• Thermal Energy, Semester 2, position 5

Reaching the competence and academic skills and methods for it's acquiring. Developing creative capabilities and mastering the specific practical skills. Goals determine the specific results which should be achieved within the subject. Goals also represent basis for control of the achieved results. Activities in this subject are in accordance with basic tasks and goals of the study program.

After successfully completing the course, the students will be able to: • Perform a thermal calculation of the boiler heat surfaces. • Select the fuel bed combustion systems. • Choose the device for pulverized coal preparation. • Perform the air and flue gases aerodynamic calculations of the power plant steam boiler. • Acquainted with hydrodynamic principles of evaporator with natural and forced convection, water heater and superheater.

Thermal calculation of the steam boiler heating surfaces; Devices for fuel bed combustion - flat grate stoker, chain grate stoker, inclined grate stokers; Coal dust preparation systems; Mill processes; Heat and material balance of coal drying process in mills; Mill constructions; Coal dust separators; Mill gas classifiers; Coal dust burners; Aerodynamic of the air and flue gas tract (balanced draft boiler, forced draft boiler and natural draft boiler, choice of fan and it's regulation); Hydrodynamics of steam boiler (hydrodynamics of water heater, evaporator and superheater).

Auditory exercises consist from demonstration exercises (Classification and construction of steam boilers with appropriate heating surfaces, auxiliary devices and equipment); Working project - Thermal calculation of industrial steam boiler; Thermal calculation and dimensioning of heating surfaces (furnace, convection evaporator, convection superheaters, water heater and air heater); After dimensioning steam boiler heating surfaces, it's necessary to make steam boiler drawing in three sections.

Necessary condition: Bachelor's degree and passed Power steam boilers 1.

Handouts which will be at student's disposal a week in advance.

Total assigned hours: 75

New material: 20
Elaboration and examples (recapitulation): 10

Auditory exercises: 10
Laboratory exercises: 0
Calculation tasks: 0
Seminar paper: 0
Project: 10
Consultations: 0
Discussion/workshop: 10
Research study work: 0

Review and grading of calculation tasks: 0
Review and grading of lab reports: 0
Review and grading of seminar papers: 0
Review and grading of the project: 4
Test: 6
Test: 0
Final exam: 5

Activity during lectures: 0
Test/test: 30
Laboratory practice: 0
Calculation tasks: 0
Seminar paper: 0
Project: 30
Final exam: 40
Requirement for taking the exam (required number of points): 30

Lj. Brkic, T. Zivanovic, D. Tucakovic: Steam Boilers, Faculty of Mechanical Engineering, Belgrade, 2010, (In Serbian); Lj. Brkic, T. Zivanovic, D. Tucakovic: Steam Boilers Thermal Calculation, Faculty of Mechanical Engineering, Belgrade, 2010, (In Serbian)