Fundamentals of Heat Engineering

Major: Sustainable Energy Systems
Code of subject: 6.141.09.O.017
Credits: 8.00
Department: Heat Engineering and Thermal and Nuclear Power Plants
Lecturer: Associate Professor, Ph.D. Martynyak-Andrushko Marta
Semester: 3 семестр
Mode of study: денна
Мета вивчення дисципліни: Students' acquisition of general concepts and laws of technical thermodynamics, assimilation of the regularities of the course of various thermodynamic processes, and the peculiarities of implementing thermodynamic cycles, as the basis of thermal power engineering. As a result of studying the discipline, students must master the basics of one of the general technical disciplines necessary for developing production and technical, design, construction, and research tasks.
Завдання: Program competencies - The ability to solve complex, specialized tasks and practical problems related to operating electrical systems and networks, the electrical part of stations and substations, and high-voltage equipment. - Ability to solve complex, specialized tasks and practical problems related to problems of production, transmission, and distribution of electric energy. Program learning outcomes -To know and understand the theoretical foundations of metrology and electrical measurements, the principles of operation of automatic control devices, relay protection, and automation, to have the skills to perform appropriate measures and use these devices to solve professional tasks. -To know the basics of electromagnetic field theory and methods of calculating electric circuits and be able to use them to solve practical problems in professional activities. UM7) Understand the main principles and tasks of technical and environmental safety of electrical engineering and electromechanics objects and consider them when making decisions. - The ability to take responsibility for the work performed and achieved the set goal in compliance with the requirements of professional ethics;
Learning outcomes: - the ability to demonstrate knowledge and understanding of the scientific and mathematical principles underlying electricity, electrical engineering and electromechanics. - be able to apply knowledge and understanding to identify, formulate and solve technical problems of a specialty, using known methods - to be able to calculate, design, investigate, exploit, repair, and customize the electrical equipment and equipment typical for the chosen specialty.
Required prior and related subjects: Higher mathematics Physics Chemistry Basics of renewable energy Chemical principles of energy conversion and storage
Summary of the subject: The basics of one of the general technical disciplines necessary for developing production and technical, design, construction, and research tasks are considered. The main focus is on the laws of technical thermodynamics, the assimilation of the regularities of the course of various thermodynamic processes, and the peculiarities of implementing thermodynamic cycles as the basis of thermal power engineering. As a result of studying the discipline, the student must demonstrate the ability to solve specialized tasks and practical problems during professional activity or in the learning process, which involves the application of theories and methods of thermodynamics and heat transfer.
Опис: The basics of heat engineering, its place, and its role in training specialists. Connection of the basics of heat engineering with other fields of knowledge. Internal energy. Entropy. Enthalpy. Work and heat as forms of energy transfer. Graphic representation of work and heat in Pv and Ts coordinates. An ideal gas. Equation of states of ideal gases. The first law of thermodynamics.Definition and analytical expression of the first law of thermodynamics. Equation of the first law of thermodynamics for flow. A general method of studying thermodynamic processes. Thermodynamic analysis of isochoric, isobaric, isothermal, adiabatic, and polytropic processes. The second law of thermodynamics. Basic definitions and analytical expression of the second law of thermodynamics. Direct and inverse Carnot cycles. Real gas. Properties of real gases. Water vapor. Thermodynamic tables of water and water vapor. PV –, TS –, HS – diagrams of water vapor. Calculation of thermodynamic processes of water vapor using tables and HS diagrams. Moist air. Definition of the concept of "moist air." The main values characterize the state of moist air. Hd - diagram of moist air. Thermodynamics of the flow. Leakage and throttling of gases and vapors. Substantive provisions. Flow equation. Flow rate and work done by the body. Critical pressure ratio. Critical mode. Laval nozzle. Gas compression processes in compressors. Classification of compressors and the principle of operation.Cycles of internal combustion engines. Cycles of gas turbine plants and steam power plants. Basic concepts and definitions of heat transfer theory. Heat transfer by thermal conduction, convection, and thermal radiation. Complex heat exchange. Thermal conductivity. Fourier's law. Coefficient of thermal conductivity. Convective heat exchange. Newton-Richmann equation. Coefficient of heat transfer by convection. Differential equation of heat transfer. Basics of the theory of similarity. The physical content of the main similarity criteria. Heat transfer during the movement of the medium. Heat exchange by radiation. Planck's, Stefan-Boltzmann's, and Kirchhoff's laws of thermal radiation. Heat transfer.Heat transfer through flat and cylindrical multilayer walls. Basics of thermal calculation of heat exchange devices. Classification, purpose, and schemes of heat exchangers. Design and verification of thermal calculations of heat exchangers.Industrial heat engineering. Types of organic fuels and their characteristics. Classification of fuels. Elemental composition of fuels. The heat of combustion. Excess air factor.
