Course detail

Thermomechanics

FAST-BTA015Acad. year: 2022/2023

The course is focused on thermomechanics, heat transfer and fluid mechanics and mechanics for engineering applications.

Theory of heat transfer in building services. Thermal properties of materials, elementary heat processes. Vapour and conditions of vapour. Thermal processes, their dynamic, analytical and numerical solution. Heat transfer by natural and forced convection. Heat transfer by phase changes. Heat transfer by radiation. Principles of heat exchangers in building services. Special problems in heat and mass transfer in building services.

Language of instruction

Czech

Number of ECTS credits

5

Mode of study

Not applicable.

Guarantor

prof. Ing. Ondřej Šikula, Ph.D.

Department

Institute of Building Services (TZB)

Learning outcomes of the course unit

Not applicable.

Prerequisites

Knowledge of basic physical quantities, theory (kinetic theory of gases, basic state equations of fluids) and physical laws in the field of heat and substance transfer. Basic knowledge of integral and differential calculus.

Co-requisites

Not applicable.

Planned learning activities and teaching methods

Not applicable.

Assesment methods and criteria linked to learning outcomes

Not applicable.

Course curriculum

1. Introduction to thermomechanics, laws of thermodynamics, thermomechanical quantities, thermomechanical properties of materials, thermal diagrams, basic thermodynamic processes.
2. Stationary heat conduction, thermo-technical properties of substances, Fourier law, thermal diffusion equation, stationary heat conduction by cylindrical wall and flat internal heat source, minimum and critical thickness of pipe insulation.
3. Non-stationary heat conduction, criteria of thermomechanical similarity in heat conduction. Symmetrical cooling and heating of a wall and a cylinder. Cooling and heating of the semi-solid. Heat conduction in a rib.
4. Heat transfer in natural and forced convection. Thermomechanical similarity criteria for heat transfer. Heat transfer by a external forced convection. Forced and natural convection in a closed pipe.
5. Heat transfer by radiation. Optical properties of surfaces. Laws of radiation.
6. Sharing of heat during group changes. Changes in melting - solidification, evaporation - condensation. Boiling and condensation phases. Convective vapor and condensation in the pipe.
7. Heat exchangers. Countercurrent, countercurrent, crossover and changeover exchangers. NTU and LMTD methods of calculation heat exchangers.
8. Hydrostatic and relative stady stay of fluids.
9. Hydrodynamics. Equations of Continuity, Euler, Navier-Stokes and Bernulli's equations. Principles of velocity and pressure measurement.
10. Laminar and turbulent flow of fluids. Darcy-Weisbach and Reynolds equations.
11. Pipe pressure losses. Hydraulically smooth and rough piping. Flow of Liquids from Containers.
12. Unsteady motion of fluids. The two-phase free surface flow.
13. Inner and outer aerodynamics. Potential flow, free flow, flow past an obstacle, Magnus phenomenon, air jet interaction.

Work placements

Not applicable.

Aims

Not applicable.

Specification of controlled education, way of implementation and compensation for absences

Extent and forms are specified by guarantor’s regulation updated for every academic year.

Recommended optional programme components

Not applicable.

Prerequisites and corequisites

Not applicable.

Basic literature

DRÁBKOVÁ, Sylva, 2008. Mechanika tekutin. 1. Ostrava: Vysoká škola báňská - Technická univerzita. ISBN 978-80-248-1508-4. Dostupné také z: https://cdrive.vsb.cz/index.php/s/TSQKDOuJhZFnyI6 (CS)
GEBAUER, Günter, 1996. Termika pro TZB. Základní úlohy v příkladech. Brno: Vysoké učení technické v Brně, 56 s. ISBN 80-214-0745-X. (CS)
INCROPERA, Frank P., David P. DEWITH, Theodore L. BERGMANN a Lavine ADRIENNE S., 2007. Introduction to heat transfer. 5th ed. Danvers: John Wiley, 901 s. ISBN 978-0-471-45727-5. (EN)
VDI-Wärmeatlas: Berechnungsblätter für den Wärmeübergang, 2002. 9., überarb. und erw. Aufl. Berlin: Springer, 1 sv. (různé stránkování). ISBN 35-404-1200-X. (DE)
2021 ASHRAE Handbook -- Fundamentals (SI), 2021. Atlanta: ASHRAE. ISBN 978-1-947192-90-4. (EN)
JANALÍK, Jaroslav a Pavel ŠŤÁVA. MECHANIKA TEKUTIN. 1. Ostrava: Vysoká škola báňská - Technická univerzita. Dostupné také z: https://cdrive.vsb.cz/index.php/s/xb3FjosMqUXlaiS (CS)
JÍCHA, Miroslav, 2001. Přenos tepla a látky. Brno: CERM, 160 s. ISBN 80-214-2029-4. (CS)
NAKAYAMA, Y. a R. F. BOUCHER, 1999. Introduction to fluid mechanics. New York. ISBN 03-406-7649-3. (EN)
PAVELEK, Milan, 2011. Termomechanika. Brno: Akademické nakladatelství CERM, 192 s. ISBN 978-80-214-4300-6. (CS)

Recommended reading

Not applicable.

