Heat and Mass Transfer

Major: Thermal Power Engineering
Code of subject: 6.144.00.O.021
Credits: 6.00
Department: Heat Engineering and Thermal and Nuclear Power Plants
Lecturer: Ph.D., Associate Professor, Tetiana Rуmar
Semester: 4 семестр
Mode of study: денна
Мета вивчення дисципліни: Study of the principles of heat and mass transfer as a complex scientific and engineering discipline, as well as methods of their application for the analysis and calculation of processes occurring at thermal power plants and other heat and power and heat engineering installations; providing students with knowledge in the field of heat and mass transfer, laying the foundation for mastering the core disciplines of the specialty, developing skills and abilities to creatively use the basic laws of heat and mass transfer in solving specific problems in the field of design, adjustment, and maintenance of heat and mass transfer systems. As a result of studying the discipline, students must master the methods of calculating the basic processes of heat and mass transfer: thermal conductivity in structural elements, heat and mass transfer by free and forced convection, two-phase heat and mass transfer, radiation heat transfer, be able to calculate heat exchangers and apply methods of heat transfer intensification.
Завдання: The study of the discipline involves the formation of competencies in students: Integral competence: INT. The ability to solve complex general, specialized tasks and practical problems in the field of heat and power engineering or in the learning process, which involves the application of theories and methods of electrical engineering and is characterized by complexity and uncertainty of conditions. General competencies: GC 2. basic knowledge in the field of thermal power engineering necessary for the development of professionally oriented disciplines; GC 5. ability to apply knowledge in practice; GC 6. ability to search and analyze information from various sources; GC 15. potential for further learning.
Learning outcomes: As a result of the study of the discipline, the education applicant should be able to demonstrate the following programmatic learning outcomes: PLO 2. To know and understand the engineering sciences underlying the specialty «Heat and Power Engineering» of the relevant specialization at the level necessary to achieve other results of the educational program, including a certain awareness of the latest achievements of science and technology in the field of heat and power engineering. Lectures - visualization, express survey of students, practical classes - information-receptive method, reproductive method, laboratory classes - research method; independent work - reproductive method. Current control - completion and defense of practical and laboratory work, oral and frontal questioning. PLO 9. Be able to find the necessary information in technical literature, scientific databases and other sources of information, critically evaluate and analyze it. Lectures - visualization, express survey of students, practical classes - information-receptive method, reproductive method, laboratory classes - research method; independent work - reproductive method. Current control - completion and defense of practical and laboratory work, oral and frontal questioning. PLO 15. Understand the basic properties and limitations of materials, equipment and tools, engineering technologies and processes. Lectures - visualization, express survey of students, practical classes - information-receptive method, reproductive method, laboratory classes - research method; independent work - reproductive method. Current control - completion and defense of practical and laboratory work, oral and frontal questioning.
Required prior and related subjects: Prerequisites: - Higher mathematics, - Physics, - Technical thermodynamics; co-requisites: - Heat-mass Exchange Machines of Thermal Power Plants, - Heat-mass Exchange Machines of Industrial Enterprises, - Thermal Power Plants, - Boiler Units of Thermal Power Plants, - Boiler Units of Heat Power Engineering Units.
Summary of the subject: The theory of heat and mass transfer is the scientific basis for methods of calculation, design, and operation of heat exchangers, pipelines, thermal insulation, heat supply systems, steam generators, steam power equipment systems, internal combustion engines, and means of measuring and controlling thermal processes.
Опис: The main types of heat transfer. Thermal conductivity at steady state and boundary conditions of the first kind. Processes of heat transfer. Non-stationary heat conduction. Fundamentals of the theory of convective heat transfer. Heat transfer in the case of fluid movement in channels. Heat transfer due to forced transverse washing of a pipe and a bundle of pipes. Heat transfer due to changes in the aggregate state of matter. Radiant heat transfer. Basic laws of thermal radiation. Heat exchange devices. Diffusion and mass transfer processes in two-component media.
Assessment methods and criteria: Assessment of knowledge is provided by current and examination controls. 1. Current control in practical and laboratory classes is carried out in order to determine the readiness of students for classes in the following forms: - selective oral survey before the start of classes. - frontal standardized survey with tests lasting 5-10 minutes. - frontal check of homework completion. - Calling individual students to the board to solve problems independently, written answers to individual questions asked during the laboratory class. - assessment of student activity in the course of classes, proposals made, original solutions, clarifications and definitions, additions to previous answers, etc. 2. Examination control is carried out in order to determine the level of students' knowledge in the following forms: - a frontal standardized survey using tests posted in the VNS of Lviv Polytechnic, lasting 20 minutes. - written examination paper lasting 70 minutes. - oral examination to assess the level of knowledge acquisition and achievement of learning outcomes. It consists in finding out the level of knowledge of students through direct contact with them during a test interview. The oral examination involves the teacher asking questions (tasks), preparing students to answer and demonstrate their knowledge, correcting and self-controlling the answers given in the process, analyzing and evaluating them.
Критерії оцінювання результатів навчання: - work in practical classes - 15 points; - work in laboratory classes - 15 points; - examination control - 70 points (written component - 60 points, oral component - 10 points). Total for the discipline - 100 points.