Assessment methods and criteria: • written reports on laboratory work, reports on practical work, oral questioning (40%) • final control (control measure - exam): written and oral form (60%)
Критерії оцінювання результатів навчання: Diagnostics of students knowledge is carried out with the help of an oral survey in lecture, practical and laboratory classes.
Порядок та критерії виставляння балів та оцінок: 100-88 points - certified with an “excellent” grade - High level: the student demonstrates an in-depth mastery of the conceptual and categorical apparatus of the discipline, systematic knowledge, skills and abilities of their practical application. The mastered knowledge, skills and abilities provide the ability to independently formulate goals and organize learning activities, search and find solutions in non-standard, atypical educational and professional situations. The applicant demonstrates the ability to make generalizations based on critical analysis of factual material, ideas, theories and concepts, to formulate conclusions based on them. His/her activity is based on interest and motivation for self-development, continuous professional development, independent research activities, implemented with the support and guidance of the teacher. 87-71 points - certified with a grade of “good” - Sufficient level: involves mastery of the conceptual and categorical apparatus of the discipline at an advanced level, conscious use of knowledge, skills and abilities to reveal the essence of the issue. Possession of a partially structured set of knowledge provides the ability to apply it in familiar educational and professional situations. Aware of the specifics of tasks and learning situations, the student demonstrates the ability to search for and choose their solution according to the given sample, to argue for the use of a particular method of solving the problem. Their activities are based on interest and motivation for self-development and continuous professional development. 70-50 points - certified with a grade of “satisfactory” - Satisfactory level: outlines the mastery of the conceptual and categorical apparatus of the discipline at the average level, partial awareness of educational and professional tasks, problems and situations, knowledge of ways to solve typical problems and tasks. The applicant demonstrates an average level of skills and abilities to apply knowledge in practice, and solving problems requires assistance, support from a model. The basis of learning activities is situational and heuristic, dominated by motives of duty, unconscious use of opportunities for self-development. 49-00 points - certified with a grade of “unsatisfactory” - Unsatisfactory level: indicates an elementary mastery of the conceptual and categorical apparatus of the discipline, a general understanding of the content of the educational material, partial use of knowledge, skills and abilities. The basis of learning activities is situational and pragmatic interest.
Recommended books: 1. Draganov B.K. Heat engineering / B.H. Draganov, A.A. Volynsky, A.B. Mischenko, Y.M. Written // "INKOS". - Kyiv, 2005. - 504 p. 2. Chepurny M.M. Technical thermodynamics. CHI: Teach manual / М.М. Chepurny, S.Y. Tkachenko // VGTU. - Vinnitsa, 1997. - 109 p. 3. Gnatyshyn Y.M., Kryshtapovich V.I. Heat engineering: Teaching manual. - K .: Knowledge, 2008. - 364 p. 4. Chepurny M.M., Tkachenko S.Y. Fundamentals of technical thermodynamics. Vinnitsa - "Podillya-2000". - 2004 - 352s.
Академічна доброчесність: The policy regarding the academic integrity of the participants of the educational process is formed on the basis of compliance with the principles of academic integrity, taking into account the norms "Regulations on academic integrity at the Lviv Polytechnic National University" (approved by the academic council of the university on June 20, 2017, protocol No. 35).