Classification of course in study plans

  • Programme BPC-EVB Bachelor's 2 year of study, summer semester, compulsory

Type of course unit

 

Lecture

26 hod., optionally

Teacher / Lecturer

prof. Ing. Ondřej Šikula, Ph.D.

Syllabus

1. Introduction to thermomechanics, laws of thermodynamics, thermomechanical quantities, thermomechanical properties of materials, thermal diagrams, basic thermodynamic processes. 2. Stationary heat conduction, thermo-technical properties of substances, Fourier law, thermal diffusion equation, stationary heat conduction by cylindrical wall and flat internal heat source, minimum and critical thickness of pipe insulation. 3. Non-stationary heat conduction, criteria of thermomechanical similarity in heat conduction. Symmetrical cooling and heating of a wall and a cylinder. Cooling and heating of the semi-solid. Heat conduction in a rib. 4. Heat transfer in natural and forced convection. Thermomechanical similarity criteria for heat transfer. Heat transfer by a external forced convection. Forced and natural convection in a closed pipe. 5. Heat transfer by radiation. Optical properties of surfaces. Laws of radiation. 6. Sharing of heat during group changes. Changes in melting - solidification, evaporation - condensation. Boiling and condensation phases. Convective vapor and condensation in the pipe. 7. Heat exchangers. Countercurrent, countercurrent, crossover and changeover exchangers. NTU and LMTD methods of calculation heat exchangers. 8. Hydrostatic and relative stady stay of fluids. 9. Hydrodynamics. Equations of Continuity, Euler, Navier-Stokes and Bernulli's equations. Principles of velocity and pressure measurement. 10. Laminar and turbulent flow of fluids. Darcy-Weisbach and Reynolds equations. 11. Pipe pressure losses. Hydraulically smooth and rough piping. Flow of Liquids from Containers. 12. Unsteady motion of fluids. The two-phase free surface flow. 13. Inner and outer aerodynamics. Potential flow, free flow, flow past an obstacle, Magnus phenomenon, air jet interaction.

Exercise

26 hod., compulsory

Teacher / Lecturer

Ing. Pavel Uher, Ph.D.
Ing. Petr Blasinski, Ph.D.
Ing. Lucie Horká, Ph.D.

Syllabus

1. Introduction to thermomechanics, laws of thermodynamics, thermomechanical quantities, thermomechanical properties of materials, thermal diagrams, basic thermodynamic processes. 2. Stationary heat conduction, thermo-technical properties of substances, Fourier law, thermal diffusion equation, stationary heat conduction by cylindrical wall and flat internal heat source, minimum and critical thickness of pipe insulation. 3. Non-stationary heat conduction, criteria of thermomechanical similarity in heat conduction. Symmetrical cooling and heating of a wall and a cylinder. Cooling and heating of the semi-solid. Heat conduction in a rib. 4. Heat transfer in natural and forced convection. Thermomechanical similarity criteria for heat transfer. Heat transfer by a external forced convection. Forced and natural convection in a closed pipe. 5. Heat transfer by radiation. Optical properties of surfaces. Laws of radiation. 6. Sharing of heat during group changes. Changes in melting - solidification, evaporation - condensation. Boiling and condensation phases. Convective vapor and condensation in the pipe. 7. Heat exchangers. Countercurrent, countercurrent, crossover and changeover exchangers. NTU and LMTD methods of calculation heat exchangers. 8. Hydrostatic and relative stady stay of fluids. 9. Hydrodynamics. Equations of Continuity, Euler, Navier-Stokes and Bernulli's equations. Principles of velocity and pressure measurement. 10. Laminar and turbulent flow of fluids. Darcy-Weisbach and Reynolds equations. 11. Pipe pressure losses. Hydraulically smooth and rough piping. Flow of Liquids from Containers. 12. Unsteady motion of fluids. The two-phase free surface flow. 13. Inner and outer aerodynamics. Potential flow, free flow, flow past an obstacle, Magnus phenomenon, air jet interaction.