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Lecturer(s)
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Janáčová Dagmar, prof. Ing. CSc.
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Kolomazník Karel, prof. Ing. DrSc.
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Course content
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1. Introduction to the subject Thermal processes, basic concepts: heat, temperature, driving force, mass and heat balance. 2. Heat transfer by conduction, convection, determination of heat transfer coefficient, dimensionless criteria. 3. Heat sharing - heat transfer. Heat transfer coefficient, heat transfer through a folded plate, folded cylindrical and spherical wall, thermal resistance, thermal insulation. 4. Heat exchangers. Heat transfer coefficient, enthalpy balance of the exchanger, exchanger output, mean logarithmic temperature difference, cocurrent and countercurrent exchanger. 5. Heat transfer by radiation. Stefan-Boltzmann's law. 6. Non-stationary heat transfer by conduction in solids. Fourier equation of heat conduction. Importance. Boundary conditions for the Fourier equation of heat conduction in solids. Thermal conductivity coefficient. Specific notations of individual types of boundary conditions, meaning. 7. Derivation of a non-stationary temperature field for an "infinite plate" by Fourier separation of variables for the boundary condition of the 3rd kind, followed by the 1st dr., When alpha -> to infinity. 8. Derivation of a non-stationary temperature field for an "infinite cylinder for a boundary condition of the 3rd kind 9. Heating and cooling of stirred liquid tanks. Method of calculating the temperature in the tank depending on the time from the heat balance, description of DR. 10. Thermodynamics of ideal gases. Basic state variables of the working substance. Equation of state of an ideal gas. A mixture of ideal gases. 1st law of thermodynamics: heat, work, internal energy, enthalpy. 2. law of thermodynamics, entropy. Reversible and irreversible processes of ideal gases. 11. Thermodynamics of real gases - water vapor. Van der Wals real gas equation of state. Energy quantities of steam and liquid, steam tables, diagrams. 12. Thermodynamics of humid air. Technical diagram of humid air. 13. Air mixing. Enthalpy and moisture balance of humid air. 14. Thermodynamics of gas and vapor flow, expansion, compression. Joule-Thomson effect.
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Learning activities and teaching methods
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Monologic (Exposition, lecture, briefing), Dialogic (Discussion, conversation, brainstorming), Practice exercises, Individual work of students
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| prerequisite |
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| Knowledge |
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| Knowledge from areas: Mathematics I, II Physics |
| Knowledge from areas: Mathematics I, II Physics |
| learning outcomes |
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| know the basics of thermomechanics, transport processes - heat sharing basic mechanisms of heat sharing: conduction, flow, radiation the technical significance of non-stationary heat sharing by conduction in solids thermodynamics of ideal gases thermodynamics of real gases - water vapor, moist air |
| know the basics of thermomechanics, transport processes - heat sharing basic mechanisms of heat sharing: conduction, flow, radiation the technical significance of non-stationary heat sharing by conduction in solids thermodynamics of ideal gases thermodynamics of real gases - water vapor, moist air |
| After completing the course, the student is acquainted with the basics of thermomechanics, the heat transfer transport process. He/she will use the acquired knowledge in related subjects in master's fields: Selected articles from process engineering, Process engineering, Modeling of processing processes. |
| After completing the course, the student is acquainted with the basics of thermomechanics, the heat transfer transport process. He/she will use the acquired knowledge in related subjects in master's fields: Selected articles from process engineering, Process engineering, Modeling of processing processes. |
| Skills |
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| solve problems from heat balances solve problems related to exchanger balances solution of non-stationary temperature fields in a plane plate skills in working with the technical diagram of water vapor and related balance calculations skills in working with the technical diagram of humid air and related balance calculations |
| solve problems from heat balances solve problems related to exchanger balances solution of non-stationary temperature fields in a plane plate skills in working with the technical diagram of water vapor and related balance calculations skills in working with the technical diagram of humid air and related balance calculations |
| teaching methods |
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| Knowledge |
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| Individual work of students |
| Individual work of students |
| Monologic (Exposition, lecture, briefing) |
| Practice exercises |
| Dialogic (Discussion, conversation, brainstorming) |
| Dialogic (Discussion, conversation, brainstorming) |
| Monologic (Exposition, lecture, briefing) |
| Practice exercises |
| assessment methods |
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| Composite examination (Written part + oral part) |
| Composite examination (Written part + oral part) |
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Recommended literature
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Carslaw, H. S. Conduction of heat in solids. 2nd ed. Oxford : Clarendon Press, 1959. ISBN 0-19-853368-3.
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ENENKL, V., RAMÍK, Z. Sdílení tepla IA. Praha : SNTL, 1981.
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Janáčová, D., Charvátová,H., Kolomazník, K., Blaha, A. Procesní inženýrství : transportní, fyzikální a termodynamická data. Univerzita Tomáše Bati ve Zlíně, 2011. ISBN 978-80-7318-997-6.
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KOLAT, P. Přenos tepla a hmoty, FS, VŠB-TU Ostrava, 2001.
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Kolomazník, K. Teorie technologických procesů III. Brno : VUT, 1978.
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R. Byron, W.E. Stewart, E.D. Lightfoot. Trasport Phenomena. J. Wiley and Sons, New York, 1961.
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