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Lecturer(s)
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Graja Roman, Ing.
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Tesař Miroslav, doc. Ing. CSc.
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Course content
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Basic terms and basic laws . The equations of state for an ideal gas Boltzmann and gas constant. Amount of Matter and Avogadro number Definition of the equation of state Heat, volume and technical work, internal energy, enthalpy, of volume and technical work, p-v diagrams Heat cycles, thermal efficiency, work Line integral around a circular path The first law of Thermodynamics and its two mathematical forms First Law for a closed systém Ilustration of the first law a cyclical process Cyclical work and poincare theorem Internal energy and enthalpy Adiabatic work addition-constant volume Adiabatic work addition - konstant pressure . Integral and diferential forms of conservation equations Continuity and Bernoulli for equations The Prandtl tube, the speed of sound, the Mach numer Isentropic flaw of an ideal gas and steam throught anarrowing opening and the Laval notule and thein calculation Tle Laval notule with various input conditions and the effect of back pressure Heat cycles, thermal efficiency, work Tle sekond law of thermodynamics, entropy and general equations for entropy changes Reversible processes The Carnot cycle T-s diagram Tle reversed and irreversible Carnot cycle Irreversible processes in technical practise Tle cycles of heat gas and heat steam engines Combustion engines, gas turbinek, reaction engines Compressors Tle cycles of cooling device and heat pumps Stationary overall heat transfer through a planar or cylindrical single or multiple player wall Heat exchangers, the mean temperature logarithmic gradient, algorithms for calculation Heat transfer by radiation Tle basic laws Radiation between two paralel walls
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Learning activities and teaching methods
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Monologic (reading, lecture, briefing), Work with text (with textbook, with book), Projection
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Learning outcomes
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The course objective is for students to acquire competency to carry out technical computation in the area of thermodynamics and heat transfer. Students will apply theoretical knowledge to machinery and technological fields. Students will acquire skills to carry out technical computation in the area of thermodynamics and heat transfer : Computation of heat engines and cooling systems. Heat balance of material and machine systems, in gases, vapors, buildings and technological processes.
The course is concerned with the following topics: Basic quantities of state. Equation of state of an ideal gas. Mixtures of ideal gases. The First Law of Thermodynamics- heat, work, internal energy, enthalpy. The Second Law of thermodynamics, entropy. Reversible and irreversible processes of ideal gases. The thermodynamics of vapour. Vapour tables and diagrams. The Clausius-Clapeyron Equation. Thermodynamic processes in vapours. Thermodynamics of humid/atmospheric air. Definitive quantities, tables, diagrams. Isobaric arrangements of air, evaporation from a free surface. Thermodynamics of flow of gases and vapors. Adiabatic flow through nozzles. The cycles of heat gas and heat steam engines. Compressors. The cycles of cooling devices and heat pumps. Fundamentals of heat transfer. Stationary and transient heat conduction, internal sources. Heat transfer by convection, similarity theory. Overall heat transfer, heat exchangers. Heat transfer by radiation. Radiation between between mutually surrounding surfaces.
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Prerequisites
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Mathematics, Physics, Hydrodynamics
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Assessment methods and criteria
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Oral examination, Written examination
Attendance at seminars is compulsory. Students are to pass two tests during a term. In a case of absence (in justified cases) students are given an extra test.
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Recommended literature
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Kalčík J., Sýkora K. Technická termomechanika.. Academia Praha, 1973.
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Kříž R., Vávra P. Mechanika tekutin. Termomechanika. Tekutinové mechanismy.. PN Praha, 1994. ISBN 80-85872-58-1.
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Sazima M., Kmoníček V., Bayer Z. Teplo. SNTL Praha, 1989.
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