Operating Modes of Thermal Power Plants Units

Major: Thermal Power Engineering
Code of subject: 6.144.01.E.098
Credits: 5.00
Department: Heat Engineering and Thermal and Nuclear Power Plants
Lecturer: Senior Lecturer of a higher education institution Zayats Мariya Fedorivna
Semester: 8 семестр
Mode of study: денна
Learning outcomes: As a result of studying this course, future specialists should gain knowledge of TPP operation technology in the conditions of changing load regimes and have a clear idea of the real maneuverability of modern TPP power equipment. The study of an academic discipline involves the formation and development of students: general competences: ZK5: ability to apply knowledge in practice; ZK6: the ability to search and analyze information from various sources; ZK9: the ability to solve tasks and make appropriate decisions; ZK15: potential for further education. professional competences: FК2: basic knowledge of the main regulatory and legal acts and reference materials, current standards and technical conditions, instructions and other regulatory documents in the field of heat energy; FК6: knowledge of modern technological processes and systems of technological preparation of production. As a result of studying the academic discipline, the student must be able to demonstrate the following program learning outcomes: PR5: Choose and apply suitable typical analytical, calculation and experimental methods; correctly interpret the results of such studies. PR13: Understand the main methods of design and research in thermal energy, as well as their limitations. PR14: To have the skills to solve complex problems and practical problems involving the implementation of engineering projects and conducting research in accordance with specialization. PR15: Understand the main properties and limitations of applied materials, equipment and tools, engineering technologies and processes.
Required prior and related subjects: Prerekvizyty: mathematical modeling in heat energy, operation of heat energy facilities, thermal power stations; Korekvizyty: installation and repair of TPP facilities, performance of bachelor's qualification work.
Summary of the subject: Energy resources, types of stations, TPP load schedules. The thermal scheme of a thermal power plant for operation on different types of fuel. Basic schemes of TPP operation. Ways of covering power system load schedules and requirements for thermal power plant operating characteristics. Operating modes of power units at nominal, sliding and combined pressure. Power unit overload mode. Load range of power units during operation in different modes. Characteristics of partial loads of heat-generating equipment. Operation of drum and direct-flow boilers at partial loads. Operation of TPP facilities in conditions of a sharply variable electrical load schedule. Transient processes in thermal power equipment. Factors that determine the reliability of boiler operation in transient modes. The main constructive solutions of chamber fuels, profile and layout. Aerodynamics of chamber fuels. Mode of hydrodynamics in screens of steam boilers with natural circulation. Mode, structure of the steam-water mixture in the pipes and characteristics of the flow of the working medium. Schemes of water-steam tracts of TPP boilers. Hydrodynamics of boilers with natural circulation. Hydrodynamics of direct-flow boilers. Peculiarities of operation of metal pipes of heating surfaces. Types and sizes of steam boilers. Methods of regulating overheating. The value of the stability of superheated steam. Basic schemes of regulation of superheated steam. Mode characteristics of low-temperature heating surfaces. Separation and washing of steam. Factors affecting droplet removal. Systems of the gas-air tract. Modes of operation of boiler units with supercharging and balanced traction. Modes that cause contamination of external heating surfaces. Abrasive wear, corrosion, and cleaning of heating surfaces. Start-up and stop modes of thermal power equipment. Protection of external and internal heating surfaces during idle time of thermal power equipment in reserve.
Assessment methods and criteria: Current control (28%), oral examination. - Final control (72%) control measure, test
Recommended books: 1. Objects of thermal power stations. Modes of operation and operation/ Y.S. Mysak, Y.F. Ivasyk, P.O. Gut, N.M. Lashkovska Lviv, Lviv Polytechnic National University, 2007. -256p. 2. Yanko P.I., Mysak Y.S. Modes of operation of energy boilers. - Lviv: Ukrainian Technologies Fund, 2004. -270p. 3. Stepanov D.V. Boiler installations of industrial enterprises: training. guide/ D.V. Stepanov, E.S. Korzhenko, L.A. Bodnar.– Vinnytsia: VNTU, 2011. - 120 p. 4. Rules for the technical operation of electrical stations and networks. Manual. Volume I and II/ Edited by Y.S. Mysaka - K.: OEP "GRIFRE", 2008, -1110p. 5. Technical operation of electrical stations and networks. Rules. GDK 34.20.507. - K.: OEP "GRIFRE", 2003. -508 p.