Ostrava : VŠB-TUO, 2022. 128 p. Portable Document Format. Available at https://vsb.sharepoint.com/:b:/r/sites/katedra_361/Sdilene%20dokumenty/vyuka/vrt/CHZaTC/AAA_CHZ%26TC_support_EN.pdf?csf=1&web=1&e=DMkCRI. Non-public access, password will be provided by the teacher.
VRTEK, M. Oxygen plants. Study support [online]. Ostrava : VŠB-TUO, 2022. 25 p. Portable Document Format. Available at https://vsb.sharepoint.com/:b:/r/sites/katedra_361/Sdilene%20dokumenty/vyuka/vrt/CHZaTC/AAA_Oxygen_Plants_support_EN.pdf?csf=1&web=1&e=lD85Hv. Non-public access, password will be provided by the teacher. |
DVOŘÁK, Z. Základy chladicí techniky. Vyd. 1. Praha : SNTL – Nakladatelství technické literatury, 1986. 247s.
alternativně
DVOŘÁK, Z. Základy chladicí techniky. Praha : ČVUT, 1982. 218 s.
PETRÁK, J., PETRÁK, M. Tepelná čerpadla. Praha : ČVUT, 2004. 245 s. ISBN 80-01-03126-8.
WHITMAN, W. C; JOHNSON, W. M.; TOMCZYCK, J. A. Refrigeration and Air Conditioning Technology. 5E (5th Bk&CD edition). Thomson Delmar Learning, 2004. ISBN 1401837654.
VRTEK, M. Chladicí zařízení a tepelná čerpadla. Studijní opora [online]. Ostrava : VŠB-TUO, 2022. 128 s. Portable Document Format. Dostupný na https://vsb.sharepoint.com/:b:/r/sites/katedra_361/Sdilene%20dokumenty/vyuka/vrt/CHZaTC/AAA_CHZ%26TC_opora_CZ.pdf?csf=1&web=1&e=caLZgc. Neveřejný přístup, heslo bude sděleno pedagogem.
VRTEK, M. Kyslíkárny. Studijní opora [online]. Ostrava : VŠB-TUO, 2022. 17 s. Portable Document Format. Dostupný na https://vsb.sharepoint.com/:b:/r/sites/katedra_361/Sdilene%20dokumenty/vyuka/vrt/CHZaTC/AAA_KYSLIKARNY_opora_CZ.pdf?csf=1&web=1&e=S12oc4. Neveřejný přístup, heslo bude sděleno pedagogem. |
Recommended Reading: |
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DOSSAT, R. J.,HORAN, T. J. Principles of refrigeneration. 5th ed. New Jersey: Prentice Hall, 2002. ISBN 0130272701.
Next study materials:
/erasmus/refrig/ - OneDrive of the Department of Power Engineering - non-public access, the password will be provided by the teacher.
/vyuka/vrt/CHZaTC/ - OneDrive of the Department of Power Engineering - non-public access, the password will be provided by the teacher. |
SRDEČNÝ, K., TRUXA, J. Tepelná čerpadla. 1. vydání. Praha : EkoWATT, 2009. 71 s. ISBN 978-80-87333-02-0.
HAVELSKÝ, V., FÜRI, B. Chladiaca technika : základy techniky chladenia a tepelných čerpadiel. 3. přeprac. vyd. Bratislava : Slovenská technická univerzita, 2006. 168 s. ISBN 80-227-2349-5.
DOSSAT, R. J.,HORAN, T. J. Principles of refrigeneration. 5th ed. New Jersey: Prentice Hall, 2002. ISBN 0130272701.
Další podpůrné studijní materiály: OneDrive katedry energetiky - neveřejný přístup, heslo bude sděleno pedagogem. |
Planned learning activities and teaching methods |
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Lectures, Tutorials |
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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Credit and Examination | Credit and Examination | 100 (100) | 51 |
Credit | Credit | 40 | 10 |
Examination | Examination | 60 | 11 |