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Lecturer(s)
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Kracík Jan, Ing. Ph.D.
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Vestfálová Magda, Ing. Ph.D.
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Course content
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1. Introduction to thermodynamics, application of knowledge of thermodynamics in specific technical devices, properties of substances, phase changes, thermodynamic equilibrium of the system, ideal gas and state equation of ideal gas. 2. Basic thermodynamic processes - isobaric, isochoric and isothermal change of state, derivation of the first law of thermodynamics. 3. Specific heat capacities of substances, Mayer's equation, Enthalpy and internal energy of an ideal gas. 4. Definition of entropy, isoentropic and polytropic change, 2. law of thermodynamics, definition of reversible and irreversible state change, Carnot's comparison cycle - direct and inverse. 5. Thermal cycles of petrol and diesel engines, determination of thermal efficiency of cycle, determination of thermal efficiency of cycle. 6. Water vapor, production of water vapor, phase changes, basic reversible processes in steam, irreversible adiabatic expansion and compression. 7. Thermodynamic efficiency of change, throttling of water vapor as an irreversible change, mixing of different states of water vapor. 8. Comparative Rankin thermal cycle, determination of thermal efficiency of thermal cyclen, technical components of thermal cycle, drawing of state changes of cycles in diagrams. 9. Possibilities of technical solution of increasing thermal efficiency of thermal steam cycles, limits of use and future orientation of increasing thermal efficiency, demonstration of use of cycles in specific technical devices. 10. Mixtures of ideal gases. Methods for determining the composition. State variables, mixing processes, mixtures of gases and vapors - humid air. 11. Physical quantities of humid air. Solution of isobaric processes using a diagram of humid air, explanation of basic concepts. 12. Mollier's diagram and its significance, humid air treatment - drying, humidification, etc., use of basic humid air treatment in air conditioning equipment: closed and open air conditioning cycle. 13. Thermokinematics - explanation of basic principles of heat transfer, explanation of basic terms: temperature gradient. 14. Fourier's law and Newton's law in application to heat transfer. 15. Heat transfer by conduction in a planar and cylindrical wall, heat conduction by a composite wall, influence of thermal insulation on the total heat flux density. 16. Free and forced convection of heat, forced convection - definition and use of similarity criterion numbers, concrete examples of solutions, forced convection, Newton's relation for determining the density of heat transfer by forced convection. 17. Heat transfer by free convection, definition and use of similarity criterion numbers. 18. Overall heat transfer - basic relations and a demonstration of the calculation of the overall heat transfer problem, determination of the influence of parameters on the total heat flux density by overall heat transfer. 19. Heat transfer by radiation - thermal radiation, definition of black body, Stefan-Boltzman's law, Planck's law, surface emissivity, black surface, greenhouse effect. 20. Heat exchangers, the most common design solutions of heat exchangers, classification of heat exchangers. 21. Parallel and counterflow heat exchanger, example of determination and calculation of heat exchanger, evaporator and condenser.
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Learning activities and teaching methods
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Monological explanation (lecture, presentation,briefing), Lecture, Practicum
- Class attendance
- 70 hours per semester
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Learning outcomes
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Thermodynamic laws, thermodynamics of ideal gas, solving simple processes and cycles. Thermodynamics of real gases and vapours. Mixtures of ideal gases. Humid air. Selected irreversible processes. Fundamentals of heat transfer (conduction, convection and radiation).
Basic knowledge in the thermodynamics and heat transfer.
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Prerequisites
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Exams in Mathematics and Physics are required.
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Assessment methods and criteria
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Combined examination
Credit: maximum 20% excused absence with substitute processing of the missing substance, successful completion of tests. Exam: demonstration of knowledge of the discussed topics, the condition for participation in the exam is to obtain a credit.
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Recommended literature
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Advances in Industrial Heat Transfer. CRC, 2012. ISBN 9781439899076.
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BAEHR, Hans Dieter, Karl STEPHAN a Nicola Jane PARK. Heat and mass transfer. Berlin: Springer, 1998. ISBN 3-540-63695-1.
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JANNA, William S. Engineering heat transfer. Third edition.. Boca Raton: CRC Press, 2009. ISBN 978-1-4200-7202-0.
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Kalčík, J., Sýkora, K.:. Technická termomechanika.. Academia, Praha, 1973.
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NOŽIČKA, Jiří. Základy termomechaniky. Praha: Vydavatelství ČVUT, 2004. ISBN 80-01-02409-1.
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Petříková, M., Kryštůfek, P.:. Tabulky pro termodynamiku. TU Liberec, 2013. ISBN 978-80-7372-945-5.
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Středa, I., Sazima, M., Doubrava, J.:. Termomechanika. ČVUT Praha, 1995.
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STŘEDA, Ivo. Základy rovnovážné termodynamiky. Vyd. 3.. Liberec: Technická univerzita v Liberci, 2009. ISBN 978-80-7372-459-7.
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Vestfálová, M., Středa, I.:. Technická dynamika plynů. Liberec, 2004.
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