Порядок та критерії виставляння балів та оцінок: 100–88 points – (“excellent”) is awarded for a high level of knowledge (some inaccuracies are allowed) of the educational material of the component contained in the main and additional recommended literary sources, the ability to analyze the phenomena being studied in their interrelationship and development, clearly, succinctly, logically, consistently answer the questions, the ability to apply theoretical provisions when solving practical problems; 87–71 points – (“good”) is awarded for a generally correct understanding of the educational material of the component, including calculations, reasoned answers to the questions posed, which, however, contain certain (insignificant) shortcomings, for the ability to apply theoretical provisions when solving practical tasks; 70 – 50 points – (“satisfactory”) awarded for weak knowledge of the component’s educational material, inaccurate or poorly reasoned answers, with a violation of the sequence of presentation, for weak application of theoretical provisions when solving practical problems; 49-26 points - ("not certified" with the possibility of retaking the semester control) is awarded for ignorance of a significant part of the educational material of the component, significant errors in answering questions, inability to apply theoretical provisions when solving practical problems; 25-00 points - ("unsatisfactory" with mandatory re-study) is awarded for ignorance of a significant part of the educational material of the component, significant errors in answering questions, inability to navigate when solving practical problems, ignorance of the main fundamental provisions.
Recommended books: 1. Mysak Y.S. Fundamentals of heat and mass transfer: Textbook / Y.S. Mysak, I.M. Ozarkiv, M.Y. Kuznetsova, I.A. Sokolovskyi, V.M. Kuzma - Lviv: SPF "Ukrainian Technologies", 2016. 200 p. 2. Labai V.Y. Examples and problems from the course of heat and mass transfer. Study guide. Lviv: Lviv Polytechnic Publishing House, 2017. 228 p. 3. Labai V.Y. Heat and mass transfer: Textbook for universities. - Lviv: Triada Plus, 2004. - 260 p. 4. Pogorelov A.I. Heat and mass transfer (basics of theory and calculation): A textbook for universities. 2nd edition. - Lviv: Novyi Svit - 2000, 2004. - 144 p. 5. Budnik A.F. Heat and mass transfer in processes and materials of material design: Study guide. - Sumy: Sumy State University Publishing House, 2008. 158 p. 6. Konstantinov S.M. Heat transfer. - Kyiv: Polytechnic and Press, 2005. - 305 p. 7. Draganov B.H., Dolinsky A.A., Mishchenko A.V. et al. Heat engineering. - Kyiv: Lybid, 2005. - 360 p. 8. Vasylenko S.M., Ukrainets A.I., Olishevskyi V.V. Fundamentals of heat and mass transfer: Textbook / Edited by Academician of the Ukrainian Academy of Sciences I.S. Gulyi - K.: NUFT, 2004. - 250 p.
Уніфікований додаток: Lviv Polytechnic National University ensures the realization of the right of persons with disabilities to obtain higher education. Inclusive educational services are provided by the Service of accessibility to learning opportunities "Without restrictions", the purpose of which is to provide permanent individual support for the educational process of students with disabilities and chronic diseases. An important tool for the implementation of the inclusive educational policy at the University is the Program for improving the qualifications of scientific and pedagogical workers and educational and support staff in the field of social inclusion and inclusive education. Contact at: St. Karpinsky, 2/4, 1st floor, room 112 E-mail: nolimits@lpnu.ua Websites: https://lpnu.ua/nolimits https://lpnu.ua/integration
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).

Heat and Mass Transfer (курсовий проєкт)

Major: Thermal Power Engineering
Code of subject: 6.144.00.O.023
Credits: 3.00
Department: Heat Engineering and Thermal and Nuclear Power Plants
Lecturer: Tetiana Rуmar, Ph.D., Associate Professor
Semester: 4 семестр
Mode of study: денна
Мета вивчення дисципліни: Study of the principles of heat and mass transfer as a complex scientific and engineering discipline, as well as methods of their application for the analysis and calculation of processes occurring at thermal power plants and other heat and power and heat engineering installations; providing students with knowledge in the field of heat and mass transfer, laying the foundation for mastering the core disciplines of the specialty, developing skills and abilities to creatively use the basic laws of heat and mass transfer in solving specific problems in the field of design, adjustment, and maintenance of heat and mass transfer systems. As a result of studying the discipline, students must master the methods of calculating the basic processes of heat and mass transfer: thermal conductivity in structural elements, heat and mass transfer by free and forced convection, two-phase heat and mass transfer, radiation heat transfer, be able to calculate heat exchangers and apply methods of heat transfer intensification.
Завдання: The study of the discipline involves the formation of competencies from education: Integral competence: INT. The ability to solve complex general, specialized tasks and practical problems in the field of heat and power engineering or in the learning process, which involves the application of theories and methods of electrical engineering and is characterized by complexity and uncertainty of conditions. General competencies: GC 2. Basic knowledge in the field of thermal power engineering necessary for the development of professionally oriented disciplines; GC 5. Ability to apply knowledge in practice; GC 6. Ability to search and analyze information from various sources; GC 9. Ability to solve problems and make appropriate decisions; GC 14. Creativity, ability to systematic thinking; GC 16. Responsibility for the quality of work performed.
