Institute of Energy and Biotechnology Engineering STUDY SUBJECT DESCRIPTION

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1 Institute of Energy and Biotechnology Engineering STUDY SUBJECT DESCRIPTION Subject Code: IFEBB018 Title of the study subject in Lithuanian: Termodinamika Subject title: Thermodynamics Volume of the study subject: 5 credits, total 133 hours: classroom work 70 hrs., individual work - 63 hrs. Forms and volume of students work: Forms of classroom work Hours Forms of individual work Hours Lectures 36 Preparation for lectures 8 Laboratory work 24 Preparation for laboratory work 14 Practice 6 Preparation for practice 4 Consultations 2 Individual task 11 Examination 2 Preparation for the examination 26 Purpose of the study subject: Study cycle Study programme Type of the study subject First Agricultural Mechanical Engineering, Agricultural Engineering and Management, Agroenergetics Engineering Obligatory Goal of the study subject: provide basic knowledge about concepts of thermodynamics, taught to understand the transformation of heat into work and vice versa laws, develop cognitive skills to analyze the thermodynamic processes and cycles, apply the theoretical knowledge of water vapour, moist air, the heat exchange in practical use, develop practical skills in internal combustion engines, steam turbines, compressors, refrigeration machines, heat pumps and heat exchangers for thermal calculations. Reinforce capacity to use tables and graphs. Prerequisites: The students should have completed the courses of Mathematics, Physics, Chemistry, Engineering graphics. Outcomes of the study subject: Student s knowledge and understanding: - will know the basic concepts of thermodynamics, basic working body thermal parameters, their units, equation of state; - will know transformation of heat into work and vice versa laws, their formulations and analytical expressions, the basic thermodynamic processes, the practical cycles of internal combustion engines, steam turbines, compressors, refrigeration machines and heat pumps; - will know water vapor, moist air general terms, they describe parameters, steam generation process in P-v and T-s coordinate systems, thermodynamic framework for cogeneration; - will know and understand the heat transfer methods, concepts and general laws applicable to it, the basis for calculation of heat exchangers, the principles of heat transfer intensification. Skills: - will be able to identify gas thermal parameters, specific heat, heat levels, work;

2 - will be able to represent the basic thermodynamic processes, practical cycles graphically and describe them mathematically; - will be able to determine the water vapor, moist air parameters, the practical use of h-s and H-d diagrams; - will be able to determine the heat flow power, where heat transfer takes place conduction, convection, radiation techniques, when there is a composite heat transfer, to perform heatdesign Moral values: - objective self-assessment, provision of continuous training to improve professional competence; - responsible for expression of professional ambition; - self-confidence, self-respect and respect for another person. Assessment criteria for the learning outcomes: absorption of knowledge, knowledge in straightforward additional literature self-study, independent of performance and quality of delivery, the formulation of conclusions and generalizations, specific and carry-over capacity. Contents of the study subject: Lectures ( P- 36 hrs., Kt 8,0 hrs.) P Kt hrs. hrs. 1 Introduction. Basic concepts and definitions. Gas thermal parameters. 2 0,0 The main ideal gas law. Gas equation of state. 2 Gas mixtures. Gas work, its calculation. p-v coordinate system. Gas specific 2 0,5 heat 3 Gas internal energy, enthalpy, entropy. T-s coordinate system. The first 2 0,5 law of thermodynamics, its formulation, analytical expression. 4 Basic thermodynamic processes. 4 0,5 5 Cycles. Direct and reverse cycle. Carnot cycle. The second law of 2 0,5 thermodynamics, its analytical expression. 6 Internal combustion engine cycles 4 0,5 7 Compressors. one degree compressors, their cycles. The theoretical 2 0,5 work of the compressor. Multi-stage compressors, their cycles. 8 Thermodynamics of water vapor, h-s diagram for water vapor and its 2 1,0 application. Rankine cycle, thermodynamic basics of cogeneration. 9 Cooling machines and their cycles. Heat pumps, their cycles. 2 0,5 10 Heat spread methods, temperature field, temperature gradient, heat 2 0,5 flow, Fourier's Law, heat conduction coefficient, flat wall heat conduction, cylindrical wall heat conduction. 11 Heat transfer, boundary layers, Newton's law, heat transfer coefficient, the 2 0,5 similarity theory, criterion-equation. 12 Heat transfer by radiation, basic laws of radiation, heat exchange by 2 0,5 radiation between two solids, shielding. 13 Complex heat exchange, heat transfer, heat transfer coefficient, heat 2 0,5 transfer over a flat and a cylindrical wall. 14 Heat exchangers, classification of heat exchangers, thermal, structural 4 1,0 and hydro-mechanical calculation of heat exchangers, intensification of heat transfer. 15 Moist air, general concepts, moist air parameters, h-d diagram for humid air. 2 0,5 Laboratory work (L 24 hrs., Pl 14 hrs.)

