Course detail
Boilers and Heat Exchangers
FSI-IKT Acad. year: 2024/2025 Winter semester
The subject contains two parts. The first part will introduce the basic types of heat exchangers (recuperative, regenerative, mixing). Students will acquire the basic principles of design and selection of heat exchangers. In the second part, students will be acquainted with the operational characteristics of steam and hot water boilers. The properties of fuels and their impacts on the design and operation of combustion plants in energy centers are presented. Furthermore, the statics of combustion, heat balance of boilers and individual types of furnace fires according to the fuel used.
Language of instruction
Czech
Number of ECTS credits
5
Supervisor
Department
Entry knowledge
Thermomechanics
Rules for evaluation and completion of the course
Assesment methods and criteria linked to learning outcomes: Course-unit credit is awarded on condition of obtaining 12 points from the written test (maximum 20 points). Examination: written exam and oral correction. The written part consists of points, for successful completion it is necessary to achieve at least 50% of achievable points.
Controlled participation in lessons: Exercises are compulsory. The student will be compensated for absence by agreement with the tutor. Lectures are optional.
Aims
The aim is to acquaint students with the current state and theoretical designs of boilers and heat exchangers and with modern trends in the development of these devices. Upon completion of this course, the student should be aware of the types and properties of fuels and their impact on the design of the boiler and will be able to basic thermal calculation necessary to design a boiler or heat exchanger.
Students will be able to apply theoretical knowledge especially from thermomechanics, hydromechanics and heat and mass transfer in the design of combustion equipment and heat exchanger.
The study programmes with the given course
Programme C-AKR-P: , Lifelong learning
specialization CZS: , elective
Programme N-ETI-P: Power and Thermo-fluid Engineering, Master's
specialization ENI: Power Engineering, compulsory
Programme N-ETI-P: Power and Thermo-fluid Engineering, Master's
specialization FLI: Fluid Engineering, compulsory
Programme N-ETI-P: Power and Thermo-fluid Engineering, Master's
specialization TEP: Environmental Engineering, compulsory
Type of course unit
Lecture
39 hours, optionally
Teacher / Lecturer
Syllabus
1. Introduction, heat transfer basics
2. Classification of heat exchangers and their distribution, design specifics
3. Design of heat exchangers
4. Operation of heat exchangers, operational failures
5. Classification of boilers, basic questions in the design of combustion plants, solid fuels and their properties
6. Liquid and gaseous fuels and their properties
7. Statics of combustion, boiler thermal efficiency, losses;
8. Fireplace, grate boiler fire
9. Fireplaces of powder and fluidized bed boilers
10. Boilers for combustion of liquid and gaseous fuels, burners
11. Steam boiler section, combustion air heating
12. Thermal equipment for energy recovery of biomass and waste
13. Gasification, new trends in combustion, Oxy-fuel
Computer-assisted exercise
26 hours, compulsory
Teacher / Lecturer
Syllabus
1. Selected chapters from thermomechanics
2. Introduction to energy balances
3. Basics of heat transfer
4. Heat transfer, criterion equation
5. Basic design of a tube heat exchanger
6. Basic design of plate heat exchanger
7. Stoichiometric calculations of solid fuel combustion
8. Stoichiometric calculations of combustion of gaseous fuels
9. Boiler losses and efficiency
10. Calculation of basic parameters of fluidized bed
11. Individual task
13. Test, credit