Learning outcomes: As a result of studying the academic discipline, the student must be able to demonstrate the following program learning outcomes: PLO 2. To know and understand the engineering sciences underlying the specialty «Heat and Power Engineering» of the relevant specialization at the level necessary to achieve other results of the educational program, including a certain awareness of the latest achievements of science and technology in the field of heat and power engineering. PLO 9. Be able to find the necessary information in technical literature, scientific databases and other sources of information, critically evaluate and analyze it. PLO 14. Have the skills to solve complex problems and practical problems involving the implementation of engineering projects and research in accordance with the specialization. PLO 18. To be able to manage professional activities, participate in project work, and be responsible for decision-making in the field of heat and power engineering.
Required prior and related subjects: Prerequisites: - Higher mathematics, - Physics, - Technical thermodynamics; co-requisites: - Heat-mass Exchange Machines of Thermal Power Plants, - Heat-mass Exchange Machines of Industrial Enterprises, - Thermal Power Plants, - Boiler Units of Thermal Power Plants, - Boiler Units of Heat Power Engineering Units.
Summary of the subject: The theory of heat and mass transfer is the scientific basis for methods of calculation, design, and operation of heat exchangers, pipelines, thermal insulation, heat supply systems, steam generators, steam power equipment systems, internal combustion engines, and means of measuring and controlling thermal processes.
Опис: The course project consists of three interrelated parts (sections): - calculation of the geometric dimensions of the heat exchanger and heat losses; - calculation of heat losses by the heating main; - approximate calculation of the geometric dimensions of the boiler and heat losses.
Assessment methods and criteria: The assessment of knowledge is provided by current (written component) and final examinations. Current control involves the assessment of the following components: - timeliness of fulfillment of the course design work schedule - relevance and justification of decisions made; - correct application of analysis and calculation methods; - quality of design, compliance with the requirements of regulatory documents. The final control involves assessing the following components: - the degree of mastery of the material - completeness of the analysis of possible options; - degree of justification of decisions made; - ability to defend one's opinion.
Критерії оцінювання результатів навчання: • written component (30%): quality of calculations and explanatory notes; • summative assessment (70%, credit): defense of сoursework.
Порядок та критерії виставляння балів та оцінок: 100–88 points – (“excellent”) is awarded for a high level of knowledge (some inaccuracies are allowed) of the educational material of the component contained in the main and additional recommended literary sources, the ability to analyze the phenomena being studied in their interrelationship and development, clearly, succinctly, logically, consistently answer the questions, the ability to apply theoretical provisions when solving practical problems; 87–71 points – (“good”) is awarded for a generally correct understanding of the educational material of the component, including calculations, reasoned answers to the questions posed, which, however, contain certain (insignificant) shortcomings, for the ability to apply theoretical provisions when solving practical tasks; 70 – 50 points – (“satisfactory”) awarded for weak knowledge of the component’s educational material, inaccurate or poorly reasoned answers, with a violation of the sequence of presentation, for weak application of theoretical provisions when solving practical problems; 49-26 points - ("not certified" with the possibility of retaking the semester control) is awarded for ignorance of a significant part of the educational material of the component, significant errors in answering questions, inability to apply theoretical provisions when solving practical problems; 25-00 points - ("unsatisfactory" with mandatory re-study) is awarded for ignorance of a significant part of the educational material of the component, significant errors in answering questions, inability to navigate when solving practical problems, ignorance of the main fundamental provisions.
Recommended books: 1. Heat-mass exchange in examples and problems: Study guide /M.M. Chepurnyi, N.V. Rezydent. – Vinnytsia: VNTU, 2011. – 128 p. 2. Heat transfer // Konstantynov S.M. – Kyiv: Politekhnika i pres, 2005. – 305 p. 3. Thermal engineering // Drahanov B.Kh., Dolinskyi A.A., Mishchenko A.V. et al. – Kyiv: Lybid, 2005. – 360 p. 4. Heat-mass exchange // Labay V.Y. College textbook. – Lviv: Triada Plius, 2004. – 260 p. 5. Heat-mass exchange (theoretical framework and basis of design) // Pohorielov A.I. Manual for graduate students. 2nd edition. – Lviv: «Novyi Svit – 2000», 2004. – 144 p.
Уніфікований додаток: Lviv Polytechnic National University ensures the realization of the right of persons with disabilities to obtain higher education. Inclusive educational services are provided by the Service of accessibility to learning opportunities "Without restrictions", the purpose of which is to provide permanent individual support for the educational process of students with disabilities and chronic diseases. An important tool for the implementation of the inclusive educational policy at the University is the Program for improving the qualifications of scientific and pedagogical workers and educational and support staff in the field of social inclusion and inclusive education. Contact at: St. Karpinsky, 2/4, 1st floor, room 112 E-mail: nolimits@lpnu.ua Websites: https://lpnu.ua/nolimits https://lpnu.ua/integration
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 № 35).