3 L Pl hrs. hrs. 1 Temperature measurement 3 1,0 2 Gauge verification 3 1,0 3 Determination of thermal conductivity coefficient Free convection investigation Forced convection investigation Thermal radiation investigation Pipe heat exchanger investigation Plate heat exchanger investigation 3 2 Practice (Pr 6 hrs., Pl(p) 4 hrs.) Pr hrs. Pl(p) hrs. 1 Calculation of basic thermodynamic processes and internal combustion 2 1,0 engine cycles. 2 Water vapor, moist air parameter setting, practical use of h-s and H-d 2 2 charts. 3 Calculation of heat transfer and heat exchangers. 2 1,0 Themes for course papers (projects): provided. Individual task: Individual task - individual work, in which student performs the calculations of thermal parameters, basic thermodynamic processes, cycles, water vapor parameters, heat transfer and heat exchangers. All students receive a common task conditions for the encrypted data. Teaching methods: During the study process applied visual, video and computer teaching aids. During lectures uses the following methods of study: problematic teaching, situations analysis, interpretation, illustration, demonstration, message. Theoretical knowledge is presented in close connection with practical problems. Laboratory and practice work methods: exercises, coaching and monitoring, experiment, conversation, presentation of individual work. Students will work in small groups to analyze the problems and find their solution strategies. Methods and structure of the cumulative assessment of students achievements: Structure of the cumulative assessment Forms of work Coefficient Deadline of the account Individual task 0,2 2-3 weeks before examination session Laboratory work 0,1 Before examination session Practice work 0,1 Before examination session Examination 0,6 During examination session Work by an individual task is protected 2-3 weeks before examination session, laboratory work should be defended before examination session. Examination shall be in writing, the student receives a ticket, which contains five Students have the opportunity to supplement their knowledge of word. A ten-point criterion-based scale is applied for the cumulative assessment. Links of the outcomes of the study programme with learning outcomes and assessment methods: Assessment Outcomes of the methods of Intended learning outcomes Teaching methods study programme students achievements

4 Knowledge of the theoretical basics of engineering sciences, understanding of their significance, purpose and application principles. Application of the knowledge of mathematics, physics, chemistry and other theoretical subjects of the basics of engineering as well as information technologies in solving study-related tasks. Application and combination of different knowledge in order to achieve a rational combination of environmental, human, technical and technological factors. The skills of planning the actions, searching for various assessment and engineering solutions, spatial thinking and planning. Will know the basic concepts of thermodynamics, basic working body thermal parameters, their units, equation of state; Will know transformation of heat into work and vice versa laws, their formulations and analytical expressions, the basic thermodynamic processes, the practical cycles of internal combustion engines, steam turbines, compressors, refrigeration machines and heat pumps; teaching, teaching, Will know and understand the heat transfer methods, concepts and general teaching, laws applicable to it, the basis for calculation of heat exchangers, the independent readings, principles of heat transfer experiment. intensification. Will be able to identify gas thermal parameters, specific heat, heat levels, work Will be able to represent the basic thermodynamic processes, practical cycles graphically and describe them mathematically; Will be able to determine the heat flow power, where heat transfer takes place conduction, convection, radiation techniques, when there is a composite heat transfer, to perform heat- design Will know thermodynamic framework for cogeneration. Will know the principles of heat transfer intensification. Will be able to perform heat- design teaching, consultations, experiment. teaching, consultations teaching, consultations, experiment independent readings, teaching, discussion, debate. teaching, experiment. teaching, analysis of various of practical work. of practical work. of practical work, laboratory work results. work, laboratory work results. work. work, laboratory work results. questions, laboratory work results. work. A member of the Objective self-assessment, provision of Analysis of various

5 civic society, who is self-confident, understands the importance of selfdevelopment and accepts the responsibility for his/her actions and decisions. A creative, tolerant and open-minded person n. continuous training to improve professional competence; Responsible for expression of professional ambition, self-confidence, self-respect and respect for another person. conversation, discussion. Analysis of various conversation, discussion. Recommended literature: 1. Šiluminė technika / Red. G.Gimbutis. - V.: Mokslas, p. 2. P. Švenčianas,T.Narbutas. Šiluminė technika.- Kaunas: Technologija, p. 3. V. Martinaitis ir kt. Techninė termodinamika ir šilumokaita. Vilnius: Technika, p. 4. Eastor T.D., McConkey A. Applied Thermodynamics for Engineering technologists. Logman scientific Technical, p. 5. F.Metcalfe. Heat Engines and Applied Heat.- GB: Cassell, p. Supplementary literature: 1. Bendroji šiluminė technika / Red. N.Milenskis. - V.: Mintis, p. 2. Драганов Б.Х., Кузнецов А.В., Рудобашта С.П. Теплотехника и применение теплоты в сельском хозяйстве.- Москва: Агропромиздат, с.